diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/README.md b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/README.md
new file mode 100644
index 0000000..44cec11
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/README.md
@@ -0,0 +1,16 @@
+This test verifies DHCP relay functions:
+  - Clients gets IP or IPv6 address from DHCP server
+  - The host store and router store should includes specific hosts and routes.
+
+It consists of:
+1) Configure and install ONOS cluster
+2) Start Mininet and check host discovery and IP assignment
+
+<h3>Requirements</h3>
+ - Trellis leaf-spine fabric: please visit following URL to set up Trellis leaf-spine fabric
+ https://github.com/opennetworkinglab/routing/tree/master/trellis
+ - ONOS_APPS=drivers,openflow,segmentrouting,fpm,dhcprelay,netcfghostprovider,routeradvertisement
+
+<h3>Topologies</h3>
+- 2x2 single ToR
+- 2x4 dual-homed ToR
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/SRDhcprelay.params b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/SRDhcprelay.params
new file mode 100644
index 0000000..e7bb813
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/SRDhcprelay.params
@@ -0,0 +1,42 @@
+<PARAMS>
+    <testcases>1,2,11,12,21,22,31,41,51,61,71</testcases>
+
+    <GRAPH>
+        <nodeCluster>VM</nodeCluster>
+        <builds>20</builds>
+    </GRAPH>
+
+    <SCALE>
+        <size>3</size>
+        <max>3</max>
+    </SCALE>
+
+    <DEPENDENCY>
+        <topology>trellis_fabric.py</topology>
+        <lib>routinglib.py,trellislib.py</lib>
+        <testConf>dhcpd.conf,dhcpd6.conf,bgpdr1.conf,bgpdr2.conf,bgpdbgp1.conf,zebradbgp1.conf,bgpdbgp2.conf,zebradbgp2.conf</testConf>
+    </DEPENDENCY>
+
+    <ENV>
+        <cellName>productionCell</cellName>
+        <cellApps>drivers,openflow,segmentrouting,fpm,dhcprelay,netcfghostprovider,routeradvertisement</cellApps>
+    </ENV>
+
+    <GIT>
+        <pull>False</pull>
+        <branch>master</branch>
+    </GIT>
+
+    <CTRL>
+        <port>6653</port>
+    </CTRL>
+
+    <timers>
+        <LinkDiscovery>12</LinkDiscovery>
+        <SwitchDiscovery>12</SwitchDiscovery>
+    </timers>
+
+    <SLEEP>
+        <startup>10</startup>
+    </SLEEP>
+</PARAMS>
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/SRDhcprelay.py b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/SRDhcprelay.py
new file mode 100644
index 0000000..13ea4dd
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/SRDhcprelay.py
@@ -0,0 +1,291 @@
+class SRDhcprelay:
+    def __init__( self ):
+        self.default = ''
+
+    def CASE1( self, main ):
+        """
+        DHCP v4 tests
+        Client: 4 clients attached to switch directly
+        Server: 1 server attached to switch directly
+        Sets up 3 ONOS instance
+        """
+        from tests.USECASE.SegmentRouting.SRDhcprelay.dependencies.SRDhcprelayTest import SRDhcprelayTest
+        SRDhcprelayTest.runTest( main,
+                                 testIndex=1,
+                                 onosNodes=3,
+                                 description="DHCP v4 tests with 4 clients attached to switch directly and 1 server attached to switch directly" )
+
+    def CASE2( self, main ):
+        """
+        DHCP v4 tests
+        Client: 4 clients attached to switch directly
+        Server: 1 server attached to switch indirectly (via gateway)
+        Sets up 3 ONOS instance
+        """
+        from tests.USECASE.SegmentRouting.SRDhcprelay.dependencies.SRDhcprelayTest import SRDhcprelayTest
+        SRDhcprelayTest.runTest( main,
+                                 testIndex=2,
+                                 onosNodes=3,
+                                 description="DHCP v4 tests with 4 clients attached to switch directly and 1 server attached to switch indirectly (via gateway)",
+                                 remoteServer=True )
+
+    def CASE3( self, main ):
+        """
+        DHCP v4 tests
+        Client: 2 clients attached to switch directly, 2 clients via DHCP relay
+        Server: 1 server attached to switch directly
+        Sets up 3 ONOS instance
+        """
+        from tests.USECASE.SegmentRouting.SRDhcprelay.dependencies.SRDhcprelayTest import SRDhcprelayTest
+        SRDhcprelayTest.runTest( main,
+                                 testIndex=3,
+                                 onosNodes=3,
+                                 description="DHCP v4 tests with 2 clients attached to switch directly and 2 clients via DHCP relay and and 1 server attached to switch directly",
+                                 dhcpRelay=True )
+
+    def CASE4( self, main ):
+        """
+        DHCP v4 tests
+        Client: 2 clients attached to switch directly, 2 clients via DHCP relay
+        Server: 1 server attached to switch indirectly (via gateway)
+        Sets up 3 ONOS instance
+        """
+        from tests.USECASE.SegmentRouting.SRDhcprelay.dependencies.SRDhcprelayTest import SRDhcprelayTest
+        SRDhcprelayTest.runTest( main,
+                                 testIndex=4,
+                                 onosNodes=3,
+                                 description="DHCP v4 tests with 4 clients attached to switch directly and 2 clients via DHCP relay and and 1 server attached to switch indirectly (via gateway)",
+                                 dhcpRelay=True,
+                                 remoteServer=True )
+
+    def CASE5( self, main ):
+        """
+        DHCP v4 tests
+        Client: 2 clients attached to switch directly, 2 clients via DHCP relay
+        Server: 1 server attached to switch directly for directly connected hosts
+                another server attached to switch directly for indirectly connected hosts
+        Sets up 3 ONOS instance
+        """
+        from tests.USECASE.SegmentRouting.SRDhcprelay.dependencies.SRDhcprelayTest import SRDhcprelayTest
+        SRDhcprelayTest.runTest( main,
+                                 testIndex=5,
+                                 onosNodes=3,
+                                 description="DHCP v4 tests with 2 clients attached to switch directly, 2 clients via DHCP relay and, 1 server attached to switch directly for direcly connected hosts and another server attached to switch directly for indirectly connected hosts",
+                                 dhcpRelay=True,
+                                 multipleServer=True )
+
+    def CASE6( self, main ):
+        """
+        DHCP v4 tests
+        Client: 2 clients attached to switch directly, 2 clients via DHCP relay
+        Server: 1 server attached to switch directly for directly connected hosts
+                another server attached to switch directly for indirectly connected hosts
+                "DhcpRelayAgentIp" addresses are configured for indirect hosts
+        Sets up 3 ONOS instance
+        """
+        from tests.USECASE.SegmentRouting.SRDhcprelay.dependencies.SRDhcprelayTest import SRDhcprelayTest
+        SRDhcprelayTest.runTest( main,
+                                 testIndex=6,
+                                 onosNodes=3,
+                                 description="DHCP v4 tests with 2 clients attached to switch directly, 2 clients via DHCP relay and, 1 server attached to switch directly for direcly connected hosts and another server attached to switch directly for indirectly connected hosts, 'DhcpRelayAgentIp' addresses are configured for indirect hosts",
+                                 dhcpRelay=True,
+                                 multipleServer=True )
+
+    def CASE11( self, main ):
+        """
+        DHCP v6 tests
+        Client: 4 clients attached to switch directly
+        Server: 1 server attached to switch directly
+        Sets up 3 ONOS instance
+        """
+        from tests.USECASE.SegmentRouting.SRDhcprelay.dependencies.SRDhcprelayTest import SRDhcprelayTest
+        SRDhcprelayTest.runTest( main,
+                                 testIndex=11,
+                                 onosNodes=3,
+                                 description="DHCP v6 tests with 4 clients attached to switch directly and 1 server attached to switch directly",
+                                 ipv6=True )
+
+    def CASE12( self, main ):
+        """
+        DHCP v6 tests
+        Client: 4 clients attached to switch directly
+        Server: 1 server attached to switch indirectly (via gateway)
+        Sets up 3 ONOS instance
+        """
+        from tests.USECASE.SegmentRouting.SRDhcprelay.dependencies.SRDhcprelayTest import SRDhcprelayTest
+        SRDhcprelayTest.runTest( main,
+                                 testIndex=12,
+                                 onosNodes=3,
+                                 description="DHCP v6 tests with 4 clients attached to switch directly and 1 server attached to switch indirectly (via gateway)",
+                                 remoteServer=True,
+                                 ipv6=True )
+
+    def CASE13( self, main ):
+        """
+        DHCP v6 tests
+        Client: 2 clients attached to switch directly, 2 clients via DHCP relay
+        Server: 1 server attached to switch directly
+        Sets up 3 ONOS instance
+        """
+        from tests.USECASE.SegmentRouting.SRDhcprelay.dependencies.SRDhcprelayTest import SRDhcprelayTest
+        SRDhcprelayTest.runTest( main,
+                                 testIndex=13,
+                                 onosNodes=3,
+                                 description="DHCP v6 tests with 2 clients attached to switch directly and 2 clients via DHCP relay and and 1 server attached to switch directly",
+                                 dhcpRelay=True,
+                                 ipv6=True )
+
+    def CASE14( self, main ):
+        """
+        DHCP v6 tests
+        Client: 2 clients attached to switch directly, 2 clients via DHCP relay
+        Server: 1 server attached to switch indirectly (via gateway)
+        Sets up 3 ONOS instance
+        """
+        from tests.USECASE.SegmentRouting.SRDhcprelay.dependencies.SRDhcprelayTest import SRDhcprelayTest
+        SRDhcprelayTest.runTest( main,
+                                 testIndex=14,
+                                 onosNodes=3,
+                                 description="DHCP v6 tests with 4 clients attached to switch directly and 2 clients via DHCP relay and and 1 server attached to switch indirectly (via gateway)",
+                                 dhcpRelay=True,
+                                 remoteServer=True,
+                                 ipv6=True )
+
+    def CASE15( self, main ):
+        """
+        DHCP v6 tests
+        Client: 2 clients attached to switch directly, 2 clients via DHCP relay
+        Server: 1 server attached to switch directly for directly connected hosts
+                another server attached to switch directly for indirectly connected hosts
+        Sets up 3 ONOS instance
+        """
+        from tests.USECASE.SegmentRouting.SRDhcprelay.dependencies.SRDhcprelayTest import SRDhcprelayTest
+        SRDhcprelayTest.runTest( main,
+                                 testIndex=15,
+                                 onosNodes=3,
+                                 description="DHCP v6 tests with 2 clients attached to switch directly, 2 clients via DHCP relay and, 1 server attached to switch directly for direcly connected hosts and another server attached to switch directly for indirectly connected hosts",
+                                 dhcpRelay=True,
+                                 multipleServer=True,
+                                 ipv6=True )
+
+    def CASE16( self, main ):
+        """
+        DHCP v6 tests
+        Client: 2 clients attached to switch directly, 2 clients via DHCP relay
+        Server: 1 server attached to switch directly for directly connected hosts
+                another server attached to switch directly for indirectly connected hosts
+                "DhcpRelayAgentIp" addresses are configured for indirect hosts
+        Sets up 3 ONOS instance
+        """
+        from tests.USECASE.SegmentRouting.SRDhcprelay.dependencies.SRDhcprelayTest import SRDhcprelayTest
+        SRDhcprelayTest.runTest( main,
+                                 testIndex=16,
+                                 onosNodes=3,
+                                 description="DHCP v6 tests with 2 clients attached to switch directly, 2 clients via DHCP relay and, 1 server attached to switch directly for direcly connected hosts and another server attached to switch directly for indirectly connected hosts, 'DhcpRelayAgentIp' addresses are configured for indirect hosts",
+                                 dhcpRelay=True,
+                                 multipleServer=True,
+                                 ipv6=True )
+
+    def CASE21( self, main ):
+        """
+        DHCP v4 tests with tagged hosts
+        Client: 4 clients attached to switch directly
+        Server: 1 server attached to switch directly
+        Sets up 3 ONOS instance
+        """
+        from tests.USECASE.SegmentRouting.SRDhcprelay.dependencies.SRDhcprelayTest import SRDhcprelayTest
+        SRDhcprelayTest.runTest( main,
+                                 testIndex=21,
+                                 onosNodes=3,
+                                 description="DHCP v4 tests with tagged hosts: 4 clients attached to switch directly and 1 server attached to switch directly",
+                                 vlan=[ 20, 20, 30, 30 ] )
+
+    def CASE22( self, main ):
+        """
+        DHCP v4 tests with tagged hosts
+        Client: 4 clients attached to switch directly
+        Server: 1 server attached to switch indirectly (via gateway)
+        Sets up 3 ONOS instance
+        """
+        from tests.USECASE.SegmentRouting.SRDhcprelay.dependencies.SRDhcprelayTest import SRDhcprelayTest
+        SRDhcprelayTest.runTest( main,
+                                 testIndex=22,
+                                 onosNodes=3,
+                                 description="DHCP v4 tests with 4 clients attached to switch directly and 1 server attached to switch indirectly (via gateway)",
+                                 remoteServer=True,
+                                 vlan=[ 20, 20, 30, 30 ] )
+
+    def CASE31( self, main ):
+        """
+        DHCP v6 tests with tagged hosts
+        Client: 4 clients attached to switch directly
+        Server: 1 server attached to switch directly
+        Sets up 3 ONOS instance
+        """
+        from tests.USECASE.SegmentRouting.SRDhcprelay.dependencies.SRDhcprelayTest import SRDhcprelayTest
+        SRDhcprelayTest.runTest( main,
+                                 testIndex=31,
+                                 onosNodes=3,
+                                 description="DHCP v6 tests with tagged hosts: 4 clients attached to switch directly and 1 server attached to switch directly",
+                                 ipv6=True,
+                                 vlan=[ 40, 40, 50, 50 ] )
+
+    def CASE41( self, main ):
+        """
+        DHCP v4 tests with dual-homed hosts
+        Client: 4 clients attached to switch directly
+        Server: 1 server attached to switch directly
+        Sets up 3 ONOS instance
+        """
+        from tests.USECASE.SegmentRouting.SRDhcprelay.dependencies.SRDhcprelayTest import SRDhcprelayTest
+        SRDhcprelayTest.runTest( main,
+                                 testIndex=41,
+                                 onosNodes=3,
+                                 description="DHCP v4 tests with dual-homed hosts: 4 clients attached to switch directly and 1 server attached to switch directly",
+                                 dualHomed=True )
+
+    def CASE51( self, main ):
+        """
+        DHCP v6 tests with dual-homed hosts
+        Client: 4 clients attached to switch directly
+        Server: 1 server attached to switch directly
+        Sets up 3 ONOS instance
+        """
+        from tests.USECASE.SegmentRouting.SRDhcprelay.dependencies.SRDhcprelayTest import SRDhcprelayTest
+        SRDhcprelayTest.runTest( main,
+                                 testIndex=51,
+                                 onosNodes=3,
+                                 description="DHCP v6 tests with dual-homed hosts: 4 clients attached to switch directly and 1 server attached to switch directly",
+                                 ipv6=True,
+                                 dualHomed=True )
+
+    def CASE61( self, main ):
+        """
+        DHCP v4 tests with dual-homed tagged hosts
+        Client: 4 clients attached to switch directly
+        Server: 1 server attached to switch directly
+        Sets up 3 ONOS instance
+        """
+        from tests.USECASE.SegmentRouting.SRDhcprelay.dependencies.SRDhcprelayTest import SRDhcprelayTest
+        SRDhcprelayTest.runTest( main,
+                                 testIndex=61,
+                                 onosNodes=3,
+                                 description="DHCP v4 tests with dual-homed tagged hosts: 4 clients attached to switch directly and 1 server attached to switch directly",
+                                 vlan=[ 20, 20, 30, 30 ],
+                                 dualHomed=True )
+
+    def CASE71( self, main ):
+        """
+        DHCP v6 tests with dual-homed tagged hosts
+        Client: 4 clients attached to switch directly
+        Server: 1 server attached to switch directly
+        Sets up 3 ONOS instance
+        """
+        from tests.USECASE.SegmentRouting.SRDhcprelay.dependencies.SRDhcprelayTest import SRDhcprelayTest
+        SRDhcprelayTest.runTest( main,
+                                 testIndex=71,
+                                 onosNodes=3,
+                                 description="DHCP v6 tests with dual-homed tagged hosts: 4 clients attached to switch directly and 1 server attached to switch directly",
+                                 ipv6=True,
+                                 vlan=[ 40, 40, 50, 50 ],
+                                 dualHomed=True )
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/SRDhcprelay.topo b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/SRDhcprelay.topo
new file mode 100644
index 0000000..01316b6
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/SRDhcprelay.topo
@@ -0,0 +1,36 @@
+<TOPOLOGY>
+    <COMPONENT>
+        <ONOScell>
+            <host>localhost</host>  # ONOS "bench" machine
+            <user>sdn</user>
+            <password>rocks</password>
+            <type>OnosClusterDriver</type>
+            <connect_order>1</connect_order>
+            <COMPONENTS>
+                <cluster_name></cluster_name>  # Used as a prefix for cluster components. Defaults to 'ONOS'
+                <diff_clihost></diff_clihost> # if it has different host other than localhost for CLI. True or empty. OC# will be used if True.
+                <karaf_username></karaf_username>
+                <karaf_password></karaf_password>
+                <web_user></web_user>
+                <web_pass></web_pass>
+                <rest_port></rest_port>
+                <prompt></prompt>  # TODO: we technically need a few of these, one per component
+                <onos_home></onos_home>  # defines where onos home is
+                <nodes>3</nodes>  # number of nodes in the cluster
+            </COMPONENTS>
+        </ONOScell>
+
+        <Mininet1>
+            <host>OCN</host>
+            <user>sdn</user>
+            <password>rocks</password>
+            <type>MininetCliDriver</type>
+            <connect_order>2</connect_order>
+            <COMPONENTS>
+                <home>~/mininet/custom/</home>
+                <prompt></prompt>
+            </COMPONENTS>
+        </Mininet1>
+
+    </COMPONENT>
+</TOPOLOGY>
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/__init__.py b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/__init__.py
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/SRDhcprelayTest.py b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/SRDhcprelayTest.py
new file mode 100644
index 0000000..1ac4f7a
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/SRDhcprelayTest.py
@@ -0,0 +1,81 @@
+"""
+Copyright 2017 Open Networking Foundation ( ONF )
+
+Please refer questions to either the onos test mailing list at <onos-test@onosproject.org>,
+the System Testing Plans and Results wiki page at <https://wiki.onosproject.org/x/voMg>,
+or the System Testing Guide page at <https://wiki.onosproject.org/x/WYQg>
+
+    TestON is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 2 of the License, or
+    ( at your option ) any later version.
+
+    TestON is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with TestON.  If not, see <http://www.gnu.org/licenses/>.
+"""
+
+from tests.USECASE.SegmentRouting.dependencies.Testcaselib import Testcaselib as run
+
+class SRDhcprelayTest ():
+
+    def __init__( self ):
+        self.default = ''
+
+    @staticmethod
+    def runTest( main, testIndex, onosNodes, description, dhcpRelay=False, remoteServer=False, multipleServer=False, ipv6=False, vlan=[], dualHomed=False ):
+        skipPackage = False
+        init = False
+        if not hasattr( main, 'apps' ):
+            init = True
+            run.initTest( main )
+        # Skip onos packaging if the clusrer size stays the same
+        if not init and onosNodes == main.Cluster.numCtrls:
+            skipPackage = True
+
+        main.case( '%s, with %d ONOS instance%s' %
+                   ( description, onosNodes, 's' if onosNodes > 1 else '' ) )
+
+        main.cfgName = 'CASE%02d' % testIndex
+        main.configPath = main.path + "/dependencies/"
+        main.resultFileName = 'CASE%02d' % testIndex
+        main.Cluster.setRunningNode( onosNodes )
+        run.installOnos( main, skipPackage=skipPackage, cliSleep=5 )
+        import json
+        with open( "%s/json/%s.host" % ( main.configPath, main.cfgName ) ) as host:
+            main.expectedHosts = json.load( host )
+        if hasattr( main, 'Mininet1' ):
+            # Run the test with Mininet
+            if dualHomed:
+                mininet_args = ' --spine=2 --leaf=4 --dual-homed'
+            else:
+                mininet_args = ' --spine=2 --leaf=2'
+            mininet_args += ' --dhcp-client'
+            if dhcpRelay:
+                mininet_args += ' --dhcp-relay'
+                if multipleServer:
+                    mininet_args += ' --multiple-dhcp-server'
+            if remoteServer:
+                mininet_args += ' --remote-dhcp-server'
+            if ipv6:
+                mininet_args += ' --ipv6'
+            if len( vlan ) > 0 :
+                mininet_args += ' --vlan=%s' % ( ','.join( ['%d' % vlanId for vlanId in vlan ] ) )
+
+            run.startMininet( main, 'trellis_fabric.py', args=mininet_args )
+        else:
+            # Run the test with physical devices
+            # TODO: connect TestON to the physical network
+            pass
+        run.verifyOnosHostIp( main )
+        run.verifyNetworkHostIp( main )
+
+        if hasattr( main, 'Mininet1' ):
+            run.cleanup( main )
+        else:
+            # TODO: disconnect TestON from the physical network
+            pass
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/__init__.py b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/__init__.py
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/__init__.py
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/bgpdbgp1.conf b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/bgpdbgp1.conf
new file mode 100644
index 0000000..8870fb4
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/bgpdbgp1.conf
@@ -0,0 +1,81 @@
+log file /var/log/quagga/bgpdbgp1.log
+hostname bgp1
+password quagga
+!
+! Different next hop for IPv4
+!
+ip prefix-list 1 seq 10 permit 10.0.2.0/24
+ip prefix-list 1 seq 20 permit 10.1.2.0/24
+ip prefix-list 1 seq 30 permit 10.0.3.0/24
+ip prefix-list 1 seq 40 permit 10.0.4.0/24
+!
+route-map NEXTHOP41 permit 10
+match ip address prefix-list 1
+set ip next-hop 10.0.1.254
+!
+!
+route-map NEXTHOP47 permit 10
+match ip address prefix-list 1
+set ip next-hop 10.0.7.254
+!
+! Different next hop for IPv6
+!
+ipv6 prefix-list 2 seq 10 permit 2000::200/120
+ipv6 prefix-list 2 seq 20 permit 2000::300/120
+!
+route-map NEXTHOP61 permit 10
+match ipv6 address prefix-list 2
+set ipv6 next-hop global 2000::1ff
+set ipv6 next-hop local 2000::1ff
+!
+!
+route-map NEXTHOP67 permit 10
+match ipv6 address prefix-list 2
+set ipv6 next-hop global 2000::7ff
+set ipv6 next-hop local 2000::7ff
+!
+! Basic router config
+!
+router bgp 65003
+bgp router-id 172.16.0.3
+timers bgp 3 9
+!
+! IPv4
+!
+neighbor 10.0.1.1 remote-as 65001
+neighbor 10.0.1.1 ebgp-multihop
+neighbor 10.0.1.1 timers connect 5
+neighbor 10.0.1.1 advertisement-interval 5
+neighbor 10.0.1.1 route-map NEXTHOP41 out
+!
+neighbor 2000::101 remote-as 65001
+neighbor 2000::101 timers connect 5
+neighbor 2000::101 advertisement-interval 1
+no neighbor 2000::101 activate
+!
+neighbor 10.0.7.1 remote-as 65002
+neighbor 10.0.7.1 ebgp-multihop
+neighbor 10.0.7.1 timers connect 5
+neighbor 10.0.7.1 advertisement-interval 5
+neighbor 10.0.7.1 route-map NEXTHOP47 out
+!
+neighbor 2000::701 remote-as 65002
+neighbor 2000::701 timers connect 5
+neighbor 2000::701 advertisement-interval 1
+no neighbor 2000::701 activate
+!
+network 10.0.2.0/24
+network 10.1.2.0/24
+network 10.0.3.0/24
+network 10.0.4.0/24
+!
+! IPv6
+!
+address-family ipv6
+network 2000::200/120
+network 2000::300/120
+neighbor 2000::101 activate
+neighbor 2000::101 route-map NEXTHOP61 out
+neighbor 2000::701 activate
+neighbor 2000::701 route-map NEXTHOP67 out
+exit-address-family
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/bgpdbgp2.conf b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/bgpdbgp2.conf
new file mode 100644
index 0000000..e554de4
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/bgpdbgp2.conf
@@ -0,0 +1,81 @@
+log file /var/log/quagga/bgpdbgp2.log
+hostname bgp2
+password quagga
+!
+! Different next hop for IPv4
+!
+ip prefix-list 1 seq 10 permit 10.0.2.0/24
+ip prefix-list 1 seq 20 permit 10.1.2.0/24
+ip prefix-list 1 seq 30 permit 10.0.3.0/24
+ip prefix-list 1 seq 40 permit 10.0.4.0/24
+!
+route-map NEXTHOP45 permit 10
+match ip address prefix-list 1
+set ip next-hop 10.0.5.254
+!
+!
+route-map NEXTHOP46 permit 10
+match ip address prefix-list 1
+set ip next-hop 10.0.6.254
+!
+! Different next hop for IPv6
+!
+ipv6 prefix-list 2 seq 10 permit 2000::200/120
+ipv6 prefix-list 2 seq 20 permit 2000::300/120
+!
+route-map NEXTHOP65 permit 10
+match ipv6 address prefix-list 2
+set ipv6 next-hop global 2000::5ff
+set ipv6 next-hop local 2000::5ff
+!
+!
+route-map NEXTHOP66 permit 10
+match ipv6 address prefix-list 2
+set ipv6 next-hop global 2000::6ff
+set ipv6 next-hop local 2000::6ff
+!
+! Basic router config
+!
+router bgp 65003
+bgp router-id 172.16.0.4
+timers bgp 3 9
+!
+! IPv4
+!
+neighbor 10.0.5.1 remote-as 65001
+neighbor 10.0.5.1 ebgp-multihop
+neighbor 10.0.5.1 timers connect 5
+neighbor 10.0.5.1 advertisement-interval 5
+neighbor 10.0.5.1 route-map NEXTHOP45 out
+!
+neighbor 2000::501 remote-as 65001
+neighbor 2000::501 timers connect 5
+neighbor 2000::501 advertisement-interval 1
+no neighbor 2000::501 activate
+!
+neighbor 10.0.6.1 remote-as 65002
+neighbor 10.0.6.1 ebgp-multihop
+neighbor 10.0.6.1 timers connect 5
+neighbor 10.0.6.1 advertisement-interval 5
+neighbor 10.0.6.1 route-map NEXTHOP46 out
+!
+neighbor 2000::601 remote-as 65002
+neighbor 2000::601 timers connect 5
+neighbor 2000::601 advertisement-interval 1
+no neighbor 2000::601 activate
+!
+network 10.0.2.0/24
+network 10.1.2.0/24
+network 10.0.3.0/24
+network 10.0.4.0/24
+!
+! IPv6
+!
+address-family ipv6
+network 2000::200/120
+network 2000::300/120
+neighbor 2000::501 activate
+neighbor 2000::501 route-map NEXTHOP65 out
+neighbor 2000::601 activate
+neighbor 2000::601 route-map NEXTHOP66 out
+exit-address-family
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/bgpdr1.conf b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/bgpdr1.conf
new file mode 100644
index 0000000..9e526b8
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/bgpdr1.conf
@@ -0,0 +1,42 @@
+log file /var/log/quagga/bgpdr1.log
+hostname r1
+password quagga
+!
+! Basic router config
+!
+router bgp 65001
+bgp router-id 10.0.1.1
+timers bgp 3 9
+!
+! IPv4
+!
+neighbor 10.0.1.2 remote-as 65003
+neighbor 10.0.1.2 ebgp-multihop
+neighbor 10.0.1.2 timers connect 5
+neighbor 10.0.1.2 advertisement-interval 5
+!
+neighbor 2000::102 remote-as 65003
+neighbor 2000::102 timers connect 5
+neighbor 2000::102 advertisement-interval 1
+no neighbor 2000::102 activate
+!
+neighbor 10.0.5.2 remote-as 65003
+neighbor 10.0.5.2 ebgp-multihop
+neighbor 10.0.5.2 timers connect 5
+neighbor 10.0.5.2 advertisement-interval 5
+!
+neighbor 2000::502 remote-as 65003
+neighbor 2000::502 timers connect 5
+neighbor 2000::502 advertisement-interval 1
+no neighbor 2000::502 activate
+!
+network 10.0.99.0/24
+!
+! IPv6
+!
+address-family ipv6
+network 2000::7700/120
+network 2000::9900/120
+neighbor 2000::102 activate
+neighbor 2000::502 activate
+exit-address-family
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/bgpdr2.conf b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/bgpdr2.conf
new file mode 100644
index 0000000..49553e2
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/bgpdr2.conf
@@ -0,0 +1,42 @@
+log file /var/log/quagga/bgpdr2.log
+hostname r2
+password quagga
+!
+! Basic router config
+!
+router bgp 65002
+bgp router-id 10.0.6.1
+timers bgp 3 9
+!
+! IPv4
+!
+neighbor 10.0.6.2 remote-as 65003
+neighbor 10.0.6.2 ebgp-multihop
+neighbor 10.0.6.2 timers connect 5
+neighbor 10.0.6.2 advertisement-interval 5
+!
+neighbor 2000::602 remote-as 65003
+neighbor 2000::602 timers connect 5
+neighbor 2000::602 advertisement-interval 1
+no neighbor 2000::602 activate
+!
+neighbor 10.0.7.2 remote-as 65003
+neighbor 10.0.7.2 ebgp-multihop
+neighbor 10.0.7.2 timers connect 5
+neighbor 10.0.7.2 advertisement-interval 5
+!
+neighbor 2000::702 remote-as 65003
+neighbor 2000::702 timers connect 5
+neighbor 2000::702 advertisement-interval 1
+no neighbor 2000::702 activate
+!
+network 10.0.99.0/24
+!
+! IPv6
+!
+address-family ipv6
+network 2000::8800/120
+network 2000::9900/120
+neighbor 2000::602 activate
+neighbor 2000::702 activate
+exit-address-family
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/dhcpd.conf b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/dhcpd.conf
new file mode 100644
index 0000000..aa559d2
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/dhcpd.conf
@@ -0,0 +1,55 @@
+ddns-update-style none;
+
+default-lease-time 600;
+max-lease-time 7200;
+
+option domain-name-servers 8.8.8.8, 8.8.4.4;
+option domain-name "trellis.local";
+
+subnet 10.0.2.0 netmask 255.255.255.0 {
+  range 10.0.2.100 10.0.2.240;
+  option routers 10.0.2.254;
+}
+
+subnet 10.1.2.0 netmask 255.255.255.0 {
+  range 10.1.2.100 10.1.2.240;
+  option routers 10.1.2.254;
+}
+
+subnet 10.0.3.0 netmask 255.255.255.0 {
+  range 10.0.3.100 10.0.3.240;
+  option routers 10.0.3.254;
+}
+
+subnet 10.0.4.0 netmask 255.255.255.0 {
+  range 10.0.4.100 10.0.4.240;
+  option routers 10.0.4.254;
+}
+
+subnet 10.0.99.3 netmask 255.255.255.255 {
+}
+
+host h1 {
+  hardware ethernet 00:aa:00:00:00:01;
+  fixed-address 10.0.2.1;
+}
+
+host h2 {
+  hardware ethernet 00:aa:00:00:00:02;
+  fixed-address 10.0.2.2;
+}
+
+host h3 {
+  hardware ethernet 00:aa:00:00:00:03;
+  fixed-address 10.0.3.1;
+}
+
+host h4 {
+  hardware ethernet 00:aa:00:00:00:04;
+  fixed-address 10.0.3.2;
+}
+
+host dh1 {
+  hardware ethernet 00:cc:00:00:00:01;
+  fixed-address 10.1.2.1;
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/dhcpd6.conf b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/dhcpd6.conf
new file mode 100644
index 0000000..526de85
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/dhcpd6.conf
@@ -0,0 +1,37 @@
+default-lease-time 600;
+max-lease-time 7200;
+
+option dhcp6.next-hop code 242 = ip6-address;
+
+subnet6 2000::200/120 {
+  range6 2000::260 2000::2fe;
+  option dhcp6.next-hop 2000::02ff;
+}
+
+subnet6 2000::300/120 {
+  range6 2000::360 2000::3fe;
+  option dhcp6.next-hop 2000::03ff;
+}
+
+subnet6 2000::9903/128 {
+}
+
+host h1v6 {
+  hardware ethernet 00:bb:00:00:00:01;
+  fixed-address6 2000::201;
+}
+
+host h2v6 {
+  hardware ethernet 00:bb:00:00:00:02;
+  fixed-address6 2000::202;
+}
+
+host h3v6 {
+  hardware ethernet 00:bb:00:00:00:03;
+  fixed-address6 2000::301;
+}
+
+host h4v6 {
+  hardware ethernet 00:bb:00:00:00:04;
+  fixed-address6 2000::302;
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/zebradbgp1.conf b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/zebradbgp1.conf
new file mode 100644
index 0000000..51991a4
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/zebradbgp1.conf
@@ -0,0 +1,9 @@
+log file /var/log/quagga/zebradbgp1.log
+hostname zebra-bgp1
+password quagga
+!
+! Default route via virtual management switch
+!
+ip route 0.0.0.0/0 172.16.0.1
+!
+fpm connection ip 192.168.56.11 port 2620
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/zebradbgp2.conf b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/zebradbgp2.conf
new file mode 100644
index 0000000..dce218d
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/conf/zebradbgp2.conf
@@ -0,0 +1,9 @@
+log file /var/log/quagga/zebradbgp2.log
+hostname zebra-bgp2
+password quagga
+!
+! Default route via virtual management switch
+!
+ip route 0.0.0.0/0 172.16.0.1
+!
+fpm connection ip 192.168.56.11 port 2620
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE01.host b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE01.host
new file mode 100644
index 0000000..9428e54
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE01.host
@@ -0,0 +1,16 @@
+{
+    "onos":
+    {
+        "00:AA:00:00:00:01/None": "10.0.2.1",
+        "00:AA:00:00:00:02/None": "10.0.2.2",
+        "00:AA:00:00:00:03/None": "10.0.3.1",
+        "00:AA:00:00:00:04/None": "10.0.3.2"
+    },
+    "network":
+    {
+        "h1": "10.0.2.1",
+        "h2": "10.0.2.2",
+        "h3": "10.0.3.1",
+        "h4": "10.0.3.2"
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE01.json b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE01.json
new file mode 100644
index 0000000..87b7b46
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE01.json
@@ -0,0 +1,112 @@
+{
+    "ports" : {
+        "of:0000000000000001/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-untagged": 20
+                }
+            ]
+        },
+        "of:0000000000000001/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-untagged": 20
+                }
+            ]
+        },
+        "of:0000000000000002/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/5" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.1.254/24" ],
+                    "vlan-untagged": 10
+                }
+            ]
+        }
+    },
+    "devices" : {
+        "of:0000000000000001" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 1,
+                "ipv4Loopback" : "192.168.0.1",
+                "routerMac" : "00:00:00:00:00:01",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000002" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 2,
+                "ipv4Loopback" : "192.168.0.2",
+                "routerMac" : "00:00:00:00:00:02",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000101" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 101,
+                "ipv4Loopback" : "192.168.0.101",
+                "routerMac" : "00:00:00:00:01:01",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000102" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 102,
+                "ipv4Loopback" : "192.168.0.102",
+                "routerMac" : "00:00:00:00:01:02",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        }
+    },
+    "apps" : {
+        "org.onosproject.dhcprelay" : {
+            "default": [
+                {
+                    "dhcpServerConnectPoint": "of:0000000000000002/5",
+                    "serverIps": ["10.0.3.253"]
+                }
+            ]
+        }
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE02.host b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE02.host
new file mode 100644
index 0000000..9428e54
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE02.host
@@ -0,0 +1,16 @@
+{
+    "onos":
+    {
+        "00:AA:00:00:00:01/None": "10.0.2.1",
+        "00:AA:00:00:00:02/None": "10.0.2.2",
+        "00:AA:00:00:00:03/None": "10.0.3.1",
+        "00:AA:00:00:00:04/None": "10.0.3.2"
+    },
+    "network":
+    {
+        "h1": "10.0.2.1",
+        "h2": "10.0.2.2",
+        "h3": "10.0.3.1",
+        "h4": "10.0.3.2"
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE02.json b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE02.json
new file mode 100644
index 0000000..c9b635a
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE02.json
@@ -0,0 +1,121 @@
+{
+    "ports" : {
+        "of:0000000000000001/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-untagged": 20
+                }
+            ]
+        },
+        "of:0000000000000001/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-untagged": 20
+                }
+            ]
+        },
+        "of:0000000000000002/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/5" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.1.254/24" ],
+                    "vlan-untagged": 10
+                }
+            ]
+        },
+        "of:0000000000000002/7" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.1.254/24" ],
+                    "vlan-untagged": 10
+                }
+            ]
+        }
+    },
+    "devices" : {
+        "of:0000000000000001" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 1,
+                "ipv4Loopback" : "192.168.0.1",
+                "routerMac" : "00:00:00:00:00:01",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000002" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 2,
+                "ipv4Loopback" : "192.168.0.2",
+                "routerMac" : "00:00:00:00:00:02",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000101" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 101,
+                "ipv4Loopback" : "192.168.0.101",
+                "routerMac" : "00:00:00:00:01:01",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000102" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 102,
+                "ipv4Loopback" : "192.168.0.102",
+                "routerMac" : "00:00:00:00:01:02",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        }
+    },
+    "apps" : {
+        "org.onosproject.dhcprelay" : {
+            "default": [
+                {
+                    "dhcpServerConnectPoint": "of:0000000000000002/7",
+                    "serverIps": ["10.0.99.3"],
+                    "gatewayIps": ["10.0.1.1"]
+                }
+            ]
+        }
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE03.json b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE03.json
new file mode 100644
index 0000000..87b7b46
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE03.json
@@ -0,0 +1,112 @@
+{
+    "ports" : {
+        "of:0000000000000001/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-untagged": 20
+                }
+            ]
+        },
+        "of:0000000000000001/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-untagged": 20
+                }
+            ]
+        },
+        "of:0000000000000002/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/5" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.1.254/24" ],
+                    "vlan-untagged": 10
+                }
+            ]
+        }
+    },
+    "devices" : {
+        "of:0000000000000001" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 1,
+                "ipv4Loopback" : "192.168.0.1",
+                "routerMac" : "00:00:00:00:00:01",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000002" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 2,
+                "ipv4Loopback" : "192.168.0.2",
+                "routerMac" : "00:00:00:00:00:02",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000101" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 101,
+                "ipv4Loopback" : "192.168.0.101",
+                "routerMac" : "00:00:00:00:01:01",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000102" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 102,
+                "ipv4Loopback" : "192.168.0.102",
+                "routerMac" : "00:00:00:00:01:02",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        }
+    },
+    "apps" : {
+        "org.onosproject.dhcprelay" : {
+            "default": [
+                {
+                    "dhcpServerConnectPoint": "of:0000000000000002/5",
+                    "serverIps": ["10.0.3.253"]
+                }
+            ]
+        }
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE04.json b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE04.json
new file mode 100644
index 0000000..c9b635a
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE04.json
@@ -0,0 +1,121 @@
+{
+    "ports" : {
+        "of:0000000000000001/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-untagged": 20
+                }
+            ]
+        },
+        "of:0000000000000001/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-untagged": 20
+                }
+            ]
+        },
+        "of:0000000000000002/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/5" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.1.254/24" ],
+                    "vlan-untagged": 10
+                }
+            ]
+        },
+        "of:0000000000000002/7" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.1.254/24" ],
+                    "vlan-untagged": 10
+                }
+            ]
+        }
+    },
+    "devices" : {
+        "of:0000000000000001" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 1,
+                "ipv4Loopback" : "192.168.0.1",
+                "routerMac" : "00:00:00:00:00:01",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000002" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 2,
+                "ipv4Loopback" : "192.168.0.2",
+                "routerMac" : "00:00:00:00:00:02",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000101" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 101,
+                "ipv4Loopback" : "192.168.0.101",
+                "routerMac" : "00:00:00:00:01:01",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000102" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 102,
+                "ipv4Loopback" : "192.168.0.102",
+                "routerMac" : "00:00:00:00:01:02",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        }
+    },
+    "apps" : {
+        "org.onosproject.dhcprelay" : {
+            "default": [
+                {
+                    "dhcpServerConnectPoint": "of:0000000000000002/7",
+                    "serverIps": ["10.0.99.3"],
+                    "gatewayIps": ["10.0.1.1"]
+                }
+            ]
+        }
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE05.json b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE05.json
new file mode 100644
index 0000000..7ba4f8b
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE05.json
@@ -0,0 +1,118 @@
+{
+    "ports" : {
+        "of:0000000000000001/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-untagged": 20
+                }
+            ]
+        },
+        "of:0000000000000001/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-untagged": 20
+                }
+            ]
+        },
+        "of:0000000000000002/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/5" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.1.254/24" ],
+                    "vlan-untagged": 10
+                }
+            ]
+        }
+    },
+    "devices" : {
+        "of:0000000000000001" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 1,
+                "ipv4Loopback" : "192.168.0.1",
+                "routerMac" : "00:00:00:00:00:01",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000002" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 2,
+                "ipv4Loopback" : "192.168.0.2",
+                "routerMac" : "00:00:00:00:00:02",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000101" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 101,
+                "ipv4Loopback" : "192.168.0.101",
+                "routerMac" : "00:00:00:00:01:01",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000102" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 102,
+                "ipv4Loopback" : "192.168.0.102",
+                "routerMac" : "00:00:00:00:01:02",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        }
+    },
+    "apps" : {
+        "org.onosproject.dhcprelay" : {
+            "default": [
+                {
+                    "dhcpServerConnectPoint": "of:0000000000000002/5",
+                    "serverIps": ["10.0.3.253"]
+                }
+            ],
+            "indirect": [
+                {
+                    "dhcpServerConnectPoint": "of:0000000000000002/5",
+                    "serverIps": ["10.0.3.252"]
+                }
+            ]
+        }
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE06.json b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE06.json
new file mode 100644
index 0000000..f9a70e0
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE06.json
@@ -0,0 +1,134 @@
+{
+    "ports" : {
+        "of:0000000000000001/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-untagged": 20
+                }
+            ]
+        },
+        "of:0000000000000001/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-untagged": 20
+                }
+            ]
+        },
+        "of:0000000000000002/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/5" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.1.254/24" ],
+                    "vlan-untagged": 10
+                }
+            ]
+        }
+    },
+    "devices" : {
+        "of:0000000000000001" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 1,
+                "ipv4Loopback" : "192.168.0.1",
+                "routerMac" : "00:00:00:00:00:01",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000002" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 2,
+                "ipv4Loopback" : "192.168.0.2",
+                "routerMac" : "00:00:00:00:00:02",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000101" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 101,
+                "ipv4Loopback" : "192.168.0.101",
+                "routerMac" : "00:00:00:00:01:01",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000102" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 102,
+                "ipv4Loopback" : "192.168.0.102",
+                "routerMac" : "00:00:00:00:01:02",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        }
+    },
+    "apps" : {
+        "org.onosproject.dhcprelay" : {
+            "default": [
+                {
+                    "dhcpServerConnectPoint": "of:0000000000000002/5",
+                    "serverIps": ["10.0.3.253"],
+                    "relayAgentIps": {
+                        "of:0000000000000001": {
+                            "ipv4": "10.0.2.254"
+                        },
+                        "of:0000000000000002": {
+                            "ipv4": "10.0.3.254"
+                        }
+                    }
+                }
+            ],
+            "indirect": [
+                {
+                    "dhcpServerConnectPoint": "of:0000000000000002/5",
+                    "serverIps": ["10.0.3.252"],
+                    "relayAgentIps": {
+                        "of:0000000000000001": {
+                            "ipv4": "10.0.2.254"
+                        },
+                        "of:0000000000000002": {
+                            "ipv4": "10.0.3.254"
+                        }
+                    }
+                }
+            ]
+        }
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE11.host b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE11.host
new file mode 100644
index 0000000..7241b17
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE11.host
@@ -0,0 +1,16 @@
+{
+    "onos":
+    {
+        "00:BB:00:00:00:01/None": "2000::201",
+        "00:BB:00:00:00:02/None": "2000::202",
+        "00:BB:00:00:00:03/None": "2000::301",
+        "00:BB:00:00:00:04/None": "2000::302"
+    },
+    "network":
+    {
+        "h1v6": "2000::201",
+        "h2v6": "2000::202",
+        "h3v6": "2000::301",
+        "h4v6": "2000::302"
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE11.json b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE11.json
new file mode 100644
index 0000000..baf3268
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE11.json
@@ -0,0 +1,112 @@
+{
+    "ports" : {
+        "of:0000000000000001/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::2ff/120" ],
+                    "vlan-untagged": 40
+                }
+            ]
+        },
+        "of:0000000000000001/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::2ff/120" ],
+                    "vlan-untagged": 40
+                }
+            ]
+        },
+        "of:0000000000000002/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::3ff/120" ],
+                    "vlan-untagged": 50
+                }
+            ]
+        },
+        "of:0000000000000002/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::3ff/120" ],
+                    "vlan-untagged": 50
+                }
+            ]
+        },
+        "of:0000000000000002/5" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24", "2000::3ff/120" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.1.254/24", "2000::1ff/120" ],
+                    "vlan-untagged": 10
+                }
+            ]
+        }
+    },
+    "devices" : {
+        "of:0000000000000001" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 1,
+                "ipv4Loopback" : "192.168.0.1",
+                "routerMac" : "00:00:00:00:00:01",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000002" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 2,
+                "ipv4Loopback" : "192.168.0.2",
+                "routerMac" : "00:00:00:00:00:02",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000101" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 101,
+                "ipv4Loopback" : "192.168.0.101",
+                "routerMac" : "00:00:00:00:01:01",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000102" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 102,
+                "ipv4Loopback" : "192.168.0.102",
+                "routerMac" : "00:00:00:00:01:02",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        }
+    },
+    "apps" : {
+        "org.onosproject.dhcprelay" : {
+            "default": [
+                {
+                    "dhcpServerConnectPoint": "of:0000000000000002/5",
+                    "serverIps": ["10.0.3.253", "2000::3fd"]
+                }
+            ]
+        }
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE12.host b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE12.host
new file mode 100644
index 0000000..d99eef6
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE12.host
@@ -0,0 +1,16 @@
+{
+    "onos":
+    {
+        "00:AA:00:00:00:01/None": "2000::201",
+        "00:AA:00:00:00:02/None": "2000::202",
+        "00:AA:00:00:00:03/None": "2000::301",
+        "00:AA:00:00:00:04/None": "2000::302"
+    },
+    "network":
+    {
+        "h1v6": "2000::201",
+        "h2v6": "2000::202",
+        "h3v6": "2000::301",
+        "h4v6": "2000::302"
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE12.json b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE12.json
new file mode 100644
index 0000000..028848c
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE12.json
@@ -0,0 +1,121 @@
+{
+    "ports" : {
+        "of:0000000000000001/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::2ff/120" ],
+                    "vlan-untagged": 40
+                }
+            ]
+        },
+        "of:0000000000000001/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::2ff/120" ],
+                    "vlan-untagged": 40
+                }
+            ]
+        },
+        "of:0000000000000002/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::3ff/120" ],
+                    "vlan-untagged": 50
+                }
+            ]
+        },
+        "of:0000000000000002/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::3ff/120" ],
+                    "vlan-untagged": 50
+                }
+            ]
+        },
+        "of:0000000000000002/5" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24", "2000::3ff/120" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.1.254/24", "2000::1ff/120" ],
+                    "vlan-untagged": 10
+                }
+            ]
+        },
+        "of:0000000000000002/7" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.1.254/24", "2000::1ff/120" ],
+                    "vlan-untagged": 10
+                }
+            ]
+        }
+    },
+    "devices" : {
+        "of:0000000000000001" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 1,
+                "ipv4Loopback" : "192.168.0.1",
+                "routerMac" : "00:00:00:00:00:01",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000002" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 2,
+                "ipv4Loopback" : "192.168.0.2",
+                "routerMac" : "00:00:00:00:00:02",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000101" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 101,
+                "ipv4Loopback" : "192.168.0.101",
+                "routerMac" : "00:00:00:00:01:01",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000102" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 102,
+                "ipv4Loopback" : "192.168.0.102",
+                "routerMac" : "00:00:00:00:01:02",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        }
+    },
+    "apps" : {
+        "org.onosproject.dhcprelay" : {
+            "default": [
+                {
+                    "dhcpServerConnectPoint": "of:0000000000000002/7",
+                    "serverIps": ["10.0.99.3", "2000::99fd"],
+                    "gatewayIps": ["10.0.1.1", "2000::101/120"]
+                }
+            ]
+        }
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE13.json b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE13.json
new file mode 100644
index 0000000..baf3268
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE13.json
@@ -0,0 +1,112 @@
+{
+    "ports" : {
+        "of:0000000000000001/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::2ff/120" ],
+                    "vlan-untagged": 40
+                }
+            ]
+        },
+        "of:0000000000000001/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::2ff/120" ],
+                    "vlan-untagged": 40
+                }
+            ]
+        },
+        "of:0000000000000002/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::3ff/120" ],
+                    "vlan-untagged": 50
+                }
+            ]
+        },
+        "of:0000000000000002/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::3ff/120" ],
+                    "vlan-untagged": 50
+                }
+            ]
+        },
+        "of:0000000000000002/5" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24", "2000::3ff/120" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.1.254/24", "2000::1ff/120" ],
+                    "vlan-untagged": 10
+                }
+            ]
+        }
+    },
+    "devices" : {
+        "of:0000000000000001" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 1,
+                "ipv4Loopback" : "192.168.0.1",
+                "routerMac" : "00:00:00:00:00:01",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000002" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 2,
+                "ipv4Loopback" : "192.168.0.2",
+                "routerMac" : "00:00:00:00:00:02",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000101" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 101,
+                "ipv4Loopback" : "192.168.0.101",
+                "routerMac" : "00:00:00:00:01:01",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000102" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 102,
+                "ipv4Loopback" : "192.168.0.102",
+                "routerMac" : "00:00:00:00:01:02",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        }
+    },
+    "apps" : {
+        "org.onosproject.dhcprelay" : {
+            "default": [
+                {
+                    "dhcpServerConnectPoint": "of:0000000000000002/5",
+                    "serverIps": ["10.0.3.253", "2000::3fd"]
+                }
+            ]
+        }
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE14.json b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE14.json
new file mode 100644
index 0000000..028848c
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE14.json
@@ -0,0 +1,121 @@
+{
+    "ports" : {
+        "of:0000000000000001/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::2ff/120" ],
+                    "vlan-untagged": 40
+                }
+            ]
+        },
+        "of:0000000000000001/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::2ff/120" ],
+                    "vlan-untagged": 40
+                }
+            ]
+        },
+        "of:0000000000000002/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::3ff/120" ],
+                    "vlan-untagged": 50
+                }
+            ]
+        },
+        "of:0000000000000002/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::3ff/120" ],
+                    "vlan-untagged": 50
+                }
+            ]
+        },
+        "of:0000000000000002/5" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24", "2000::3ff/120" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.1.254/24", "2000::1ff/120" ],
+                    "vlan-untagged": 10
+                }
+            ]
+        },
+        "of:0000000000000002/7" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.1.254/24", "2000::1ff/120" ],
+                    "vlan-untagged": 10
+                }
+            ]
+        }
+    },
+    "devices" : {
+        "of:0000000000000001" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 1,
+                "ipv4Loopback" : "192.168.0.1",
+                "routerMac" : "00:00:00:00:00:01",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000002" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 2,
+                "ipv4Loopback" : "192.168.0.2",
+                "routerMac" : "00:00:00:00:00:02",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000101" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 101,
+                "ipv4Loopback" : "192.168.0.101",
+                "routerMac" : "00:00:00:00:01:01",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000102" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 102,
+                "ipv4Loopback" : "192.168.0.102",
+                "routerMac" : "00:00:00:00:01:02",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        }
+    },
+    "apps" : {
+        "org.onosproject.dhcprelay" : {
+            "default": [
+                {
+                    "dhcpServerConnectPoint": "of:0000000000000002/7",
+                    "serverIps": ["10.0.99.3", "2000::99fd"],
+                    "gatewayIps": ["10.0.1.1", "2000::101/120"]
+                }
+            ]
+        }
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE15.json b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE15.json
new file mode 100644
index 0000000..caeda8b
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE15.json
@@ -0,0 +1,118 @@
+{
+    "ports" : {
+        "of:0000000000000001/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::2ff/120" ],
+                    "vlan-untagged": 40
+                }
+            ]
+        },
+        "of:0000000000000001/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::2ff/120" ],
+                    "vlan-untagged": 40
+                }
+            ]
+        },
+        "of:0000000000000002/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::3ff/120" ],
+                    "vlan-untagged": 50
+                }
+            ]
+        },
+        "of:0000000000000002/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::3ff/120" ],
+                    "vlan-untagged": 50
+                }
+            ]
+        },
+        "of:0000000000000002/5" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24", "2000::3ff/120" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.1.254/24", "2000::1ff/120" ],
+                    "vlan-untagged": 10
+                }
+            ]
+        }
+    },
+    "devices" : {
+        "of:0000000000000001" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 1,
+                "ipv4Loopback" : "192.168.0.1",
+                "routerMac" : "00:00:00:00:00:01",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000002" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 2,
+                "ipv4Loopback" : "192.168.0.2",
+                "routerMac" : "00:00:00:00:00:02",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000101" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 101,
+                "ipv4Loopback" : "192.168.0.101",
+                "routerMac" : "00:00:00:00:01:01",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000102" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 102,
+                "ipv4Loopback" : "192.168.0.102",
+                "routerMac" : "00:00:00:00:01:02",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        }
+    },
+    "apps" : {
+        "org.onosproject.dhcprelay" : {
+            "default": [
+                {
+                    "dhcpServerConnectPoint": "of:0000000000000002/5",
+                    "serverIps": ["10.0.3.253", "2000::3fd"]
+                }
+            ],
+            "indirect": [
+                {
+                    "dhcpServerConnectPoint": "of:0000000000000002/5",
+                    "serverIps": ["10.0.3.252", "2000::3fc"]
+                }
+            ]
+        }
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE16.json b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE16.json
new file mode 100644
index 0000000..5c3f13a
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE16.json
@@ -0,0 +1,138 @@
+{
+    "ports" : {
+        "of:0000000000000001/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::2ff/120" ],
+                    "vlan-untagged": 40
+                }
+            ]
+        },
+        "of:0000000000000001/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::2ff/120" ],
+                    "vlan-untagged": 40
+                }
+            ]
+        },
+        "of:0000000000000002/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::3ff/120" ],
+                    "vlan-untagged": 50
+                }
+            ]
+        },
+        "of:0000000000000002/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::3ff/120" ],
+                    "vlan-untagged": 50
+                }
+            ]
+        },
+        "of:0000000000000002/5" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24", "2000::3ff/120" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.1.254/24", "2000::1ff/120" ],
+                    "vlan-untagged": 10
+                }
+            ]
+        }
+    },
+    "devices" : {
+        "of:0000000000000001" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 1,
+                "ipv4Loopback" : "192.168.0.1",
+                "routerMac" : "00:00:00:00:00:01",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000002" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 2,
+                "ipv4Loopback" : "192.168.0.2",
+                "routerMac" : "00:00:00:00:00:02",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000101" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 101,
+                "ipv4Loopback" : "192.168.0.101",
+                "routerMac" : "00:00:00:00:01:01",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000102" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 102,
+                "ipv4Loopback" : "192.168.0.102",
+                "routerMac" : "00:00:00:00:01:02",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        }
+    },
+    "apps" : {
+        "org.onosproject.dhcprelay" : {
+            "default": [
+                {
+                    "dhcpServerConnectPoint": "of:0000000000000002/5",
+                    "serverIps": ["10.0.3.253", "2000::3fd"],
+                    "relayAgentIps": {
+                        "of:0000000000000001": {
+                            "ipv4": "10.0.2.254",
+                            "ipv6": "2000::2ff/120"
+                        },
+                        "of:0000000000000002": {
+                            "ipv4": "10.0.3.254",
+                            "ipv6": "2000::3ff/120"
+                        }
+                    }
+                }
+            ],
+            "indirect": [
+                {
+                    "dhcpServerConnectPoint": "of:0000000000000002/5",
+                    "serverIps": ["10.0.3.252", "2000::3fc"],
+                    "relayAgentIps": {
+                        "of:0000000000000001": {
+                            "ipv4": "10.0.2.254",
+                            "ipv6": "2000::2ff/120"
+                        },
+                        "of:0000000000000002": {
+                            "ipv4": "10.0.3.254",
+                            "ipv6": "2000::3ff/120"
+                        }
+                    }
+                }
+            ]
+        }
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE21.host b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE21.host
new file mode 100644
index 0000000..5927f93
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE21.host
@@ -0,0 +1,16 @@
+{
+    "onos":
+    {
+        "00:AA:00:00:00:01/20": "10.0.2.1",
+        "00:AA:00:00:00:02/20": "10.0.2.2",
+        "00:AA:00:00:00:03/30": "10.0.3.1",
+        "00:AA:00:00:00:04/30": "10.0.3.2"
+    },
+    "network":
+    {
+        "h1": "10.0.2.1",
+        "h2": "10.0.2.2",
+        "h3": "10.0.3.1",
+        "h4": "10.0.3.2"
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE21.json b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE21.json
new file mode 100644
index 0000000..85d0091
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE21.json
@@ -0,0 +1,112 @@
+{
+    "ports" : {
+        "of:0000000000000001/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-tagged": [20]
+                }
+            ]
+        },
+        "of:0000000000000001/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-tagged": [20]
+                }
+            ]
+        },
+        "of:0000000000000002/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-tagged": [30]
+                }
+            ]
+        },
+        "of:0000000000000002/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-tagged": [30]
+                }
+            ]
+        },
+        "of:0000000000000002/5" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.1.254/24" ],
+                    "vlan-untagged": 10
+                }
+            ]
+        }
+    },
+    "devices" : {
+        "of:0000000000000001" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 1,
+                "ipv4Loopback" : "192.168.0.1",
+                "routerMac" : "00:00:00:00:00:01",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000002" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 2,
+                "ipv4Loopback" : "192.168.0.2",
+                "routerMac" : "00:00:00:00:00:02",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000101" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 101,
+                "ipv4Loopback" : "192.168.0.101",
+                "routerMac" : "00:00:00:00:01:01",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000102" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 102,
+                "ipv4Loopback" : "192.168.0.102",
+                "routerMac" : "00:00:00:00:01:02",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        }
+    },
+    "apps" : {
+        "org.onosproject.dhcprelay" : {
+            "default": [
+                {
+                    "dhcpServerConnectPoint": "of:0000000000000002/5",
+                    "serverIps": ["10.0.3.253"]
+                }
+            ]
+        }
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE22.host b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE22.host
new file mode 100644
index 0000000..5927f93
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE22.host
@@ -0,0 +1,16 @@
+{
+    "onos":
+    {
+        "00:AA:00:00:00:01/20": "10.0.2.1",
+        "00:AA:00:00:00:02/20": "10.0.2.2",
+        "00:AA:00:00:00:03/30": "10.0.3.1",
+        "00:AA:00:00:00:04/30": "10.0.3.2"
+    },
+    "network":
+    {
+        "h1": "10.0.2.1",
+        "h2": "10.0.2.2",
+        "h3": "10.0.3.1",
+        "h4": "10.0.3.2"
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE22.json b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE22.json
new file mode 100644
index 0000000..a39ad31
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE22.json
@@ -0,0 +1,121 @@
+{
+    "ports" : {
+        "of:0000000000000001/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-tagged": [20]
+                }
+            ]
+        },
+        "of:0000000000000001/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-tagged": [20]
+                }
+            ]
+        },
+        "of:0000000000000002/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-tagged": [30]
+                }
+            ]
+        },
+        "of:0000000000000002/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-tagged": [30]
+                }
+            ]
+        },
+        "of:0000000000000002/5" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.1.254/24" ],
+                    "vlan-untagged": 10
+                }
+            ]
+        },
+        "of:0000000000000002/7" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.1.254/24" ],
+                    "vlan-untagged": 10
+                }
+            ]
+        }
+    },
+    "devices" : {
+        "of:0000000000000001" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 1,
+                "ipv4Loopback" : "192.168.0.1",
+                "routerMac" : "00:00:00:00:00:01",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000002" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 2,
+                "ipv4Loopback" : "192.168.0.2",
+                "routerMac" : "00:00:00:00:00:02",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000101" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 101,
+                "ipv4Loopback" : "192.168.0.101",
+                "routerMac" : "00:00:00:00:01:01",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000102" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 102,
+                "ipv4Loopback" : "192.168.0.102",
+                "routerMac" : "00:00:00:00:01:02",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        }
+    },
+    "apps" : {
+        "org.onosproject.dhcprelay" : {
+            "default": [
+                {
+                    "dhcpServerConnectPoint": "of:0000000000000002/7",
+                    "serverIps": ["10.0.99.3"],
+                    "gatewayIps": ["10.0.1.1"]
+                }
+            ]
+        }
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE31.host b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE31.host
new file mode 100644
index 0000000..411e2f4
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE31.host
@@ -0,0 +1,16 @@
+{
+    "onos":
+    {
+        "00:BB:00:00:00:01/40": "2000::201",
+        "00:BB:00:00:00:02/40": "2000::202",
+        "00:BB:00:00:00:03/50": "2000::301",
+        "00:BB:00:00:00:04/50": "2000::302"
+    },
+    "network":
+    {
+        "h1v6": "2000::201",
+        "h2v6": "2000::202",
+        "h3v6": "2000::301",
+        "h4v6": "2000::302"
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE31.json b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE31.json
new file mode 100644
index 0000000..7e0a83b
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE31.json
@@ -0,0 +1,112 @@
+{
+    "ports" : {
+        "of:0000000000000001/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::2ff/120" ],
+                    "vlan-tagged": [40]
+                }
+            ]
+        },
+        "of:0000000000000001/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::2ff/120" ],
+                    "vlan-tagged": [40]
+                }
+            ]
+        },
+        "of:0000000000000002/3" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::3ff/120" ],
+                    "vlan-tagged": [50]
+                }
+            ]
+        },
+        "of:0000000000000002/4" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::3ff/120" ],
+                    "vlan-tagged": [50]
+                }
+            ]
+        },
+        "of:0000000000000002/5" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24", "2000::3ff/120" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000002/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.1.254/24", "2000::1ff/120" ],
+                    "vlan-untagged": 10
+                }
+            ]
+        }
+    },
+    "devices" : {
+        "of:0000000000000001" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 1,
+                "ipv4Loopback" : "192.168.0.1",
+                "routerMac" : "00:00:00:00:00:01",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000002" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 2,
+                "ipv4Loopback" : "192.168.0.2",
+                "routerMac" : "00:00:00:00:00:02",
+                "isEdgeRouter" : true,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000101" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 101,
+                "ipv4Loopback" : "192.168.0.101",
+                "routerMac" : "00:00:00:00:01:01",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000102" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 102,
+                "ipv4Loopback" : "192.168.0.102",
+                "routerMac" : "00:00:00:00:01:02",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        }
+    },
+    "apps" : {
+        "org.onosproject.dhcprelay" : {
+            "default": [
+                {
+                    "dhcpServerConnectPoint": "of:0000000000000002/5",
+                    "serverIps": ["10.0.3.253", "2000::3fd"]
+                }
+            ]
+        }
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE41.host b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE41.host
new file mode 100644
index 0000000..9428e54
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE41.host
@@ -0,0 +1,16 @@
+{
+    "onos":
+    {
+        "00:AA:00:00:00:01/None": "10.0.2.1",
+        "00:AA:00:00:00:02/None": "10.0.2.2",
+        "00:AA:00:00:00:03/None": "10.0.3.1",
+        "00:AA:00:00:00:04/None": "10.0.3.2"
+    },
+    "network":
+    {
+        "h1": "10.0.2.1",
+        "h2": "10.0.2.2",
+        "h3": "10.0.3.1",
+        "h4": "10.0.3.2"
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE41.json b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE41.json
new file mode 100644
index 0000000..f950f0c
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE41.json
@@ -0,0 +1,168 @@
+{
+    "ports" : {
+        "of:0000000000000001/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-untagged": 20
+                }
+            ]
+        },
+        "of:0000000000000001/7" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-untagged": 20
+                }
+            ]
+        },
+        "of:0000000000000002/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-untagged": 20
+                }
+            ]
+        },
+        "of:0000000000000002/7" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-untagged": 20
+                }
+            ]
+        },
+        "of:0000000000000003/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000003/7" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000003/8" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000004/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000004/7" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        }
+    },
+    "devices" : {
+        "of:0000000000000001" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 1,
+                "ipv4Loopback" : "192.168.0.1",
+                "routerMac" : "00:00:00:00:00:01",
+                "isEdgeRouter" : true,
+                "pairDeviceId" : "of:0000000000000002",
+                "pairLocalPort" : 5,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000002" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 1,
+                "ipv4Loopback" : "192.168.0.2",
+                "routerMac" : "00:00:00:00:00:01",
+                "isEdgeRouter" : true,
+                "pairDeviceId" : "of:0000000000000001",
+                "pairLocalPort" : 5,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000003" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 2,
+                "ipv4Loopback" : "192.168.0.3",
+                "routerMac" : "00:00:00:00:00:02",
+                "isEdgeRouter" : true,
+                "pairDeviceId" : "of:0000000000000004",
+                "pairLocalPort" : 5,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000004" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 2,
+                "ipv4Loopback" : "192.168.0.4",
+                "routerMac" : "00:00:00:00:00:02",
+                "isEdgeRouter" : true,
+                "pairDeviceId" : "of:0000000000000003",
+                "pairLocalPort" : 5,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000101" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 101,
+                "ipv4Loopback" : "192.168.0.101",
+                "routerMac" : "00:00:00:00:01:01",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000102" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 102,
+                "ipv4Loopback" : "192.168.0.102",
+                "routerMac" : "00:00:00:00:01:02",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        }
+    },
+    "apps" : {
+        "org.onosproject.dhcprelay" : {
+            "default": [
+                {
+                    "dhcpServerConnectPoint": "of:0000000000000003/8",
+                    "serverIps": ["10.0.3.253"]
+                }
+            ]
+        }
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE51.host b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE51.host
new file mode 100644
index 0000000..7241b17
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE51.host
@@ -0,0 +1,16 @@
+{
+    "onos":
+    {
+        "00:BB:00:00:00:01/None": "2000::201",
+        "00:BB:00:00:00:02/None": "2000::202",
+        "00:BB:00:00:00:03/None": "2000::301",
+        "00:BB:00:00:00:04/None": "2000::302"
+    },
+    "network":
+    {
+        "h1v6": "2000::201",
+        "h2v6": "2000::202",
+        "h3v6": "2000::301",
+        "h4v6": "2000::302"
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE51.json b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE51.json
new file mode 100644
index 0000000..0922c53
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE51.json
@@ -0,0 +1,168 @@
+{
+    "ports" : {
+        "of:0000000000000001/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::2ff/120" ],
+                    "vlan-untagged": 40
+                }
+            ]
+        },
+        "of:0000000000000001/7" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::2ff/120" ],
+                    "vlan-untagged": 40
+                }
+            ]
+        },
+        "of:0000000000000002/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::2ff/120" ],
+                    "vlan-untagged": 40
+                }
+            ]
+        },
+        "of:0000000000000002/7" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::2ff/120" ],
+                    "vlan-untagged": 40
+                }
+            ]
+        },
+        "of:0000000000000003/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::3ff/120" ],
+                    "vlan-untagged": 50
+                }
+            ]
+        },
+        "of:0000000000000003/7" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::3ff/120" ],
+                    "vlan-untagged": 50
+                }
+            ]
+        },
+        "of:0000000000000003/8" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24", "2000::3ff/120" ],
+                    "vlan-untagged": 50
+                }
+            ]
+        },
+        "of:0000000000000004/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::3ff/120" ],
+                    "vlan-untagged": 50
+                }
+            ]
+        },
+        "of:0000000000000004/7" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::3ff/120" ],
+                    "vlan-untagged": 50
+                }
+            ]
+        }
+    },
+    "devices" : {
+        "of:0000000000000001" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 1,
+                "ipv4Loopback" : "192.168.0.1",
+                "routerMac" : "00:00:00:00:00:01",
+                "isEdgeRouter" : true,
+                "pairDeviceId" : "of:0000000000000002",
+                "pairLocalPort" : 5,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000002" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 1,
+                "ipv4Loopback" : "192.168.0.2",
+                "routerMac" : "00:00:00:00:00:01",
+                "isEdgeRouter" : true,
+                "pairDeviceId" : "of:0000000000000001",
+                "pairLocalPort" : 5,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000003" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 2,
+                "ipv4Loopback" : "192.168.0.3",
+                "routerMac" : "00:00:00:00:00:02",
+                "isEdgeRouter" : true,
+                "pairDeviceId" : "of:0000000000000004",
+                "pairLocalPort" : 5,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000004" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 2,
+                "ipv4Loopback" : "192.168.0.4",
+                "routerMac" : "00:00:00:00:00:02",
+                "isEdgeRouter" : true,
+                "pairDeviceId" : "of:0000000000000003",
+                "pairLocalPort" : 5,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000101" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 101,
+                "ipv4Loopback" : "192.168.0.101",
+                "routerMac" : "00:00:00:00:01:01",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000102" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 102,
+                "ipv4Loopback" : "192.168.0.102",
+                "routerMac" : "00:00:00:00:01:02",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        }
+    },
+    "apps" : {
+        "org.onosproject.dhcprelay" : {
+            "default": [
+                {
+                    "dhcpServerConnectPoint": "of:0000000000000003/8",
+                    "serverIps": ["10.0.3.253", "2000::3fd"]
+                }
+            ]
+        }
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE61.host b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE61.host
new file mode 100644
index 0000000..5927f93
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE61.host
@@ -0,0 +1,16 @@
+{
+    "onos":
+    {
+        "00:AA:00:00:00:01/20": "10.0.2.1",
+        "00:AA:00:00:00:02/20": "10.0.2.2",
+        "00:AA:00:00:00:03/30": "10.0.3.1",
+        "00:AA:00:00:00:04/30": "10.0.3.2"
+    },
+    "network":
+    {
+        "h1": "10.0.2.1",
+        "h2": "10.0.2.2",
+        "h3": "10.0.3.1",
+        "h4": "10.0.3.2"
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE61.json b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE61.json
new file mode 100644
index 0000000..83cb578
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE61.json
@@ -0,0 +1,168 @@
+{
+    "ports" : {
+        "of:0000000000000001/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-tagged": [20]
+                }
+            ]
+        },
+        "of:0000000000000001/7" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-tagged": [20]
+                }
+            ]
+        },
+        "of:0000000000000002/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-tagged": [20]
+                }
+            ]
+        },
+        "of:0000000000000002/7" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.2.254/24" ],
+                    "vlan-tagged": [20]
+                }
+            ]
+        },
+        "of:0000000000000003/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-tagged": [30]
+                }
+            ]
+        },
+        "of:0000000000000003/7" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-tagged": [30]
+                }
+            ]
+        },
+        "of:0000000000000003/8" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-untagged": 30
+                }
+            ]
+        },
+        "of:0000000000000004/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-tagged": [30]
+                }
+            ]
+        },
+        "of:0000000000000004/7" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24" ],
+                    "vlan-tagged": [30]
+                }
+            ]
+        }
+    },
+    "devices" : {
+        "of:0000000000000001" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 1,
+                "ipv4Loopback" : "192.168.0.1",
+                "routerMac" : "00:00:00:00:00:01",
+                "isEdgeRouter" : true,
+                "pairDeviceId" : "of:0000000000000002",
+                "pairLocalPort" : 5,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000002" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 1,
+                "ipv4Loopback" : "192.168.0.2",
+                "routerMac" : "00:00:00:00:00:01",
+                "isEdgeRouter" : true,
+                "pairDeviceId" : "of:0000000000000001",
+                "pairLocalPort" : 5,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000003" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 2,
+                "ipv4Loopback" : "192.168.0.3",
+                "routerMac" : "00:00:00:00:00:02",
+                "isEdgeRouter" : true,
+                "pairDeviceId" : "of:0000000000000004",
+                "pairLocalPort" : 5,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000004" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 2,
+                "ipv4Loopback" : "192.168.0.4",
+                "routerMac" : "00:00:00:00:00:02",
+                "isEdgeRouter" : true,
+                "pairDeviceId" : "of:0000000000000003",
+                "pairLocalPort" : 5,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000101" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 101,
+                "ipv4Loopback" : "192.168.0.101",
+                "routerMac" : "00:00:00:00:01:01",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000102" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 102,
+                "ipv4Loopback" : "192.168.0.102",
+                "routerMac" : "00:00:00:00:01:02",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        }
+    },
+    "apps" : {
+        "org.onosproject.dhcprelay" : {
+            "default": [
+                {
+                    "dhcpServerConnectPoint": "of:0000000000000003/8",
+                    "serverIps": ["10.0.3.253"]
+                }
+            ]
+        }
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE71.host b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE71.host
new file mode 100644
index 0000000..411e2f4
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE71.host
@@ -0,0 +1,16 @@
+{
+    "onos":
+    {
+        "00:BB:00:00:00:01/40": "2000::201",
+        "00:BB:00:00:00:02/40": "2000::202",
+        "00:BB:00:00:00:03/50": "2000::301",
+        "00:BB:00:00:00:04/50": "2000::302"
+    },
+    "network":
+    {
+        "h1v6": "2000::201",
+        "h2v6": "2000::202",
+        "h3v6": "2000::301",
+        "h4v6": "2000::302"
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE71.json b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE71.json
new file mode 100644
index 0000000..9737d12
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRDhcprelay/dependencies/json/CASE71.json
@@ -0,0 +1,168 @@
+{
+    "ports" : {
+        "of:0000000000000001/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::2ff/120" ],
+                    "vlan-tagged": [40]
+                }
+            ]
+        },
+        "of:0000000000000001/7" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::2ff/120" ],
+                    "vlan-tagged": [40]
+                }
+            ]
+        },
+        "of:0000000000000002/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::2ff/120" ],
+                    "vlan-tagged": [40]
+                }
+            ]
+        },
+        "of:0000000000000002/7" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::2ff/120" ],
+                    "vlan-tagged": [40]
+                }
+            ]
+        },
+        "of:0000000000000003/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::3ff/120" ],
+                    "vlan-tagged": [50]
+                }
+            ]
+        },
+        "of:0000000000000003/7" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::3ff/120" ],
+                    "vlan-tagged": [50]
+                }
+            ]
+        },
+        "of:0000000000000003/8" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "10.0.3.254/24", "2000::3ff/120" ],
+                    "vlan-untagged": 50
+                }
+            ]
+        },
+        "of:0000000000000004/6" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::3ff/120" ],
+                    "vlan-tagged": [50]
+                }
+            ]
+        },
+        "of:0000000000000004/7" : {
+            "interfaces" : [
+                {
+                    "ips" : [ "2000::3ff/120" ],
+                    "vlan-tagged": [50]
+                }
+            ]
+        }
+    },
+    "devices" : {
+        "of:0000000000000001" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 1,
+                "ipv4Loopback" : "192.168.0.1",
+                "routerMac" : "00:00:00:00:00:01",
+                "isEdgeRouter" : true,
+                "pairDeviceId" : "of:0000000000000002",
+                "pairLocalPort" : 5,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000002" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 1,
+                "ipv4Loopback" : "192.168.0.2",
+                "routerMac" : "00:00:00:00:00:01",
+                "isEdgeRouter" : true,
+                "pairDeviceId" : "of:0000000000000001",
+                "pairLocalPort" : 5,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000003" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 2,
+                "ipv4Loopback" : "192.168.0.3",
+                "routerMac" : "00:00:00:00:00:02",
+                "isEdgeRouter" : true,
+                "pairDeviceId" : "of:0000000000000004",
+                "pairLocalPort" : 5,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000004" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 2,
+                "ipv4Loopback" : "192.168.0.4",
+                "routerMac" : "00:00:00:00:00:02",
+                "isEdgeRouter" : true,
+                "pairDeviceId" : "of:0000000000000003",
+                "pairLocalPort" : 5,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000101" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 101,
+                "ipv4Loopback" : "192.168.0.101",
+                "routerMac" : "00:00:00:00:01:01",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        },
+        "of:0000000000000102" : {
+            "segmentrouting" : {
+                "ipv4NodeSid" : 102,
+                "ipv4Loopback" : "192.168.0.102",
+                "routerMac" : "00:00:00:00:01:02",
+                "isEdgeRouter" : false,
+                "adjacencySids" : []
+            },
+            "basic" : {
+                "driver" : "ofdpa-ovs"
+            }
+        }
+    },
+    "apps" : {
+        "org.onosproject.dhcprelay" : {
+            "default": [
+                {
+                    "dhcpServerConnectPoint": "of:0000000000000003/8",
+                    "serverIps": ["10.0.3.253", "2000::3fd"]
+                }
+            ]
+        }
+    }
+}
diff --git a/TestON/tests/USECASE/SegmentRouting/dependencies/Testcaselib.py b/TestON/tests/USECASE/SegmentRouting/dependencies/Testcaselib.py
index b032efc..dd33993 100644
--- a/TestON/tests/USECASE/SegmentRouting/dependencies/Testcaselib.py
+++ b/TestON/tests/USECASE/SegmentRouting/dependencies/Testcaselib.py
@@ -108,10 +108,15 @@
                                  onpass="ONOS summary command succeded",
                                  onfail="ONOS summary command failed" )
 
-        with open( "%s/json/%s.json" % (main.configPath, main.cfgName)) as cfg:
-            main.Cluster.active( 0 ).REST.setNetCfg(json.load(cfg))
-        with open("%s/json/%s.chart" % (main.configPath, main.cfgName)) as chart:
-            main.pingChart = json.load(chart)
+        with open( "%s/json/%s.json" % (
+                main.configPath, main.cfgName ) ) as cfg:
+            main.Cluster.active( 0 ).REST.setNetCfg( json.load( cfg ) )
+        try:
+            with open( "%s/json/%s.chart" % (
+                    main.configPath, main.cfgName ) ) as chart:
+                main.pingChart = json.load( chart )
+        except IOError:
+            main.log.warn( "No chart file found." )
         if not ready:
             main.log.error( "ONOS startup failed!" )
             main.cleanAndExit()
@@ -648,3 +653,39 @@
         main.Cluster.active( 0 ).REST.removeNetCfg( subjectClass="apps",
                                                     subjectKey="org.onosproject.segmentrouting",
                                                     configKey="xconnect" )
+
+    @staticmethod
+    def verifyNetworkHostIp( main, attempts=10, sleep=10 ):
+        """
+        Verifies IP address assignment from the hosts
+        """
+        main.step( "Verify IP address assignment from hosts" )
+        ipResult = main.TRUE
+        for hostName, ip in main.expectedHosts[ "network" ].items():
+            ipResult = ipResult and utilities.retry( main.Network.verifyHostIp,
+                                                     main.FALSE,
+                                                     kwargs={ 'hostList': [ hostName ],
+                                                              'prefix': ip },
+                                                     attempts=attempts,
+                                                     sleep=sleep )
+        utilities.assert_equals( expect=main.TRUE, actual=ipResult,
+                                 onpass="Verify network host IP succeded",
+                                 onfail="Verify network host IP failed" )
+
+    @staticmethod
+    def verifyOnosHostIp( main, attempts=10, sleep=10 ):
+        """
+        Verifies host IP address assignment from ONOS
+        """
+        main.step( "Verify host IP address assignment in ONOS" )
+        ipResult = main.TRUE
+        for hostName, ip in main.expectedHosts[ "onos" ].items():
+            ipResult = ipResult and utilities.retry( main.Cluster.active( 0 ).verifyHostIp,
+                                                     main.FALSE,
+                                                     kwargs={ 'hostList': [ hostName ],
+                                                              'prefix': ip },
+                                                     attempts=attempts,
+                                                     sleep=sleep )
+        utilities.assert_equals( expect=main.TRUE, actual=ipResult,
+                                 onpass="Verify ONOS host IP succeded",
+                                 onfail="Verify ONOS host IP failed" )
diff --git a/TestON/tests/USECASE/SegmentRouting/dependencies/trellis_fabric.py b/TestON/tests/USECASE/SegmentRouting/dependencies/trellis_fabric.py
index b0b26a1..d1058ab 100644
--- a/TestON/tests/USECASE/SegmentRouting/dependencies/trellis_fabric.py
+++ b/TestON/tests/USECASE/SegmentRouting/dependencies/trellis_fabric.py
@@ -4,7 +4,7 @@
 from optparse import OptionParser
 
 from ipaddress import ip_network
-from mininet.node import RemoteController, OVSBridge, Host
+from mininet.node import RemoteController, OVSBridge, Host, OVSSwitch
 from mininet.link import TCLink
 from mininet.log import setLogLevel
 from mininet.net import Mininet
@@ -13,7 +13,8 @@
 from mininet.cli import CLI
 
 from routinglib import BgpRouter
-from trellislib import TrellisHost
+from trellislib import TrellisHost, DhcpRelay
+from functools import partial
 
 # Parse command line options and dump results
 def parseOptions():
@@ -34,6 +35,14 @@
     parser.add_option( '--vlan', dest='vlan', type='str', default='',
                        help='list of vlan id for hosts, separated by comma(,).'
                             'Empty or id with 0 will be unconfigured.' )
+    parser.add_option( '--dhcp-client', action="store_true", dest='dhcpClient', default=False,
+                       help='Set hosts as DhcpClient if True' )
+    parser.add_option( '--dhcp-relay', action="store_true", dest='dhcpRelay', default=False,
+                       help='Connect half of the hosts to switch indirectly (via DHCP relay) if True' )
+    parser.add_option( '--multiple-dhcp-server', action="store_true", dest='multipleServer', default=False,
+                       help='Use another DHCP server for indirectly connected DHCP clients if True' )
+    parser.add_option( '--remote-dhcp-server', action="store_true", dest='remoteServer', default=False,
+                       help='Connect DHCP server indirectly (via gateway) if True' )
     ( options, args ) = parser.parse_args()
     return options, args
 
@@ -88,7 +97,10 @@
 
 # TODO: Implement IPv6 support
 class DualHomedLeafSpineFabric (Topo) :
-    def __init__(self, spine = 2, leaf = 4, fanout = 2, vlan_id = [], **opts):
+    def __init__(self, spine = 2, leaf = 2, fanout = 2, vlan_id = [], ipv6 = False,
+                 dhcp_client = False, dhcp_relay = False,
+                 multiple_server = False, remote_server = False, **opts):
+        # TODO: add support to dhcp_relay, multiple_server and remote_server
         Topo.__init__(self, **opts)
         spines = dict()
         leafs = dict()
@@ -121,39 +133,27 @@
             dual_ls = ls / 2
             # Add hosts
             for f in range(fanout):
-                if vlan_id[ dual_ls * fanout + f] != 0:
-                    host = self.addHost(
-                        name='h%s' % ( dual_ls * fanout + f + 1),
-                        cls=TrellisHost,
-                        ips=['10.0.%d.%d/%d' % ( dual_ls + 2, f + 1, IP4_SUBNET_CLASS)],
-                        gateway='10.0.%d.254' % ( dual_ls + 2),
-                        mac='00:aa:00:00:00:%02x' % (dual_ls * fanout + f + 1),
-                        vlan=vlan_id[ dual_ls*fanout + f ],
-                        dualHomed=True
-                    )
+                name = 'h%s%s' % (dual_ls * fanout + f + 1, "v6" if ipv6 else "")
+                if ipv6:
+                    ips = ['2000::%d0%d/%d' % (dual_ls+2, f+1, IP6_SUBNET_CLASS)]
+                    gateway = '2000::%dff' % (dual_ls+2)
+                    mac = '00:bb:00:00:00:%02x' % (dual_ls * fanout + f + 1)
                 else:
-                    host = self.addHost(
-                        name='h%s' % (dual_ls * fanout + f + 1),
-                        cls=TrellisHost,
-                        ips=['10.0.%d.%d/%d' % (dual_ls+2, f+1, IP4_SUBNET_CLASS)],
-                        gateway='10.0.%d.254' % (dual_ls+2),
-                        mac='00:aa:00:00:00:%02x' % (dual_ls * fanout + f + 1),
-                        dualHomed=True
-                    )
+                    ips = ['10.0.%d.%d/%d' % (dual_ls+2, f+1, IP4_SUBNET_CLASS)]
+                    gateway = '10.0.%d.254' % (dual_ls+2)
+                    mac = '00:aa:00:00:00:%02x' % (dual_ls * fanout + f + 1)
+                host = self.addHost( name=name, cls=TrellisHost, ips=ips, gateway=gateway, mac=mac,
+                                     vlan=vlan_id[ dual_ls*fanout + f ] if vlan_id[dual_ls * fanout + f] != 0 else None,
+                                     dhcpClient=dhcp_client, ipv6=ipv6, dualHomed=True )
                 self.addLink(host, leafs[ls], **linkopts)
                 self.addLink(host, leafs[ls-1], **linkopts)
 
         last_ls = leafs[leaf-2]
         last_paired_ls = leafs[leaf-1]
         # Create common components
-        # DHCP server
-        dhcp = self.addHost('dhcp', cls=TrellisHost, mac='00:99:00:00:00:01', ips=['10.0.3.253/24'],
-                            gateway='10.0.3.254', dhcpServer=True)
-
         # Control plane switch (for DHCP servers)
         cs1 = self.addSwitch('cs1', cls=OVSBridge)
         self.addLink(cs1, last_ls)
-        self.addLink(dhcp, cs1)
 
         # Control plane switch (for quagga fpm)
         cs0 = self.addSwitch('cs0', cls=OVSBridge)
@@ -169,8 +169,8 @@
                  'bgp1-eth1': {'ipAddrs': ['172.16.0.2/12']}}
         bgp1 = self.addHost('bgp1', cls=BgpRouter,
                             interfaces=intfs,
-                            quaggaConfFile='conf/bgpdbgp1.conf',
-                            zebraConfFile='conf/zebradbgp1.conf')
+                            quaggaConfFile='./bgpdbgp1.conf',
+                            zebraConfFile='./zebradbgp1.conf')
         self.addLink(bgp1, last_ls)
         self.addLink(bgp1, cs0)
 
@@ -180,8 +180,8 @@
                  'bgp2-eth1': {'ipAddrs': ['172.16.0.4/12']}}
         bgp2 = self.addHost('bgp2', cls=BgpRouter,
                             interfaces=intfs,
-                            quaggaConfFile='conf/bgpdbgp2.conf',
-                            zebraConfFile='conf/zebradbgp2.conf')
+                            quaggaConfFile='./bgpdbgp2.conf',
+                            zebraConfFile='./zebradbgp2.conf')
         self.addLink(bgp2, last_paired_ls)
         self.addLink(bgp2, cs0)
 
@@ -191,7 +191,7 @@
                  'r1-eth2': {'ipAddrs': ['10.0.99.1/16']}}
         r1 = self.addHost('r1', cls=BgpRouter,
                             interfaces=intfs,
-                            quaggaConfFile='conf/bgpdr1.conf')
+                            quaggaConfFile='./bgpdr1.conf')
         self.addLink(r1, last_ls)
         self.addLink(r1, last_paired_ls)
 
@@ -205,7 +205,7 @@
                  'r2-eth2': {'ipAddrs': ['10.0.99.1/16']}}
         r2 = self.addHost('r2', cls=BgpRouter,
                             interfaces=intfs,
-                            quaggaConfFile='conf/bgpdr2.conf')
+                            quaggaConfFile='./bgpdr2.conf')
         self.addLink(r2, last_ls)
         self.addLink(r2, last_paired_ls)
 
@@ -213,8 +213,23 @@
         rh2 = self.addHost('rh2', cls=TrellisHost, ips=['10.0.99.2/24'], gateway='10.0.99.1')
         self.addLink(r2, rh2)
 
+        # DHCP server
+        if ipv6:
+            dhcp = self.addHost('dhcp', cls=TrellisHost, mac='00:99:00:00:00:01',
+                                ips=['2000::3fd/120'], gateway='2000::3ff',
+                                dhcpServer=True, ipv6=True)
+            self.addLink(dhcp, cs1)
+        else:
+            dhcp = self.addHost('dhcp', cls=TrellisHost, mac='00:99:00:00:00:01',
+                                ips=['10.0.3.253/24'], gateway='10.0.3.254',
+                                dhcpServer=True)
+            self.addLink(dhcp, cs1)
+
+
 class LeafSpineFabric (Topo) :
-    def __init__(self, spine = 2, leaf = 2, fanout = 2, vlan_id = [], **opts):
+    def __init__(self, spine = 2, leaf = 2, fanout = 2, vlan_id = [], ipv6 = False,
+                 dhcp_client = False, dhcp_relay = False,
+                 multiple_server = False, remote_server = False, **opts):
         Topo.__init__(self, **opts)
         spines = dict()
         leafs = dict()
@@ -240,35 +255,56 @@
 
             # Add hosts
             for f in range(fanout):
-                if vlan_id[ls * fanout + f] != 0:
-                    host = self.addHost(
-                        name='h%s' % (ls * fanout + f + 1),
-                        cls=TrellisHost,
-                        ips=['10.0.%d.%d/%d' % (ls+2, f+1, IP4_SUBNET_CLASS)],
-                        gateway='10.0.%d.254' % (ls+2),
-                        mac='00:aa:00:00:00:%02x' % (ls * fanout + f + 1),
-                        vlan=vlan_id[ ls*fanout + f ]
-                    )
+                name = 'h%s%s' % (ls * fanout + f + 1, "v6" if ipv6 else "")
+                if ipv6:
+                    ips = ['2000::%d0%d/%d' % (ls+2, f+1, IP6_SUBNET_CLASS)]
+                    gateway = '2000::%dff' % (ls+2)
+                    mac = '00:bb:00:00:00:%02x' % (ls * fanout + f + 1)
                 else:
-                    host = self.addHost(
-                        name='h%s' % (ls * fanout + f + 1),
-                        cls=TrellisHost,
-                        ips=['10.0.%d.%d/%d' % (ls+2, f+1, IP4_SUBNET_CLASS)],
-                        gateway='10.0.%d.254' % (ls+2),
-                        mac='00:aa:00:00:00:%02x' % (ls * fanout + f + 1)
-                    )
-                self.addLink(host, leafs[ls], **linkopts)
+                    ips = ['10.0.%d.%d/%d' % (ls+2, f+1, IP4_SUBNET_CLASS)]
+                    gateway = '10.0.%d.254' % (ls+2)
+                    mac = '00:aa:00:00:00:%02x' % (ls * fanout + f + 1)
+                host = self.addHost( name=name, cls=TrellisHost, ips=ips, gateway=gateway, mac=mac,
+                                     vlan=vlan_id[ ls*fanout + f ] if vlan_id[ls * fanout + f] != 0 else None,
+                                     dhcpClient=dhcp_client, ipv6=ipv6 )
+                if dhcp_relay and f % 2:
+                    relayIndex = ls * fanout + f + 1
+                    if ipv6:
+                        intfs = {
+                            'relay%s-eth0' % relayIndex: { 'ipAddrs': ['2000::%dff/%d' % (leaf + ls + 2, IP6_SUBNET_CLASS)] },
+                            'relay%s-eth1' % relayIndex: { 'ipAddrs': ['2000::%d5%d/%d' % (ls + 2, f, IP6_SUBNET_CLASS)] }
+                        }
+                        if remote_server:
+                            serverIp = '2000::99fd'
+                        elif multiple_server:
+                            serverIp = '2000::3fc'
+                        else:
+                            serverIp = '2000::3fd'
+                        dhcpRelay = self.addHost(name='relay%s' % relayIndex, cls=DhcpRelay, serverIp=serverIp,
+                                                 gateway='2000::%dff' % (ls+2), interfaces=intfs)
+                    else:
+                        intfs = {
+                            'relay%s-eth0' % relayIndex: { 'ipAddrs': ['10.0.%d.254/%d' % (leaf + ls + 2, IP4_SUBNET_CLASS)] },
+                            'relay%s-eth1' % relayIndex: { 'ipAddrs': ['10.0.%d.%d/%d' % (ls + 2, f + 99, IP4_SUBNET_CLASS)] }
+                        }
+                        if remote_server:
+                            serverIp = '10.0.99.3'
+                        elif multiple_server:
+                            serverIp = '10.0.3.252'
+                        else:
+                            serverIp = '10.0.3.253'
+                        dhcpRelay = self.addHost(name='relay%s' % relayIndex, cls=DhcpRelay, serverIp=serverIp,
+                                                 gateway='10.0.%d.254' % (ls+2), interfaces=intfs)
+                    self.addLink(host, dhcpRelay, **linkopts)
+                    self.addLink(dhcpRelay, leafs[ls], **linkopts)
+                else:
+                    self.addLink(host, leafs[ls], **linkopts)
 
         last_ls = leafs[leaf-1]
         # Create common components
-        # DHCP server
-        dhcp = self.addHost('dhcp', cls=TrellisHost, mac='00:99:00:00:00:01', ips=['10.0.3.253/24'],
-                            gateway='10.0.3.254', dhcpServer=True)
-
         # Control plane switch (for DHCP servers)
         cs1 = self.addSwitch('cs1', cls=OVSBridge)
         self.addLink(cs1, last_ls)
-        self.addLink(dhcp, cs1)
 
         # Control plane switch (for quagga fpm)
         cs0 = self.addSwitch('cs0', cls=OVSBridge)
@@ -284,8 +320,8 @@
                  'bgp1-eth1': {'ipAddrs': ['172.16.0.2/12']}}
         bgp1 = self.addHost('bgp1', cls=BgpRouter,
                             interfaces=intfs,
-                            quaggaConfFile='conf/bgpdbgp1.conf',
-                            zebraConfFile='conf/zebradbgp1.conf')
+                            quaggaConfFile='./bgpdbgp1.conf',
+                            zebraConfFile='./zebradbgp1.conf')
         self.addLink(bgp1, last_ls)
         self.addLink(bgp1, cs0)
 
@@ -295,18 +331,59 @@
                  'r1-eth2': {'ipAddrs': ['2000::9901/120']}}
         r1 = self.addHost('r1', cls=BgpRouter,
                             interfaces=intfs,
-                            quaggaConfFile='conf/bgpdr1.conf')
+                            quaggaConfFile='./bgpdr1.conf')
         self.addLink(r1, last_ls)
 
+        # External switch behind r1
+        rs0 = self.addSwitch('rs0', cls=OVSBridge)
+        self.addLink(r1, rs0)
+
         # External IPv4 Host behind r1
         rh1 = self.addHost('rh1', cls=TrellisHost, ips=['10.0.99.2/24'], gateway='10.0.99.1')
         self.addLink(r1, rh1)
 
+        # External IPv6 Host behind r1
+        rh1v6 = self.addHost('rh1v6', cls=TrellisHost, ips=['2000::9902/120'], gateway='2000::9901')
+        self.addLink(r1, rh1v6)
+
+        # DHCP server
+        if ipv6:
+            if remote_server:
+                dhcp = self.addHost('dhcp', cls=TrellisHost, mac='00:99:00:00:00:01',
+                                    ips=['2000::99fd/120'], gateway='2000::9901',
+                                    dhcpServer=True, ipv6=True)
+                self.addLink(rs0, dhcp)
+            else:
+                dhcp = self.addHost('dhcp', cls=TrellisHost, mac='00:99:00:00:00:01',
+                                    ips=['2000::3fd/120'], gateway='2000::3ff',
+                                    dhcpServer=True, ipv6=True)
+                self.addLink(dhcp, cs1)
+                if multiple_server:
+                    dhcp2 = self.addHost('dhcp2', cls=TrellisHost, mac='00:99:00:00:00:02',
+                                         ips=['2000::3fc/120'], gateway='2000::3ff',
+                                         dhcpServer=True, ipv6=True)
+                    self.addLink(dhcp2, cs1)
+        else:
+            if remote_server:
+                dhcp = self.addHost('dhcp', cls=TrellisHost, mac='00:99:00:00:00:01',
+                                    ips=['10.0.99.3/24'], gateway='10.0.99.1',
+                                    dhcpServer=True)
+                self.addLink(rs0, dhcp)
+            else:
+                dhcp = self.addHost('dhcp', cls=TrellisHost, mac='00:99:00:00:00:01',
+                                    ips=['10.0.3.253/24'], gateway='10.0.3.254',
+                                    dhcpServer=True)
+                self.addLink(dhcp, cs1)
+                if multiple_server:
+                    dhcp2 = self.addHost('dhcp2', cls=TrellisHost, mac='00:99:00:00:00:02',
+                                         ips=['10.0.3.252/24'], gateway='10.0.3.254',
+                                         dhcpServer=True)
+                    self.addLink(dhcp2, cs1)
+
 def config( opts ):
     spine = opts.spine
     leaf = opts.leaf
     fanout = opts.fanout
-    ipv6 = opts.ipv6
     dualhomed = opts.dualhomed
     if opts.vlan == '':
         vlan = [0] * (((leaf / 2) if dualhomed else leaf) * fanout)
@@ -322,18 +399,23 @@
         print "Invalid vlan configuration is given."
         return
 
-    if not ipv6:
-        if dualhomed:
-            if leaf % 2 == 1 or leaf == 0:
-                print "Even number of leaf switches (at least two) are needed to build dual-homed topology."
-                return
-            else:
-                topo = DualHomedLeafSpineFabric(spine=spine, leaf=leaf, fanout=fanout, vlan_id=vlan)
+    if dualhomed:
+        if leaf % 2 == 1 or leaf == 0:
+            print "Even number of leaf switches (at least two) are needed to build dual-homed topology."
+            return
         else:
-            topo = LeafSpineFabric(spine=spine, leaf=leaf, fanout=fanout, vlan_id=vlan)
+            topo = DualHomedLeafSpineFabric(spine=spine, leaf=leaf, fanout=fanout, vlan_id=vlan,
+                                            ipv6=opts.ipv6,
+                                            dhcp_client=opts.dhcpClient,
+                                            dhcp_relay=opts.dhcpRelay,
+                                            multiple_server=opts.multipleServer,
+                                            remote_server=opts.remoteServer)
     else:
-        print "IPv6 hosts are not supported yet."
-        return
+        topo = LeafSpineFabric(spine=spine, leaf=leaf, fanout=fanout, vlan_id=vlan, ipv6=opts.ipv6,
+                               dhcp_client=opts.dhcpClient,
+                               dhcp_relay=opts.dhcpRelay,
+                               multiple_server=opts.multipleServer,
+                               remote_server=opts.remoteServer)
 
     net = Mininet( topo=topo, link=TCLink, build=False,
                    controller=None, autoSetMacs=True )