diff --git a/TestON/tests/USECASE_SegmentRouting/Dependency/cord_fabric.py b/TestON/tests/USECASE_SegmentRouting/Dependency/cord_fabric.py
new file mode 100755
index 0000000..b710b12
--- /dev/null
+++ b/TestON/tests/USECASE_SegmentRouting/Dependency/cord_fabric.py
@@ -0,0 +1,93 @@
+#!/usr/bin/python
+
+import os
+from optparse import OptionParser
+
+from mininet.net import Mininet
+from mininet.topo import Topo
+from mininet.node import RemoteController, UserSwitch, Host
+from mininet.link import TCLink
+from mininet.log import setLogLevel
+from mininet.cli import CLI
+
+# Parse command line options and dump results
+def parseOptions():
+    """Parse command line options"""
+    parser = OptionParser()
+    parser.add_option('--spine', dest='spine', type='int', default=2,
+                      help='number of spine switches, default=2')
+    parser.add_option('--leaf', dest='leaf', type='int', default=2,
+                      help='number of leaf switches, default=2')
+    parser.add_option('--fanout', dest='fanout', type='int', default=2,
+                      help='number of hosts per leaf switch, default=2')
+    parser.add_option('--onos', dest='onos', type='int', default=0,
+                      help='number of ONOS Instances, default=0, 0 means localhost, 1 will use OC1 and so on')
+
+    (options, args) = parser.parse_args()
+    return options, args
+
+opts, args = parseOptions()
+
+class LeafAndSpine(Topo):
+    def __init__(self, spine=2, leaf=2, fanout=2, **opts):
+        "Create Leaf and Spine Topo."
+
+        Topo.__init__(self, **opts)
+
+        # Add spine switches
+        spines = {}
+        for s in range(spine):
+            spines[s] = self.addSwitch('spine10%s' % (s + 1), dpid="00000000010%s" % (s + 1))
+        # Set link speeds to 100Mb/s
+        linkopts = dict(bw=10)
+
+        # Add Leaf switches
+        for ls in range(leaf):
+            leafSwitch = self.addSwitch('leaf%s' % (ls + 1), dpid="00000000000%s" % (1+ls))
+            # Connect leaf to all spines
+            for s in range(spine):
+                switch = spines[s]
+                self.addLink(leafSwitch, switch, **linkopts)
+            # Add hosts under a leaf, fanout hosts per leaf switch
+            for f in range(fanout):
+                host = self.addHost('h%s' % (ls * fanout + f + 1),
+                                         cls=IpHost,
+                                         ip='10.0.%s.%s/24' % ((ls + 1), (f + 1)),
+                                         gateway='10.0.%s.254' % (ls + 1))
+                self.addLink(host, leafSwitch, **linkopts)
+
+class IpHost(Host):
+    def __init__(self, name, gateway, *args, **kwargs):
+        super(IpHost, self).__init__(name, *args, **kwargs)
+        self.gateway = gateway
+
+    def config(self, **kwargs):
+        Host.config(self, **kwargs)
+        mtu = "ifconfig "+self.name+"-eth0 mtu 1490"
+        self.cmd(mtu)
+        self.cmd('ip route add default via %s' % self.gateway)
+
+def config(opts):
+    spine = opts.spine
+    leaf = opts.leaf
+    fanout = opts.fanout 
+    controllers= [ os.environ['OC%s' % i] for i in range(1,opts.onos+1) ] if (opts.onos) else ['127.0.0.1']
+    topo = LeafAndSpine(spine=spine, leaf=leaf, fanout=fanout)
+    net = Mininet(topo=topo, link=TCLink, build=False,
+                  switch=UserSwitch,
+                  controller = None,
+                  autoSetMacs = True)
+    i = 0
+    for ip in controllers:
+        net.addController( "c%s" % (i), controller=RemoteController, ip=ip)
+        i += 1;
+    net.build()
+    net.start()
+    CLI(net)
+    net.stop()
+
+if __name__ == '__main__':
+    setLogLevel('info')
+    config(opts)
+    os.system('sudo mn -c')
+