[ONOS-7475] Refactoring SR tests

Change-Id: I10e51fcb8b416167e6a338e9030933162640af89
diff --git a/TestON/tests/USECASE/SegmentRouting/SRBridging/dependencies/conf/dhcpd.conf b/TestON/tests/USECASE/SegmentRouting/SRBridging/dependencies/conf/dhcpd.conf
new file mode 100644
index 0000000..aa559d2
--- /dev/null
+++ b/TestON/tests/USECASE/SegmentRouting/SRBridging/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;
+}