NG-UI Added the validation for the topology connection.

 * New error validation is added for the VNF Topology connections.

Change-Id: I1b68695718410435cc064bd32ce1da007f6fa6ee
Signed-off-by: Barath Kumar R <barath.r@tataelxsi.co.in>
diff --git a/src/assets/i18n/en.json b/src/assets/i18n/en.json
index 44d452a..4bcf7a8 100644
--- a/src/assets/i18n/en.json
+++ b/src/assets/i18n/en.json
@@ -349,7 +349,12 @@
                 "CANNOTLINKVNFVLANDCP": "You cant link vnf_vl with cp",
                 "CANNOTLINKINTCPANDCP": "You cant link intcp with cp",
                 "CANNOTLINKCPANDINTCP": "You cant link cp with int_cp",
-                "CANNOTLINKVDUANDVDU": "You can't link a vdu with a vdu"
+                "CANNOTLINKVDUANDVDU": "You can't link a vdu with a vdu",
+                "CANNOTLINKCPANDCP": "You can't link a cp with a cp",
+                "CANNOTLINKVNFVLANDVNFVL": "You cant link vnf_vl with vnf_vl",
+                "CANNOTLINKVNFVLANDONTCP": "You cant link vnf_vl with int_cp",
+                "CANNOTLINKINTCPANDVNFVL": "You cant link intcp with vnf_vl",
+                "CANNOTLINKINTCPANDINTCP": "You cant link intcp with intcp"
             }
         },
         "NETSLICE": {