Add Mcast Rule for Underlay and TRM

roles/validate/files/rules/required_rules/202_global_underlay_mcast_trm.py

@@ -0,0 +1,31 @@
+class Rule:
+    id = "202"
+    description = "Verify Fabric Underlay Supports Multicast for TRM"
+    severity = "HIGH"
+
+    @classmethod
+    def match(cls, inventory):
+        results = []
+        fabric_replication = False
+        fabric_mcast_mode = False
+        fabric_trm = False
+
+        if inventory.get("vxlan", None):
+            if inventory["vxlan"].get("underlay", None):
+                if inventory["vxlan"].get("underlay").get("general", None):
+                    fabric_replication = inventory["vxlan"]["underlay"]["general"].get("replication_mode", False)
+
+                if inventory["vxlan"].get("underlay").get("multicast", None):
+                    fabric_mcast_mode = inventory["vxlan"]["underlay"]["multicast"].get("rp_mode", False)
+                    fabric_trm = inventory["vxlan"]["underlay"]["multicast"].get("trm_enable", False)
+
+        if fabric_replication:
+            if ((fabric_replication == "multicast" and fabric_mcast_mode == "bidir" and fabric_trm) or
+                    (fabric_replication == "ingress" and fabric_trm)):
+                results.append(
+                    "For vxlan.underlay.multicast.trm_enable to be enabled, "
+                    "vxlan.underlay.general.replication_mode must be set to multicast and "
+                    "vxlan.underlay.multicast.rp_mode must be set to asm."
+                )
+
+        return results