[CVP,Q4] Add tags and review SL tests

Change-Id: Ic110e7123f42161911fc49daaaf3a3c045886eae
Related-PROD: PROD-30482
diff --git a/test_set/cvp-sanity/tests/test_default_gateway.py b/test_set/cvp-sanity/tests/test_default_gateway.py
index 8cea880..c1a36da 100644
--- a/test_set/cvp-sanity/tests/test_default_gateway.py
+++ b/test_set/cvp-sanity/tests/test_default_gateway.py
@@ -1,6 +1,8 @@
 import json
+import pytest
 
 
+@pytest.mark.full
 def test_check_default_gateways(local_salt_client, nodes_in_group):
     netstat_info = local_salt_client.cmd(
         tgt="L@"+','.join(nodes_in_group),