Skip special keys without colon (e.g., ROUTE_TABLE_DEL_SET) that don't represent route entries

Signed-off-by: nnelluri <[email protected]>

Author: nnelluri-cisco

tests/common/fixtures/fib_utils.py

@@ -84,8 +84,11 @@ def get_t2_fib_info(duthosts, duts_cfg_facts, duts_mg_facts, testname=None):
                 fib = json.load(fp)
                 for k, v in list(fib.items()):
                     skip = False
-
-                    prefix = k.split(':', 1)[1]
+                    if ":" in k:
+                        prefix = k.split(':', 1)[1]
+                    else:
+                        # Handle keys without colon
+                        continue
                     ifnames = v['value']['ifname'].split(',')
                     nh = v['value']['nexthop']
                     nh_ips = nh.split(',')