[minigraph.py]: Force /32 prefix for mux cable server IPv4 loopbacks (#…

…6418) Server IPv4 loopbacks do not always arrive with /32 prefix, which is a requirement for the MUX_CABLE table in config DB Signed-off-by: Lawrence Lee <[email protected]>
sonic-net · Jan 12, 2021 · 6e63ecf · 6e63ecf
1 parent 8b82408
commit 6e63ecf
Showing 1 changed file with 6 additions and 1 deletion.
diff --git a/src/sonic-config-engine/minigraph.py b/src/sonic-config-engine/minigraph.py
@@ -1505,7 +1505,12 @@ def get_mux_cable_entries(mux_cable_ports, neighbors, devices):
             entry = {}
             neighbor = neighbors[intf]['name']
             entry['state'] = 'auto'
-            entry['server_ipv4'] = devices[neighbor]['lo_addr']
+
+            # Always force a /32 prefix for server IPv4 loopbacks
+            server_ipv4_lo_addr = devices[neighbor]['lo_addr'].split("/")[0]
+            server_ipv4_lo_prefix = ipaddress.ip_network(UNICODE_TYPE(server_ipv4_lo_addr))
+            entry['server_ipv4'] = str(server_ipv4_lo_prefix)
+
             if 'lo_addr_v6' in devices[neighbor]:
                 entry['server_ipv6'] = devices[neighbor]['lo_addr_v6']
             mux_cable_table[intf] = entry