Cisco Bug: CSCvv82316 - VXLAN - RIB failing to update after tracked static route is suspended
Oct 13, 2020
- Cisco Nexus 9000 Series Switches
Known Affected Releases
Symptom: The wrong route is installed in the RIB instead of the routes from the spine after the tracked static route is suspended, as shown below: DC1_BA_Leaf1# show ip bgp 126.96.36.199 vrf vxlan-900600 BGP routing table information for VRF vxlan-900600, address family IPv4 Unicast BGP routing table entry for 188.8.131.52/24, version 1207 Paths: (3 available, best #3) Flags: (0x880c0002) (high32 0x000020) on xmit-list, is not in urib, exported vpn: version 3370, (0x00000000100002) on xmit-list Path type: internal, path is valid, not best reason: Weight, no labeled nexthop Imported from 10.1.1.13:5:::::[184.108.40.206]/224 AS-Path: NONE, path sourced internal to AS 10.1.2.13 (metric 5) from 10.1.1.5 (10.1.1.5) Origin incomplete, MED 0, localpref 100, weight 0 Received label 900600 Extcommunity: RT:64512:900600 ENCAP:8 Router MAC:ac3a.6763.b11f Originator: 10.1.1.13 Cluster list: 10.1.1.5 10.1.1.7 Path type: internal, path is valid, not best reason: Router Id, no labeled nexthop Imported from 10.1.1.14:5:::::[220.127.116.11]/224 AS-Path: NONE, path sourced internal to AS 10.1.2.14 (metric 5) from 10.1.1.5 (10.1.1.5) Origin incomplete, MED 0, localpref 100, weight 0 Received label 900600 Extcommunity: RT:64512:900600 ENCAP:8 Router MAC:ac3a.672a.515b Originator: 10.1.1.14 Cluster list: 10.1.1.5 10.1.1.7 Advertised path-id 1, VPN AF advertised path-id 1 Path type: redist, path is valid, is best path, no labeled nexthop AS-Path: NONE, path locally originated 0.0.0.0 (metric 0) from 0.0.0.0 (10.1.3.16) Origin incomplete, MED 0, localpref 100, weight 32768 Extcommunity: RT:64512:900600 VRF advertise information: Path-id 1 advertised to peers: 18.104.22.168 10.186.177.34 10.186.177.38 VPN AF advertise information: Path-id 1 not advertised to any peer DC1_BA_Leaf1# show ip route 22.214.171.124 vrf vxlan-900600 IP Route Table for VRF "vxlan-900600" '*' denotes best ucast next-hop '**' denotes best mcast next-hop '[x/y]' denotes [preference/metric] '%<string>' in via output denotes VRF <string> 0.0.0.0/0, ubest/mbest: 1/0 *via 10.186.177.38, [20/0], 15:40:08, bgp-64512, external, tag 64562 DC1_BA_Leaf1# Conditions: The issue is seen after multiple HA fail-overs performed on a firewall reachable through a tracked static route.
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