Cisco Bug: CSCuo20651 - IPv6 Traffic puntted unexpectedly in 6PE over CSC case
Last Modified
Jul 03, 2019
Products (7)
- Cisco ASR 9000 Series Aggregation Services Routers
- Cisco IOS XR Software
- Cisco ASR 9922 Router
- Cisco ASR 9010 Router
- Cisco ASR 9006 Router
- Cisco ASR 9001 Router
- Cisco ASR 9912 Router
Known Affected Releases
4.3.4.BASE
Description (partial)
Symptom: When a IPv6 prefix1 is reachable over IPv6 prefix2 and also Ipv6 prefix2 is reachable via a MPLS Label such as in a 6PE or 6VPE topology. The re-programming of IPv6 prefix1 becomes stale (meaning first_rldi bit is not set to 0 or 1 correctly) when MPLS Label changes from recursive to non-recursive (meaning it transitions to a BGP learnt or a IGP learnt label). Conditions: - ASR9000 routers should be running release 4.3.4 or 5.1.1 - 6VPE or 6PE learnt routes reachable via MPLS label nexthop which has changed from recursive to non-recursive or non-recursive (IGP) learned to recursive (BGP learned)
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Bug Details Include
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