Cisco Bug: CSCvt85322 - Wrong label stack in TI-LFA backup path when node SID distributed by two ISIS instances
Sep 02, 2020
- Cisco ASR 9000 Series Aggregation Services Routers
Known Affected Releases
Symptom: In specific network design, where node SID prefix is advertised by multiple ISIS instances, with mutual redistribution at multiple nodes in the network, the TI-LFA backup may have an incorrect implicit null label for the affected prefix SID. Conditions: The problem happens when the last P node in the TI-LFA backup label stack is also redistributing the affected prefix from another IGP instance.
Bug details contain sensitive information and therefore require a Cisco.com account to be viewed.
Bug Details Include
- Full Description (including symptoms, conditions and workarounds)
- Known Fixed Releases
- Related Community Discussions
- Number of Related Support Cases