Cisco Bug: CSCvu92676 - TI-LFA OR uloop not becoming operational in certain platform when we programme SRTE auto tunnel path
Oct 01, 2020
- Cisco ASR 9000 Series Aggregation Services Routers
Known Affected Releases
Symptom: Forwarding is broken when OSPF programmed a path via SRTE auto paths for TI-LFA protection or Microloop Avoidance on certain platform (e.g. NCS55xx, NCS5xx, 8xxx, etc.) that do not support them. This results in TI-LFA and Microloop Avoidance not to work and may cause other issues in the platform forwarding layer. Conditions: Issue is specific to platforms like NCS5xxx, NCS5xx and 8xxx when OSPF is enabled with Segment Routing and TI-LFA or Microloop Avoidance features are enabled. For this scenario to occur, the number of labels required for the TI-LFA/Microloop Avoidance path need to be greater than supported for label stack usage directly that requires use of SRTE auto paths instead.
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Bug Details Include
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