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Cisco Bug: CSCvv29001 - uLoop avoidance may not triggered in flex-algo with affinity causing traffic loss

Last Modified

Oct 01, 2020

Products (1)

  • Cisco ASR 9000 Series Aggregation Services Routers

Known Affected Releases


Description (partial)

SR microlool avoidance may not be triggered for Flex-Algo when parallel link comes up.

- flex-algo enabled under ISIS, with affinity constraints
- SR uloop avoidance enabled under ISIS
- link between two nodes is excluded from flex-algo
- new parallel link, which is not excluded from flex-algo comes up
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