Cisco Bug: CSCvv44756 - RIB fails to notify bgp of missing attribute value in the case of multipath
Sep 24, 2020
- Cisco ASR 9000 Series Aggregation Services Routers
Known Affected Releases
Symptom: BGP NSR not happening because ipv4 unicast table version is bumping aggressively. Table version is bumping because route download to RIB is failing. We see attribute download errors increasing. Most likely RIB failure is due to attribute id not found during route download. Conditions: bgp attribute-download command is enable & lots of route churn is observed router bgp <as-number> address-family ipv4 unicast bgp attribute-download bgp routes that are churning are multi-path (either E/UCMP and or bgp backup paths). This is platform independent issue, and can be seen since initial support for "bgp attribute-download"
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