Cisco Bug: CSCtc59318 - All BGP sessions flap if any prefix has more than 255 paths
Jan 31, 2017
- Cisco IOS
Known Affected Releases
Symptom: A cisco router running BGP willl reset all of the sessions to the established BGP neighbors If any route (VPNV4 or IPV4 etc.) is learned with more than 255 paths. Conditions: BGP peering must exist with more than 255 peers and the same prefix must be learned/advertised from all those peers hence resutling in more than 255 paths for that prefix.
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