Guest

Preview Tool

Cisco Bug: CSCtc59318 - All BGP sessions flap if any prefix has more than 255 paths

Last Modified

Jan 31, 2017

Products (1)

  • Cisco IOS

Known Affected Releases

12.4(6)T5

Description (partial)

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.
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)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.