Cisco Bug: CSCtc79723 - BGP neighbor flaps when MTU is set too low and neighbor uses SSO / NSR
Feb 28, 2018
- Cisco IOS
Known Affected Releases
12.2(33)SB 12.2(33)SB3 12.2(33)SB7 12.2(33.1.39)SB7
Symptom: BGP neighbor flaps when there are many withdraw / updates are sent out to the neighbor. Conditions: 1) RP is redundant and "ha-mode sso" is configured, 2) There are many withdraw that cannot be sent out in one update packet. This is a follow on from defect: CSCtb36849. The behaviour this defect corrected, by nature of the fix does not work for implementations where the MTU is set to 961 or lower.
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)
- Known Fixed Releases
- Related Community Discussions
- Number of Related Support Cases