Bug ID 719749: BGP last update timer incorrectly resets to 0 when 'max paths ebgp' is configured

Last Modified: Oct 03, 2023

Affected Product(s):
BIG-IP LTM(all modules)

Known Affected Versions:
11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.6.0, 11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3

Opened: May 11, 2018

Severity: 3-Major

Symptoms

In ZebOS, every time the scan timer resets, it also incorrectly resets the BGP last update timer to 0 (zero). Note: You can check that the new route shows up in response to the imish command 'sh ip route'.

Impact

BGP last update timer incorrectly resets to 0. If BGP routes are being redistributed into other protocols, the route may flap in the destination process.

Conditions

-- ZebOS has learned a route from a BGP peer. -- 'max-paths ebgp' is configured.

Workaround

There is no workaround other than not using 'max-paths ebgp'.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips