Bug ID 432070: 1G link flapping between VIPRION B2000 Series and Cisco switch when secondary blade is being disabled

Last Modified: Jul 12, 2023

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

Known Affected Versions:
11.2.0, 11.4.1

Fixed In:

Opened: Sep 27, 2013

Severity: 3-Major

Related Article: K16164


If you apply a default speed setting of 1G, then disable an interface for 10G/1G SFP media ports, this can lead to link flapping side effects with certain peer switches (such as Cisco).


Link flapping observed on interfaces being disabled.


Link flapping was observed with certain (Cisco) peer switches at about the time of disabling the relevant ports.



Fix Information

The removal of a default speed setting prior to disabling an interface, when disabling a secondary blade, no longer causes 1G link flapping between B2100 blades and peer (Cisco) switches.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips