Bug ID 632366: Prevent a spurious Broadcom switch driver failure.

Last Modified: Oct 16, 2023

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

Known Affected Versions:
12.1.1, 12.1.2, 12.1.3,, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1

Fixed In:

Opened: Dec 07, 2016

Severity: 3-Major


When a high volume traffic is sent to a BIG-IP system, the Broadcom network switch driver might fail. The failure occurs because the switch driver is preempted (by tmm) from completing a long chip reprogramming routine and touching a watchdog. Sod, which monitors the watchdog, thinks the switch driver has become nonfunctional and kills it.


Potential eventual system outage if the Broadcom switch driver fails.


A very high volume traffic is sent to a BIG-IP system under certain circumstances.



Fix Information

A spurious Broadcom switch driver failure is not possible anymore.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips