Bug ID 686228: TMM may crash in some circumstances with VLAN failsafe

Last Modified: Sep 13, 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, 11.6.0, 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, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2, 12.1.0, 12.1.1, 12.1.2, 12.1.3, 12.1.3.1, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0, 13.1.0.1, 13.1.0.2, 13.1.0.3, 13.1.0.4, 13.1.0.5

Fixed In:
14.0.0, 13.1.0.6, 12.1.3.2, 11.6.4, 11.5.9

Opened: Sep 29, 2017

Severity: 2-Critical

Related Article: K23243525

Symptoms

TMM may crash when managing traffic in response to the VLAN failsafe traffic generating mechanisms

Impact

A TMM may core file may be produced. Traffic disrupted while tmm restarts.

Conditions

- VLAN failsafe is configured with low timers. - VLAN failsafe is triggered and multiple responses are received for traffic generating in fast succession.

Workaround

Relax the timer to the default VLAN failsafe timer setting.

Fix Information

TMM no longer crashes in some circumstances with VLAN failsafe.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips