Bug ID 681175: TMM may crash during routing updates

Last Modified: May 14, 2019

Bug Tracker

Affected Product:  See more info
BIG-IP All(all modules)

Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 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

Fixed In:
14.0.0, 13.1.0.4, 12.1.3.2

Opened: Aug 31, 2017
Severity: 2-Critical
Related AskF5 Article:
K32153360

Symptoms

When dynamic routing is configured and ECMP routes are received, certain routing updates may lead to a TMM crash.

Impact

Traffic disrupted while tmm restarts.

Conditions

-- Dynamic routing. -- ECMP routes.

Workaround

Disable ECMP routes by configuring "max-paths 1" in ZebOS.

Fix Information

TMM no longer crashes on routing updates when ECMP is in use.

Behavior Change