Bug ID 507529: Active crash with assert: tmm failed assertion, non-zero ha_unit required for mirrored flow

Last Modified: Apr 10, 2019

Bug Tracker

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

Known Affected Versions:
11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF10, 11.5.1 HF11, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.2, 11.5.2 HF1, 11.5.3, 11.5.3 HF1, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5

Fixed In:
12.0.0, 11.6.0 HF6, 11.5.3 HF2

Opened: Feb 17, 2015
Severity: 3-Major

Symptoms

A blade on the active system crashes in a configuration containing a performance layer 4 virtual server with connection mirroring enabled.

Impact

When the crash occurs, the blade posts the following assert: 'tmm failed assertion, non-zero ha_unit required for mirrored flow' and crashes. Traffic disrupted while tmm restarts.

Conditions

The chassis is configured for network mirroring within cluster. There is more than one blade installed in the system or vcmp guest. A virtual server has connection mirroring enabled and is associated with a virtual address that is not assigned a traffic-group (traffic-group is none).

Workaround

Ensure that mirrored virtual servers are utilizing virtual addresses that are associated with a traffic group.

Fix Information

None

Behavior Change