Last Modified: Aug 19, 2026
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
11.5.4, 11.5.4 hf1, 11.5.4 hf2, 11.5.4 hf3, 11.5.4 hf4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.6.0, 11.6.0 hf1, 11.6.0 hf2, 11.6.0 hf3, 11.6.0 hf4, 11.6.0 hf5, 11.6.0 hf6, 11.6.0 hf7, 11.6.0 hf8, 11.6.1, 11.6.1 hf1, 11.6.1 hf2, 11.6.2, 11.6.2 hf1, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3
Fixed In:
12.0.0
Opened: Dec 12, 2014 Severity: 3-Major Related Article:
K02274323
During the active to standby to transition while passing traffic, tmm crashes.
tmm crashes on the standby, then restarts. If other traffic groups are active on the newly-standby unit, they will be disrupted.
This might occur when the following conditions are met: -- The transition from active to standby occurs. -- There exists an active SCTP association which has already been torn down on the clientside. -- The serverside is still attempting to establish an association to a nonresponsive pool member at the moment that the transition occurs.
None.
The tmm crash no longer occurs under the described conditions.