Last Modified: Oct 06, 2020
See more info
Known Affected Versions:
12.0.0, 12.0.0 HF1, 12.0.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2
Opened: Apr 21, 2016
Related AskF5 Article: K34453301
TMM may crash or behave abnormally on a Standby BIG-IP unit. Memory utilization before the crash can appear to be unusually high.
The unit is not operational until TMM has finished writing the core file to disk and restarting. If the unit was Active for a different traffic-group, traffic for that traffic-group will be disrupted while tmm restarts.
This is a rare issue, currently known to occur only in WOM or Multipath TCP (MPTCP) virtual servers configured with mirroring. Virtual servers that make use of the standard TCP profile are not affected.
TMM no longer crashes in the rare case of WOM or Multipath TCP (MPTCP) virtual servers configured with mirroring.