Last Modified: Aug 19, 2026
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
11.5.2, 11.5.2 hf1, 11.5.3, 11.5.3 hf1, 11.5.3 hf2, 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, 12.0.0, 12.0.0 hf1, 12.0.0 hf2, 12.0.0 hf3, 12.0.0 hf4
Fixed In:
12.1.0, 11.6.1, 11.5.4
Opened: Aug 07, 2015 Severity: 3-Major Related Article:
K03383492
TMM may produce a core file when attempting to retry to calculate the rate-limit on a pool member that has gone down.
Traffic disrupted while tmm restarts.
This occurs when the following conditions are met: - service-down-action reselect. - rate limit specified. - traffic load balanced to pool members. - traffic is over the rate for all pool members. - all pool members go down.
Remove rate-limit configuration.
TMM no longer produces a core file when attempting to retry to calculate the rate-limit on a pool member that has gone down.