Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP CGN
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, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1
Fixed In:
13.1.0, 12.1.4
Opened: Jun 16, 2017 Severity: 2-Critical Related Article:
K44021449
Changing LSN pool members while processing traffic may cause tmm to crash.
When tmm crashes, traffic processing will stop until tmm restarts. Note that this can occur, even if the change was on a high-availability peer unit and config-sync has taken place.
-- Changing, using, or removing an LSN pool. -- Traffic is being processed.
Recommend to change LSN pool members during a maintainence window with low traffic or ideally to use an HA pair with a standby unit for implementing configuration changes on live traffic.
tmm no longer crashes when changing LSN pool members while processing traffic.