Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
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, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1
Fixed In:
13.1.0, 12.1.3.6
Opened: Sep 14, 2017 Severity: 2-Critical
During stress/load testing, with a large number of connections which triggers flow sweeping, TMM restarts.
Traffic disrupted while tmm restarts.
A large number of connections are seen, which triggers an expansion of the connflow hash table at the same time the connflow sweeper is active.
There is no workaround at this time.
Connflow removal from the internal hash table is deferred until the entire bucket is processed.