Last Modified: Aug 19, 2026
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
Fixed In:
13.0.0, 12.1.2
Opened: Apr 13, 2016 Severity: 3-Major
When an LSN pool is configured in PBA mode with a non-zero zombie timeout, inbound connections are killed and reset prematurely, often in a matter of seconds.
Inbound connections to PBA pools with a zombie timeout configured may not be usable.
PBA mode configured on the pool, and zombie_timeout set to a non-zero value.
None.
Inbound connections are no longer reset when zombie_timout is configured to a non-zero value.