Last Modified: Apr 28, 2025
Affected Product(s):
BIG-IP AFM, APM, ASM, AVR, CGN, LTM, PEM, PSM, WAM, WOM
Known Affected Versions:
11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.1 HF10, 11.5.1 HF11, 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
Fixed In:
12.1.0, 12.0.0 HF1, 11.6.1, 11.5.4, 11.4.1 HF10
Opened: Jul 09, 2013 Severity: 3-Major Related Article:
K14573
Failovers between devices in a HA pair might result in an unexpected disruption of traffic (for instance, if virtual servers are configured for mirroring). Persistence / session table information would similarly be missing on the newly-active system.
- Failovers may result in unexpected disruption of traffic that failed to be mirrored. - Session database (SessionDB things, iRule session table, persistence table, etc) will not be mirrored, as expected, which may result in unknown unexpected traffic failures.
Platform that supports hardwired failover, configured for hardwired failover. (Note: this excludes chassis-based platforms, as well as VCMP guests and VEs) Network failover disabled.
Enable network failover, then restart all TMMs. Note: workaround will temporarily disrupt traffic.
State Mirroring now works for HA configurations that use only hardwired (serial) failover, without network failover.