Last Modified: Jan 07, 2026
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
17.1.1.3, 17.1.1.4, 17.1.2, 17.1.2.1, 17.1.2.2, 17.1.3
Fixed In:
21.0.0, 17.5.1.2
Opened: Apr 16, 2025 Severity: 2-Critical
Crashes after many failovers when upgraded from 15.1.x to 17.1.x version.
Traffic disrupted while tmm restarts.
- IPsec is configured, ie the BIG-IP is an IPsec peer. - Observed only after a failover and when an upgrade from software version 15.x to 16.x or 17.x is being performed.
Enable the sys db variable "ipsec.removeredundantsa" to avoid the crash.
This tmm crash will not occur after upgrade and failover.