Last Modified: Feb 10, 2026
Affected Product(s):
BIG-IP TMOS
Known Affected Versions:
17.1.0, 17.1.0.1, 17.1.0.2, 17.1.0.3, 17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3, 17.1.1.4, 17.1.2, 17.1.2.1, 17.1.2.2, 17.1.3, 17.1.3.1, 17.5.1.3, 17.5.1.4, 21.0.0, 21.0.0.1
Opened: Feb 06, 2026 Severity: 3-Major
If tm.ipv4dagfrag is enabled on a multi slot system, tmm on all blades may not fully start up.
-- tmsh show sys cluster will show "TMM not ready" -- The affected blades will not pass traffic
-- F5OS tenant or chassis with more than 4 blades. - -tm.ipv4dagfrag enabled
Disable tm.ipv4dagfrag
None