Last Modified: Oct 19, 2025
Affected Product(s):
F5OS Velos
Fixed In:
F5OS-C 1.8.2
Opened: Jun 11, 2025 Severity: 3-Major
Dagv2 tables are randomized and may change when a tmm is restarted. This can result in a change of traffic distribution, which in some cases may lead to traffic disruption. The specific condition when this option was introduced is using a CGNAT pool that is not large enough.
- dag distribution changes which may cause a traffic disruption.
- tmm is restarted (or chassis rebooted)
You can restart tmm until the distribution is good, which can be checked using tools like cmp_dest.
ID 1966941 added two DB variables to control dagv2 behavior - sdag.runtime.hashtable sdag.runtime.mirror.hashtable. This adds F5OS-side support to this solution.