Bug ID 2222085: Partition VLAN traffic may dropped for a noticeable period of time during standby initialization

Last Modified: Jun 25, 2026

Affected Product(s):
F5OS F5OS-C(all modules)

Known Affected Versions:
F5OS-C 1.8.2

Opened: Feb 12, 2026

Severity: 3-Major

Symptoms

LACP PDUs will be exchanged between the system controller and blade before switchd processes ConfD lagg membership and partition configuration (needed to setup partition vlans). As a result, LACP negotiation between blade and system controller completes before the lagg is actually ready for traffic. The delay between these events is typically ~10 seconds but may be up to 30 seconds.

Impact

Services depending on partition connectivity between blade and System Controller are delayed until the System Controller switch daemon configures hardware trunks and partition vlans on the BCM control plane switch.

Conditions

Standby initialization after a reboot or power cycle.

Workaround

None. Partition traffic between blade and system controller requires successfull LACPD negotiation and trunk/vlan configuration of the control plane switch.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips