Bug ID 2202065: LACP LAG interface stops forwarding packets when interface is disabled and re-enabled

Last Modified: Jun 25, 2026

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

Fixed In:
F5OS-A 1.8.4

Opened: Jan 16, 2026

Severity: 3-Major

Symptoms

When an interface that is part of a LACP LAG is disabled and then re-enabled, the interface stops forwarding packets.

Impact

LACP LAG down since BPDU packets are not being captured.

Conditions

LACP LAG interface disabled and re-enabled.

Workaround

A reboot re-enables packet forwarding on the interface.

Fix Information

Restarting the appliance allows BPDU packet capture which fixes LACP.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips