Bug ID 2171937: The Virtual Server is not receiving traffic due to an incorrect VLAN update from F5OS platform

Last Modified: Feb 11, 2026

Affected Product(s):
F5OS Velos(all modules)

Known Affected Versions:
F5OS-A 1.8.3

Opened: Dec 03, 2025

Severity: 3-Major

Symptoms

When a specific native VLAN is configured for a port in virtual-wire, the incoming packets still arrive with VLAN ID 4094, while the Virtual Server expects traffic with the configured VLAN ID.

Impact

When enabling/disabling virtual-wire mode on a port with a configured native VLAN, the port default VLAN was being set with values (4094 for vwire enable, 4095 for vwire disable), ignoring any existing native VLAN configuration.

Conditions

Configuring a specific native vlan on a port and then configuring it in virtual-wire.

Workaround

Once the virtual-wire is configured on the port, if the remove and re-add the native vlans to the interfaces, the hardware should get programmed correctly.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips