Bug ID 1073781: Intermittent Issue with VLAN configuration

Last Modified: Apr 28, 2025

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

Known Affected Versions:
F5OS-C 1.2.1, F5OS-C 1.2.2, F5OS-C 1.3.0, F5OS-C 1.3.1, F5OS-C 1.3.2

Opened: Jan 18, 2022

Severity: 2-Critical

Related Article: K50315713

Symptoms

VLAN listeners and/or FDB entries fail to be automatically created in the partition configuration. VLAN listeners and FDB entries are required in order for the VELOS data path to function correctly. Because tenant deployment can take 5-to-10 minutes, the FDB and VLAN listener entries might not exist immediately.

Impact

Traffic on the affected VLAN does not function correctly.

Conditions

A VLAN listener or FDB entry may intermittently fail to be created when all of the following conditions are met: - The BIG-IP tenant version is 14.1.x. - The tenant is deployed OR a new VLAN is added to the tenant configuration.

Workaround

You can work around the issue by one of the following: - Deploy/Upgrade the BIG-IP tenant to a later version than BIG-IP 14.1.x - Remove and re-add the affected VLANs from the tenant in the partition configuration. This triggers a re-creation of the FDB and VLAN listener entries. 1. Login to the command line of the VELOS partition floating management IP address as the partition administrator. 2. Enter the configuration mode terminal by entering the following command: config 3. Use the following command syntax to display the VLANs associated to a tenant. show full-configuration tenants tenant <tenant name> config vlans 4. Use the following command syntax to remove a VLAN from a tenant: no tenants tenant <tenant name> config vlans <vlan number> For example, enter the following command: no tenants tenant exampleTenant config vlans 101 5. Enter the following command to commit the changes: commit 6. Use the following command syntax to re-add the VLAN to the tenant: tenants tenant exampleTenant config vlans <vlan number> For example, enter the following command: tenants tenant exampleTenant config vlans 101 7. Enter the following command to commit the changes: commit

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips