Bug ID 1497061: Added support for VLANs above 512 with xnet-IAVF driver

Last Modified: Oct 15, 2025

Affected Product(s):
BIG-IP LTM(all modules)

Known Affected Versions:
15.1.9.1, 15.1.10, 15.1.10.2, 15.1.10.3, 15.1.10.4, 15.1.10.5, 15.1.10.6

Fixed In:
17.1.3

Opened: Jan 29, 2024

Severity: 3-Major

Symptoms

TMM crashes when there are more than 512 VLANs

Impact

Traffic disrupted while tmm restarts. You cannot create an environment to handle >512 VLANs

Conditions

-- BIG-IP uses xnet-IAVF driver -- Create more than 512 VLANs

Workaround

Reduce the number of VLANs to 512 or below 512.

Fix Information

Reduce the number of VLANs to 512 or below 512.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips