Bug ID 1121209: MTU value update on VLAN in tenant launched on r2k and r4k systems needs tmm restart

Last Modified: Dec 18, 2024

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

Known Affected Versions:
15.1.6, 15.1.6.1, 15.1.7, 15.1.8, 15.1.8.1, 15.1.8.2, 15.1.9, 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, 17.1.0, 17.1.0.1, 17.1.0.2, 17.1.0.3, 17.1.1, 17.1.1.1, 17.1.1.2, 17.1.1.3, 17.1.1.4, 17.1.2

Opened: Jun 23, 2022

Severity: 3-Major

Symptoms

Updating the MTU on a VLAN in a BIG-IP tenant requires a tmm restart.

Impact

Jumbo frames feature support impacted.

Conditions

Tenants launched on R2x00 or R4x00 appliances and configured to use Jumbo Frames.

Workaround

- Update the MTU value on the VLAN via the tenant's CLI (tmsh) or UI. - Restart tmm.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips