Bug ID 425965: On BIG-IP 2000 and 4000, rapid changes to port speed and duplex mode might cause tmm restarts.

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.4.1, 11.5.0, 11.5.1, 11.5.2, 11.5.3, 11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10, 11.6.0, 11.6.1, 11.6.2, 11.6.3, 11.6.3.1, 11.6.3.2, 11.6.3.3, 11.6.3.4, 11.6.4, 11.6.5, 11.6.5.1, 11.6.5.2, 11.6.5.3, 12.0.0, 12.0.0 HF1, 12.1.0 HF1, 12.0.0 HF2, 12.1.0 HF2, 12.0.0 HF3, 12.0.0 HF4, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2, 12.1.0, 12.1.1, 12.1.2, 12.1.3, 12.1.3.1, 12.1.3.2, 12.1.3.3, 12.1.3.4, 12.1.3.5, 12.1.3.6, 12.1.3.7, 12.1.4, 12.1.4.1, 12.1.5, 12.1.5.1, 12.1.5.2, 12.1.5.3, 12.1.6, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1

Opened: Jul 23, 2013

Severity: 4-Minor

Symptoms

On the BIG-IP 2000 and 4000 family of platforms, rapid changes to port speed and duplex mode on the fixed RJ-45 ports may cause a TMM restart. Ports may be listed as down in UI, but through the CLI the system port is listed as up. Messages about tmm processes restarting may appear in /var/log/ltm.

Impact

Ports down due to tmm restarting.

Conditions

BIG-IP 2000 and 4000 platforms.

Workaround

Change both sides of the interface to auto-negotiation, then switch to the desired speed/duplex.

Fix Information

None

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips