Bug ID 461802: Reactivating the license on a BIG-IP Virtual Edition systems licensed for Good, Better, Best may result in TMM constantly restarting

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.5.4, 11.5.5, 11.5.6, 11.5.7, 11.5.8, 11.5.9, 11.5.10

Fixed In:
11.6.0

Opened: May 12, 2014

Severity: 3-Major

Symptoms

Reactivating the license on a BIG-IP Virtual Edition systems licensed for Good, Better, Best (licenses that limit the number of TMMs that can run by way of a perf_VE_cores entry in the license file) may result in TMM constantly restarting, and the system remaining inoperative/offline. Refer to https://support.f5.com/kb/en-us/solutions/public/14000/800/sol14810.html for more information on these licenses.

Impact

Traffic disrupted while tmm restarts.

Conditions

This occurs when a system is provisioned with more CPU cores than allowed by the license. As a result of reactivating the license, the system may try to start a number of TMMs corresponding to the number of CPU cores, regardless of the number determined during system provisioning.

Workaround

After reactivating the license, restart mcpd or reboot the BIG-IP system.

Fix Information

Prevented TMM from restarting when reactivating the license.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips