Bug ID 1128429: Rebooting one or more blades at different times may cause traffic imbalance results High CPU

Last Modified: Mar 31, 2023

Bug Tracker

Affected Product:  See more info
BIG-IP TMOS(all modules)

Known Affected Versions:
13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,,, 13.1.4,, 13.1.5,, 14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,,,,,,, 14.1.5,,,, 15.1.0,,,,,, 15.1.1, 15.1.2,, 15.1.3,, 15.1.4,, 15.1.5,, 15.1.6,, 15.1.7, 15.1.8,, 16.1.0, 16.1.1, 16.1.2,,, 16.1.3,,,, 17.0.0,,

Opened: Jul 22, 2022
Severity: 4-Minor


One or more TMMs are consuming more CPU cycles than the other TMMs. The increased CPU usage is caused by a significant number of internal TMM traffic redirections.


Increased TMM CPU usage on one or more TMMs.


- LSN pools enabled. - The sp-dag configured on the client-side and server-side VLANs (cmp-hash src-ip and cmp-hash dst-ip respectively).


- Set up an High Availability (HA) pair of VIPRIONs and make an active VIPRION cluster standby before doing any operation that involves the rebooting, insertion, or removal of one or more blades. Or if the VIPRION is a stand-alone cluster: - Stop all external traffic to the VIPRION before rebooting, inserting, or removing one or more blades. - Restart or reboot all the blades at the same time from the primary, using the following "clsh" command: "clsh reboot volume <NEW_VOLUME>" or "clsh bigstart restart".

Fix Information


Behavior Change