Bug ID 705611: The TMM may crash when under load when configuration changes occur when the HTTP/2 profile is used

Last Modified: Nov 07, 2022

Bug Tracker

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

Known Affected Versions:
12.1.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1, 12.1.1 HF1, 12.1.1 HF2, 12.1.2, 12.1.2 HF1, 12.1.2 HF2, 12.1.3,,,, 13.0.0, 13.0.0 HF1, 13.0.0 HF2, 13.0.0 HF3, 13.0.1, 13.1.0,,,,,

Fixed In:

Opened: Feb 06, 2018
Severity: 2-Critical


The TMM may later crash after a configuration change done under load if the HTTP/2 profile is used.


Traffic disrupted while tmm restarts.


A configuration change occurs. The configuration change is large enough, or the TMM load large enough that the change is not synchronous. The change involves a HTTP/2 profile. Data traffic progresses through a partially initialized HTTP/2 virtual server, potentially causing a later crash.


There is no workaround at this time.

Fix Information

Large configuration changes to the TMM involving a HTTP/2 profile will no longer potentially cause a TMM crash.

Behavior Change