Bug ID 434400: tmm might core with rate-limiting on virtual server

Last Modified: Sep 13, 2023

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

Known Affected Versions:
11.2.1, 11.4.0, 11.4.1, 11.5.0, 11.5.1

Fixed In:
11.6.0, 11.5.2, 11.4.1 HF9

Opened: Oct 17, 2013

Severity: 3-Major

Related Article: K15803


tmm might core when rate-limiting is configured on a virtual server.


Traffic disrupted while tmm restarts.


This occurs on a virtual server with rate-limiting enabled and unexpected filter operations that send LB selection after connection is in progress. This might also occur with an iRule that behaves similarly, for example, issuing an LB command after a TCP::release.



Fix Information

The connection is terminated and tmm core no longer occurs.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips