Last Modified: Sep 13, 2023
Affected Product(s):
BIG-IP LTM
Known Affected Versions:
11.5.1 HF1, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.5.1 HF6, 11.5.1 HF7, 11.5.1 HF8, 11.5.1 HF9, 11.5.1 HF10, 11.5.1 HF11, 11.5.2 HF1, 11.5.3 HF1, 11.5.3 HF2, 11.5.4 HF1, 11.5.4 HF2, 11.5.4 HF3, 11.5.4 HF4, 12.0.0, 12.1.0 HF1, 12.1.0 HF2, 12.1.1 HF1, 12.1.1 HF2, 12.1.2 HF1, 12.1.2 HF2
Fixed In:
12.1.0, 12.0.0 HF1, 11.6.0 HF6
Opened: Nov 04, 2014 Severity: 3-Major Related Article:
K17539
The Traffic Management Microkernel (TMM) process may restart and produce a core file when using the SSL::disable client-side iRule command within an HTTP_REQUEST event. Symptoms As a result of this issue, you may encounter one or more of the following symptoms: The BIG-IP system fails over to another host in the device group. The BIG-IP system generates a TMM core file to the /shared/core directory. The BIG-IP system temporarily fails to process traffic.
Traffic disrupted while tmm restarts.
This issue occurs when the following conditions are met: You have configured a virtual server that uses an iRule. The iRule contains the SSL::disable client-side iRule command within an HTTP_REQUEST event. The virtual server processes traffic that triggers the HTTP_REQUEST event while processing encrypted traffic.
Do not put 'SSL::disable clientside' inside HTTP_REQUEST.
The Traffic Management Microkernel (TMM) process no longer restarts and produces a core file when using the SSL::disable client-side iRule command within an HTTP_REQUEST event.