Bug ID 481663: Disable isession control channel on demand.

Last Modified: Apr 28, 2025

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

Known Affected Versions:
11.4.0, 11.4.1, 11.5.0, 11.5.1, 11.5.1 HF1, 11.5.1 HF2, 11.5.1 HF3, 11.5.1 HF4, 11.5.1 HF5, 11.6.0, 11.6.0 HF1, 11.6.0 HF2, 11.6.0 HF3, 11.6.0 HF4, 11.6.0 HF5

Fixed In:
12.0.0, 11.6.0 HF6, 11.5.1 HF6, 11.4.1 HF9

Opened: Sep 29, 2014

Severity: 3-Major

Symptoms

Customers running into isession related issues.

Impact

TMM could run out of memory because of these issues.

Conditions

This happens when APM has been running.

Workaround

This issue has no workaround at this time.

Fix Information

If customer does not need optimized tunnels, app tunnels, remote desktop then he can safely disable the db variable "isession.ctrl.apm" which disables isession. Then do "bigstart restart tmm apd" so that the db variable takes effect.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips