Bug ID 539656: CMP messages may be lost leading to inconsistent behaviors.

Last Modified: Jan 01, 2023

Bug Tracker

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

Known Affected Versions:
10.2.2, 10.2.4, 11.0.0, 11.1.0, 11.2.0, 11.2.1, 11.3.0, 11.4.0, 11.4.1

Fixed In:
11.4.1 HF10, 11.2.1 HF16

Opened: Aug 13, 2015
Severity: 3-Major


Features that utilize CMP messages may exhibit inconsistent behavior.


Some examples: ARP failures, persistence failures, and connection stalling.


Upon receiving a CMP message, the tmm processes an internal event that sends CMP message that overwrites the incoming message.



Fix Information

Incoming CMP messages are no longer overwritten before they have been processed.

Behavior Change