Bug ID 435957: WOM/WAM/AAM link is 'Down'

Last Modified: May 29, 2024

Affected Product(s):
BIG-IP AAM, WOM(all modules)

Known Affected Versions:
11.1.0, 11.2.0, 11.2.1, 11.3.0, 11.4.0, 11.4.1

Fixed In:
11.4.1 HF2, 11.4.1 HF2, 11.4.0 HF6, 11.3.0 HF9, 11.2.1 HF10, 11.2.1 HF10

Opened: Oct 30, 2013

Severity: 1-Blocking

Related Article: K16615


After installing, WOM/WAM/AAM link is 'Down' and cannot be restored without a restart.


The wocd process cannot establish communication. The remote pair looks down.Not that the problem might not be visible without a high availability configuration, specifically, an Active/Standby setup.


WOM/WAM/AAM acceleration configuration in a clustered environment.


To recover from the link-down condition, run the command: bigstart restart mcpd. As an alternative, do not use cluster configurations for WOM/WAM/AAM.

Fix Information

This version corrects the communication problem between local and remote endpoints in a WAN optimization setup. The problem exists only when multiblade chassis exist on both sides of the WAN communication.

Behavior Change

Guides & references

K10134038: F5 Bug Tracker Filter Names and Tips