Bug ID 480795: [GTM] Move address from one HA redundant LTM to another could cause BIG-IP monitor fail

Last Modified: May 31, 2019

Bug Tracker

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

Known Affected Versions:
12.1.2, 12.0.0, 11.6.1, 11.6.0, 11.5.4, 11.5.2, 11.5.1, 11.5.0, 11.4.1

Opened: Sep 23, 2014
Severity: 4-Minor
Related AskF5 Article:
K40120584

Symptoms

[GTM] Move address from one HA redundant LTM to another could cause BIG-IP monitor failure.

Impact

Only one of the redundant LTM systems get probed. If the probed LTM is standby, it ignores the probe request. Available BIG-IP redundant LTM server is marked down; the monitor does not work, and all hosted virtual servers are marked down.

Conditions

BIG-IP redundant LTM server configuration with one address at 'Address List' and another at 'Peer Address List', one of the addresses is moved from another.

Workaround

In the GUI, delete the address from either the "Address List" or "Peer Address List" and click "Update". Then add the address to the other field and click "Update".

Fix Information

None

Behavior Change