Bug ID 969105: HA failover connections via the management address do not work on vCMP guests running on VIPRION

Last Modified: Apr 20, 2021

Bug Tracker

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

Known Affected Versions:
13.1.0,,,,,,,,, 13.1.1,,,,, 13.1.3,,,,,,, 13.1.4, 14.1.0,,,,,, 14.1.2,,,,,,,,, 14.1.3,, 14.1.4,, 15.1.0,,,,,, 15.1.1, 15.1.2,

Opened: Dec 02, 2020
Severity: 3-Major


A high availability (HA) failover connection using the management IP addresses does not work on vCMP guests running on a VIPRION. BIG-IP instances running directly on hardware, on Virtual Edition, and as vCMP guests running on an appliance are unaffected. High availability (HA) failover connections using self IPs are unaffected.


Failover state determination over the management port is permanently down.


1. vCMP guest running on a VIPRION 2. HA failover connection using the management IP addresses


Run the following command on all Guests: touch /var/run/chmand.pid The workaround will not survive a reboot, so a more permanent workaround is to edit the file /config/startup and add a line to touch /var/run/chmand.pid. Add this line to the end of /config/startup: (sleep 120; touch /var/run/chmand.pid) & Note: The sleep time of 120 seconds should be tested as it depends on how quickly or slowly the Guest starts up, so the appropriate value for one system may differ from another system. Alternatively, K11948 could be used to issue commands at the system startup after verification if mcpd is up and ready, eg: #!/bin/bash source /usr/lib/bigstart/bigip-ready-functions wait_bigip_ready # Customized startup command(s) can be added below this line. touch /var/run/chmand.pid # Customized startup command(s) should end above this line.

Fix Information


Behavior Change