Last Modified: Oct 06, 2020
Opened: Jun 21, 2013
Related AskF5 Article: K15844
vCMP guest may detect another vCMP guest's backplane broadcast traffic. The issue is visible by checking log messages in /var/log/ltm.
Traffic processing is unaffected, and the condition noted in the warning is not harmful. Log messages similar to the following appear in /var/log/ltm: 'warning tmm: 01190004:4: address conflict detected for 127.20.1.1 (02:01:23:45:00:18) on VLAN 4095'. These messages might be seen in the vCMP guest--they do not appear on the vCMP hypervisor.
This issue only affects vCMP guests running on VIPRION B4300, B4340, and B4350 blades with a version 11.4.0 hypervisor, when one of the vCMP guests is assigned interface 0.39.
Redeploy the vCMP guest that is using interface 0.39 to a different blade or to a different set of interfaces.
vCMP guests no longer process broadcast traffic from another guest and the log messages relating to address conflicts no longer appear.