Loss of vlan connectivity 24 hours after F5 BipIP trunk configured

Hi,

I'm hoping someone can help. We have an issue currently where we have had to remove a particular VLAN to rectify a loss of inter-VLAN routing. An F5 BipIP was configured to have several VLANs included - some of these are for future enterprise projects and not live yet. However, VLAN 190 features a load of production servers, all of which loss connectivity outside of the VLAN around 24 hours after the F5 was configured.

We initially got an alarm in our monitoring platform for a duplicate IP address of the HSRP for the VLAN, which was sourced to a MAC of the F5. The MAC table on the Catalyst 6500 we have also showed this to be the case.

After we removed the VLAN from the F5 trunk, the issue immediately resolved itself. On some other threads I've seen mentioned the SVI MAC being used rather than the VIP MAC but not sure if this could be the issue.

Any help is appreciated.

Patrick