F5 LTM VIP/STP Problem

I would like to report the same issue's and add some of my information to this discussion.

 

 

Setup: 2x ltm 1600 in active/standby mode.

 

Firmware's 9.xx to 11.xx

 

 

I can confirm that the symptoms disappear when using a server or workstation with a single NIC or changing the load balancing from automatic to network Fail-over only.

 

 

To add. i have this issue with the VIP's but also with the self ip's of the LTM's.

 

Also the mgmt interface is hooked up to a seperate flat(no routing) L2 network with its own ip range.

 

Even the management interface's behave in the way's described in the above posts when accessed on a machine with double NIC's in the management network.

 

 

On servers with multiple NICS connected to 1 switch with port-aggregation / (lacp trunks) this issue does not occur.

 

I went trough all the possible arp tables and i cannot find any mismatch in the IP -> arp.

 

 

Regards,

 

Ton