Failover require to clear manually ARPs in other networks devices to converge

Hi,

indeed you must have a problem on your network equipment. When a redundant BIG-IP system moves to an active status for a traffic group (faillover trigged), the system broadcasts a series of gratuitous ARP (GARP) packets to the network to update ARP tables on directly connected network devices or hosts.

If you do a TCPDUMP on member that will be active you can see all this gratuitous ARP. and you can proof that F5 do the job correctly.

however you must pay attention to a point, I already had a similar problem because I had too many VS and so many ARPs that are submitted to the network. Some routers / switches are limited and ignore part of the Freeous ARP. there is a configuration to solve this problem, I could provide it to you if you are in this case.

how many vs do you have on your f5?

regards