How does the CSM handle UDP load balacing?
A. The CSM will create a flow entry identified by a 5-tuple (src/dst IP, src/dst L4 port, protocol: udp) and can NAT source/destination IPs if needed (for example for server originated “connections”, that might need to have their source IP NAT’ed to the VIP) Since UDP does not have packets indicating a termination of the “connection”, the CSM will remove a UDP flow entry from its tables when the “idle timeout” for that flow expires. The “idle timeout” can be set, on a per-VIP basis, to as low as 4 seconds.
