A Virtual Service combines a Virtual IP, or VIP, and a TCP/UDP port on which the ADC listens. Traffic arriving at the Virtual IP is redirected to one of the Real Servers associated with that service. The Virtual IP address cannot be the same as the management address of the ADC. i.e. eth0, eth1 etc…
The ADC determines how the traffic is re-distributed to the Servers based on a load-balancing policy set within the Basic tab in the Real Servers section.