Hi,

all depends on how you want to loadbalance.

If you just want to loadbalance layer4, this is to loadbalance all requests send to the VIP and the port, you don't need a L7 classmap.

If you want to use layer7 functionality like HTTP header loadbalancing, then you need to use a L7 classmap.

This is an example of a L4 loadbalancing config:

http://docwiki.cisco.com/wiki/Basic_Load_Balancing_Using_Routed_Mode_on_the_Cisco_Application_Control_Engine_Configuration_Example

This is an example of a L7 loadbalancing config:

http://docwiki.cisco.com/wiki/URL_Load_Balancing_Using_Routed_Mode_on_the_Cisco_Application_Control_Engine_Configuration_Example

Pls rate if this was useful for you.

HTH,

Dario