I'm not familiar with the 6500 modules that loadbalance; ie. ACE, ACN etc. But, I may need to start looking into using a loadbalancer in our dual 6500 distribution layer switches to loadbalance WCCP redirected traffic to our 7341s in our data center. Right now I have a single 7341 head-end WAE and am using IP forwarding as the Egress method which sends redirected traffic to the 7341's default gateway, which is the active IP address in a GLBP pair between the two 6500s.
Soon I will be adding a second 7341 for redundancy and have been advised to change the egree method to generic-GRE, in order to send the traffic back to the 6500 that it was redirected in from.
However, as the number of WAEs increases at the data center, does it make sense to have a loadbalancer, instead of WCCP, do the loadbalacing between the multiple WAEs? If so, is there a white paper that discusses that and gives a sample configuration in a 6500 environment?