I've read the documentation however I'm still a little confused as to what & how the primary interface is used for. It appears that the IP associated with this interface is registered with the CM. In my instance I require the IP associated with Gi2/0 to be registered with the CM and by changing the primary interface I can change this however I'm not sure how this affects WCCP traffic etc. Please see below for my current config.
My Data Centre config is as follows:
2 x Cisco 4507R Core switches
2 x OE7341
WAE1 is connected to Core1 & WAE2 is connected to Core2. A L2 EtherChannel exists betwen the cores
I'm using WCCP with L2 redirection and IP Forwarding as egress to a HSRP address. Currently Primary Interface is GigabitEthernet 1/0; default gateway is on the same subnet as the primary interface. GigabitEthernet 2/0 is the management interface with static routing in case Gi1/0 goes down.
Currently I can see all redirected WCCP traffic coming in & out of Gi1/0 which I presume is normal with Gi2/0 sitting idle.
Should I re-configure in a way that WCCP traffic comes in via Gi1/0 but returns via Gi2/0... how do I achieve this configuration? Default gate on the Gi2/0 interface?
Thanks in advance for any replies.