How to modify my wccp load-balance

Question

hi all
I've two WAE in my core, 612 (10.99.100.95) and 674 (10.99.100.96)
and 3750 stack is my core switch
I configured wccp tcp-promiscuous router-list 1 l2-redirect l2-return mask-asign in both WAE
and wccp load balance is work fine
but in my environment ip subnet, like 10.10.10.0
10.10.10.1 ~ 10.10.10.128 will load balance in WAE-612
and 10.10.10.128 ~ 10.10.10.255 will load balance in WAE-674
and I want to reverse it
I try to change WAE ip address
but it still haven't change
anyone could help me ?
thanks

Answer 1

This isn't necessarily a problem.  WCCP uses a hash table of 256 buckets to distribute traffic across the devices in a service group.  When you have two devices in the service group, each one gets 50% of the buckets (i.e. WAE1 gets buckets 0-127 and WAE2 gets buckets 128-255).  When a device leaves the service group, the buckets it was allocated are reassigned to the remaining device in the service group.  When a device is added to the service group, it will get 50% of the buckets, but it's not guaranteed that it will get the same 50% it previously had.
So in your case, when the 674 rejoined the service group, it's possible that it was allocated the buckets that the 612 was previously handling the 800 connections on.  This is normal behavior and not anything to be alarmed about.
Regards,
Zach