In this case, there is a higher cost associated with the 10.7.152.100 route on this aggregation switch, the other aggregation switch the route cost would favor 10.7.152.100 and penalize the 10.7.162.100 VIP. In this manner the active-active design can distribute incoming VIP load between the core and Aggregation layers. ip route 10.7.162.100 255.255.255.255 10.7.162.22 track 1