Prior to our Sup720 upgrade on our 6509,from a Sup1a, it seemed like most servers directly connected to our core 6509 would average approx. 1ms ping response time from most clients throughout our network. Now that we are on a dual-core 6509 design both with Sup720's, its seems like most servers are now responding with approx. 15ms response ping time to clients. Although there has not been any noticiable difference in performance from server to clients, I was wondering if this is something that I need to be concerned with? Any thoughts.