We are looking to move to a high bandwidth WAN with either sonnet or DS3. We currently are frame-relay and T1. We have a central hub which is a 3620 router to host the majority of the connections. We would like to consolidate and have one router with all wic-1dsu cards in it. We would like to get rid of all the serial connections and external dsus. We were looking into one of the 3700 series routers cause its time to upgrade our 3620. What would be the best road to take in regards to upgrading and consolidating all the connections.
