We used 6 2950 switches and 6 2621 routers and an ISDN switch for the CCNA 640-801 lab setup. On CCNA TV I heard 2811 routers are used. Does this mean we need to get new routers? Can we get by with the 2600 series routers and new IOS images? What would we miss out on the hands-on if we stick to the current hardware?