I'm about to sign up for an ISP that offers 100 Mbps down / 50 Mbps up via an ethernet jack. I have an airport extreme. The ISP warned me that many routers aren't able to handle 100 Mbps of Internet traffic. Are routers rated for maximum Internet speeds, or is there some way to test it out in advance?
Edit: I think I may have been misunderstood. There's no cable modem. My whole building is being wired up for Internet via mysterious fiber connections or something, and it ends with a 100Mbps ethernet jack in my unit. My question is whether I can get the fastest speed possible if I hook an Airport Extreme into that jack and connect a few computers to it.