Looking for used Cisco routers, switches or other used networking equipment? ANS buys and sells used routers, network switches, GBICs, optical networking equipment, RAS remote access servers, network hubs, and more from manufacturers such as Cisco, Foundry Networks, Juniper, Extreme Networks, Enterasys / Cabletron, 3Com, Nortel, Marconi / Fore, Riverstone Networks, Lucent and Alcatel.