Router is designed for Internet access, corporate frame relay, point-to-point connectivity, and VPN. The versatile hardware platform of the router is further complemented by the AOS. The AOS allows for the support of static and default routes, demand routing, and allows for fast, accurate network convergence using routing protocols such as BGP, OSPF, and RIP. In addition, the AOS terminates frame relay, multilink frame relay, PPP, multilink PPP, and HDLC WAN protocols.