Cisco IOS

wikipedia:Cisco:Cisco Internetwork Operating System (IOS) is a network operating systems used on Cisco Systems switches and routers.

See also

Networking: bandwidth, latency, Jitter, Ethernet, UPnP, MPLS, Frame Relay, ATM, TCP/IP, ARP, WiFi, BGP, Networking timeline, Router, Proxy ARP, Services & Networking, Traffic shapper