Cisco Express ForwardingUnderstanding and troubleshooting CEF in Cisco routers and switchesNakia Stringfield, CCIE® No. 13451/Russ White, CCIE No. 2635/Stacia McKeeHow does a router switch a packet? What is the difference between routing a packet, switching a frame, and packet switching? What is the Cisco® Express Forwarding (CEF) feature referred to in Cisco documentation and commonly found in Cisco IOS® commands? CEF is a general term that describes the m...