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Cisco Express Forwarding (CEF)

Introduction

Cisco's Express Forwarding (CEF) technology for IP is a scalable, distributed, layer 3 switching solution designed to meet the future performance requirements of the Internet and Enterprise networks. It represents the latest advance in Cisco IOSTM switching capabilities that includes NetFlowTM Switching and Distributed Switching. CEF is also a key component of Cisco's Tag Switching architecture.