Cisco Systems 3560 사용자 설명서

This chapter describes how to configure your Catalyst 3560 switch to redirect traffic to wide-area 
application engines (such as the Cisco Cache Engine 550) by using the Web Cache Communication 
Protocol (WCCP). This software release supports only WCCP version 2 (WCCPv2).

WCCP is a Cisco-developed content-routing technology that you can use to integrate wide-area 
application engines—referred to as application engines—into your network infrastructure. The 
application engines transparently store frequently accessed content and then fulfill successive requests 
for the same content, eliminating repetitive transmissions of identical content from web servers. 
Application engines accelerate content delivery and ensure maximum scalability and availability of 
content. In a service-provider network, you can deploy the WCCP and application engine solution at the 
points of presence (POPs). In an enterprise network, you can deploy the WCCP and application engine 
solution at the regional site and the small branch office.

To use this feature, the switch must be running the IP services image (formerly known as the enhanced 
multilayer image [EMI]). 

For complete syntax and usage information for the commands used in this chapter, see the “WCCP 
Router Configuration Commands” section in the “System Management Commands” part of the Cisco 
IOS Configuration Fundamentals Command Reference, Release 12.2. Access this document from the 
Cisco.com page under Documentation > Cisco IOS Software > 12.2 Mainline > Command 
References.

This chapter consists of these sections:

The WCCP and Cisco cache engines (or other application engines running WCCP) localize traffic 
patterns in the network, enabling content requests to be fulfilled locally.