Cisco Systems 3750E manual Configuring Web Cache Services By Using, Understanding Wccp, 41-1

C H A P T E R 41

Configuring Web Cache Services By Using

WCCP

This chapter describes how to configure your Catalyst 3750-E or 3560-E 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 or the stack master must be running the IP services feature set.

Unless otherwise noted, the term switch refers to a Catalyst 3750-E or 3560-E standalone switch and to a Catalyst 3750-E switch stack.

Note 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.

This chapter consists of these sections:

•Understanding WCCP, page 41-1

•Configuring WCCP, page 41-5

•Monitoring and Maintaining WCCP, page 41-9

Understanding WCCP

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.

Catalyst 3750-E and 3560-E Switch Software Configuration Guide

OL-9775-02 41-1