glossary

C

Cache Engine

A device that stores objects being downloaded from the web for future use by the host.

Cache Engine cluster

A collection of Cache Engines that is controlled by one or more routers.

Cisco Express Forwarding (CEF)

A scalable, distributed, Layer 3 switching solution designed to meet performance requirements of the Internet and enterprise networks.

H

hash buckets

A pool of IP addresses to which individual servers are mapped.

R

reverse proxy service

A service that duplicates network content and distributes it across a small number of destination World Wide Web servers.

S

service group

A subset of Cache Engines within a cluster and routers connected to the cluster that are running the same service, either web cache or reverse proxy.

V

view

A list of addresses of the Cache Engines and routers in the service group.

W

WCCP Version 1

A protocol that allows you to use a Cache Engine to handle World Wide Web traffic, thus reducing transmission costs and downloading time. The Cache Engines in the cluster can be mapped to only one router.

WCCP Version 2

A protocol that allows you to use a Cache Engine to handle World Wide Web traffic and other services in a similar manner to WCCP Version 1. Specified services can be mapped to multiple routers.

web cache service

A service that handles large collections of destination World Wide Web servers with various IP addresses throughout the network. The network content, rather than being duplicated across all Cache Engines, is assigned to a particular Cache Engine.