ICP is a Web caching protocol used to exchange hints about the existence of URLs in neighbor caches. Caches exchange ICP queries and replies to gather information to use in selecting the most appropriate location from which to retrieve an object.

ICP Documentation

Implementation

The following products (and non-products) implement ICP:

Tools

Some tools for testing ICP

Related Stuff

These other inter-cache protocols and algorithms are an alternative to ICP.

Unrelated Stuff


Comments to wessels@ircache.net
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