1.3 Overview

The Peer Content Caching and Retrieval: Hosted Cache Protocol provides a mechanism for clients to inform the hosted cache about segment availability. There are two primary roles:<1>

  • Client: The client informs the hosted cache that it has segments it can offer.

  • Hosted cache: The hosted cache gets the range of block hashes associated with the segment being offered, and then retrieves the blocks within the segment that it needs.