2.2 Protocol Summary
The following table provides a comprehensive list of the member protocols for Content Caching and Retrieval.
|
Protocol name |
Description |
Short name |
|---|---|---|
|
Peer Content Caching and Retrieval: Content Identification |
Specifies a binary data structure that is used in the Content Caching and Retrieval. The primary role in Content Caching and Retrieval is content identification. |
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Peer Content Caching and Retrieval Discovery Protocol |
Specifies a multicast to discover and locate services that are based on the Web Services Dynamic Discovery (WS-Discovery) protocol [WS-Discovery]. There are two modes of operations in WS-Discovery: client-initiated probes and service-initiated announcements; both are sent through IP multicast to a predefined group. The primary role in Content Caching and Retrieval is content discovery. |
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Peer Content Caching and Retrieval: Retrieval Protocol |
Specifies the messages that are required to query peer-role servers or a hosted cache server for the availability of certain content and to retrieve the content. The primary role in Content Caching and Retrieval is content retrieval. |
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Peer Content Caching and Retrieval: Hosted Cache Protocol |
Specifies an HTTP/HTTPS-based mechanism for clients to notify a hosted cache server about the availability of content and for a hosted cache server to indicate interest in the content.<5> The primary role in Content Caching and Retrieval is content notification. |
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|
Peer Content Caching and Retrieval: HTTP Extensions |
Specifies a content encoding known as PeerDist that is used by an HTTP/1.1 client and an HTTP/1.1 server to communicate content to each other. The primary role in Content Caching and Retrieval is metadata (hash) retrieval. |
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|
Server Message Block (SMB) Version 2.1 Protocol |
Specifies a metadata retrieval mechanism. Version 2.1 of this protocol has enhancements to detect content caching-enabled shares and retrieval of metadata that is related to content caching. The primary role in Content Caching and Retrieval is metadata (hash) retrieval. |
The following table provides a comprehensive list of the member protocols of Content Caching and Retrieval. The member protocols are grouped according to their primary purpose.
|
Protocol name |
Group description |
Short name |
|---|---|---|
|
|
Metadata (Hash) Retrieval |
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|
Server Message Block (SMB) Version 2.1 Protocol |
SMB 2.1 and HTTP are the current protocols that are enabled for metadata retrieval. |
[MS-SMB2] |
|
Peer Content Caching and Retrieval: HTTP Extensions |
Specifies a content encoding known as PeerDist that is used by an HTTP/1.1 client and an HTTP/1.1 server to communicate content to each other. The primary role in Content Caching and Retrieval is metadata (hash) retrieval. |
[MS-PCCRTP] |
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|
File Retrieval |
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Server Message Block (SMB) Version 2.1 Protocol |
SMB2 version 2.1 and HTTP (as described in [MS-PCCRTP] specifies content encoding over HTTP) are the two protocols used for file retrieval that are content caching aware. |
[MS-SMB2] |
|
Peer Content Caching and Retrieval: HTTP Extensions |
Specifies a content encoding known as PeerDist that is used by an HTTP/1.1 client and an HTTP/1.1 server to communicate content to each other. The primary role in Content Caching and Retrieval is metadata (hash) retrieval. |
[MS-PCCRTP] |
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Content Identification |
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Peer Content Caching and Retrieval: Content Identification |
A binary data structure that is used for content identification. |
[MS-PCCRC] |
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Content Discovery |
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Peer Content Caching and Retrieval Discovery Protocol |
Based on the Web Services Dynamic Discovery (WS-Discovery) protocol [WS-Discovery]. There are two modes of operations in WS-Discovery: client-initiated probes and service-initiated announcements; both are sent through IP multicast to a predefined group. |
[MS-PCCRD] |
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|
Content Retrieval |
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Peer Content Caching and Retrieval: Retrieval Protocol |
Content in the form of blocks is transferred by using HTTP, with the message format, as described in [MS-PCCRR]. |
[MS-PCCRR] |
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Authentication |
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Transport Layer Security (TLS) |
Hosted server authentication uses HTTP/HTTPS for secure transport of hosted content, as described in [MS-PCHC].<6> [MS-TLSP] describes the Windows implementation of TLS. |
[MS-TLSP] |
|
RFC 4559 |
Client authentication, as described in [RFC4559]. When a hosted cache server is used, SPNEGO HTTP client authentication can be enabled. For more information on SPNEGO see [MS-SPNG] and [MS-NEGOEX]. |
[RFC4559] |