4.1 Version 1.0 Probe Message

  • Article

A client node in a branch office contacts a Peer Content Caching and Retrieval–capable content server to retrieve a webpage, http://vortex.example.com/sample.html. It receives a list of hashes that represent the indices of the content. The client then sends the following WSD Probe message.

 <?xml version="1.0" encoding="utf-8"?>
 <soap:Envelope xmlns:soap="http://www.w3.org/2003/05/soap-envelope"
   xmlns:wsa="http://schemas.xmlsoap.org/ws/2004/08/addressing"
   xmlns:wsd="http://schemas.xmlsoap.org/ws/2005/04/discovery" 
   xmlns:PeerDist=
 "http://schemas.microsoft.com/p2p/2007/09/PeerDistributionDiscovery">
   <soap:Header>
     <wsa:To>
       urn:schemas-xmlsoap-org:ws:2005:04:discovery
     </wsa:To>
     <wsa:Action>
       http://schemas.xmlsoap.org/ws/2005/04/discovery/Probe
     </wsa:Action>
     <wsa:MessageID>
       urn:uuid:91528b47-b96d-4e30-981f-308c0586926f
     </wsa:MessageID>
   </soap:Header>
   <soap:Body>
     <wsd:Probe>
       <wsd:Types>
         PeerDist:PeerDistData
       </wsd:Types>
       <wsd:Scopes 
                 MatchBy=
         "http://schemas.xmlsoap.org/ws/2005/04/discovery/strcmp0">
 0200000000000000000000000000000000000000000000000000000000000000000
 0000000000000000000000000000000000000000000000000000000000000
       </wsd:Scopes>
     </wsd:Probe>
   </soap:Body>
 </soap:Envelope>

The <Types> and <Scopes> elements contain the Discovery Protocol–specific values. The <Scopes> element in this example shows only one HoHoDk.