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Peter Saint-Andre 2012-05-22 14:54:47 -06:00
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<li>Stream Resumption -- the ability to quickly resume a stream that has been terminated.</li>
</ul>
<p>Stream management implements these features using short XML elements at the root stream level. These elements are not "stanzas" in the XMPP sense (i.e., not &IQ;, &MESSAGE;, or &PRESENCE; stanzas as defined in <cite>RFC 6120</cite>) and are not counted or acked in stream management, since they exist for the purpose of managing stanzas themselves.</p>
<p>Stream management is used at the level of an XML stream. To check TCP connectivity underneath a given stream, it is RECOMMENDED to use whitespace keepalives (see <cite>RFC 6120</cite>), &xep0199;, or TCP keepalives. By constrast with stream management, &xep0079; and &xep0184; define acks that are sent end-to-end over multiple streams; these facilities are useful in special scenarios but are unnecessary for checking of a direct stream between two XMPP entities.</p>
<p>Stream management is used at the level of an XML stream. To check TCP connectivity underneath a given stream, it is RECOMMENDED to use whitespace keepalives (see <cite>RFC 6120</cite>), &xep0199;, or TCP keepalives. By contrast with stream management, &xep0079; and &xep0184; define acks that are sent end-to-end over multiple streams; these facilities are useful in special scenarios but are unnecessary for checking of a direct stream between two XMPP entities.</p>
<p>Note: Stream Management can be used for server-to-server streams as well as for client-to-server streams. However, for convenience this specification discusses client-to-server streams only. The same principles apply to server-to-server streams. (In this document, examples prepended by "C:" are sent by a client and examples prepended by "S:" are sent by a server.)</p>
</section1>