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| The TCP/IP model (RFC 1122) |
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| Application Layer |
| Transport Layer |
| Internet Layer |
| Link Layer |
Extensible Messaging and Presence Protocol (XMPP) (formerly named Jabber) is a protocol for instant messaging. It is inspired by XML.
It is different to most protocols because it is an open standard. This means that anybody who has a domain name and an internet connection can run their own server. Most of the software and the clients are open source.
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