How Windows Live Msngr really works !

Discussion in 'Tutorials' started by anandk, Dec 28, 2006.

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  1. anandk

    anandk Distinguished Member

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    How Windows Live Msngr really works !

    1. The user starts the session by double clicking a contact.
    2. The user’s Windows Live ID credentials are sent across to the Windows Live ID Credentials server for further verification
    3. The information is passed through a incoming only firewall to the dispatch server. This is the first point of connection for the message being sent.
    4. Depending where the user is in the world, a connection will be made to the local notification server. There are main ones in Singapore, Dublic, Redmond and Reading. This keeps the connection between the two users alive, and keeps things updated such as user status, chat requests and email notifications from Windows Live Mail/Hotmail.
    5. The message itself doesn’t go near the notification servers - it is passed onto the switchboard server which is the where all the messages and files are exchanged. The user starting the chat can talk to one user, whilst using another switchboard session to talk to someone else, and another switchboard session for someone else still - without even knowing it. Invitations, file transfers and video/voice chat are also sent through here.
    6. The information is then relayed back through an outgoing firewall and checks the user is still online. If the user is offline by the time the message is ready to be received, then it’ll bounce back and be saved on the switchboard session until the user logs back on again. If they are online, they will receive the message.

    This is all done in the space of around 2 seconds...[​IMG]

    great info here at http://www.msblog.org/2006/12/27/who-wants-to-know-how-windows-live-messenger-actually-works/
     
    ketanbodas likes this.
  2. hemant_mathur

    hemant_mathur -- No Easter Eggs here --

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    Nice info
     
  3. iMav

    iMav The Devil's Advocate

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    hummm ... now i know y sometimes my status doesnt change instantly ... redmond ko thode time ke baad pata chalta hai ... propogation delay
     
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