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Re: Nature of Application Protocols!

From: Martin Duerst <duerst@w3.org>
Date: Thu, 29 Aug 2002 16:56:39 +0900
Message-Id: <4.2.0.58.J.20020829165613.03c8f068@localhost>
To: "Naresh Agarwal" <nagarwal@in.firstrain.com>, <ietf-http-wg@w3.org>

HTTP is synchonous, but very much pull, not push.

Regards,    Martin.


At 12:39 02/08/29 +0530, Naresh Agarwal wrote:

>Hi
>
>I have some general questions regarding protocols.
>
>Every application protocol is -
>
>1)Synchronous or Asynchrnous
>2)Connection Less or Connection Oriented
>3)Push or Pull
>
>My understanding is that most of the protocols - HTTP, FTP, SMTP, POP, 
>IMAP etc. are "Syncronous", "Connection Less" and "Push" in nature.
>
>I could not find any protocol, which is widely used and is Asynchronus, 
>Connection Oriented and Pull in nature!
>
>Am i right or i'm missing something?
>
>Also does Synchrony and Pull, Asynchrony and Push are synonyms..i.e every 
>Synchronous protocol is Push and every Asynchronous protocol is Push..?
>
>Can somebody provide me with the explanation of above (if possible, with 
>examples)?
>
>thanks,
>regards,
>Naresh Agarwal
Received on Thursday, 29 August 2002 04:26:42 GMT

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