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Re: [SCTP-Discussion] Doubt on congestion avoidance


Chronological Thread 
  • From: Michael Tuexen <Michael.Tuexen AT micmac.franken.de>
  • To: Mohammad Belgaumkar <Mohammad.Belgaumkar AT lntinfotech.com>
  • Cc: sctp-discussion AT sctp.de
  • Subject: Re: [SCTP-Discussion] Doubt on congestion avoidance
  • Date: Wed, 6 Aug 2008 15:19:06 +0200
  • List-archive: <http://lists.franken.de/pipermail/sctp-discussion>
  • List-id: SCTP Discussions <sctp-discussion.sctp.de>
Hi Mohammad,

comments in-line.

Best regards
Michael

On Aug 6, 2008, at 1:17 PM, Mohammad Belgaumkar wrote:


Hi,
I have a doubt regarding congestion avoidance in SCTP.
If SCTP module is in congestion avoidance phase, should it avoid sending of
all the messages it receives from application?
The SCTP stack can send as much user data as the congestion window and
the receiver window allows.

I mean to say the sending of messages to peer should resume only once the
SCTP reaches slow start phase?
It does not matter whether the stack is in slow start or congestion
avoidance, it can send as much as the window allows. The slow start
or congestion window only describes how the congestion window is
modified, not how it is used.


Is sending of data chunks prohibited in congestion avoidance phase?
Sure, when it is allowed by the congestion window.


Any reply on these matter is very helpful

thanks in advance
Regards
Mohammad Arif Belgaumkar
L&T Infotech Ltd,
Whitefield,
Bangalore - 66
Ph - 91-80-66242424 extn 2018

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