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Re: [SCTP-Discussion] sctp_send() with large data


Chronological Thread 
  • From: Michael Tuexen <Michael.Tuexen AT micmac.franken.de>
  • To: Thomas Dreibholz <dreibh AT iem.uni-due.de>
  • Cc: sctp-discussion AT sctp.de
  • Subject: Re: [SCTP-Discussion] sctp_send() with large data
  • Date: Thu, 23 Oct 2008 17:04:20 +0200
  • List-archive: <http://lists.franken.de/pipermail/sctp-discussion>
  • List-id: SCTP Discussions <sctp-discussion.sctp.de>

On Oct 23, 2008, at 12:57 PM, Thomas Dreibholz wrote:

On Sonntag 19 Oktober 2008, Sunghwan Ihm wrote:
Hi Michael,

Thank you for your quick response. I googled "sctplib partial
delivery" and I found that the issue was already mentioned in this
list back in 2002. Maybe I should change my code to issue sctp_send()
with small messages, and have the receiver side to reassemble the
original large message. But it would be definitely helpful if
sctp_send() returns an appropriate error message when the message is
larger than the receiver window, and the receiver is unable to send
it. (Even sendFailureNotif() callback was not called.) Anyway I really
appreciate your help again.

May be you could provide us a patch for the sctplib code under sctplib/sctp/
which provides this functionality? I think this would be a useful change and
we could include it into the next release version.
I think the suggestion is wrong. It is not a sender problem, it is a
receiver problem. It would be OK if the receiver would abort the association.
Sending messages larger than the peer window is OK...



Best regards
--
= ======================================================================
Dr. Thomas Dreibholz

University of Duisburg-Essen, Room ES210
Inst. for Experimental Mathematics Ellernstraße 29
Computer Networking Technology Group D-45326 Essen/Germany
-----------------------------------------------------------------------
E-Mail:
dreibh AT iem.uni-due.de
Homepage: http://www.iem.uni-due.de/~dreibh
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