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Pierre,

if you send an INIT with an Adler-32 to the instance expecting a CRC-32c message, it will
detect a CRC error and silently discard the message. So you do not see an ABORT.

It really looks like you have two SCTP implementations running: Are you running two
program on the host using the sctplib?

Best regards
Michael

On Jun 9, 2006, at 9:52 AM, ALLEGRET PILAUD Pierre RD-CORE-ISS wrote:

Brian,

It is why I don't understand. I change with ADLER all comes OK. I don't see anything wrong in the INIT message. LKSCTP is "SCTP module" so it is not loaded in the LINUX core.
I performed the same tests two years ago and it was the same.

Regards.

Pierre

-----Message d'origine-----
De : Brian F. G. Bidulock
[mailto:bidulock AT openss7.org]
Envoyé : vendredi 9 juin 2006 09:35
À : ALLEGRET PILAUD Pierre RD-CORE-ISS
Cc :
discussion AT sctp.de
Objet : Re: [SCTP-Discussion] Problem with CRC32

Pierre,

On Fri, 09 Jun 2006, ALLEGRET PILAUD Pierre RD-CORE-ISS wrote:

sctplib S.U.T.

<---------------------- INIT

ABORT ----------------------->

INIT_ACK -------------------->


I don't understand why sctplib send ABORT. With Ethereal traces, I
don't see any trouble. Have you an idea ?

(If I perform the same tests with SCTP Linux kernel all works fine)

Are you sure that sctplib is sending the ABORT and not, say, lksctp running on the same host?

--brian


--
Brian F. G. Bidulock ¦ The reasonable man adapts himself to the ¦
bidulock AT openss7.org
¦ world; the unreasonable one persists in ¦
http://www.openss7.org/ ¦ trying to adapt the world to himself. ¦
¦ Therefore all progress depends on the ¦
¦ unreasonable man. -- George Bernard Shaw ¦
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• [SCTP-Discussion] Problem with CRC32, ALLEGRET PILAUD Pierre RD-CORE-ISS, 06/09/2006
  • Re: [SCTP-Discussion] Problem with CRC32, Brian F. G. Bidulock, 06/09/2006
  • Re: [SCTP-Discussion] Problem with CRC32, Michael Tuexen, 06/09/2006
  • <Possible follow-up(s)>
  • RE: [SCTP-Discussion] Problem with CRC32, ALLEGRET PILAUD Pierre RD-CORE-ISS, 06/09/2006
    • Re: [SCTP-Discussion] Problem with CRC32, Michael Tuexen, 06/09/2006
    • Re: [SCTP-Discussion] Problem with CRC32, Brian F. G. Bidulock, 06/09/2006
  • RE: [SCTP-Discussion] Problem with CRC32, ALLEGRET PILAUD Pierre RD-CORE-ISS, 06/09/2006
    • Re: [SCTP-Discussion] Problem with CRC32, Brian F. G. Bidulock, 06/09/2006

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