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Dear Oon Heok,

in version 19, the ForwardTSN support is old and broken.
Only the next release will contain a corrected version
of Forward TSN, as per
http://www.ietf.org/internet-drafts/draft-stewart-tsvwg-prsctp-01.txt
along with a working version of the AS-CONF feature.

However, I do not expect that to be released before
the end of the year.

Best regards,
Andreas

On Wednesday 11 December 2002 04:37, Oon Heok Kee wrote:
> Hi,
>
> I'm using sctplib pre19, with socketapi-1.0.0. I'm trying to use the
> unreliable sctp portion, by assigning
> sinfo_timetolive=(unsigned int)5;
>
> A generic case is:
>
> sender receiver
> TSN(5)|------------>|
>
> |<------------|SACK(2)
> |<------------|SACK(4)
>
> FWD_TSN(5)|------------>|
>
> |<------------|SACK(5)
>
> When something like this happens, data just stops flowing. Sometimes,
> receiver sends SACK(5) twice, with no indication of dup TSNs or gaps.
> HEARTBEATs are then sent. Basically, as long as a SACK with the same TSN
> follows the FORWARD TSN, data stops flowing.
>
> When I set
> sinfo_timetolive=(unsigned int)-1;
> things seem to work fine.
>
> Hope my illustration is clear. And can someone enlighten me on what's
> wrong? Thanks!!! :)
>
>
>
> Oon, Heok Kee
>
>
>
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• [SCTP-Discussion] Forward TSN, then stopped..., Oon Heok Kee, 12/11/2002
  • Re: [SCTP-Discussion] Forward TSN, then stopped..., Michael Tüxen, 12/11/2002
  • Re: [SCTP-Discussion] Forward TSN, then stopped..., Andreas Jungmaier, 12/11/2002

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