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Hi Yinghan,

see my comments in-line.

Best regards
Michael

On Jun 14, 2005, at 8:01 AM, Yinghan Yang wrote:

Hi Michael,

Thanks for responding. So if an application employs multiple streams
(for multiple data objects),would it just have to know if a piece of
data belongs to a certain object (so that a consistent stream is used
for an object) before the send?. Thanks alot again.

That is correct.

Yinghan

P.S. From what I understand, the chunk length is encoded as part of
the packet, but the packet length is dependent on the MTU size. So the
packet length implicitly obtained from teh MTU?

The user provides user data of a given length to SCTP. Depending of
the MTU SCPT might has to perform a segmentation to put it into
chunks smaller than the MTU. But if the user provides data which
is smaller than the MTU (and header, SACK), then segmentation is not
performed.

On 6/14/05, Michael Tuexen
<Michael.Tuexen AT micmac.franken.de>
wrote:

Hi Yinghan,

see my comments in-line.

Best regards
Michael

On Jun 14, 2005, at 6:17 AM, Yinghan Yang wrote:

Hi,

Just wondering: In SCTP, is the packet length stored somewhere
(application layer perhaps?) ? Also, when data from an app is ready to

No in the transport layer ... in SCTP to be precise.

be sent, how does the application know which stream to use? Thanks.

That is up to the application. It choses the stream. SCTP just does
what the application wants.

Regards,
Yinghan
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• [SCTP-Discussion] packet length and stream, Yinghan Yang, 06/14/2005
  • Re: [SCTP-Discussion] packet length and stream, Michael Tuexen, 06/14/2005
    • Re: [SCTP-Discussion] packet length and stream, Yinghan Yang, 06/14/2005
      • Re: [SCTP-Discussion] packet length and stream, Michael Tuexen, 06/14/2005

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