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- From: "Brian F. G. Bidulock" <bidulock AT openss7.org>
- To: Badhrinath Sampathkumar <badhrinath_s AT myrealbox.com>
- Cc: discussion AT sctp.de
- Subject: Re: [SCTP-Discussion] hi all!
- Date: Sat Apr 27 01:37:00 2002
- Dsn-notification-to: <bidulock AT openss7.org>
- List-id: SCTP Discussions <discussion.sctp.de>
- Organization: http://www.openss7.org/
Badhrinath,
On Fri, 26 Apr 2002, Badhrinath Sampathkumar wrote:
X---snip---X
>
> How are the streams and buffers related?That is, does each stream has
> a buffer space reseved for it?If not how is the common buffer managed.
An association has one buffer. Messages on any stream competes for buffer
space on a first-come-first-served basis.
>
> How are TSNs allocated in chunks across multiple streams.
TSNs are allocated on a per-association basis (and thus congestion control
is per-association as well). Streams complete for the congestion window
on a first-come-first-served basis.
This has been criticized before, however, if per-stream congestion and flow
controls are necessary, the SCTP ULP must implement them. There was a draft
at one time to include these in an SCTP extension; however, I believe that it
has been withdrawn in favor of application-level protocols.
--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 ¦
- [SCTP-Discussion] hi all!, Badhrinath Sampathkumar, 04/26/2002
- Re: [SCTP-Discussion] hi all!, Brian F. G. Bidulock, 04/27/2002
- [SCTP-Discussion] Random (?) Init-ACKs, Samuel R. Baskinger, 04/27/2002
- Re: [SCTP-Discussion] Random (?) Init-ACKs, Michael Tuexen, 04/27/2002
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