Re: Query on SCTP

"Brian F. G. Bidulock" <[email protected]>
Newsgroups gmane.ietf.sigtran
Organization http://www.openss7.org/
Message-ID <[email protected]>
Saumitra.Prabhudesai,

I think that they are adequately described in the RFC.
Nevertheless, ...

[email protected] wrote:           (Sat, 23 Dec 2006 13:41:32)
> 
> Hello Everybody,
> 
> I want to know about following parameters in SCTP as per RFC 2960:
> 
> 1. TSN

A sequence number used to number each and every DATA chunk for an association.
Each new DATA chunk transmitted is given a unique, monotonically increasing
TSN value.

> 2. TSN Ack parameter

The cummulative acknowledgement of DATA chunks.  The TSN Ack point is the
point at which that and all previous TSNs have been successfully received by
a receiver.

> 3. Advertised Receiver Window Credit (a_rwnd) parameters

A flow control parameter used by a receiver to inform the sender of the amount
of receive buffer space that it has available (and to not to have outstanding
--that is, unacknowledged--more than that amount).

--brian

> 
> Can anybody please explain me the use of all these parameters in he SCTP
> packets?
> 
> Thanks and Regards,
> 
> (Embedded image moved to file: pic24084.jpg)


-- 
Brian F. G. Bidulock
[email protected]
http://www.openss7.org/
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