Re: Clarification On SCTP SSN And TSN
"Brian F. G. Bidulock" <[email protected]>
| Newsgroups | gmane.ietf.sigtran |
|---|---|
| Organization | http://www.openss7.org/ |
| Message-ID | <[email protected]> |
Saraswati,
Saraswati Bose wrote: (Tue, 25 Oct 2005 04:27:08)
>
> Hi Brian,
>
> Check the below scenario related to SCTP TSN and SSn filed
> values and suggest.
>
>
>
> Transmission mode:Ordered Delivery
>
> Client Server
>
> DATA CHUNK-1----------------->
>
> SSN=1, TSN=1
>
> <-------------------------------SACK Chunk Cum_TSN_ACK=1
>
> DATA CHUNK-2----------------->
> SSN=1, TSN=3
<-------------------------------ABORT
(duplicate SSN in same Stream)
This is a valid reply. There are others.
--brian
> <-------------------------------SACK Chunk Cum_TSN_ACK=1,
> Gap_Block=1(for TSN=2
>
> missing)
>
> DATA CHUNK-2----------------->
> SSN=2, TSN=2
> <-------------------------------SACK Chunk Cum_TSN_ACK=?,
> Gap_Block=?.
>
> --Saraswati.
--
Brian F. G. Bidulock
[email protected]
http://www.openss7.org/