Maybe you should take a look at the activity of the DVB IPI group. I've attached to this mail the list of documents they've already produced. You should find valuable inputs from Tandberg (Transport of DVB Services over IP-based Networks Part 1: MPEG-2 Transport Streams). All docs are on the FTP server of DVB (ftp.dvb.org). (See attached file: IPI0000-000.xls) M. Haddad Lloyd Wood <l.wood@eim.surrey.ac.uk> on 23/07/2002 18:13:59 Veuillez répondre à ip-dvb@erg.abdn.ac.uk Pour : ip-dvb@erg.abdn.ac.uk cc : (ccc : Michael Haddad/ALCATEL-SPACE) Objet : reverse problem: carrying DVB over IP?
I'm looking at what I think is the inverse problem to the focus of
this list, but one that I think may still be of interest to the
intersection of the IP- and DVB-interest sets reading this.
The IETF PWE3 WG is looking at carriage of non-IP subnetwork protocols
and bitstreams over IP/MPLS, using L2TP and RTP to provide
timing/sequencing information:
http://www.ietf.org/html.charters/pwe3-charter.html
There's a lot of interest in this from service providers to
traditional TDM/Sonet types, who want to carry 'legacy' services
across their IP clouds as IP switching gets faster than everything
else. (There are a large number of competing individual drafts
describing how to handle bitstreams in PWE3 at present).
I've been wondering whether carrying an MPEG transport stream makes a
good fit with PWE3 - it's likely more tractable and better-specified
timingwise than a lot of the traditional TDM stuff, and would make
good use of the RTP sequencing/timing layer PWE3 is supposed to be
using/extending as well as fleshing out an obvious application of
point-to-multipoint functionality.
Would there be any use for this sort of thing in the DVB community?
You'll find one brief mention of MPEG transport streams in:
http://www.ietf.org/internet-drafts/draft-ietf-pwe3-protocol-layer-00.txt
[I understand Patrik Schnell is chairing the DVB IP Infrastructure
working group and therefore probably the most likely person to ask
about this, but mail to him at Nokia and his old uni account fails.]
thanks,
L.
<http://www.ee.surrey.ac.uk/Personal/L.Wood/><L.Wood@surrey.ac.uk>
Best regards / Sinceres salutations
Michael Haddad
Web : http://www.alcatel.com/space
ALCATEL SPACE INDUSTRIES
Telecommunications Systems and Networks Department -- System Engineer
Tel : 33(0)534354347 / Fax : 33(0)534356169
Porte : F2096 / E-Mail : Michael.Haddad@space.alcatel.fr
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