There has been a significant amount of work within DVB in the last year working on DVB over IP. The group is called DVB-IPI. They have generated at least 4 documents for approval. These documents might be on their way to ETSI pretty soon.
The current chairman is Dr. Albert Stienstra of Philips (albert.stienstra@philips.com). His group has been coordinated with the DVB-GBS group which is in charge of the IP over DVB specification.
Narisa Chu
Motorola Broadband.
-----Original Message-----
From: Lloyd Wood [mailto:l.wood@eim.surrey.ac.uk]
Sent: Tuesday, July 23, 2002 12:14 PM
To: ip-dvb@erg.abdn.ac.uk
Subject: 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>