Hi all
This is a really important topic. I do agree that a complete
revamp of the signaling is a key point if we want to improve the
interoperability and to address "all IP satcom systems" (or at
least IP friendly ;-) )
Best regards
Cédric Baudoin
<graycol.gif>Bernhard Collini-Nocker <bnocker@cosy.sbg.ac.at>
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Bernhard Collini-Nocker <bnocker@cosy.sbg.ac.at>
Envoyé par : owner-ipdvb@erg.abdn.ac.uk
07/07/2009 09:00
Veuillez répondre à ipdvb
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Pour : ipdvb@erg.abdn.ac.uk
cc : Objet : Re: IPDVB Provisional Agenda (IETF-75)
Dear all,
in my opinion there is a need to get rid of the transport stream
encapsulated PSI/SI sections/tables in the second generation DVB
systems
for signaling purposes, especially in those cases where only Generic
Stream Encapsulation is being used. Essentially there are two
kinds of
signaling, one for physical link and network properties, and the
other
one for services. The latter one is well addressed by all those
parties
interested in AV/TV/... over IP, whereas the first one is still delt
with so-called backward compatibility mode (so TS encapsulated
signaling
sections). Although ULE/GSE provide an extension header for
carrying TS
packets, this is a suboptimal choice given that any kind of
signaling
shall support unidirectional mode of operation and boot strapping of
rx-only devices.
This is not to propose a solution rather than to point out that
there is
standardisation work needed in this area. Whether it fits in the
ipdvb
agenda is to be discussed.
Best wishes,
Bernhard
Gorry Fairhurst schrieb:
Can I remind the group that if people think the ipdvb working group
should continue, then they need to tell Martin and me some
important
topics that need to be addressed - please send email to us or the
list.
If anyone would like to use a few slides to talk about topics
that are
important, please let me know, and we can allocate some agenda
time.
The provisional agenda is at:
http://www.ietf.org/proceedings/09jul/agenda/ipdvb.txt
Best wishes,
Gorry Fairhurst
(ipdvb Chair)