Re: Réf. : Re: IPDVB Provisional Agenda (IETF-75)

Bernhard Collini-Nocker <bnocker@cosy.sbg.ac.at> Tue, 07 July 2009 13:48 UTC

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Date: Tue, 7 Jul 2009 15:25:59 +0200 (CEST)
From: Bernhard Collini-Nocker <bnocker@cosy.sbg.ac.at>
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Subject: =?ISO-8859-1?Q?Re:_R=E9f._:_Re:_IPDVB_Provisional_Agenda_=28IETF?= =?ISO-8859-1?Q?-75=29?=
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On Tue, 7 Jul 2009, Marie-Jose Montpetit wrote:
> Do you mean a complete revamp like in clean slate or just accepting that 
> satellite networks are "just another network" and adopt something done 
> elsewhere in 3GPP or TISPAN?

Perhaps I miss an important detail, but do 3GPP or TISPAN deal with 
and/or support rx-only devices and boot-strapping of those?

> /mjm

--Bernhard

> On Jul 7, 2009, at 5:36 AM, cedric.baudoin@thalesaleniaspace.com wrote:
>
>> 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>
>> 
>> 
>> <ecblank.gif>
>> <ecblank.gif>
>> 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
>> 
>> <ecblank.gif>
>> 
>> 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)
>>> 
>> 
>> 
>> 
>> 
>> 
>> 
>> 
>
> Marie-Jose Montpetit
> marie@mjmontpetit.com
>
>
>