The Motorola Proposal and ATSC A92 are very much in synch because we have worked through the North American Standards Committees (SCTE and ATSC) on the IP over DVB (MPEG) MAC_address_list descriptor. Motorola is in the process of writing a few use cases to facilitate discussions within DVB-GBS, to reflect different scenarios of data usage in MPEG: be it video associated or non-associated, as mentioned in my Requirements Presentation last July in DVB (which is also on your website.) The chair of DVB-GBS also suggested to invite you for a joint meeting or some sort. (I am acting like a liaison, reflector-based only, between GBS and IETF at the moment, I guess.)
We are contemplating additions of IPv6 and subnetwork address capability to the MAC_address_list descriptor and tables. Any stimulating discussions will be welcome!
Best regards,
Narisa Chu
Motorola Broadband
-----Original Message-----
From: Gorry Fairhurst [mailto:gorry@erg.abdn.ac.uk]
Sent: Thursday, April 11, 2002 7:18 AM
To: ip-dvb@erg.abdn.ac.uk
Subject: For Your info: ATSC A92
I thought it would be useful to draw to our attention the
recent addition of ATSC A92 - dealing with IP multicas,
although the document seems only to address IPv4, and only
addresses use of DSMCC.
Comments on relevance or otherwise and technical issues
will be welcome.
Gorry
I have uploaded a recent ATSC document for reference.
http://www.erg.abdn.ac.uk/users/gorry/ip-dvb/refs/
---
ATSC Standard: A92
Delivery of IP Multicast Sessions over ATSC Data Broadcast
31 January 2002
This standard specifies the delivery of IP Multicast sessions, the delivery
of data for describing the characteristics of a session, and usage of the
ATSC A/90 Data Broadcast Standard for IP Multicast.
This document defines a Standard for the asynchronous transmission of
Internet Protocols (IP) specifically including multicast addressing
compatible with the ATSC A/90 Data Broadcast Standard. This Standard assumes
the use of Session Description Protocol (SDP) as an integral
part of the IP Multicast-based Data Broadcast service. It is strongly
suggested that normative clauses that do not directly involve SDP be
retained in the case of IP Multicast-based Data Broadcast services that do
not include any SDP data, such as would be used for non-sessionbased IP
Multicast. This document focuses solely on the carriage of all information
using the DSMCC_addressable_section. Synchronous and synchronized carriage
of IP Multicast datagrams are not addressed by this document.