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Internal WG Review: IP over DVB (ipdvb)
A new IETF working group is being considered in the Internet Area.
The draft charter for this working group is provided below for your review
and comment.
The IETF Secretariat
IP over DVB (ipdvb)
-------------------
Last Modified: 2003-10-13
Current Status: Proposed Working Group
IETF Area: Internet Area
Chair(s): Gorry Fairhurst (gorry@erg.abdn.ac.uk)
Responsible Area Director: Margaret Wasserman
Mailing Lists:
General Discussion:ip-dvb@erg.abdn.ac.uk
To subscribe: subscribe ip-dvb at majordomo@erg.abdn.ac.uk
Archive: http://www.erg.abdn.ac.uk/ip-dvb/archive/
Description of Working Group:
The MPEG-2 Transport Stream provides a transmission network that has become
widely use to support digital TV broadcast, including: DVB, ATSC, ISDB-T.
These, and related standards, define a set of commercially available
components that are increasingly being used to provide a general-purpose
packet transmission network. MPEG-2 Transport networks are being used to
build IP networks to supplement broadcast TV/audio services and also provide
one-way and two-way IP-only subnetworks.
There is a need to define an efficient standardised encapsulation for IPv4
and IPv6 datagrams, and to recommend procedures for supporting protocols.
Examples include dynamic address resolution, multicast group membership
reporting and possibly management information tables and MIBs. Documents
will be defined that describe protocols required to build a complete
IPv4/IPv6 unicast/multicast services, and the mappings required to perform
dynamic address resolution. The primary purpose of this working group is to
develop a set of Internet Drafts and where appropriate to progress these as
either Internet Informational RFCs or Standards track RFCs.
The current list of work items is:
1. Issue an Internet Draft specifying Requirements and Framework for
supporting IP services via MPEG-2 transmission networks. Such requirements
should consider the range of platforms currently (or anticipated to be) in
use. This draft will be submitted to the IESG for possible publication as
an Informational RFC.
2. The working group will investigate and design an efficient encapsulation
method for IPv4/IPv6, and advance this via the IESG to a standards-track
RFC. The design needs to consider the need for MAC addresses, the potential
need for synchronisation between streams, support for IPv6 and multicast
services, and support for multiple gateways (feeds).
3. The working group will consider the options for unicast and multicast
address resolution. A working group Internet Draft will define a framework
and recommend appropriate address resolution mechanisms for IPv4 and IPv6
using both the existing Multi-Protocol Encapsulation and any new
encapsulation developed by the working group. Consideration will be paid to
existing standards, and the cases for IPv6 and IPv4 will be described. This
document will be submitted to the IESG for publication as an Informational
RFC.
4. A working group Internet Draft will be written to recommend a set of
dynamic address resolution procedures for IPv6. It will describe the
protocol and syntax of the information exchanged. This work may be based on
an extension to the Neighbor Discovery (ND) protocol to support MPEG-2
transmission, and include specific optimisations for broadcast networks.
This document will be submitted to the IESG for publication as a
standards-track RFC.
5. If there is a need for further supporting protocols, it will consider a
possible recharter under the guidance of the IESG. Examples in this area
include, the negotiation/association of IP QoS with MPEG-2 transport
streams, address resolution for IPv4, and the need for SNMP MIBs.
Goals and Milestones:
Nov 2003 Issue a working group Architecture ID
Nov 2003 Issue a working group Encapsulation ID
Mar 2004 Review Encapsulation ID
Mar 2004 Review Architecture ID
Mar 2004 Issue a working group Address Resolution (AR) Framework ID
Jun 2004 Submit Architecture ID to IESG for consideration as a INFO RFC
Jun 2004 Submit Encapsulation ID to IESG for consideration as a STD RFC
Jun 2004 Review Address Resolution Framework ID
Jun 2004 Issue a working group AR Protocol ID
Sep 2004 Review AR Protocol ID
Dec 2005 Submit Address Resolution Framework ID to IESG for
consideration as an INFO RFC.
Dec 2005 Submit the AR Protocol ID to IESG for consideration as
an INFO RFC.
Dec 2005 Progress STD RFCs along standards track process.
Dec 2005 Possible recharter to investigate MIBs,
and other protocol components (if required).