NOTE: This charter is a snapshot of that in effect at the time of the 38th IETF Meeting in Memphis, Tennessee. It may now be out-of-date.
Masuma Ahmed <mxa@terayon.com>
Mike St. John <stjohns@home.net>
Frank Kastenholz <kasten@ftp.com>
Jeffrey Burgan <jburgan@baynetworks.com>
General Discussion:ipcdn@terayon.com
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The goal of the IPCDN WG is to define how the Internet Protocol (IP) is to be supported on a Cable Television (CATV) Data Network. The working group will prepare a framework and requirements document describing a typical CATV infrastructure and how an IP based network might be architected to utilize this infrastructure. It will also address the service interface between IP and the CATV Data Network. The architecture document will discuss the technical details related to the differences between symmetric and asymmetric CATV Data Networks. A terms of reference document will also be published.
Currently, there are no standards available for supporting IP over a CATV Data Network. The IEEE 802.14 WG is chartered to specify the physical layer and data link layer protocols for the CATV Data Network. However, this does not address the issue of mapping higher level protocols onto the hybrid fiber coax (HFC) access networks. The IPCDN WG will define a specification of how IP is mapped onto HFC access networks. Both IPv4 and IPv6 will be addressed, although in separate documents. The following topics will be discussed: multicast, broadcast, address mapping and resolution (for IPv4) and neighbor discovery (for IPv6).
The IPCDN WG will also address issues related to network management, especially as they concern HFC access networks. It is expected that other services (i.e. DHCP, RSVP, IPSEC, etc.) will operate unmodified. In addition, depending on the capabilities provided by cable data network service, specific mappings of RSVP service classes to lower layer services might be desirable. If additional capabilities become necessary, these will be directed to the appropriate group.
The IPCDN WG will also keep informed on what other groups in the industry are doing as it relates to the work of this working group.
The WG is chartered to deliver the following set of documents:
· Informational RFCs covering the framework, architecture, requirements and terms of reference for Cable Data Networks. · An IPv4-over-HFC access network document covering the mapping of IP over RF channels, encapsulation and framing of IPv4 packets, IP to modem and/or PC address resolution, multicast, and broadcast. · An IPv6-over-HFC access network document covering the mapping of IP over RF channels , encapsulation and framing of IPv6 packets, IP to modem and/or PC address resolution, neighbor discovery, multicast, and broadcast. · A media-specific mib for managing HFC spectrum. · A mib for managing cable data network service including management of IP over cable data network.Goals and Milestones:
· IP Over Cable Data Network Service