Internetworking Over NBMA (ion) ------------------------------- Charter Last Modified: 24-Oct-97 Current Status: Active Working Group Chair(s): A. Malis George Swallow Internet Area Director(s): Jeffrey Burgan Thomas Narten Internet Area Advisor: Jeffrey Burgan Mailing Lists: General Discussion:ion@nexen.com To Subscribe: ion-request@nexen.com In Body: In Body: subscribe Archive: ftp://ftp.nexen.com/pub/ion Description of Working Group: Note: This Working Group is jointly chartered by the Routing Area. The Routing Area Director: Joel Halpern (jhalpern@newbridge.com) Motivation The Internetworking Over NBMA Working Group was formed to combine the work of two previous working groups, IP Over ATM (ipatm) and Routing Over Large Clouds (rolc), because these two groups were often working very closely together on similar, if not identical, problems and solutions. The group will be evolutionary, not revolutionary; it will continue the work in the previous groups on the NBMA Next Hop Resolution Protocol (NHRP), IPv4 over ATM, and IPv6 over ATM. Description This WG will focus on the issues involved in internetworking network layer protocols over NBMA (non-broadcast multiple access) subnetwork technologies, such as ATM, Frame Relay, SMDS, and X.25 private and public networks. The group will endeavor to make all its solutions applicable to the entire range of network layer protocols and NBMA subnetworks. We recognize, however, that there will be cases where specific optimizations to IPv4, IPv6, and particular subnetwork technologies will result in better service to the user. The group will focus on protocols for encapsulation, multicasting, addressing, address resolution and neighbor discovery, interactions with and optimization of internetworking-layer routing protocols when run over NBMA subnetworks, and protocol-specific network management support, as appropriate. The working group will submit these protocols for standardization. The working group may also produce experimental and informational documents, including "Best Current Practices" guidelines, as required. For ATM, the WG will continue the ipatm WG's transition from the LIS model described in RFC 1577 to the generalized NHRP model developed by the rolc WG, including a transition plan for existing networks. The working group will coordinate its activities with the following other working groups: 1) Integrated Services over Specific Lower Layers (issll), for coordinating Quality of Service (QoS) issues and the implementation of IP integrated services capabilities (RSVP, the service models, etc.) over NBMA networks. 2) IP Next Generation (ipng), for IPv6 over ATM coordination. The working group will also coordinate its work with other relevant standards bodies (e.g., ATM Forum, Frame Relay Forum, ANSI T1S1, ITU-T) and make recommendations to these organizations regarding the requirements for IP internetworking where the current published subnetwork standards, practices, or functionality do not meet the needs of internetworking. The working group will not develop subnetwork layer standards. Goals and Milestones: May 96 Begin work on internetworking over Frame Relay SVCs (RFC 1490 extension), using NHRP for address resolution. Jun 96 Revise drafts on NHRP, 1577 revisions, server synchronization (applicable to both NHRP and ATMARP), multicast server and broadcast for ATM, IPv6 neighbor discovery, ATM UNI 4.0 signaling (RFC 1755 update), Classical IP and NHRP MIBs, NHRP applicability, ATMARP to NHRP transition plan, and router-router NHRP. Sep 96 IAB and IESG review of WG Status, and plans. This meeting will be scheduled to occur during SIGCOMM '96. Dec 96 Submit NHRP, RFC 1577 revisions, and server synchronization to the IESG as a Proposed Standard, complete the ATMARP to NHRP transition plan and NHRP applicability statement, revise drafts on multicast server and broadcast for ATM, IPv6 neighbor discovery, classical IP and NHRP MIBs, router-router NHRP, ATM UNI 4.0 signaling (RFC 1755 upd Mar 97 Submit IPv6 neighbor discovery, classical IP and NHRP MIBs, router-router NHRP, ATM UNI 4.0 signaling (RFC 1755 update), multicast server and broadcast for ATM, and NHRP for Frame Relay SVCs to the IESG. Done Publish the IP over ATM Framework document (now RFC 1932), submit the MARS draft to IESG as a Proposed Standard. Internet-Drafts: Posted Revised I-D Title ------ ------- ------------------------------------------ Mar 93 Sep 97 Management Information Base for Frame Relay DTEs Mar 93 Oct 97 NBMA Next Hop Resolution Protocol (NHRP) Mar 95 Jul 97 NHRP Protocol Applicability Statement Sep 95 Oct 97 Classical IP and ARP over ATM Nov 95 Jul 97 Definitions of Managed Objects for Classical IP and ARP Over ATM Using SMIv2 Feb 96 Oct 97 Server Cache Synchronization Protocol (SCSP) Mar 96 Oct 97 ATM Signalling Support for IP over ATM - UNI Signalling 4.0 Update Apr 96 New IPv6 over Non-Broadcast Multiple Access (NBMA) networks Jul 96 Jan 97 Definitions of Managed Objects for the NBMA Next Hop Resolution Protocol (NHRP) Jul 96 May 97 Multiprotocol Interconnect over Frame Relay Nov 96 May 97 Classical IP to NHRP Transition Nov 96 May 97 Inverse Address Resolution Protocol Nov 96 Sep 97 Definitions of Managed Objects for Multicast over UNI 3.0/3.1 based ATM Networks Feb 97 New NHRP for Destinations off the NBMA Subnetwork Feb 97 Aug 97 Intra-LIS IP multicast among routers over ATM using Sparse Mode PIM Apr 97 New A Distributed ATMARP Service Using SCSP Apr 97 Oct 97 A Distributed NHRP Service Using SCSP Jul 97 New ILMI-Based Server Discovery for ATMARP Jul 97 New ILMI-Based Server Discovery for MARS Jul 97 New A Distributed MARS Service Using SCSP Jul 97 New Intra-area IP unicast among routers over legacy ATM Aug 97 New ILMI-Based Server Discovery for NHRP Oct 97 New IPv6 over ATM Networks Request For Comments: RFC Stat Published Title ------- -- ---------- ----------------------------------------- RFC2121 Mar 97 Issues affecting MARS Cluster Size RFC2149 May 97 Multicast Server Architectures for MARS-based ATM multicasting. RFC2115 DS Sep 97 Management Information Base for Frame Relay DTEs Using SMIv2 RFC2226 PS Oct 97 IP Broadcast over ATM Networks