Internetworking Over NBMA (ion)
-------------------------------

 Charter
 Last Modified: 06/15/2000

 Current Status: Concluded Working Group

 Chair(s):
     A Malis  <Andy.Malis@vivacenetworks.com>

 Internet Area Director(s):
     Thomas Narten  <narten@us.ibm.com>
     Erik Nordmark  <erik.nordmark@sun.com>

 Internet Area Advisor:
     Erik Nordmark  <erik.nordmark@sun.com>

 Mailing Lists: 
     General Discussion:ion@sunroof.eng.sun.com
     To Subscribe:      majordomo@sunroof.eng.sun.com
         In Body:       In Body: subscribe ion
     Archive:           ftp://ftp.ietf.org/ietf-mail-archive/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:

   Done         Begin work on internetworking over Frame Relay SVCs (RFC 
                1490 extension), using NHRP for address resolution. 

   Done         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. 

   Done         IAB and IESG review of WG Status, and plans. This meeting 
                will be scheduled to occur during SIGCOMM '96. 

   Done         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 

   Done         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. 

   JAN 98       Update for RFC1490 (to be submitted as Standard) 

   JAN 98       Update for RFC1293 (to be submitted as Draft Standard) 

   FEB 98       Submit IPv6 over NBMA, ATM, and FR drafts to IESG for 
                consideration as a Proposed Standard. 

   FEB 98       Submit Distributed MARS Service Using SCSP to IESG for 
                consideration as an Informational RFC. 

   FEB 98       Submit NHRP MIB to IESG for consideration as a Proposed 
                Standard. 

   MAR 98       Submit ILMI-Based Server Discovery for ATMARP to IESG for 
                consideration as a Proposed Standard. 

   MAR 98       Submit ILMI-Based Server Discovery for MARS to IESG for 
                consideration as a Proposed Standard. 

   MAR 98       Submit ILMI-Based Server Discovery for NHRP to IESG for 
                consideration as a Proposed Standard. 

   MAR 98       Submit Intra-area Unicast based upon OSPF ARA to IESG for 
                consideration as a Proposed Standard. 

   MAR 98       Submit Ion Security I-D to IESG for consideration as a 
                Proposed Standard. 

   NOV 98       NHRP client guidelines 

   NOV 98       Use of Proxy PAR 

   NOV 98       Router-Router NHRP 

   DEC 98       CLOSE DOWN WORKING GROUP 


 Internet-Drafts:

  No Current Internet-Drafts.

 Request For Comments:

  RFC   Stat Published     Title
------- -- ----------- ------------------------------------
RFC2121 I    MAR 97    Issues affecting MARS Cluster Size 

RFC2149 I    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 

RFC2269 I    JAN 98    Using the MARS model in non-ATM NBMA networks. 

RFC2320 PS   APR 98    Definitions of Managed Objects for Classical IP and 
                       ARP Over ATM Using SMIv2 (IPOA-MIB) 

RFC2225 PS   APR 98    Classical IP and ARP over ATM 

RFC2335 PS   APR 98    A Distributed NHRP Service Using SCSP 

RFC2331 PS   APR 98    ATM Signalling Support for IP over ATM - UNI 
                       Signalling 4.0 Update 

RFC2334 PS   APR 98    Server Cache Synchronization Protocol (SCSP) 

RFC2333 PS   APR 98    NHRP Protocol Applicability Statement 

RFC2332 PS   APR 98    NBMA Next Hop Resolution Protocol (NHRP) 

RFC2337 E    MAY 98    Intra-LIS IP multicast among routers over ATM using 
                       Sparse Mode PIM 

RFC2366 PS   JUL 98    Definitions of Managed Objects for Multicast over 
                       UNI 3.0/3.1 based ATM Networks 

RFC2336 I    JUL 98    Classical IP to NHRP Transition 

RFC2390 DS   SEP 98    Inverse Address Resolution Protocol 

RFC2417 PS   SEP 98    Definitions of Managed Objects for Multicast over 
                       UNI 3.0/3.1 based ATM Networks 

RFC2427Standard  SEP 98    Multiprotocol Interconnect over Frame Relay 

RFC2443 E    NOV 98    A Distributed MARS Service Using SCSP 

RFC2491 PS   JAN 99    IPv6 over Non-Broadcast Multiple Access (NBMA) 
                       networks 

RFC2492 PS   JAN 99    IPv6 over ATM Networks 

RFC2520 E    FEB 99    NHRP with Mobile NHCs 

RFC2583 I    MAY 99    Guidelines for Next Hop Client (NHC) Developers 

RFC2590 PS   JUN 99    Transmission of IPv6 Packets over Frame Relay 
                       Networks Specification 

RFC2603 PS   JUN 99    ILMI-Based Server Discovery for NHRP 

RFC2602 PS   JUN 99    ILMI-Based Server Discovery for MARS 

RFC2601 PS   JUN 99    ILMI-Based Server Discovery for ATMARP 

RFC2677 PS   SEP 99    Definitions of Managed Objects for the NBMA Next Hop 
                       Resolution Protocol (NHRP) 

RFC2684 PS   SEP 99    Multiprotocol Encapsulation over ATM Adaptation 
                       Layer 5 

RFC2685 PS   SEP 99    Virtual Private Networks Identifier 

RFC2735 PS   DEC 99    NHRP Support for Virtual Private Networks 

RFC2843 I    JUN 00    Proxy PAR