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IETF RFC 1673

Electric Power Research Institute Comments on IPng

Last modified on Friday, August 5th, 1994

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Network Working Group                                         R. Skelton
Request for Comments: 1673                                          EPRI
Category: Informational                                    August 1994


           Electric Power Research Institute Comments on IPng

 Status of this Memo

   This memo provides information for the Internet community.  This memo
   does not specify an Internet standard of any kind.  Distribution of
   this memo is unlimited.

 Abstract

   This document was submitted to the IETF IPng area in response to RFC
   1550.  Publication of this document does not imply acceptance by the
   IPng area of any ideas expressed within.  Comments should be
   submitted to the big-internet@munnari.oz.au mailing list.

Executive Summary

   The question of the future of the Internet protocol (IP) is an issue
   of national if not international concern. It is critical to the
   building of a National Information Infrastructure, comparable to the
   adoption of basic standards for the industrial era such as railways,
   highways and electricity.

   The Electric Power Research Institute (EPRI) is a non-profit
   organization, with 700 voluntary utility members, managing a
   technical research and development program for the electric utility
   industry to improve power production, distribution and use. The
   electric power industry is a major user of computing and
   communications and is fully committed to open systems.

   While the industry is today a heavy user of the Internet Protocol
   Suite (IPS) it is following a long term strategy based on
   international standards developed by ISO and CCITT and national
   standards developed by the IEEE, ANSI and other standards bodies that
   employ formal review and voting procedures.

   This strategy is based on a survey of needs in all aspects of the
   electrical power supply enterprise.  It concluded that these needs
   are met more effectively by the current suite of OSI protocols and
   international standards under development. Therefore, EPRI developed
   the Utility Communications Architecture (UCA) specification for
   communications and the Database Access Integrated Services
   specification for data exchange both based on the OSI model and



Skelton                                                      PAGE 1 top


RFC 1673 EPRI Comments on IPng August 1994 international standards. These specifications have been incorporated into the Industry Government Open Systems Specification (IGOSS). They are receiving favorable response and application by the industry and its suppliers as well as the support of the natural gas and waterworks industries. The issues facing the Internet community concerning growth and the address and routing limitations of IP in particular, provide an ideal opportunity for creating the national uniform information transport superhighway. This is critical to the NII Agenda and the only proposal that will achieve this goal is one that is acceptable from both private and public sector viewpoints with both a national and an international perspective. EPRI also believes it is critically important that new requirements need to be achieved by convergence of efforts to develop additional standards. Security, directory services, network management, and the ability to support real-time applications are four examples of where new convergent standards efforts are required. Just as society could not in the past accept multiple standards for the gauge of the nation's railways, we can no longer accept multiple standards for information transport. Engineering Considerations 1. Mandatory Requirement. Inter networking must evolve to provide an industrial strength computing and communications environment for multiple uses of globally connected network resources. Specifically the underlying transport must provide high integrity support for upper layer industrial OSI applications including but not limited to MMS and TP. Use of interface layers such as RFC 1006 is not acceptable except as a transition strategy. 2. Basic Requirements. - Scaleability The addressing scheme must have essentially an unlimited address space to encompass an arbitrarily large number of information objects. Specifically it must solve the fundamental limitations of 32 bit formats, a format for 20 octets and above is considered suitable. Skelton PAGE 2 top

RFC 1673 EPRI Comments on IPng August 1994 - Routing table economy Network addressing must achieve significant economy in routing database size with very large networks. - Support for the existing Internet The existing internetworking paradigm and existing OSI and IPS applications are to be supported. 3. Key Engineering Considerations - A pragmatic solution. - Available now The solution must be available now using mature, internationally agreed standards and off-the-shelf implementations for hosts and routers. The solution must leverage existing investments in standards development, deployment and experience while at the same time provide for all basic requirements. - Ease of Transition Any solution must provide an evolutionary transition path using an OSI. - IP dual network layer strategy. This must be achievable without modifications to existing inter-domain routing protocols while providing the ability to support proprietary protocols such as IPX and Appletalk. The scheme must provide the ability to encompass other addressing schemes such as X.121 and E.164. Existing SNMP and CMIP MIBs must be applicable and available. Internet domain names need to be retained. - Routing effectiveness This key objective requires features such as route aggregation, service selection, and low frequency host advertisements; host routing intelligence should not be required. - Flexible Efficient Administration Operational needs will need to be met in an economic and flexible manner. Addressing allocations can be either geographically based or based on carrier ID or both and will be administered by policy not network topology. Simplified and robust configurability is required which includes the ability to identify resources e.g., multi-homed hosts and applications, instead of interfaces. - Mobility Dynamic addressing is required where hosts have the ability to learn their own network address with the minimum of human intervention. Skelton PAGE 3 top

RFC 1673 EPRI Comments on IPng August 1994 Security Considerations Security isses are not discussed in this memo. Author's Address Ron Skelton Member of Technical Staff Advanced IT Group Electric Power Research Institute Palo Alto CA 94303 EMail: RSKELTON@msm.epri.com Skelton PAGE 4 top

Electric Power Research Institute Comments on IPng RFC TOTAL SIZE: 7476 bytes PUBLICATION DATE: Friday, August 5th, 1994 LEGAL RIGHTS: The IETF Trust (see BCP 78)


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