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- Network Working Group R. Skelton
- Request for Comments: 1673 EPRI
- Category: Informational August 1994
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- Electric Power Research Institute Comments on IPng
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- Status of this Memo
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- 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.
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- 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.
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- 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
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- Skelton [Page 1]
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- RFC 1673 EPRI Comments on IPng August 1994
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- international standards.
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- 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.
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- 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.
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- 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.
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- 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.
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- Skelton [Page 2]
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- RFC 1673 EPRI Comments on IPng August 1994
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- - 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.
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- Skelton [Page 3]
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- RFC 1673 EPRI Comments on IPng August 1994
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- Security Considerations
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- 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
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- EMail: RSKELTON@msm.epri.com
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- Skelton [Page 4]
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