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- X3S3.3/90-86R
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- 20 April, 1990
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- ACCREDITED STANDARDS COMMITTEE
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- X3 - INFORMATION PROCESSING SYSTEMS
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- Proposed
- Standards Development Project
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- INTERNET PROTOCOL (IP)
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- SECRETARIAT:
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- Computer and Business Equipment Manufacturers Association (CBEMA)
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- Page 2
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- 1 IDENTIFICATION OF PROPOSED PROJECT
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- 1.1 Title: INTERNET PROTOCOL
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- 1.2 Proposer: Task Group X3S3.3 (Network and Transport Layers)
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- A. Lyman Chapin, Chairman
- Data General Corporation
- 4400 Computer Drive
- Westborough, MA 01580
- (508) 870-6056
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- 1.3 Date Submitted: 20 April, 1990
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- Page 3
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- 2 JUSTIFICATION OF PROPOSED STANDARD
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- 2.1 Needs
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- The evolution of the Internet Protocol (universally referred to as
- "IP") began with the publication of the first version of the
- Transmission Control Protocol (TCP) in Request for Comment (RFC)
- number 675 by Vinton Cerf in 1974, the result of work that Cerf and
- Robert Kahn performed in 1973 as part of Kahn's Internet program at
- the DARPA Information Processing Techniques Office. In its ori-
- ginal form, TCP version 1 included the functions of both an
- end-to-end transport protocol and a connectionless internetwork
- protocol. Version 2 was published as Internet Experimental Note
- (IEN) 5 in 1977; Version 3 separated the transport and internetwork
- functions, retaining the transport functions in TCP and moving the
- internetwork functions to a new protocol, the Internet Protocol
- (IP). The IP Internet Standard was published as RFC 791 in 1981,
- and the US Department of Defense Military Standard for IP,
- MIL-STD-1777, was published in August 1983.
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- The widespread availability of IP after its incorporation into the
- University of California/Berkeley version of the Unix operating
- system in 1983 (release 4.2 of the Berkeley Software Distribution,
- commonly referred to as "4.2bsd") encouraged the development of
- many implementation improvements to IP. Current IP implementations
- represent a combination of the basic (RFC 791) internet standard,
- some or all of the extensions that have been documented since 1983
- (in, for example, RFCs 877, 894, 919, 922, 950, 1042, 1044, 1051,
- 1055, 1088, and 1103), and a set of agreements and conventions
- concerning the "best" way to implement IP functions and algorithms,
- now documented in RFC 1122, "Requirements for Internet Hosts",
- which consolidates in a single document the implementation practi-
- ces of the Internet community.
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- The need for an American National Standard for IP is based on the
- widespread market penetration and growing commercial importance of
- computer systems that use IP for host and network interconnection.
- Users and vendors would benefit greatly from a consolidated speci-
- fication of IP, drawn from the existing Internet Request for
- Comments (RFC) documentation, which could be used to evaluate the
- conformance of products that implement it and to place IP in a
- formal context in which its relationship to other standard proto-
- cols may be clearly established.
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- Page 4
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- 2.2 Recommended Scope of Standard
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- The proposed standard will specify IP as it is currently understood
- within the Internet engineering community. The scope of the
- proposed standards development project does not include the speci-
- fication of any function or feature that has not been accepted
- within the community that is currently implementing, deploying, and
- using IP.
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- 2.3 Existing Practice in Area of Proposed Standard
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- The proposed standard will formalize accepted existing practice,
- based on existing documentation, in which IP is used as the inter-
- network protocol in conjunction with other protocols that are
- generally referred to as the "TCP/IP protocol suite".
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- 2.4 Expected Stability of Proposed Standard
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- Technological advance in the area of internetwork protocols has
- been, and is expected to continue to be, very rapid. However, the
- architecture of IP and the closely-related Transmission Control
- Protocol is well understood and stable. New architectures for
- internetworking are likely to generate entirely new sets of
- standards, rather than destabilize the standard for IP.
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- 3 DESCRIPTION OF PROPOSED PROJECT
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- 3.1 Type of Document
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- The proposed development project will produce an American National
- Standard for Internet Protocol.
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- 3.2 Definitions of Concepts and Special Terms
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- Page 5
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- 3.3 Expected Relationship with Approved X3 Reference Models
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- The proposed standard will define a protocol that supports the
- internetworking (routing and relaying) functions and capabilities
- associated with the Network layer of the Open Systems Interconnec-
- tion Reference Model (ISO 7498) architecture. It will not,
- however, define an "OSI Network Layer Protocol".
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- 3.4 Recommended Program of Work
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- The program of work will consist of the preparation, from existing
- documentation concerning IP, of a document that captures all of the
- currently accepted IP practice, in a form that is as close to the
- existing internet documentation as the rules for the presentation
- of American National Standards permit.
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- 3.5 Resources
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- The resources of Task Group X3S3.3, Network and Transport Layers,
- are expected to be available to carry out the program of work.
- X3S3.3 has 26 voting members, representing a broad spectrum of
- users and suppliers of computer and communications equipment and
- services. The resources of the Internet Activities Board, which
- administers the internet standards that apply to the operation of
- the internet, and of the Internet Engineering Task Force, which is
- responsible for the technical specification of IP (and the other
- internet protocols), are also expected to be available.
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- 3.6 Recommended X3 Development Technical Committee
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- It is recommended that the proposed project, if approved, be
- assigned to Task Group X3S3.3, Network and Transport Layers, of X3
- Technical Committee X3S3, Data Communications. The proposed
- project is closely related, both technically and administratively,
- to projects 365 and 627, which have previously been assigned to
- X3S3.3.
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- 3.7 Anticipated Frequency and Duration of Meetings
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- If the proposed project is pursued by task group X3S3.3, as recom-
- mended above, it is anticipated that the equivalent of half a day
- during each of the task group's 6 five-day meetings each year will
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- Page 6
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- be devoted to work on the project.
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- 3.8 Target Date for dpANS to X3
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- A draft proposal for an American National Standard Internet Proto-
- col could be conveyed to X3 by October 1, 1990.
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- 3.9 Estimated Useful Life of Standard
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- The useful life of the proposed standard coincides with the useful
- life of the set of internet standards that comprise the "TCP/IP
- protocol suite". This lifetime is expected to be very long,
- spanning at least several decades.
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- 4 IMPLEMENTATION IMPACTS
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- 4.1 Impact on Existing User Practices and Investments
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- The proposed standard will formalize existing user practice in the
- area without modification. The impact of the proposed standard
- will therefore be limited to the salutary regularization of the
- documentation and points of reference for IP.
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- 4.2 Impact on Supplier Products and Support
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- As above; with the additional benefit that suppliers of products
- that implement or use IP will be able to focus their evaluation of
- IP standard compliance requirements on a single reference point.
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- 4.3 Techniques and Costs for Compliance Verification
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- Verification of compliance with the proposed standard will require
- the development of test purposes and test suites in accordance with
- ISO 9646, "OSI Conformance Testing Methodology and Framework". The
- cost of conformance testing is expected to be similar to the costs
- associated with OSI Internetwork protocol (ISO 8473) conformance
- testing.
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- Page 7
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- 4.4 Legal Considerations
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- No special legal issues are raised by the proposed project, which
- covers material that is non-proprietary and freely distributed.
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- 5 CLOSELY RELATED STANDARDS ACTIVITIES
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- 5.1 Existing Standards
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- The proposed project will formalize the existing internet standard
- for IP, for which the basic references are RFCs 791, 922, 950,
- 1112, and 1122.
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- 5.2 X3 Standards Development Projects
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- The proposed project is closely related to the work on the OSI
- internetwork protocol under X3 projects 365 and 627.
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- 5.3 X3/SPARC Study Groups
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- The proposed project has no relationship to any existing X3/SPARC
- Study Group.
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- 5.4 Other Related Domestic Standards Efforts
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- The internet standards effort pursued by the Internet Engineering
- Task Force and its parent organization, the Internet Activities
- Board, is and will continue to be the source of technical input to
- the process of developing an American National Standard for IP.
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- 5.5 ISO Standards Development Projects
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- There is no related ISO standards development project, and it is
- not anticipated that the proposed project will result in the
- initiation of any new work in ISO.
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- Page 8
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- 5.6 Other Related International Standards Development Projects
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- As above.
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- 5.7 Recommendations for Coordinating Liaison
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- None.
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- 5.8 Recommendations for Close Liaison
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- Close liaison, in the form of joint development work and/or joint
- meetings, with the Internet Activities Board and the Internet
- Engineering Task Force (and/or its appropriate working groups) will
- be essential.
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