Difference between revisions of "RFC4048"
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Category: Informational April 2005 | Category: Informational April 2005 | ||
− | RFC 1888 Is Obsolete | + | [[RFC1888|RFC 1888]] Is Obsolete |
− | Status of This Memo | + | '''Status of This Memo''' |
This memo provides information for the Internet community. It does | This memo provides information for the Internet community. It does | ||
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memo is unlimited. | memo is unlimited. | ||
− | Copyright Notice | + | '''Copyright Notice''' |
Copyright (C) The Internet Society (2005). | Copyright (C) The Internet Society (2005). | ||
− | Abstract | + | '''Abstract''' |
− | This document recommends that RFC 1888, on Open Systems | + | This document recommends that [[RFC1888|RFC 1888]], on Open Systems |
Interconnection (OSI) Network Service Access Points (NSAPs) and IPv6, | Interconnection (OSI) Network Service Access Points (NSAPs) and IPv6, | ||
be reclassified as Historic, as most of it has no further value, | be reclassified as Historic, as most of it has no further value, | ||
apart from one section, which is faulty. | apart from one section, which is faulty. | ||
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− | |||
− | |||
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== Introduction == | == Introduction == | ||
− | [RFC1888] was published as an Experimental RFC in 1996, at an early | + | [[RFC1888]] was published as an Experimental RFC in 1996, at an early |
stage in the development of IPv6, when it appeared important to | stage in the development of IPv6, when it appeared important to | ||
consider usage of Open Systems Interconnection (OSI) addressing for | consider usage of Open Systems Interconnection (OSI) addressing for | ||
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expected. | expected. | ||
− | Additionally, Section 6 of [RFC1888] specifies a mapping of IPv6 | + | Additionally, Section 6 of [[RFC1888]] specifies a mapping of IPv6 |
addresses inside OSI NSAP addresses. This mapping has recently | addresses inside OSI NSAP addresses. This mapping has recently | ||
aroused some interest: for example, to allow IP addresses to be | aroused some interest: for example, to allow IP addresses to be | ||
expressed in an Asynchronous Transfer Mode (ATM) context. | expressed in an Asynchronous Transfer Mode (ATM) context. | ||
− | Unfortunately, Section 6 of [RFC1888] contains two errors in its | + | Unfortunately, Section 6 of [[RFC1888]] contains two errors in its |
usage of OSI Initial Domain Part (IDP) format: | usage of OSI Initial Domain Part (IDP) format: | ||
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the range 0000-1001". | the range 0000-1001". | ||
− | == Recommendation to Reclassify RFC 1888 == | + | == Recommendation to Reclassify [[RFC1888|RFC 1888]] == |
Due to the lack of use of one of the mappings, and to the errors in | Due to the lack of use of one of the mappings, and to the errors in | ||
the documentation of the other, this document recommends that the | the documentation of the other, this document recommends that the | ||
− | IESG reclassify [RFC1888] as Historic. | + | IESG reclassify [[RFC1888]] as Historic. |
It is assumed that parties who wish to use a mapping of IPv6 | It is assumed that parties who wish to use a mapping of IPv6 | ||
addresses inside OSI NSAP addresses will correct, augment, and | addresses inside OSI NSAP addresses will correct, augment, and | ||
− | resubmit Section 6 of [RFC1888] as a separate document. | + | resubmit Section 6 of [[RFC1888]] as a separate document. |
== Security Considerations == | == Security Considerations == | ||
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IANA has marked the IPv6 address prefix 0000 001, reserved for NSAP | IANA has marked the IPv6 address prefix 0000 001, reserved for NSAP | ||
− | Allocation in [RFC3513], simply as Reserved. | + | Allocation in [[RFC3513]], simply as Reserved. |
IANA is holding the registry for "OSI NSAPA Internet Code Point" | IANA is holding the registry for "OSI NSAPA Internet Code Point" | ||
− | implied by Section 6 of [RFC1888] in abeyance until a replacement for | + | implied by Section 6 of [[RFC1888]] in abeyance until a replacement for |
that Section is approved for publication. | that Section is approved for publication. | ||
Line 97: | Line 86: | ||
== Normative References == | == Normative References == | ||
− | [RFC1888] Bound, J., Carpenter, B., Harrington, D., Houldsworth, J., | + | [[RFC1888]] Bound, J., Carpenter, B., Harrington, D., Houldsworth, J., |
− | and A. Lloyd, "OSI NSAPs and IPv6", RFC 1888, August 1996. | + | and A. Lloyd, "OSI NSAPs and IPv6", [[RFC1888|RFC 1888]], August 1996. |
− | [RFC3513] Hinden, R. and S. Deering, "Internet Protocol Version 6 | + | [[RFC3513]] Hinden, R. and S. Deering, "Internet Protocol Version 6 |
− | (IPv6) Addressing Architecture", RFC 3513, April 2003. | + | (IPv6) Addressing Architecture", [[RFC3513|RFC 3513]], April 2003. |
[NSAP] International Organization for Standardization, | [NSAP] International Organization for Standardization, | ||
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This document is subject to the rights, licenses and restrictions | This document is subject to the rights, licenses and restrictions | ||
− | contained in BCP 78, and except as set forth therein, the authors | + | contained in [[BCP78|BCP 78]], and except as set forth therein, the authors |
retain all their rights. | retain all their rights. | ||
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made any independent effort to identify any such rights. Information | made any independent effort to identify any such rights. Information | ||
on the procedures with respect to rights in RFC documents can be | on the procedures with respect to rights in RFC documents can be | ||
− | found in BCP 78 and BCP 79. | + | found in [[BCP78|BCP 78]] and [[BCP79|BCP 79]]. |
Copies of IPR disclosures made to the IETF Secretariat and any | Copies of IPR disclosures made to the IETF Secretariat and any | ||
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Funding for the RFC Editor function is currently provided by the | Funding for the RFC Editor function is currently provided by the | ||
Internet Society. | Internet Society. | ||
+ | |||
+ | [[Category:Informational]] |
Latest revision as of 13:58, 4 October 2020
Network Working Group B. Carpenter Request for Comments: 4048 IBM Category: Informational April 2005
RFC 1888 Is Obsolete
Status of This Memo
This memo provides information for the Internet community. It does not specify an Internet standard of any kind. Distribution of this memo is unlimited.
Copyright Notice
Copyright (C) The Internet Society (2005).
Abstract
This document recommends that RFC 1888, on Open Systems Interconnection (OSI) Network Service Access Points (NSAPs) and IPv6, be reclassified as Historic, as most of it has no further value, apart from one section, which is faulty.
Contents
Introduction
RFC1888 was published as an Experimental RFC in 1996, at an early stage in the development of IPv6, when it appeared important to consider usage of Open Systems Interconnection (OSI) addressing for IPv6. In Sections 3 through 5, it defines mappings of certain OSI Network Service Access Point (NSAP) addresses inside IPv6 addresses, and how to carry arbitrary NSAP addresses as IPv6 destination options. However, it also contains significant "health warnings" about the difficulty of routing packets in the global Internet using such addresses. As far as is known to the IETF, these address mappings have never been seriously used and are not supported by IPv6 implementations. Furthermore, the deployment of OSI solutions is not
sufficiently widespread that any change in this situation can be expected.
Additionally, Section 6 of RFC1888 specifies a mapping of IPv6 addresses inside OSI NSAP addresses. This mapping has recently aroused some interest: for example, to allow IP addresses to be expressed in an Asynchronous Transfer Mode (ATM) context. Unfortunately, Section 6 of RFC1888 contains two errors in its usage of OSI Initial Domain Part (IDP) format:
- first, the text refers to the Internet Code Point (ICP) as a single
octet, whereas it is correctly a 16-bit field;
- second, the text states that "[t]he first three octets are an IDP
in binary format", but [NSAP] states in section A.5.2.1 that "[t]he abstract syntax for the IDI is decimal digits" and specifies a preferred binary encoding in section A.5.3 "using a semi-octet to represent the value of each decimal digit ... , yielding a value in the range 0000-1001".
Recommendation to Reclassify RFC 1888
Due to the lack of use of one of the mappings, and to the errors in the documentation of the other, this document recommends that the IESG reclassify RFC1888 as Historic.
It is assumed that parties who wish to use a mapping of IPv6 addresses inside OSI NSAP addresses will correct, augment, and resubmit Section 6 of RFC1888 as a separate document.
Security Considerations
This recommendation has no known impact on the security of the Internet.
IANA Considerations
IANA has marked the IPv6 address prefix 0000 001, reserved for NSAP Allocation in RFC3513, simply as Reserved.
IANA is holding the registry for "OSI NSAPA Internet Code Point" implied by Section 6 of RFC1888 in abeyance until a replacement for that Section is approved for publication.
Acknowledgements
Scott Brim and Arun Pandey made useful comments on this document.
Normative References
RFC1888 Bound, J., Carpenter, B., Harrington, D., Houldsworth, J.,
and A. Lloyd, "OSI NSAPs and IPv6", RFC 1888, August 1996.
RFC3513 Hinden, R. and S. Deering, "Internet Protocol Version 6
(IPv6) Addressing Architecture", RFC 3513, April 2003.
[NSAP] International Organization for Standardization,
"Information technology -- Open Systems Interconnection -- Network service definition", ISO/IEC 8348:2002, 2002.
Author's Address
Brian E. Carpenter IBM Zurich Research Laboratory Saeumerstrasse 4 / Postfach 8803 Rueschlikon Switzerland
EMail: [email protected]
Full Copyright Statement
Copyright (C) The Internet Society (2005).
This document is subject to the rights, licenses and restrictions contained in BCP 78, and except as set forth therein, the authors retain all their rights.
This document and the information contained herein are provided on an "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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Copies of IPR disclosures made to the IETF Secretariat and any assurances of licenses to be made available, or the result of an attempt made to obtain a general license or permission for the use of such proprietary rights by implementers or users of this specification can be obtained from the IETF on-line IPR repository at http://www.ietf.org/ipr.
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Acknowledgement
Funding for the RFC Editor function is currently provided by the Internet Society.