RFC3359 Reserved Type, Length and Value (TLV) Codepoints in IntermediateSystem to Intermediate System
3359 Reserved Type, Length and Value (TLV) Codepoints in IntermediateSystem to Intermediate System. T. Przygienda. August 2002. (Format: TXT=7843 bytes) (Status: INFORMATIONAL)
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Network Working Group T. Przygienda
Request for Comments: 3359 Xebeo
Category: Informational August 2002
Reserved Type, Length and Value (TLV) Codepoints in
Intermediate System to Intermediate System
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 (2002). All Rights Reserved.
Abstract
This document describes implementation codepoints within Intermediate
System to Intermediate System (IS-IS) used today by several ISPs for
routing within their clouds. IS-IS is an interior gateway routing
protocol developed originally by OSI and used with IP extensions as
Interior Gateway Protocol (IGP). This document summarizes all Table,
Length and Value (TLV) codepoints that are being used by the protocol
and its pending extensions.
Przygienda Informational [Page 1]
RFC 3359 Reserved TLV Codepoints in ISIS August 2002
1. TLV Codepoints Reserved
_____________________________________________________________________
Name Value IIH LSP SNP Status
_____________________________________________________________________
Area Addresses 1 y y n ISO 10589
IIS Neighbors 2 n y n ISO 10589
ES Neighbors 3 n y n ISO 10589
Part. DIS 4 n y n ISO 10589
Prefix Neighbors 5 n y n ISO 10589
IIS Neighbors 6 y n n ISO 10589
Padding 8 y n n ISO 10589
LSP Entries 9 n n y ISO 10589
Authentication 10 y y y ISO 10589
Opt. Checksum 12 y n y IETF-draft
LSPBufferSize 14 n y n ISO 10589 Rev 2 Draft
TE IIS Neigh. 22 n y n IETF-draft
DECnet Phase IV 42 y n n DEC (ancient)
Lucent Proprietary 66 n y n
IP Int. Reach 128 n y n RFC 1195
Prot. Supported 129 y y n RFC 1195
IP Ext. Address 130 n y n RFC 1195
IDRPI 131 n y y RFC 1195
IP Intf. Address 132 y y n RFC 1195
Illegal 133 n n n RFC 1195 (not used)
Router ID 134 n y n IETF-draft
TE IP. Reach 135 n y n IETF-draft
Dynamic Name 137 n y n RFC 2763
Nortel Proprietary 176 n y n
Nortel Proprietary 177 n y n
Restart TLV 211 y n n IETF-draft
MT-ISN 222 n y n IETF-draft
M-Topologies 229 y y n IETF-draft
IPv6 Intf. Addr. 232 y y n IETF-draft
MT IP. Reach 235 n y n IETF-draft
IPv6 IP. Reach 236 n y n IETF-draft
MT IPv6 IP. Reach 237 n y n IETF-draft
P2P Adjacency State 240 y n n IETF-draft
Przygienda Informational [Page 2]
RFC 3359 Reserved TLV Codepoints in ISIS August 2002
2. Assignment Procedures
This document is provided to avoid possible future conflicts in the
assignment of TLV numbers. It does not constitute or represent any
standard or authority assigning TLV numbers. TLV assignment happens
on a shared, informational basis between the ISO, SIF and the IETF
working groups. The core ISIS protocol is being specified in the ISO
standards body, IP extensions to it however are products of the ISIS
working group in IETF. Since ISO does not provide a numbering
authority and IANA is only responsible for IP related coding points,
no plausible central authority to assign TLV numbers exists as of
today.
This document will be periodically updated by newer versions in the
fashion of [RP94] and successors. It may be replaced at any given
point in time by some type of official registry.
This document will not indicate specific documents using the
codepoints, nor will it resolve the sub-TLV codepoints.
3. Acknowledgments
Thanks to Les Ginsberg and others for pointing out details and
improving this work.
4. Security Consideration
ISIS security applies to the work presented. No specific security
issues are being introduced.
5. References
[Cal90a] R. Callon. OSI ISIS Intradomain Routing Protocol.
INTERNET-RFC, Internet Engineering Task Force, February
1990.
[Cal90b] R. Callon. Use of OSI ISIS for Routing in TCP/IP and Dual
Environments. INTERNET-RFC, Internet Engineering Task
Force, December 1990.
[ISO90] ISO. Information Technology - Telecommunications and
Information Exchange between Systems - Intermediate System
to Intermediate System Routing Exchange Protocol for Use in
Conjunction with the Protocol for Providing the
Connectionless-Mode Network Service. ISO, 1990.
[RP94] Reynolds, J., "Assigned Numbers; RFC 1700 is Replaced by an
On-line Database", RFC 3232, January, 2002.
Przygienda Informational [Page 3]
RFC 3359 Reserved TLV Codepoints in ISIS August 2002
6. Authors' Addresses
Tony Przygienda
Xebeo
One Cragwood Road
South Plainfield, NJ 07080
Phone: (908) 222 4225
Email: prz@xebeo.com
Przygienda Informational [Page 4]
RFC 3359 Reserved TLV Codepoints in ISIS August 2002
7. Full Copyright Statement
Copyright (C) The Internet Society (2002). All Rights Reserved.
This document and translations of it may be copied and furnished to
others, and derivative works that comment on or otherwise explain it
or assist in its implementation may be prepared, copied, published
and distributed, in whole or in part, without restriction of any
kind, provided that the above copyright notice and this paragraph are
included on all such copies and derivative works. However, this
document itself may not be modified in any way, such as by removing
the copyright notice or references to the Internet Society or other
Internet organizations, except as needed for the purpose of
developing Internet standards in which case the procedures for
copyrights defined in the Internet Standards process must be
followed, or as required to translate it into languages other than
English.
The limited permissions granted above are perpetual and will not be
revoked by the Internet Society or its successors or assigns.
This document and the information contained herein is provided on an
"AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
TASK FORCE DISCLAIMS 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.
Acknowledgement
Funding for the RFC Editor function is currently provided by the
Internet Society.
Przygienda Informational [Page 5]
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