draft-ietf-ospf-te-link-attr-reuse-00.txt   draft-ietf-ospf-te-link-attr-reuse-01.txt 
Network Working Group P. Psenak Network Working Group P. Psenak
Internet-Draft A. Lindem Internet-Draft A. Lindem
Intended status: Standards Track L. Ginsberg Intended status: Standards Track L. Ginsberg
Expires: February 22, 2018 Cisco Systems Expires: February 23, 2018 Cisco Systems
W. Henderickx W. Henderickx
Nokia Nokia
J. Tantsura J. Tantsura
Individual Individual
H. Gredler H. Gredler
RtBrick Inc. RtBrick Inc.
August 21, 2017 J. Drake
Juniper Networks
August 22, 2017
OSPFv2 Link Traffic Engineering (TE) Attribute Reuse OSPFv2 Link Traffic Engineering (TE) Attribute Reuse
draft-ietf-ospf-te-link-attr-reuse-00.txt draft-ietf-ospf-te-link-attr-reuse-01.txt
Abstract Abstract
Various link attributes have been defined in OSPFv2 in the context of Various link attributes have been defined in OSPFv2 in the context of
the MPLS Traffic Engineering (TE) and GMPLS. Many of these link the MPLS Traffic Engineering (TE) and GMPLS. Many of these link
attributes can be used for purposes other than MPLS Traffic attributes can be used for purposes other than MPLS Traffic
Engineering or GMPLS. This documents defines how to distribute such Engineering or GMPLS. This documents defines how to distribute such
attributes in OSPFv2 for applications other than MPLS Traffic attributes in OSPFv2 for applications other than MPLS Traffic
Engineering or GMPLS purposes. Engineering or GMPLS purposes.
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Internet-Drafts are working documents of the Internet Engineering Internet-Drafts are working documents of the Internet Engineering
Task Force (IETF). Note that other groups may also distribute Task Force (IETF). Note that other groups may also distribute
working documents as Internet-Drafts. The list of current Internet- working documents as Internet-Drafts. The list of current Internet-
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Internet-Drafts are draft documents valid for a maximum of six months Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
This Internet-Draft will expire on February 22, 2018. This Internet-Draft will expire on February 23, 2018.
Copyright Notice Copyright Notice
Copyright (c) 2017 IETF Trust and the persons identified as the Copyright (c) 2017 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of (http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
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3.1. TE Opaque LSA . . . . . . . . . . . . . . . . . . . . . . 4 3.1. TE Opaque LSA . . . . . . . . . . . . . . . . . . . . . . 4
3.2. Extended Link Opaque LSA . . . . . . . . . . . . . . . . 5 3.2. Extended Link Opaque LSA . . . . . . . . . . . . . . . . 5
3.3. Selected Approach . . . . . . . . . . . . . . . . . . . . 5 3.3. Selected Approach . . . . . . . . . . . . . . . . . . . . 5
4. Reused TE link attributes . . . . . . . . . . . . . . . . . . 6 4. Reused TE link attributes . . . . . . . . . . . . . . . . . . 6
4.1. Remote interface IP address . . . . . . . . . . . . . . . 6 4.1. Remote interface IP address . . . . . . . . . . . . . . . 6
4.2. Link Local/Remote Identifiers . . . . . . . . . . . . . . 6 4.2. Link Local/Remote Identifiers . . . . . . . . . . . . . . 6
4.3. Shared Risk Link Group (SRLG) . . . . . . . . . . . . . . 7 4.3. Shared Risk Link Group (SRLG) . . . . . . . . . . . . . . 7
4.4. Extended Metrics . . . . . . . . . . . . . . . . . . . . 7 4.4. Extended Metrics . . . . . . . . . . . . . . . . . . . . 7
5. Advertisement of Application Specific Values . . . . . . . . 7 5. Advertisement of Application Specific Values . . . . . . . . 7
6. Deployment Considerations . . . . . . . . . . . . . . . . . . 10 6. Deployment Considerations . . . . . . . . . . . . . . . . . . 10
7. Attribute Advertisements and Enablement . . . . . . . . . . . 10 7. Attribute Advertisements and Enablement . . . . . . . . . . . 11
8. Backward Compatibility . . . . . . . . . . . . . . . . . . . 11 8. Backward Compatibility . . . . . . . . . . . . . . . . . . . 11
9. Security Considerations . . . . . . . . . . . . . . . . . . . 11 9. Security Considerations . . . . . . . . . . . . . . . . . . . 12
10. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 12 10. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 12
11. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 12 11. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 12
12. References . . . . . . . . . . . . . . . . . . . . . . . . . 12 12. References . . . . . . . . . . . . . . . . . . . . . . . . . 13
12.1. Normative References . . . . . . . . . . . . . . . . . . 12 12.1. Normative References . . . . . . . . . . . . . . . . . . 13
12.2. Informative References . . . . . . . . . . . . . . . . . 13 12.2. Informative References . . . . . . . . . . . . . . . . . 13
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 14 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 14
1. Introduction 1. Introduction
Various link attributes have been defined in OSPFv2 [RFC2328] in the Various link attributes have been defined in OSPFv2 [RFC2328] in the
context of the MPLS traffic engineering and GMPLS. All these context of the MPLS traffic engineering and GMPLS. All these
attributes are distributed by OSPFv2 as sub-TLVs of the Link-TLV attributes are distributed by OSPFv2 as sub-TLVs of the Link-TLV
advertised in the OSPFv2 TE Opaque LSA [RFC3630]. advertised in the OSPFv2 TE Opaque LSA [RFC3630].
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Jeff Tantsura Jeff Tantsura
Individual Individual
USA USA
Email: jefftant.ietf@gmail.com Email: jefftant.ietf@gmail.com
Hannes Gredler Hannes Gredler
RtBrick Inc. RtBrick Inc.
Email: hannes@rtbrick.com Email: hannes@rtbrick.com
John Drake
Juniper Networks
Email: jdrake@juniper.net
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