draft-ietf-ospf-te-link-attr-reuse-05.txt   draft-ietf-ospf-te-link-attr-reuse-06.txt 
LSR Working Group P. Psenak, Ed. LSR Working Group P. Psenak, Ed.
Internet-Draft Cisco Systems, Inc. Internet-Draft Cisco Systems, Inc.
Intended status: Standards Track A. Lindem Intended status: Standards Track A. Lindem
Expires: April 20, 2019 L. Ginsberg Expires: May 13, 2019 L. Ginsberg
Cisco Systems Cisco Systems
W. Henderickx W. Henderickx
Nokia Nokia
J. Tantsura J. Tantsura
Nuage Networks Nuage Networks
H. Gredler H. Gredler
RtBrick Inc. RtBrick Inc.
J. Drake J. Drake
Juniper Networks Juniper Networks
October 17, 2018 November 9, 2018
OSPF Link Traffic Engineering (TE) Attribute Reuse OSPF Link Traffic Engineering (TE) Attribute Reuse
draft-ietf-ospf-te-link-attr-reuse-05.txt draft-ietf-ospf-te-link-attr-reuse-06.txt
Abstract Abstract
Various link attributes have been defined in OSPF in the context of Various link attributes have been defined in OSPF 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 applications other than MPLS Traffic attributes can be used for applications other than MPLS Traffic
Engineering or GMPLS. This document defines how to distribute such Engineering or GMPLS. This document defines how to distribute such
attributes in OSPFv2 and OSPFv3 for applications other than MPLS attributes in OSPFv2 and OSPFv3 for applications other than MPLS
Traffic Engineering or GMPLS. Traffic Engineering or GMPLS.
skipping to change at page 1, line 45 skipping to change at page 1, line 45
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 April 20, 2019. This Internet-Draft will expire on May 13, 2019.
Copyright Notice Copyright Notice
Copyright (c) 2018 IETF Trust and the persons identified as the Copyright (c) 2018 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
(https://trustee.ietf.org/license-info) in effect on the date of (https://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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4. Reused TE link attributes . . . . . . . . . . . . . . . . . . 6 4. Reused TE link attributes . . . . . . . . . . . . . . . . . . 6
4.1. Shared Risk Link Group (SRLG) . . . . . . . . . . . . . . 6 4.1. Shared Risk Link Group (SRLG) . . . . . . . . . . . . . . 6
4.2. Extended Metrics . . . . . . . . . . . . . . . . . . . . 7 4.2. Extended Metrics . . . . . . . . . . . . . . . . . . . . 7
4.3. Traffic Engineering Metric . . . . . . . . . . . . . . . 8 4.3. Traffic Engineering Metric . . . . . . . . . . . . . . . 8
4.4. Administrative Group . . . . . . . . . . . . . . . . . . 8 4.4. Administrative Group . . . . . . . . . . . . . . . . . . 8
5. Advertisement of Application Specific Values . . . . . . . . 8 5. Advertisement of Application Specific Values . . . . . . . . 8
6. Maximum Link Bandwidth . . . . . . . . . . . . . . . . . . . 11 6. Maximum Link Bandwidth . . . . . . . . . . . . . . . . . . . 11
7. Local Interface IPv6 Address Sub-TLV . . . . . . . . . . . . 12 7. Local Interface IPv6 Address Sub-TLV . . . . . . . . . . . . 12
8. Remote Interface IPv6 Address Sub-TLV . . . . . . . . . . . . 12 8. Remote Interface IPv6 Address Sub-TLV . . . . . . . . . . . . 12
9. Deployment Considerations . . . . . . . . . . . . . . . . . . 12 9. Deployment Considerations . . . . . . . . . . . . . . . . . . 12
10. Attribute Advertisements and Enablement . . . . . . . . . . . 12 10. Attribute Advertisements and Enablement . . . . . . . . . . . 13
11. Backward Compatibility . . . . . . . . . . . . . . . . . . . 13 11. Backward Compatibility . . . . . . . . . . . . . . . . . . . 14
12. Security Considerations . . . . . . . . . . . . . . . . . . . 14 12. Security Considerations . . . . . . . . . . . . . . . . . . . 14
13. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 14 13. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 14
13.1. OSPFv2 . . . . . . . . . . . . . . . . . . . . . . . . . 14 13.1. OSPFv2 . . . . . . . . . . . . . . . . . . . . . . . . . 14
13.2. OSPFv3 . . . . . . . . . . . . . . . . . . . . . . . . . 15 13.2. OSPFv3 . . . . . . . . . . . . . . . . . . . . . . . . . 15
14. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 16 14. Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . 16
15. References . . . . . . . . . . . . . . . . . . . . . . . . . 16 15. References . . . . . . . . . . . . . . . . . . . . . . . . . 16
15.1. Normative References . . . . . . . . . . . . . . . . . . 16 15.1. Normative References . . . . . . . . . . . . . . . . . . 16
15.2. Informative References . . . . . . . . . . . . . . . . . 17 15.2. Informative References . . . . . . . . . . . . . . . . . 17
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 18 Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 18
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| Link Attribute sub-sub-TLVs | | Link Attribute sub-sub-TLVs |
+- -+ +- -+
| ... | | ... |
where: where:
Type: TBD21 (OSPFv2), TBD22 (OSPFv3) Type: TBD21 (OSPFv2), TBD22 (OSPFv3)
Length: variable Length: variable
SABML: Standard Application Bit-Mask Length. If the Standard SABML: Standard Application Bit-Mask Length. It MUST be a
Application Bit-Mask is not present, the Standard Application Bit- multiple of 4 bytes. If the Standard Application Bit-Mask is not
Mask Length MUST be set to 0. present, the Standard Application Bit-Mask Length MUST be set to
0.
UDABML: User Defined Application Bit-Mask Length. If the User UDABML: User Defined Application Bit-Mask Length. It MUST be a
Defined Application Bit-Mask is not present, the User Defined multiple of 4 bytes. If the User Defined Application Bit-Mask is
Application Bit-Mask Length MUST be set to 0. not present, the User Defined Application Bit-Mask Length MUST be
set to 0.
Standard Application Bit-Mask: Optional set of bits, where each Standard Application Bit-Mask: Optional set of bits, where each
bit represents a single standard application. Bits are defined in bit represents a single standard application. Bits are defined in
[I-D.ietf-isis-te-app], which also request a new IANA "Link [I-D.ietf-isis-te-app], which also request a new IANA "Link
Attribute Applications" registry under "Interior Gateway Protocol Attribute Applications" registry under "Interior Gateway Protocol
(IGP) Parameters" for them. The bits are repeated here for (IGP) Parameters" for them. The bits are repeated here for
informational purpose: informational purpose:
Bit-0: RSVP Traffic Engineering Bit-0: RSVP Traffic Engineering
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