BGP - Link State (BGP-LS) Advertisement of IGP Traffic Engineering Performance Metric Extensions
RFC 8571
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| Document |
Type |
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RFC - Proposed Standard
(March 2019; No errata)
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Last updated |
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2019-03-15
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Replaces |
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draft-previdi-idr-bgpls-te-metric-extensions, draft-wu-idr-te-pm-bgp
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Stream |
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IETF
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Formats |
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plain text
pdf
html
bibtex
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Reviews |
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GENART,
SECDIR
will not review this version
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| Stream |
WG state
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Submitted to IESG for Publication
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Document shepherd |
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Susan Hares
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Shepherd write-up |
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Show
(last changed 2018-10-20)
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| IESG |
IESG state |
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RFC 8571 (Proposed Standard)
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Consensus Boilerplate |
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Yes
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Telechat date |
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Responsible AD |
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Alvaro Retana
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Send notices to |
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Susan Hares <shares@ndzh.com>, aretana.ietf@gmail.com
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| IANA |
IANA review state |
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IANA OK - Actions Needed
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IANA action state |
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RFC-Ed-Ack
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Internet Engineering Task Force (IETF) L. Ginsberg, Ed.
Request for Comments: 8571 Cisco Systems, Inc.
Category: Standards Track S. Previdi
ISSN: 2070-1721 Q. Wu
Huawei
J. Tantsura
Apstra, Inc.
C. Filsfils
Cisco Systems, Inc.
March 2019
BGP - Link State (BGP-LS) Advertisement of
IGP Traffic Engineering Performance Metric Extensions
Abstract
This document defines new BGP - Link State (BGP-LS) TLVs in order to
carry the IGP Traffic Engineering Metric Extensions defined in the
IS-IS and OSPF protocols.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 7841.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
https://www.rfc-editor.org/info/rfc8571.
Ginsberg, et al. Standards Track [Page 1]
RFC 8571 BGP-LS Advertisement of IGP TE Metric Extensions March 2019
Copyright Notice
Copyright (c) 2019 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(https://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Table of Contents
1. Introduction ....................................................2
2. Link Attribute TLVs for TE Metric Extensions ....................3
2.1. Unidirectional Link Delay TLV ..............................3
2.2. Min/Max Unidirectional Link Delay TLV ......................4
2.3. Unidirectional Delay Variation TLV .........................4
2.4. Unidirectional Link Loss TLV ...............................5
2.5. Unidirectional Residual Bandwidth TLV ......................5
2.6. Unidirectional Available Bandwidth TLV .....................6
2.7. Unidirectional Utilized Bandwidth TLV ......................6
2.8. Mappings to IGP Source Sub-TLVs ............................7
3. Security Considerations .........................................7
4. IANA Considerations .............................................8
5. References ......................................................8
5.1. Normative References .......................................8
5.2. Informative References .....................................9
Acknowledgements ...................................................9
Contributors .......................................................9
Authors' Addresses ................................................10
1. Introduction
BGP - Link State (BGP-LS) [RFC7752] defines Network Layer
Reachability Information (NLRI) and attributes in order to carry
link-state information. New BGP-LS Link Attribute TLVs are required
in order to carry the Traffic Engineering Metric Extensions defined
in [RFC8570] and [RFC7471].
Ginsberg, et al. Standards Track [Page 2]
RFC 8571 BGP-LS Advertisement of IGP TE Metric Extensions March 2019
2. Link Attribute TLVs for TE Metric Extensions
The following new Link Attribute TLVs are defined:
TLV Code Point Value
--------------------------------------------------------
1114 Unidirectional Link Delay
1115 Min/Max Unidirectional Link Delay
1116 Unidirectional Delay Variation
1117 Unidirectional Link Loss
1118 Unidirectional Residual Bandwidth
1119 Unidirectional Available Bandwidth
1120 Unidirectional Utilized Bandwidth
TLV formats are described in detail in the following subsections.
TLV formats follow the rules defined in [RFC7752].
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