IS-IS Path Control and Reservation
RFC 7813
| Document | Type |
RFC - Proposed Standard
(June 2016; No errata)
Was draft-ietf-isis-pcr (isis WG)
|
|
|---|---|---|---|
| Authors | János Farkas , Nigel Bragg , Paul Unbehagen , Glenn Parsons , Peter Ashwood-Smith , Chris Bowers | ||
| Last updated | 2016-06-16 | ||
| Replaces | draft-farkas-isis-pcr | ||
| Stream | IETF | ||
| Formats | plain text html pdf htmlized bibtex | ||
| Reviews | |||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | Hannes Gredler | ||
| Shepherd write-up | Show (last changed 2015-11-10) | ||
| IESG | IESG state | RFC 7813 (Proposed Standard) | |
| Consensus Boilerplate | Yes | ||
| Telechat date | |||
| Responsible AD | Alia Atlas | ||
| Send notices to | "Hannes Gredler" <hannes@gredler.at> | ||
| IANA | IANA review state | Version Changed - Review Needed | |
| IANA action state | RFC-Ed-Ack | ||
Internet Engineering Task Force (IETF) J. Farkas, Ed.
Request for Comments: 7813 Ericsson
Category: Standards Track N. Bragg
ISSN: 2070-1721 Ciena
P. Unbehagen
Avaya
G. Parsons
Ericsson
P. Ashwood-Smith
Huawei Technologies
C. Bowers
Juniper Networks
June 2016
IS-IS Path Control and Reservation
Abstract
IEEE 802.1Qca Path Control and Reservation (PCR) specifies explicit
path control via IS-IS in Layer 2 networks in order to move beyond
the shortest path capabilities provided by IEEE 802.1aq Shortest Path
Bridging (SPB). IS-IS PCR provides capabilities for the
establishment and control of explicit forwarding trees in a Layer 2
network domain. This document specifies the sub-TLVs for IS-IS PCR.
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
http://www.rfc-editor.org/info/rfc7813.
Farkas, et al. Standards Track [Page 1]
RFC 7813 IS-IS PCR June 2016
Copyright Notice
Copyright (c) 2016 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
(http://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 . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Conventions Used in This Document . . . . . . . . . . . . . . 4
3. Terminology and Definitions . . . . . . . . . . . . . . . . . 4
4. Explicit Trees . . . . . . . . . . . . . . . . . . . . . . . 6
5. Explicit ECT Algorithms . . . . . . . . . . . . . . . . . . . 9
6. IS-IS PCR Sub-TLVs . . . . . . . . . . . . . . . . . . . . . 11
6.1. Topology Sub-TLV . . . . . . . . . . . . . . . . . . . . 11
6.2. Hop Sub-TLV . . . . . . . . . . . . . . . . . . . . . . . 15
6.3. Bandwidth Constraint Sub-TLV . . . . . . . . . . . . . . 19
6.4. Bandwidth Assignment Sub-TLV . . . . . . . . . . . . . . 21
6.5. Timestamp Sub-TLV . . . . . . . . . . . . . . . . . . . . 23
7. MRT-FRR Application . . . . . . . . . . . . . . . . . . . . . 24
8. Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
9. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 29
10. Security Considerations . . . . . . . . . . . . . . . . . . . 29
11. References . . . . . . . . . . . . . . . . . . . . . . . . . 30
11.1. Normative References . . . . . . . . . . . . . . . . . . 30
11.2. Informative References . . . . . . . . . . . . . . . . . 31
Acknowledgements . . . . . . . . . . . . . . . . . . . . . . . . 32
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 32
Farkas, et al. Standards Track [Page 2]
RFC 7813 IS-IS PCR June 2016
1. Introduction
IEEE 802.1Qca Path Control and Reservation (PCR) [IEEE8021Qca]
specifies extensions to IS-IS for the control of Explicit Trees
(ETs). The PCR extensions are compatible with the Shortest Path
Bridging (SPB) extensions to IS-IS specified by [RFC6329] and
[IEEE8021aq] (already rolled into [IEEE8021Q]). Furthermore, IS-IS
with PCR extensions relies on the SPB architecture and terminology,
and some of the IS-IS SPB sub-TLVs are also leveraged. IS-IS PCR
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