Update to the Include Route Object (IRO) Specification in the Path Computation Element Communication Protocol (PCEP)
RFC 7896
| Document | Type |
RFC - Proposed Standard
(June 2016; No errata)
Updates RFC 5440
|
|
|---|---|---|---|
| Last updated | 2019-03-11 | ||
| Replaces | draft-dhody-pce-iro-update | ||
| Stream | IETF | ||
| Formats | plain text pdf html bibtex | ||
| Reviews | |||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | Jonathan Hardwick | ||
| Shepherd write-up | Show (last changed 2016-02-03) | ||
| IESG | IESG state | RFC 7896 (Proposed Standard) | |
| Consensus Boilerplate | Yes | ||
| Telechat date | |||
| Responsible AD | Deborah Brungard | ||
| Send notices to | "Jonathan Hardwick" <jonathan.hardwick@metaswitch.com> | ||
| IANA | IANA review state | Version Changed - Review Needed | |
| IANA action state | No IANA Actions | ||
Internet Engineering Task Force (IETF) D. Dhody
Request for Comments: 7896 Huawei Technologies
Updates: 5440 June 2016
Category: Standards Track
ISSN: 2070-1721
Update to the Include Route Object (IRO) Specification
in the Path Computation Element Communication Protocol (PCEP)
Abstract
The Path Computation Element Communication Protocol (PCEP) enables
communications between a Path Computation Client (PCC) and a PCE, or
between two PCEs. RFC 5440 defines the Include Route Object (IRO) to
specify network elements to be traversed in the computed path. The
specification does not specify if the IRO contains an ordered or
unordered list of subobjects. During recent discussions, it was
determined that there was a need to define a standard representation
to ensure interoperability. It was also noted that there is a
benefit in the handling of an attribute of the IRO's subobject, the L
bit.
This document updates RFC 5440 regarding the IRO specification.
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/rfc7896.
Dhody Standards Track [Page 1]
RFC 7896 IRO Specification Update June 2016
Copyright Notice
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 3
2. Update in the IRO Specification . . . . . . . . . . . . . . . 3
2.1. Update to RFC 5440 . . . . . . . . . . . . . . . . . . . 3
3. Operational Considerations . . . . . . . . . . . . . . . . . 4
4. Security Considerations . . . . . . . . . . . . . . . . . . . 4
5. References . . . . . . . . . . . . . . . . . . . . . . . . . 4
5.1. Normative References . . . . . . . . . . . . . . . . . . 4
5.2. Informative References . . . . . . . . . . . . . . . . . 5
Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . . 5
Author's Address . . . . . . . . . . . . . . . . . . . . . . . . 5
Dhody Standards Track [Page 2]
RFC 7896 IRO Specification Update June 2016
1. Introduction
The Path Computation Element Communication Protocol (PCEP) enables
communications between a Path Computation Client (PCC) and a PCE, or
between two PCEs. [RFC5440] defines the Include Route Object (IRO)
to specify network elements to be traversed in the computed path.
The specification does not specify if the IRO is an ordered or
unordered list of subobjects. In addition, it defines the L bit as
having no meaning within an IRO.
[RFC5441] describes the use of an IRO to indicate the sequence of
domains to be traversed during inter-domain path computation.
During recent discussions, it was determined that there was a need to
define a standard representation to ensure interoperability.
This document updates the IRO specifications in Section 7.12 of
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