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
|
|
---|---|---|---|
Author | Dhruv Dhody | ||
Last updated | 2019-03-11 | ||
Replaces | draft-dhody-pce-iro-update | ||
Stream | IETF | ||
Formats | plain text html pdf htmlized 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 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. This document may contain material from IETF Documents or IETF Contributions published or made publicly available before November 10, 2008. The person(s) controlling the copyright in some of this material may not have granted the IETF Trust the right to allow modifications of such material outside the IETF Standards Process. Without obtaining an adequate license from the person(s) controlling the copyright in such materials, this document may not be modified outside the IETF Standards Process, and derivative works of it may not be created outside the IETF Standards Process, except to format it for publication as an RFC or to translate it into languages other than English. 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 ofShow full document text