Unanswered Questions in the Path Computation Element Architecture (RFC7399)
Original Publication Date: 2014-Oct-01
Included in the Prior Art Database: 2014-Nov-01
Internet Society Requests For Comment (RFCs)
A. Farrel: AUTHOR [+2]
Over the years since the architecture for the Path Computation Element (PCE) was documented in [RFC4655], many new people have become involved in the work of the PCE working group and wish to use or understand the PCE architecture. These people often missed out on early discussions within the working group and are unfamiliar with questions that were raised during the development of the documentation.
Internet Engineering Task Force (IETF) A. Farrel Request for Comments: 7399 Juniper Networks Category: Informational D. King ISSN: 2070-1721 Old Dog Consulting October 2014
Unanswered Questions in the Path Computation Element Architecture
The Path Computation Element (PCE) architecture is set out in RFC 4655. The architecture is extended for multi-layer networking with the introduction of the Virtual Network Topology Manager (VNTM) in RFC 5623 and generalized to Hierarchical PCE (H-PCE) in RFC 6805.
These three architectural views of PCE deliberately leave some key questions unanswered, especially with respect to the interactions between architectural components. This document draws out those questions and discusses them in an architectural context with reference to other architectural components, existing protocols, and recent IETF efforts.
This document does not update the architecture documents and does not define how protocols or components must be used. It does, however, suggest how the architectural components might be combined to provide advanced PCE function.
Status of This Memo
This document is not an Internet Standards Track specification; it is published for informational purposes.
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). Not all documents approved by the IESG are a candidate for any level of Internet Standard; see Section 2 of RFC 5741.
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/rfc7399.
Farrel & King Informational [Page 1]
RFC 7399 Questions in PCE Architecture October 2014
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