RFC 5623

Framework for PCE-Based Inter-Layer MPLS and GMPLS Traffic Engineering, September 2009

Canonical URL:
https://www.rfc-editor.org/rfc/rfc5623.txt
File formats:
Plain TextPDF
Status:
INFORMATIONAL
Authors:
E. Oki
T. Takeda
JL. Le Roux
A. Farrel
Stream:
IETF
Source:
pce (rtg)

Cite this RFC: TXT  |  XML

DOI:  10.17487/RFC5623

Discuss this RFC: Send questions or comments to pce@ietf.org

Other actions: View Errata  |  Submit Errata  |  Find IPR Disclosures from the IETF


Abstract

A network may comprise multiple layers. It is important to globally optimize network resource utilization, taking into account all layers rather than optimizing resource utilization at each layer independently. This allows better network efficiency to be achieved through a process that we call inter-layer traffic engineering. The Path Computation Element (PCE) can be a powerful tool to achieve inter-layer traffic engineering. This document describes a framework for applying the PCE-based architecture to inter-layer Multiprotocol Label Switching (MPLS) and Generalized MPLS (GMPLS) traffic engineering. It provides suggestions for the deployment of PCE in support of multi-layer networks. This document also describes network models where PCE performs inter-layer traffic engineering, and the relationship between PCE and a functional component called the Virtual Network Topology Manager (VNTM). This memo provides information for the Internet community.


For the definition of Status, see RFC 2026.

For the definition of Stream, see RFC 4844.


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