An Analysis of Scaling Issues in MPLS-TE Core Networks
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From: The IESG <email@example.com> To: IETF-Announce <firstname.lastname@example.org> Cc: Internet Architecture Board <email@example.com>, RFC Editor <firstname.lastname@example.org>, mpls mailing list <email@example.com>, mpls chair <firstname.lastname@example.org> Subject: Document Action: 'An Analysis of Scaling Issues in MPLS-TE Core Networks' to Informational RFC The IESG has approved the following document: - 'An Analysis of Scaling Issues in MPLS-TE Core Networks ' <draft-ietf-mpls-te-scaling-analysis-06.txt> as an Informational RFC This document is the product of the Multiprotocol Label Switching Working Group. The IESG contact persons are Ross Callon and David Ward. A URL of this Internet-Draft is: http://www.ietf.org/internet-drafts/draft-ietf-mpls-te-scaling-analysis-06.txt
Technical Summary This informational document presents an analysis of some of the scaling concerns for the number of Label Switching Paths (LSPs) in MPLS-TE core networks, and examines the value of two techniques (LSP hierarchies, and multipoint-to-point LSPs) for improving scaling. The intention is to motivate the development of appropriate deployment techniques and protocol extensions to enable the application of MPLS-TE in large networks. This document only considers the question of achieving scalability for the support of point-to-point MPLS-TE LSPs. Point-to-multipoint MPLS-TE LSPs are for future study. Working Group Summary No controversy reported (see PROTO writeup by Loa Andersson in the ID Tracker). Several WG participants expressed an interest in knowing how the scaling properties are affected by fast reroute, and how P2MP MPLS-TE scales. It was agreed that these issues constitute more advanced questions and should be addressed in separate drafts. Document Quality As an analysis of scaling properties, this document does not specify anything that could or would be implemented. This document was reviewed by the MPLS and CCAMP WGs, and underwent IETF last call without any controversy nor complaints. It has been updated based on Gen-Art comments. The algorithms developed in this document have been applied to understand MPLS-TE and PBB-TE deployments by several vendors. Personnel Loa Andersson is the Document Shepherd for this document. Ross Callon is the Responsible Area Director.