An Analysis of Scaling Issues in MPLS-TE Core Networks

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Publisher: IETF
Doc Type: Informational
Pages: 45
Abstract: Traffic engineered Multiprotocol Label Switching (MPLS-TE) is deployed in providers' core networks. As providers plan to grow these networks, they need to understand whether existing protocols and implementations can support the network sizes that they are planning. This 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. This memo provides information for the Internet community.
Publication Date: 2009-02-01
Status Note: Informational
DOI: 10.17487/RFC5439
Link: https://doi.org/10.17487/RFC5439
Author(s): Seisho Yasukawa
Adrian Farrel
Olufemi Komolafe
Keyword(s): MPLS, MPLS-TE, LSP, Point-to-point Mpls-te Lsps

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▶ IETF RFC 5439 (2009-02-01)

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Normative Reference(s)

IETF RFC 4206 [Active*]

Bibliographic Reference(s)

Fang, L., Ed., "Security Framework for MPLS and GMPLS Networks", Work in Progress, November 2008. EXTERNAL
Yasukawa, Y., "Supporting Multipoint-to-Point Label Switched Paths in Multiprotocol Label Switching Traffic Engineering", Work in Progress, October 2008. EXTERNAL
IETF RFC 2961 [Active*]
IETF RFC 3209 [Active*]
IETF RFC 3270 [Active*]
IETF RFC 3473 [Active*]
IETF RFC 3985 [Active*]
IETF RFC 4090 [Active*]
IETF RFC 4110 [Active*]
IETF RFC 4972 [Active*]
IETF RFC 5036 [Active*]

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Referenced By

IETF RFC 8370 [Active*]