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Asymmetric tunnels in P2MP LSPs as a label space reduction method

The objective of traffic engineering is to optimize network resource utilization. Although several works have been published about minimizing network resource utilization, few works have focused on LSR (label switched router) label space. This paper proposes an algorithm that takes advantage of the MPLS label stack features in order to reduce the number of labels used in LSPs. Some tunnelling methods and their MPLS implementation drawbacks are also discussed. The described algorithm sets up NHLFE (next hop label forwarding entry) tables in each LSR, creating asymmetric tunnels when possible. Experimental results show that the described algorithm achieves a great reduction factor in the label space. The presented works apply for both types of connections: P2MP (point-to-multipoint) and P2P (point-to-point)

IEEE

Author: Solano Donado, Fernando
Fabregat Gesa, Ramon
Donoso Meisel, Yezid
Marzo i Lázaro, Josep Lluís
Abstract: The objective of traffic engineering is to optimize network resource utilization. Although several works have been published about minimizing network resource utilization, few works have focused on LSR (label switched router) label space. This paper proposes an algorithm that takes advantage of the MPLS label stack features in order to reduce the number of labels used in LSPs. Some tunnelling methods and their MPLS implementation drawbacks are also discussed. The described algorithm sets up NHLFE (next hop label forwarding entry) tables in each LSR, creating asymmetric tunnels when possible. Experimental results show that the described algorithm achieves a great reduction factor in the label space. The presented works apply for both types of connections: P2MP (point-to-multipoint) and P2P (point-to-point)
Document access: http://hdl.handle.net/2072/59113
Language: eng
Publisher: IEEE
Rights: Tots els drets reservats
Subject: MPLS (Norma)
Telecomunicació -- Tràfic
MPLS standard
Telecommunication -- Traffic
Title: Asymmetric tunnels in P2MP LSPs as a label space reduction method
Type: info:eu-repo/semantics/article
Repository: Recercat

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