QoS protection optimisation for MPLS. (6th June 2011)

• Record Type: Journal Article
• Authors: Rizk, Rawya; Elmaghraby, Alyaa; Marie, Mahmoud
• Is Part Of: International journal of communication networks and distributed systems. Volume 6:Number 4(2011)
• Page Start: 420
• Page End: 438
• Publication Date: 2011-06-06
• Subjects: communication networks -- multiprotocol label switching -- MPLS -- path protection -- QoS routing -- restoration -- optimisation -- quality of service -- QoS backup protection -- QoS protection -- network constraints -- traffic types; Computer networks -- Periodicals; Telecommunication systems -- Periodicals; Electronic data processing -- Distributed processing -- Periodicals; 004.6
• Languages: English
• ISSNs: 1754-3916

Abstract

Path protection is an important aspect to realise uninterrupted transmission in case of failure MPLS-based networks. In this paper, it is shown that none of the existing protection backup path methods is optimal at all protection parameters and network constraints. Hence, a general QoS backup protection optimisation policy applicable to a wide range of network situations and traffic types is proposed. A comparison between the proposed policy and the conventional protection backup methods is performed. The numerical results show a significant improvement of the proposed QoS protection over conventional protection backup methods at variable protection parameters, network constraints and traffic types.