Priority-based allocation of network resources in multi-class MPLS networks

Authors:
Najmul Hassan;Adeel Baig;Junaid Qadir;Madeeha Owais
Affiliations:
National University of Sciences and Technology (NUST), Islamabad, Pakistan;National University of Sciences and Technology (NUST), Islamabad, Pakistan;National University of Sciences and Technology (NUST), Islamabad, Pakistan;National University of Sciences and Technology (NUST), Islamabad, Pakistan
Venue:
Proceedings of the 7th International Conference on Frontiers of Information Technology
Year:
2009

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Abstract

Multi-Protocol Label Switching (MPLS) is an emerging technology used for the high speed and reliable data transfer, especially in the backbone network. MPLS provides Quality of Service (QoS) routing and Traffic Engineering (TE) mechanism to fulfill the end user requirements. In a multi-service network, different users or applications require different quality of services. The differentiated services (DiffServ) architecture has been proposed and considered as a scalable approach, which aims to provide differentiated services to different classes of traffic in a network. In this paper, we propose an approach called Priority based Allocation Scheme (PAS) that allocates network resources in multi-class MPLS networks based on priority class of LSP request. Simulation results show that our approach accepts, as a whole, higher number of LSP requests than Simple Allocation Scheme (SAS) and Medium Allocation Scheme (MAS). It uses almost same bandwidth as SAS. Our results also show that PAS is a priority based and balanced approach that accepts more premium class traffic requests than medium or low class requests.