Adopting SCTP and MPLS-TE mechanism in VoIP architecture for fault recovery and resource allocation

Authors:
Fu-Min Chang;I-Ping Hsieh;Shang-Juh Kao
Affiliations:
Department of Finance, Chaoyang University of Technology, Taichuang County, Taiwan;Department of Computer Science and Engineering, National Chung Hsing University, Taichuang, Taiwan;Department of Computer Science and Engineering, National Chung Hsing University, Taichuang, Taiwan
Venue:
ICOIN'09 Proceedings of the 23rd international conference on Information Networking
Year:
2009

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Internet traffic engineering using multi-protocol label switching (MPLS)

Computer Networks: The International Journal of Computer and Telecommunications Networking - Special issue: Towards a new internet architecture

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Abstract

VoIP application allows us to transmit the voice data over Internet. In this paper, a VoIP architecture with fault recovery and resource allocation by adopting Multi-homed Stream Control Transmission Protocol (SCTP) and Multi-Protocol Label Switching Traffic Engineering (MPLS-TE) mechanism was proposed. In the proposed architecture, SCTP was employed to transmit SIP messages while MPLS-TE mechanism was applied to set up the voice data transmitting path. With the multihoming capability of SCTP, the voice call failure rate could be reduced and network resources could be utilized efficiently. Through MPLS-TE mechanism, traffic engineering functions such as network resources optimization, strict Quality of Service (QoS) voice data delivery, and fast recovery upon link or node failures could be ensured. We simulate three architectures in the Network Simulator (NS2) software and compare them under different network conditions. The simulation results reveal that the applicability of the proposed architecture.