Simulation Studies of Diffserv Policies for the Internet Traffic

L. Audah, N. Jusoh, A. Jamil, J. Abdullah, S.A. Hamzah, N.A.M. Alduais, M.A.A. Razak

Abstract


Differentiated Services (Diffserv) is the Internet architecture that uses the queuing management schemes to provision the traffic flows in the Internet backbone system. It discriminates traffic flows to a finite aggregate of classes and provides scalability solution by simplifying the complexity functions at the edge routers. In this paper, we study the end-toend (e2e) Quality of Service (QoS) performance of File Transfer Protocol (FTP) and Constant Bit Rate (CBR) traffics transmitted over a Diffserv network. The Diffserv system applied the Token Bucket, Time Sliding Window Three Color Marker (TSW3CM) and Single Rate Three Color Marker (SRTCM) traffic provisioning policies. The e2e QoS parameters include delay, jitter, loss ratio and throughput are analyzed and compared among the policy types against the increment of traffic connections in the network system. We conclude that the FTP traffic could achieved the best overall delay performance using SRTCM policy and the best jitter performance using TSW3CM. The lowest overall loss ratio and the best throughput for FTP could be achieved using Token Bucket. Besides that, the CBR traffic has achieved the best overall delay performance using TSW3CM policy while the SRTCM policy provides the best jitter, loss ratio and throughput performances. The future works aims to design the combination of QoS aware routing, scheduling, and Diffserv queuing schemes that can adaptively maintain QoS for each type of traffic at optimum level.

Keywords


Diffserv; Token Bucket; TSW3CM, SRTCM; QoS; NS-2;

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References


Audah, L., Sun, Z. and Cruickshank, H. 2010. End-to-End QoS of IPDiffserv Network over LEO Satellite Constellation. Proceedings of 2nd International ICST Conference on Personal Satellite Services (PSAT). Rome, Italy. 99-113.

Nichols, K., Blake, S., Baker, F., Black, D. 1998. Definition of the Differentiated Services Field (DS Field) in the IPv4 and IPv6 Headers. IETF Network Working Group, RFC 2474.

Blake, S., Black, D., Carlson, M., Davies, E., Wang, Z., Weiss, W. D. 1998. Architecture for Differentiated Services. IETF Network Working Group, RFC 2475.

Kaur, S. and Singh, G. 2015. Implementation of Differential Services Based on Priority, Token Bucket, and Round Robin Algorithms. International Journal of Computer Science and Mobile Computing. 4(5): 810-818.

Marzuki, A.N.A., Othman, M., Sembiyev, O. and Selamat, H. 2014. Enhancement of Adaptive Factor Provision Aware Proportional Three Color Marker in Diffserv Network. Proceedings of International Conference of Industrial Technologies and Engineering (ICITE).Kazakhstan. 86-92.

Katsikogiannis, G., Mitropoulos, S. and Douligeris, C. 2013. PolicyBased QoS Management for SLA-Driven Adaptive Routing. Journal of Communications and Networks. 15(3): 301-311.

El-Atawy, A. and Samak, T. 2012. End-to-End Verification of QoS Policies. IEEE Network Operations and Management Symposium (NOMS). 426-434.

Fall, K. and Varadhan, V. 2011. The ns Manual (Formerly ns Notes and Documentation). The VINT Project (Researchers Collaboration). California: University California Berkeley.

Altman, E. and Jimenez, T. 2003. NS Simulator for Beginners. Lecture Notes. Merida: University de Los Andes.

Fang, W., Seddigh, N. and Nandy, B. 2000. A Time Sliding Window Three Color Marker (TSW3CM). IETF Network Working Group, RFC 2859.

Stallings, W. 2007. Data and Computer Communications. 8th edition. Upper Saddle River, New Jersey: Pearson Prentice Hall.

Heinanen, J., Finland, T. and Guerin, R. 1999. A Single Rate Three Color Marker (SRTCM). IETF Network Working Group, RFC 2697.

Szigeti, T. and Hattingh, C. 2014. QoS Design Overview. End-to-End QoS Network Design: Quality of Service in LANs, WANs and VPNs. 1st edition. Indianapolis: Cisco Press.


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ISSN: 2180-1843

eISSN: 2289-8131