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2003•Journal of Hunan UniversityRequires access

Research and Performance Analysis of IP QoS Control Mechanisms Based on DiffServ

QU Wei-lan

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Abstract

The IP QoS is becoming one of the core technologies of IP network, and the DiffServ model is receiving wide attention as an architecture for implementing services guarantees in the Internet. This paper first analyzed the IP QoS control mechanisms based on DiffServ, including the buffer management, queue schedule algorithms and congestion control mechanisms etc. Then a DiffServ simulation platform was built after the DiffServ model was modified in NS2 under Linux environment. The modified DiffServ model was simulated, and its performances were discussed.

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What this paper is about

The IP QoS is becoming one of the core technologies of IP network, and the DiffServ model is receiving wide attention as an architecture for implementing services guarantees in the Internet. This paper first analyzed the IP QoS control mechanisms based on DiffServ, including the buffer management, queue schedule algorithms and congestion control mechanisms etc. Then a DiffServ simulation platform was built after the DiffServ model was modified in NS2 under Linux environment. The modified DiffServ model was simulated, and its performances were discussed.

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Available abstract

The IP QoS is becoming one of the core technologies of IP network, and the DiffServ model is receiving wide attention as an architecture for implementing services guarantees in the Internet. This paper first analyzed the IP QoS control mechanisms based on DiffServ, including the buffer management, queue schedule algorithms and congestion control mechanisms etc. Then a DiffServ simulation platform was built after the DiffServ model was modified in NS2 under Linux environment. The modified DiffServ model was simulated, and its performances were discussed.

Key concepts: Quality of service, Computer network, Computer science, Differentiated services, Queue, Active queue management, The Internet, Schedule

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