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The Research and Implementation of Self Adaptive Traffic Classification Control Technology

Author: ZongXiPeng
Tutor: ChenShanZhi
School: Beijing University of Posts and Telecommunications
Course: Computer Science and Technology
Keywords: Queue scheduling Qdisc Flow Control Traffic Shaping Business classification
CLC: TP393.05
Type: Master's thesis
Year: 2011
Downloads: 19
Quote: 0
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Abstract


The router stable network able to provide reliable data forwarding services to maintain optimal performance in specific network environment . Dynamic changes in the network environment , the routers provide routing and queue scheduling policy is not to have the ability to automatically adjusted according to changes in the network environment , and can not provide reliable data forwarding services in a dynamic network environment , to ensure the quality of service of the business . Therefore need to study business grading services and priority control technology with environmental adaptive capacity , to be adjusted according to the state of the network routing and queue scheduling policy , thereby reasonable adjustments to the allocation of network resources and guarantee the quality of service of the business . In view of the above problems , this work mainly includes four aspects , research and analysis of the of IP Qos mechanism and key technologies ; Second, traffic control method on Linux systems and implementations ; Third , adaptive queue scheduling policy control technology and its implementation : fourth , research forward control technology and broadband business classification . Flow control methods and implementations of Linux systems , this paper focuses on the analysis of QoS support of the Linux operating system , including the queue , the queue scheduling algorithm , traffic shaping , congestion control , token bucket algorithm research and analysis the code Linux traffic control , and in-depth analysis of the implementation process . Study adaptive queue scheduling policy control technology and its implementation aspects in depth understanding of the the Linux flow control mechanism on the basis of the proposed and implemented the provisions of a new queue the PDQ ( priority the drr queuing is the ) in PDQ queue regulations contains two queue scheduling algorithm PQ ( Priority queue) , DRR ( DeFicit Round Robin) , and in accordance with changes in the network environment to achieve rapid switching of the two scheduling policies . Research and broadband services grading forwarding control technology , this article provides two business classification forwarding control technologies, including the forward link detection based business grade the forward control technology and the business classification based on traffic monitoring control technology , and specific experimental data and analytical results , graded forward control technology for the development of broadband services has high reference value .

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