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Resources Management in Active networks

The Journal of China Universities of Posts and Telecommunications 2003年第1期10卷 66-71页

作者： WANGJian-guo LIZeng-zhi KOUYan-an ComputerDepartment Xi'anInstituteofTechnologyXi’an710032P.R.China InstituteofComputerArchitecture&Network Xi'anJiaotongUniversityXi’an710049P.R.China

In an active network, users can insert customized active codes into activenodes, to execute. Thus it needs more resources than those required by conventional networks, andthese resources must be effectively monitored and managed. Management policies in existing OSs aretoo complicated to apply to simple active packets. In this paper, we present new resourcesmanagement policies that are mainly adoped to manage CPU, storage and transmission ***, we use SPF algorithm to schedule and process active packets, and import an interval queuemethod to allocate transmission bandwidth, and use feedback mechanism to control congestion . At thesame time, we design some experiments on prototype systems with and without resources managementpolicies respectively. The experiments results show that management policies presented by us caneffectively manage resources in active nodes and can improve the performance of active networks.

关键词： active network active node resources management transmission bandwidth

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Research on Dispensing Mechanism of Active Code in Active network

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The Journal of China Universities of Posts and Telecommunications 2003年第3期10卷 50-54页

作者： WANGJian-guo LIZeng-zhi KOUYa-nan ComputerDepartment Xi'anInstituteofTechnologyXi’an710032P.R.China InstituteofComputerArchitecture&Network Xi'anJiaotongUniversityXi’an710049P.R.China

The dispensing mechanism of active code is the key technology in activenetwork. Conventional capsule and programmable switch approaches have their own shortcomings. DCCANmechanism presented in this paper overcomes their shortcomings. In this paper, capsule andprogrammable switch, approaches are introduced and their shortcomings are analyzed. The principle ofDCCAN mechanism is described. The theoretical analyses in transmission bandwidth based on DCCANmechanism and capsule approach are described, and key factors which affect the transmissionbandwidth based on DCCAN mechanism are also discussed. At the same time, the theoretical analyses inlatency based on DCCAN mechanism and capsule approach are described. The using condition of DCCANmechanism is also discussed.

关键词： DCCAN active code capsule programmable switch transmission bandwidth latency

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