menth impact of traffic matrix and routing on the performance of network admission control

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1、UniversityofWurzb¨urgInstituteofComputerScienceResearchReportSeriesImpactofTrafficMatrixandRoutingonthePerformanceofNetworkAdmissionControlMethodsMichaelMenth,StefanKopf,JensMilbrandtReportNo.307February2003DepartmentofDistributedSystemsInstituteofComputerScience,Universityo

2、fWurzb¨urgAmHubland,D-97074Wurzb¨urg,Germanyphone:(+49)931-8886644,fax:(+49)931-8886632menth
kopf
milbrandt@informatik.uni-wuerzburg.deImpactofTrafficMatrixandRoutingonthePerformanceofNetworkAdmissionControlMethodsMichaelMenth,StefanKopf,JensMilbrandtDepartmentofDistribute

3、dSystemsInstituteofComputerScience,UniversityofWurzb¨urgAmHubland,D-97074Wurzb¨urg,Germanyphone:(+49)931-8886644,fax:(+49)931-8886632menth
kopf
milbrandt@informatik.uni-wuerzburg.deAbstractInthispaperweconsidertheperformanceofdifferentnetworkadmissioncontrol(NAC)methods.I

4、ncontrasttolinkadmissioncontrol(LAC),theylimitthetrafficwithinanetworkbydistributedprotocols.WeintroducefourbasicbudgetbasedNACapproachessuchthatmostresourcemanagementschemescanbeclassifiedbythemfromaperfor-mancepointofview.Sincetheyhavedifferentcomplexityandefficiency,wecompa

5、retheirresourceutilizationindifferentnetworkingscenarios.Ourresultsshowthattheperformanceisratherindependentofthetrafficmatrixforrealisticscenarioswhiletheroutingprotocol–single-ormulti-pathrouting–hasasignificantimpactontheresourceefficiencyoftheIB/EBNAC,ILBNAC,andILB/ELBNAC.

6、Thus,ourinvestigationhelpstounderstandtheperformanceimplicationsofdifferentresourceallocationprotocolsandeasesthedesignofefficientnextgenerationQoSnetworks.Keywords:QoS,AdmissionControl,ResourceAllocation,PerformanceEvaluation1IntroductionThenextgenerationoftheInternetisexpe

7、ctedtofullyintegrateallkindsofdataandmediacommunications.Incontrasttotoday'stelephonenetwork,dataconnectionshavevariablebitratesandthemanagementoftheindividualnodesshouldbesimpler.Andincontrasttotoday'sInternet,real-timemultimediaapplicationsexpectmechanismsforincreasedQual

8、ityofService(QoS).Thisimpliesthatfuturenetworksneedalimitationoftraf®cload[1]tomee