CCIP-v2 2 pptISP 运营商系列QOS22S03L02-del不用看VIP

IntroductiontoModularQoSCLIandAutoQoS,IntroducingCiscoAutoQoSVoIP,AutoQoSVoIP,OnecommandperinterfacetoenableandconfigureQoS,AutoQoSVoIP(Cont.),interfaceMultilink1ipaddressiptcpheader-compressioniphc-formatload-interval30service-policyoutputQoS-Policypppmultilinkpppmultilinkfragment-delay10pppmultilinkinterleavemultilink-group1iprtpheader-compressioniphc-format!interfaceSerial0bandwidth256noipaddressencapsulationpppnoipmroute-cacheload-interval30nofair-queuepppmultilinkmultilink-group1,interfaceSerial0bandwidth256ipaddressautoqosvoip,AutoQoS,ManualQoS,AutoQoS(Cont.),ApplicationClassificationAutomaticallydiscoversapplicationsandprovidesappropriateQoStreatmentPolicyGenerationAutomaticallygeneratesinitialandongoingQoSpoliciesConfigurationProvideshigh-levelbusinessknobs,andmulti-device/domainautomationforQoSMonitoring&ReportingGeneratesintelligent,automaticalertsandsummaryreportsConsistencyEnablesautomatic,seamlessinteroperabilityamongallQoSfeaturesandparametersacrossanetworktopologyLAN,MAN,andWAN,AutoQoSVoIP:RouterPlatforms,Cisco1760,1800,2600,2800,3600,3700,3800,and7200seriesroutersYoucanmeetthevoiceQoSrequirementswithoutextensiveknowledgeabout:Underlyingtechnologies(forexample:PPP,FR,ATM)ServicepoliciesLinkefficiencymechanismsAutoQoSlendsitselftotuningofallgeneratedparameters&configurations,AutoQoSVoIP:SwitchPlatforms,CiscoCatalyst2950,2960,2970,3550,3560,3750,4500,and6500seriesswitchesYoucanmeetthevoiceQoSrequirementswithoutextensiveknowledgeabout:TrustboundaryCoS-to-DSCPmappingsWRR&PQschedulingparametersGeneratedparametersandconfigurationsareuser-tunable,AutoQoSVoIP:SwitchPlatforms(Cont.),SinglecommandattheinterfacelevelconfiguresinterfaceandglobalQoSSupportforCiscoIPPhone&CiscoSoftPhoneSupportforCiscoSoftPhonecurrentlyexistsonlyontheCatalyst6500TrustboundaryisdisabledwhenIPPhoneismovedBufferallocationandegressqueuingdependentoninterfacetype(GigabitEthernet/FastEthernet)Supportedonstatic,dynamic-access,voiceVLANaccess,andtrunkportsCDPmustbeenabledforAutoQoStofunctionproperly,ConfiguringAutoQoSVoIP:PrerequisitesforUsingAutoQoSVoIP,CEFmustbeenabledattheinterfaceorATMPVC.ThisfeaturecannotbeconfiguredifaQoSpolicy(servicepolicy)isattachedtotheinterface.Aninterfaceisclassifiedaslow-speedifitsbandwidthislessthanorequalto768kbps.Itisclassifiedashigh-speedifitsbandwidthisgreaterthan768kbps.Thecorrectbandwidthshouldbeconfiguredonallinterfacesorsubinterfacesusingthebandwidthcommand.Iftheinterfaceorsubinterfacehasalinkspeedof768kbpsorlower,anipaddressmustbeconfiguredusingtheipaddresscommand.,ConfiguringAutoQoSVoIP:Routers,autoqosvoiptrustfr-atm,router(config-if)#orrouter(config-fr-dlci)#,ConfigurestheAutoQoSVoIPfeature.Untrustedmodebydefault.trust:IndicatesthattheDSCPmarkingsofapacketaretrusted(reliedon)forclassificationofthevoicetraffic.fr-atm:Forlow-speedFrameRelayDLCIsinterconnectedwithATMPVCsinthesamenetwork,thefr-atmkeywordmustbeexplicitlyconfiguredintheautoqosvoipcommandtoconfiguretheAutoQoSVoIPfeatureproperly.,ConfiguringAutoQoSVoIP:CiscoCatalyst6500Switch,Console(enable)setqosautoqosQoSisenabled.AllingressandegressQoSschedulingparametersconfiguredonallports.CoStoDSCP,DSCPtoCOS,IPPrecedencetoDSCPandpoliceddscpmapsconfigured.GlobalQoSconfigured,portspecificautoqosrecommended:setportqosautoqostrustsetportqosautoqosvoip,setqosautoqos,Console(enable),Globalconfigurationcommand.AlltheglobalQoSsettingsareappliedtoallportsintheswitch.PromptdisplaystheCLIfortheport-basedautomaticQoScommandscurrentlysupported.,ConfiguringAutoQoSVoIP:CiscoCatalyst6500Switch(Cont.),setportqosautoqostrustcos|dscp,Console(enable),trustdscpandtrustcosareautomaticQoSkeywordsusedforportsrequiringa“trustall”typeofsolution.trustdscpshouldbeusedonlyonportsthatconnecttootherswitchesorknownservers,becausetheportwillbetrustingallinboundtrafficmarkingLayer3(DSCP).trustcosshouldonlybeusedonportsconnectingotherswitchesorknownservers,becausetheporttrustsallinboundtrafficmarkinginLayer2(CoS).ThetrustedboundaryfeatureisdisabledandnoQoSpolicingisconfiguredonthesetypesofports.,ConfiguringAutoQoSVoIP:CiscoCatalyst6500Switch(Cont.),setportqosautoqosvoipciscosoftphone|ciscoipphone,Console(enable),ciscosoftphoneThetrustedboundaryfeaturemustbedisabledforCiscoSoftPhoneports.QoSsettingsmustbeconfiguredtotrusttheLayer3markingsofthetrafficthatenterstheport.AvailableonmostCatalystplatforms.ciscoipphoneTheportissetuptotrust-cosaswellastoenablethetrustedboundaryfeature.CombinedwiththeglobalautomaticQoScommand,allsettingsareconfiguredontheswitchtoproperlyhandlethesignalingandvoicebearerandPCdataenteringandleavingtheport.CDPmustbeenabledfortheciscoipphoneQoSconfiguration.,ConfiguringAutoQoSVoIP:Catalyst2950(EI),3550Switches,autoqosvoiptrust,Switch(config-if)#,Theuplinkinterfaceisconnectedtoatrustedswitchorrouter,andtheVoIPclassificationintheingresspacketistrusted.,autoqosvoipcisco-phone,Switch(config-if)#,Automaticallyenablesthetrustedboundaryfeature,whichusestheCDPtodetectthepresenceorabsenceofaCiscoIPPhone.IftheinterfaceisconnectedtoaCiscoIPPhone,theQoSlabelsofincomingpacketsaretrustedonlywhentheIPPhoneisdetected.,MonitoringAutoQoSVoIP:Routers,showautoqosinterfaceinterfacetype,router,routershowautoqosinterfaceSerial6/0Serial6/0!interfaceSerial6/0service-policyoutputAutoQoS-Policy-UnTrust,Displaystheinterfaceconfigurations,policymaps,classmaps,andACLscreatedonthebasisofautomaticallygeneratedconfigurations,MonitoringAutoQoSVoIP:Routers(Cont.),routershowpolicy-mapinterfaceFastEthernet0/0.1FastEthernet0/0.1Service-policyoutput:voice_trafficClass-map:dscp46(match-any)0packets,0bytes5minuteofferedrate0bps,droprate0bpsMatch:ipdscp460packets,0bytes5minuterate0bpsTrafficShapingTargetByteSustainExcessIntervalIncrementAdaptRateLimitbits/intbits/int(ms)(bytes)Active250010000100003331250-restdeleted,showpolicy-mapinterfaceinterfacetype,router,Displaysthepacketstatisticsofallclassesthatareconfiguredforallservicepolicies,oneitherthespecifiedinterfaceorsubinterface,MonitoringAutoQoSVoIP:Switches,showautoqosinterfaceinterface-id,Switch#,Switch#showautoqosInitialconfigurationappliedbyAutoQoS:wrr-queuebandwidth201800nowrr-queuecos-mapwrr-queuecos10124wrr-queuecos3367wrr-queuecos45mlsqosmapcos-dscp08162632464856!interfaceFastEthernet0/3mlsqostrustdevicecisco-phonemlsqostrustcos,DisplaystheAutoQoSconfigurationthatwasinitiallyappliedDoesnotdisplayanyuserchangestotheconfigurationthatmightbeineffect,MonitoringAutoQoSVoIP:Switches(Cont.),Switch#showmlsqosinterfacegigabitethernet0/1statisticsIngressdscp:incomingno_changeclassifiedpoliceddropped(inbytes)1:00000Others:2032169352423424217898269300Egressdscp:incomingno_changeclassifiedpoliceddropped(inbytes)1:0n/an/a00WREDdropcounts:qidthresh1thresh2FreeQ1:0010242:001024restdeleted,showmlsqosinterfaceinterface-id|vlanvlan-idbuffers|policers|queueing|statistics|begin|exclude|includeexpression,Switch#,DisplaysQoSinformationattheinterfacelevel,MonitoringAutoQoSVoIP:Switches(Cont.),showmlsqosmapscos-dscp|dscp-cos|dscp-mutationdscp-mutation-name|dscp-switch-priority|ip-prec-dscp|policed-dscp|begin|exclude|includeexpression,Switch#,Switch#showmlsqos