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模塊內(nèi)容部署方法部署需求ProtocolComparison企業(yè)無(wú)線網(wǎng)Coverage&capacity確定AP數(shù)量和位置ZfactordesignSiteSurvey驗(yàn)證無(wú)線網(wǎng)部署模塊內(nèi)容部署方法DetermineDeploymentRequirementsAssessDetermineAPCount&PlacementDeployPlaceAccessPointsSurveyWLANVerifyPlanningToolsSiteSurveyZFactor部署方法DetermineDeploymentRequiremeProtocolrequirements802.11b/g802.11aClientdevicesWNICPDAPhoneClientdensityTypicalPeakExpectedthroughput802.11bistypically2Mbps802.11gistypically11-14Mbps802.11gistypically2-4Mbpswith802.11bclientspresents802.11aistypically11-14Mbps部署需求
容量考慮Protocolrequirements部署需求
容量考慮協(xié)議比較ThestandardsthatmustbesupportedbyanenterpriseWLANareusuallydictatedbythedevicesthatrequiresupport.Currently802.11bclientsarepredominantbutwhatisrightanswerforyourenterpriseWLANsolution?802.11bPro:HighestmarketpenetrationCon:Moreinterference&noisemaybefoundinthe2.4GHzbandCon:Onlyprovides3non-overlappingchannelsCon:CansufferfrommultipathissuesCon:Clientdriverquality(consumerversusenterprise)802.11gPro:HigherthroughputPro:OFDMtechnologyreducesmultipathissuesCon:Moreinterference&noisemaybefoundinthe2.4GHzbandCon:Onlyprovides3non-overlappingchannelsCon:Throughputdegradedinthepresenceof802.11bclients802.11aPro:HigherthroughputPro:OFDMtechnologyreducesmultipathissuesPro:ProvidesFCC24non-overlappingchannelsCon:Lowermarketpenetration802.11nPro:MIMO/Channelcombined/PacketAggregationprovideMoreStableconnection,higherperformanceandlongerdistanceCon:NotfinalizedyetCon:Needmorepower協(xié)議比較ThestandardsthatmustbeCoverageAreasFullorpartialCoverageHoleGoal0%-10%(Typically2%–5%)BuildingConstructionTypeTypicalOffices(cubesandwalledoffices)WalledOffices(drywallofficeonly)WalledOffices(brickandconcretewalledoffices)Other(examplearenas,stockexchange,conventioncenter,largewarehouse)BuildingCharacteristicsHomogeneous–sameconstructiontypethroughoutCubesandwalledofficesthroughoutand/orfloortofloorHeterogeneous–mixedconstructiontypesDrywallofficeareawithshippingwarehouseinback部署需求
覆蓋CoverageAreas部署需求
覆蓋部署需求
障礙物考慮NormalconstructionprovidesamyriadofwirelessobstaclesDistantcornersWalledofficeareaBreakroomwithmicrowaveConcretewallswithironrebarHighmountingpositionsMeetingroomwithhighpeakusersElevatorshaftandstairwells部署需求
障礙物考慮Normalconstruction部署需求
提問(wèn)HowmanyaccesspointsdoIneed?PurchasemoreAPthandeterminedAPcountAtbestcase,willallowover-deploymenttoensureseamlesscoverageandhighercapacityallowingCiscoAirespacecontrollertocompensateforoverlapAtworstcase,willcoverunforeseencoverageholeWhereshouldIplacetheaccesspoints?PlaceAPwhereWLANclientswillbelocatedDoplaceAPinameetingroomasopposedtoanadjacenthallwayDoplaceAPinacentrallocationwhichcancoverseveralwalledofficesDonotplaceAPsinawiringclosetPlaceAPinthemiddleofcoverageareasHowmanycontrollerswillIneed?ProvideenoughcontrollerstoperformthesuggestedhighavailabilityschemesavailabletoprovideenterprisereliabilityWhereshouldIplacethecontrollers?Placethecontrollersindifferentwiringclosettoreducepowerlossissues部署需求
提問(wèn)Howmanyaccesspoints部署需求
AP擺放OvercubiclesoutsideofofficesInmeetingroomwithhighpeakusersInsideloadbearingwallsPositionedtocover2roomswithnon-loadbearingwalls部署需求
AP擺放Overcubiclesoutside企業(yè)無(wú)線網(wǎng)
覆蓋和容量80ftBasiccoverage,lowcostEnterprisecoverage&capacity60ft802.11a: 11-14Mbps802.11g: 11-14Mbps802.11b/g: 2/2-4Mbps802.11b: 2MbpsGraphicisusingonly3channelsforinterferenceavoidance企業(yè)無(wú)線網(wǎng)
覆蓋和容量80ftBasiccoverage企業(yè)無(wú)線網(wǎng)
策略Smaller,overlappingcellsIncreasedaveragecapacity802.11acanprovidemorechannelstoreduceinterferenceProvideshigheravailabilityintheeventofanAPfailureAPsshouldnotbeplacedtooclosetogethersinceclientswillstilltransmitatnormalpoweroutputClientscancauseinterferenceissueswithotherAPSandclientsEnterprisecoverage&capacity60ft802.11a: 11-14Mbps802.11g: 11-14Mbps802.11b/g: 2/2-4Mbps802.11b: 2MbpsGraphicisusingonly3channelstoshowoptiontoavoidinterference企業(yè)無(wú)線網(wǎng)
策略Smaller,overlappingc確定AP數(shù)量和位置
ZFactorZfactorallowsconversionofanAPcoverageareatosquarefootageTogetherwiththebuildingtypeandaveragedesireduserperformance,theZfactorcalculationcanquicklyestimatethenumberofrequiredAPs確定AP數(shù)量和位置
ZFactorZfactoralIncreasedsignalstrengthmeansgreaterthroughputlimitedbysignalstandard802.11awillhaveincreasedthroughputoverawiderrangethan802.11bZFactor
PremiseAverageSignalIncreasedsignalstrengthmeanZFactor
BuildingReferenceZFactor
BuildingReferenceZFactor
AP數(shù)量NextdefinethecoverageareaforeachfloorinthebuildingDivideintorectangles,thencalculateAPsneededbydividingtheareaofeachrectanglebytheZfactorsquaredExampleisforatypicalofficebuildingwithadesiredaverageuserthroughputof5MbpsDuetothegainofanCisco1000seriesAP,10%moreAPshouldbeaddedfromagivencalculationZFactor
AP數(shù)量NextdefinetheZFactor
AP位置PlacetheAPinthecenterofthecoverageareasExampleisforomnidirectionalantennaDuetothegainofanCisco1000seriesAP,APshouldbestaggeredtoaccommodatecoverageareashapeZFactor
AP位置PlacetheAPin確定AP數(shù)量和位置
SiteSurveyMorerigorousmethodtodetermineAPcountandplacementZFactorcalculationcanbeusedtodetermineAPcountwhileSiteSurveycanbeusedforactualAPplacementRequiresmeasurementofactualcoverageareastodeterminecorrectplacement確定AP數(shù)量和位置
SiteSurveyMorerigoSiteSurvey
OverviewCisco1000seriesAPsareconfiguredforsitesurveymodeFirstAPisplacedatazero/zerocoordinateandthentheEkahauSiteSurveyToolisusedtodeterminecoverageboundaryThenplaceAPoncoverageboundaryinthemiddleofthecoverageareaThenuseEkahauSiteSurveyTooltodeterminenewcoverageboundaryThenplaceadditionalAPwithRFcoverageareasadjacenttoplacedAPThenuseEkahauSiteSurveyToolagaintodetermineadditionalcoverageboundariesAsinglesetofCisco1000seriesAPscanbemovedtodifferentlocationsonthebuildingflooruntilallAPplacementisdefinedEkahauSiteSurveytoolshouldbeusedtoverifythefinalAPplacementanddocumenttheWLANSiteSurvey
OverviewCisco1000SiteSurvey
Cisco1000seriesAPSiteSurveyModeRequiresopeningofCisco1000seriesAPandsettingofinternaljumperRequirespoweringofCisco1000seriesAPInsitesurveymode,theCisco1000seriesAPisbeacononlydeviceandwillnotsupportdataormonitoringservicesInsitesurveymode,theCisco1000seriesAPTransmitpoweris18dBmfor802.11aonchannel52Transmitpoweris19dBmfor802.11bonchannel11Insitesurveymode,theCisco1000seriesAPpowerLEDwillflashgreenSitesurveymodewillnotsupportexternalantennaSitesurveymodeisusedexclusivelyforsitesurveysortroubleshootingSiteSurvey
Cisco1000seriesSiteSurvey
Cisco10xxseriesAPSiteSurveyMode(continued)YoumustfirstopenthecoverbyremovingthescrewsatthebaseofSideAwithaT-10securityTorxCisco1000seriesAPSiteSurveyModerequiresaphysicalconfigurationThenyoumustopenthecoverandjumpertheSiteSurveypins1&2SiteSurvey
Cisco10xxseriesSiteSurvey
Cisco10xxseriesAPSiteSurveyMode(continued)Cisco1000seriesAPSiteSurveyModerequiresapowersourceSiteSurvey
Cisco10xxseriesSiteSurvey
AP數(shù)量和位置PlacetheAPat0:0coordinateofacoveragearea(1).Performasitesurveytodeterminethesignalstrengthofthecoveragearea.Markwheretheratefallstotheminimumacceptablevalueuntilyouhavetracedasemi-circularpatternonthefloorwhichwilldeterminethecoverageboundary.MovetheoriginalAPtoacentrallylocatedpositiononthecoverageboundary(2)tocreatethefirstcoveragearea.SiteSurvey
AP數(shù)量和位置PlacetheSiteSurvey
AP數(shù)量和位置(continued)Performasitesurveytodeterminethesignalstrengthofthenewcoveragearea.Markwheretheratefallstotheminimumacceptablevalueuntilyouhavetracedacircularpatternonthefloorwhichwilldeterminethecoverageboundary.Note:BesuretoorientatetheEkahausitesurveylaptopinmultipledirectionstoinsurethatitisnotalwaysdirectlyfacingtheAP.SiteSurvey
AP數(shù)量和位置(continueSiteSurvey
AP數(shù)量和位置(continued)NowplaceanotherAPadjacenttothefirst
coverageareatodetermineanothercoverageareawithappropriateoverlapofthetwoareas.Repeattocreatecoverageareasfortheentirefloor.SiteSurvey
AP數(shù)量和位置(continueVerification
EkahauSiteSurveyToolUsetheEkahauSiteSurveytooltoverifyAPplacementWillshowcoloredmapofexpectedsignalstrength,expectedthroughputorAPcoveragecountVerification
EkahauSiteSurve接受信號(hào)強(qiáng)度
(RSSI)BestindicatorofwirelessperformanceCanbemeasuredbyvariousdevicesEkahauSiteSurveyToolYellowjacket802.11AnalysisToolClientUtilitiesMeasuredindBmUsablerangefrom-60to-80dBmtypically-55dBmorgreaterisexceptionalsignalstrength-85dBmispoorsignalstrength&associationisunlikely接受信號(hào)強(qiáng)度
(RSSI)Bestindicatorof無(wú)線網(wǎng)絡(luò)教學(xué)rch3pd思科無(wú)線網(wǎng)絡(luò)設(shè)計(jì)課件模塊內(nèi)容部署方法部署需求ProtocolComparison企業(yè)無(wú)線網(wǎng)Coverage&capacity確定AP數(shù)量和位置ZfactordesignSiteSurvey驗(yàn)證無(wú)線網(wǎng)部署模塊內(nèi)容部署方法DetermineDeploymentRequirementsAssessDetermineAPCount&PlacementDeployPlaceAccessPointsSurveyWLANVerifyPlanningToolsSiteSurveyZFactor部署方法DetermineDeploymentRequiremeProtocolrequirements802.11b/g802.11aClientdevicesWNICPDAPhoneClientdensityTypicalPeakExpectedthroughput802.11bistypically2Mbps802.11gistypically11-14Mbps802.11gistypically2-4Mbpswith802.11bclientspresents802.11aistypically11-14Mbps部署需求
容量考慮Protocolrequirements部署需求
容量考慮協(xié)議比較ThestandardsthatmustbesupportedbyanenterpriseWLANareusuallydictatedbythedevicesthatrequiresupport.Currently802.11bclientsarepredominantbutwhatisrightanswerforyourenterpriseWLANsolution?802.11bPro:HighestmarketpenetrationCon:Moreinterference&noisemaybefoundinthe2.4GHzbandCon:Onlyprovides3non-overlappingchannelsCon:CansufferfrommultipathissuesCon:Clientdriverquality(consumerversusenterprise)802.11gPro:HigherthroughputPro:OFDMtechnologyreducesmultipathissuesCon:Moreinterference&noisemaybefoundinthe2.4GHzbandCon:Onlyprovides3non-overlappingchannelsCon:Throughputdegradedinthepresenceof802.11bclients802.11aPro:HigherthroughputPro:OFDMtechnologyreducesmultipathissuesPro:ProvidesFCC24non-overlappingchannelsCon:Lowermarketpenetration802.11nPro:MIMO/Channelcombined/PacketAggregationprovideMoreStableconnection,higherperformanceandlongerdistanceCon:NotfinalizedyetCon:Needmorepower協(xié)議比較ThestandardsthatmustbeCoverageAreasFullorpartialCoverageHoleGoal0%-10%(Typically2%–5%)BuildingConstructionTypeTypicalOffices(cubesandwalledoffices)WalledOffices(drywallofficeonly)WalledOffices(brickandconcretewalledoffices)Other(examplearenas,stockexchange,conventioncenter,largewarehouse)BuildingCharacteristicsHomogeneous–sameconstructiontypethroughoutCubesandwalledofficesthroughoutand/orfloortofloorHeterogeneous–mixedconstructiontypesDrywallofficeareawithshippingwarehouseinback部署需求
覆蓋CoverageAreas部署需求
覆蓋部署需求
障礙物考慮NormalconstructionprovidesamyriadofwirelessobstaclesDistantcornersWalledofficeareaBreakroomwithmicrowaveConcretewallswithironrebarHighmountingpositionsMeetingroomwithhighpeakusersElevatorshaftandstairwells部署需求
障礙物考慮Normalconstruction部署需求
提問(wèn)HowmanyaccesspointsdoIneed?PurchasemoreAPthandeterminedAPcountAtbestcase,willallowover-deploymenttoensureseamlesscoverageandhighercapacityallowingCiscoAirespacecontrollertocompensateforoverlapAtworstcase,willcoverunforeseencoverageholeWhereshouldIplacetheaccesspoints?PlaceAPwhereWLANclientswillbelocatedDoplaceAPinameetingroomasopposedtoanadjacenthallwayDoplaceAPinacentrallocationwhichcancoverseveralwalledofficesDonotplaceAPsinawiringclosetPlaceAPinthemiddleofcoverageareasHowmanycontrollerswillIneed?ProvideenoughcontrollerstoperformthesuggestedhighavailabilityschemesavailabletoprovideenterprisereliabilityWhereshouldIplacethecontrollers?Placethecontrollersindifferentwiringclosettoreducepowerlossissues部署需求
提問(wèn)Howmanyaccesspoints部署需求
AP擺放OvercubiclesoutsideofofficesInmeetingroomwithhighpeakusersInsideloadbearingwallsPositionedtocover2roomswithnon-loadbearingwalls部署需求
AP擺放Overcubiclesoutside企業(yè)無(wú)線網(wǎng)
覆蓋和容量80ftBasiccoverage,lowcostEnterprisecoverage&capacity60ft802.11a: 11-14Mbps802.11g: 11-14Mbps802.11b/g: 2/2-4Mbps802.11b: 2MbpsGraphicisusingonly3channelsforinterferenceavoidance企業(yè)無(wú)線網(wǎng)
覆蓋和容量80ftBasiccoverage企業(yè)無(wú)線網(wǎng)
策略Smaller,overlappingcellsIncreasedaveragecapacity802.11acanprovidemorechannelstoreduceinterferenceProvideshigheravailabilityintheeventofanAPfailureAPsshouldnotbeplacedtooclosetogethersinceclientswillstilltransmitatnormalpoweroutputClientscancauseinterferenceissueswithotherAPSandclientsEnterprisecoverage&capacity60ft802.11a: 11-14Mbps802.11g: 11-14Mbps802.11b/g: 2/2-4Mbps802.11b: 2MbpsGraphicisusingonly3channelstoshowoptiontoavoidinterference企業(yè)無(wú)線網(wǎng)
策略Smaller,overlappingc確定AP數(shù)量和位置
ZFactorZfactorallowsconversionofanAPcoverageareatosquarefootageTogetherwiththebuildingtypeandaveragedesireduserperformance,theZfactorcalculationcanquicklyestimatethenumberofrequiredAPs確定AP數(shù)量和位置
ZFactorZfactoralIncreasedsignalstrengthmeansgreaterthroughputlimitedbysignalstandard802.11awillhaveincreasedthroughputoverawiderrangethan802.11bZFactor
PremiseAverageSignalIncreasedsignalstrengthmeanZFactor
BuildingReferenceZFactor
BuildingReferenceZFactor
AP數(shù)量NextdefinethecoverageareaforeachfloorinthebuildingDivideintorectangles,thencalculateAPsneededbydividingtheareaofeachrectanglebytheZfactorsquaredExampleisforatypicalofficebuildingwithadesiredaverageuserthroughputof5MbpsDuetothegainofanCisco1000seriesAP,10%moreAPshouldbeaddedfromagivencalculationZFactor
AP數(shù)量NextdefinetheZFactor
AP位置PlacetheAPinthecenterofthecoverageareasExampleisforomnidirectionalantennaDuetothegainofanCisco1000seriesAP,APshouldbestaggeredtoaccommodatecoverageareashapeZFactor
AP位置PlacetheAPin確定AP數(shù)量和位置
SiteSurveyMorerigorousmethodtodetermineAPcountandplacementZFactorcalculationcanbeusedtodetermineAPcountwhileSiteSurveycanbeusedforactualAPplacementRequiresmeasurementofactualcoverageareastodeterminecorrectplacement確定AP數(shù)量和位置
SiteSurveyMorerigoSiteSurvey
OverviewCisco1000seriesAPsareconfiguredforsitesurveymodeFirstAPisplacedatazero/zerocoordinateandthentheEkahauSiteSurveyToolisusedtodeterminecoverageboundaryThenplaceAPoncoverageboundaryinthemiddleofthecoverageareaThenuseEkahauSiteSurveyTooltodeterminenewcoverageboundaryThenplaceadditionalAPwithRFcoverageareasadjacenttoplacedAPThenuseEkahauSiteSurveyToolagaintodetermineadditionalcoverageboundariesAsinglesetofCisco1000seriesAPscanbemovedtodifferentlocationsonthebuildingflooruntilallAPplacementisdefinedEkahauSiteSurveytoolshouldbeusedtoverifythefinalAPplacementanddocumenttheWLANSiteSurvey
OverviewCisco1000SiteSurvey
Cisco1000seriesAPSiteSurveyModeRequiresopeningofCisco1000seriesAPandsettingofinternaljumperRequirespoweringofCisco1000seriesAPInsitesurveymode,theCisco1000seriesAPisbeacononlydeviceandwillnotsupportdataormonitoringservicesInsitesurveymode,theCisco1000seriesAPTransmitpoweris18dBmfor802.11aonchannel52Transmitpoweris19dBmfor802.11bonchannel11Insitesurveymode,theCisco1000seriesAPpowerLEDwillflashgreenSitesurveymodewillnotsupportexternalantennaSitesurveymodeisusedexclusivelyforsitesurveysortroubleshootingSiteSurvey
Cisco1000seriesSiteSurvey
Cisco10xxseriesAPSiteSurveyMode(continued)YoumustfirstopenthecoverbyremovingthescrewsatthebaseofSideAwithaT-10securityTorxCisco1000seriesAPSiteSurveyModerequiresaphysicalconfigurationThenyoumustopenthecoverandjumpertheSiteSurveypins1&2SiteSurvey
Cisco10xxseriesSiteSurvey
Cisc
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