Planning For Success - Wireless Network Design, Analysis, and Troubleshooting
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The document discusses the design, analysis, and troubleshooting of wireless networks, emphasizing the importance of planning and verification during deployment. It highlights real-world case studies, such as Purdue University and Liberty University, showcasing the necessity of robust architectures and tools for effective management. Additionally, it outlines the product offerings from WildPackets, focusing on solutions that enhance network performance and visibility.
Planning For Success - Wireless Network Design, Analysis, and Troubleshooting
- 1. Planning for SuccessWireless Network Design, Analysis, and TroubleshootingShow us your tweets!Use today’s webinar hashtag:#wp_wifiwith any questions, comments, or feedback.Follow us @wildpacketsJay BotelhoDirector of Product ManagementWildPacketsjbotelho@wildpackets.comFollow me @jaybotelho
- 2. AgendaThe Wi-Fi LifecycleThe Importance of DesignVerification of AssumptionsDeployment and RecalibrationMonitoring and TroubleshootingManaging Expanded UsageCompany OverviewProduct Line Overview
- 4. The Wi-Fi Life Cycle Has a Lot to ConsiderManagementTroubleshootingExpansion”How to resolve issues and cope with changes? How to expand the network?”Network Designand Requirements”How to create a high performance Wi-Fi network?”DeploymentandVerification”Does my network function as required?”Ensure coverageVerify performanceCheck correct AP configurationsTest end-to-end network operationSee the network coverage and performance during and after deploymentSolve Wi-Fi issues, such as802.11n issues
- 6. Rogue APs, Broken APs
- 7. Coverage holes / leakage
- 8. Plan for added capacity or coverageSee network trouble spots and find corrective measuresSee the impact of added access points or new technologiesDefine applications to be usedDefine areas to be coveredFind locations for the APsDetermine AP configurationsFind optimal antennas and their alignmentSee the network coverage and performance prior to depoymentCopyright © 2011 Ekahau. All Rights Reserved
- 9. The Importance of Design
- 10. Example – Purdue University"The management of our wireless network, when you boil it down, is three people. It's three busy people, but not three suicidal people." - Scott Ksander, Executive Director of Networks and Security6,000 802.11n APs, 265 buildings, 10,000 usersUsing a controller-based architecture is a mustUses Cisco software for centralized monitoring but requires specific trouble-shooting tools for the field11n is a must – Purdue learned the hard way that large lecture halls with 802.11bg APs could not tolerate 600 students logging in at the same timeSource: http://searchnetworking.techtarget.com/news/article/0,289142,sid7_gci1373978,00.html
- 11. The Real World at Liberty UniversityMulti-channel, IP-based video (IPTV) over wirelessProvide roaming students with universal access to multi-channel videoDelivery of 15 live TV channelsLiberty's campus channel as well as ABC, CBS, CNN, ESPN, FOX, NBC, and a range of other broadcasters Serves 46,000 local/remote students and 2,600 FTEsNetwork includes more than 770 Aruba 802.11n access pointsSource: http://www.marketwire.com/press-release/Liberty-University-Launches-Campus-Wide-Wireless-IPTV-Using-80211n-Wi-Fi-From-Aruba-NASDAQ-ARUN-1069662.htm
- 12. Ekahau Site Survey (ESS)Visual, Enterprise-grade Wi-Fi toolkit for3D Network DesignDeployment and VerificationTroubleshootingCreated for IT administrators / managers and wireless professional services personsFor anyone dealing with a Wi-Fi network of over 10 APsSoftware application, runs on Windows laptops (XP/Vista/7 32/64bit)Supports 802.11n, and 802.11a/b/gCopyright © 2011 Ekahau. All Rights Reserved
- 13. Automatic Network PlanningAutomatically find optimal number of APs, AP placement, and configurations based on your requirementsSelect your requirement, such as VoIPSelect AP model and AP parametersIndicate desired coverage areasESS calculates the locations and configurations for the APs for the entire building – in 3D!Fully supports 802.11nCopyright © 2011 Ekahau. All Rights Reserved
- 14. Manual Network PlanningFine-tune the network using one-click AP placement, directional antennas, downtilt, etc.Crystal-clear user interfaceEasy-to-read coverage and performance mapsHundreds of access points and antennas to choose fromSupport for:802.11n / MIMOMulti-radio APsDirectional antennasAntenna downtilt, etc.Accurate 3D planningallows seeingsignal leakage and interference travelling through floorsCopyright © 2011 Ekahau. All Rights Reserved
- 15. Integration with Cisco WCS and Avaya NMSSimplifies and makes things faster with leading infrastructure vendorsCrystal-clear user interfaceEasy-to-read coverage and performance mapsHundreds of access points and antennas to choose fromSupport for:802.11n / MIMOMulti-radio APsDirectional antennasAntenna downtilt, etc.Accurate 3D planningallows seeingsignal leakage and interference travelling through floorsCopyright © 2011 Ekahau. All Rights Reserved
- 17. Coverage and Performance VisualizationsVisualize various network parameters, perform in-depth analysis and simulationsVisualizations can be shown any group of APs (My, All, per SSID, per channel, only 802.11n, etc)Visualizations for coverage, data rate, AP overlap, signal-to-noise ratio, roaming, interference, packet loss, network response times, ...Crystal-clear, easy-to-read visualizationsCopyright © 2011 Ekahau. All Rights Reserved
- 18. 802.11nDesign, deploy and troubleshoot 802.11n effectivelyNetwork planning includes tens of 802.11n access points and antennasSee 802.11n data rates, and areas of 40MHz channels802.11n access point charateristics (Greenfield, SGI, channel bonding, multiple spatial streams /MIMO) in the AP listCopyright © 2011 Ekahau. All Rights Reserved
- 20. Network Health AnalysisSee overall network health status in a single viewNetwork Health visualization shows whether your network works or not in each locationNetwork requirements can be selected for VoIP, e-mail, RTLS, etc. Customized profiles also supported.Green = everything works as it should Red = one or more requirements are not met.Copyright © 2011 Ekahau. All Rights Reserved
- 21. Troubleshooting – Wi-FiTroubleshoot network issues on-the-spot, or after surveyNetwork IssuesVisualization pinpoints network problem locations and causes with a single viewInstant, on-the-spot assessmentusing the Live Network Status view. Take the laptop the problematic location and see what’s wrong.Each color represents a different cause for network errors:Low signal or data rate, insufficient overlap, high packet loss, high latency timesCopyright © 2011 Ekahau. All Rights Reserved
- 23. Troubleshooting - Spectrum AnalysisRF intensity (the higher the more intense)Momentary RF intensity (blue = max, green = avg)A wireless camera was first turned off, then switched on to cause an RF havocFind issues caused by non-802.11 devices, such as microwave ovens, wireless cameras, motion detectors, and Zigbee.RF activity over time (bottom is now, top is 2,5 minutes ago)Wi-Fi Channels 1-3 are mostly affected by the deviceCopyright © 2011 Ekahau. All Rights Reserved
- 24. Distributed Network AnalysisThinAPsRemote SoftwareProbe with WirelessAdaptersWLANControllerNetwork USB Hubwith Wireless Adapters
- 25. Wireless Network Analysis RequirementsPortable and remote analysis in a single packageExtensive, commercially available wireless adaptersFull 7-layer analysisVoice and video analysisRoaming analysisMulti-channel analysisFlexible options for remote analysis
- 26. Unified Wired and WirelessPrivateNetworkor theInternetAccessPointAuthServerWLANControllerRouterAir-linkEthernetEthernetSecurity protocols and policyRogue APs and clientsAd-hoc networksWireless security attacksQoS configuration and useSignal strengthDropped packets and retriesTracking wireless packets onto the wired networkQoS configuration and useVPN/MPLSApplication vs. network latency
- 27. Comparing Wired and Wireless Is Essential
- 29. Wireless RoamingCampus-wide deployments imply frequent roamingRoaming is the cause of many wireless issuesVoice and video are especially sensitiveRoaming analysis requires detailed and accurate measurements from many perspectives
- 31. Identify Weaknesses As Network ExpandsNetwork IssuesVisualization pinpoints network problem locations and causes with a single viewInstant, on-the-spot assessmentusing the Live Network Status view. Take the laptop the problematic location and see what’s wrong.Each color represents a different cause for network errors:Low signal or data rate, insufficient overlap, high packet loss, high latency timesCopyright © 2011 Ekahau. All Rights Reserved
- 32. WLANs Carry Everything!Analysis At All Network Layers Is Essential
- 33. Expand Analysis for New Services: Voice and VideoVoFi CallWired VoIP Call
- 34. Company Overview
- 35. Corporate BackgroundExperts in network monitoring, analysis, and troubleshootingFounded: 1990 / Headquarters: Walnut Creek, CAOffices throughout the US, EMEA, and APACOur customers are leading edge organizationsMid-market, and enterprise lines of businessFinancial, manufacturing, ISPs, major federal agencies,state and local governments, and universitiesOver 7,000 customers / 60+ countries / 80% of Fortune 1,000Award-winning solutions that improve network performanceInternet Telephony, Network Magazine, Network Computing AwardsUnited States Patent 5,787,253 issued July 28, 1998Different approach to maintaining availability of network services
- 36. What We DoProvide network visibility and intelligence …WatchPoint, OmniPeek, OmniEnginesExpert systems – we find the problems for youSuperior drill-down capability – trouble-shoot from anywhereFlexible, customizable, extensible – leverage your investmentProfessional services, training, best practicesFor all network segments …Data center to desktop to remote officeLAN, WAN, Wireless …HTTP, Email, Database, VoIP, Video …To …Network engineers; IT Management; Developers
- 37. Real-World DeploymentsEducationFinancialGovernmentHealth Care / RetailTelecomTechnology
- 38. With accurate visibilityinto the network…IT staff can improve:End-user ProductivityNetwork PerformanceApplication PerformanceSecurityCompliance
- 40. Product OfferingsSoftware and Turnkey AppliancesEnterprise Monitoring and ReportingWatchPoint ServerOmniFlow, NetFlow, and sFlow CollectorsNetwork Probes & RecordersOmnipliance Network Recorders – Edge, CoreTimeLine Network RecorderOmniAdapter Analysis CardsDistributed Analysis SoftwareOmniPeek – Enterprise, Professional, Basic, ConnectOmniEngine – Enterprise, Desktop, OmniVirtualPortable SolutionsOmniPeek softwareOmnipliance Portable
- 41. WatchPointCentralized Monitoring for Distributed Enterprise NetworksHigh-level, aggregated view of all network segmentsMonitor per campus, per region, per country Wide range of network dataNetFlow, sFlow, OmniFlow, SNMPWeb-based, customizable network dashboardsFlexible and detailed reports
- 43. Omnipliance Network RecordersCaptures and analyzes all network traffic at the source 24x7Runs our OmniEngine intelligent probe softwareGenerates vital statistics on network and application performanceIntuitive root-cause analysis of performance bottlenecksIntelligent data transportNetwork data analyzed locallyDetailed analysis passed to OmniPeek on demandSummary statistics sent to WatchPoint for long term trending and reportingEfficient use of network bandwidthExpert analysis speeds problem resolutionFault analysis, statistical analysis, and independent notificationMultiple Issue Digital ForensicsReal-time and post capture data mining for compliance and troubleshooting
- 44. TimeLine Network Recorder11.7Gbps Sustained CaptureFastest network recording and real-time statistical display — simultaneouslyNetwork statistics display in TimeLine visualization formatRapid, intuitive forensics search and retrievalHistorical network traffic analysis and quick data rewindingSeveral pre-defined forensics search templates making searches easy and fastA natural extension to the WildPackets product lineTurnkey bundled solution
- 45. Omnipliance Network RecordersPrice/performance solutions for every application
- 46. OmniPeek Network AnalyzerOmniEngine ManagerConnect and configure distributed OmniEngines/OmnipliancesComprehensive dashboards present network traffic in real-timeVital statistics and graphs display trends on network and application performanceVisual peer-map shows conversations and protocolsIntuitive drill-down for root-cause analysis of performance bottlenecksVisual Expert diagnosis speeds problem resolutionPacket and Payload visualization provide business-centric viewsAutomated analytics and problem detection 24/7Easily create filters, triggers, scripting, advanced alarms and alerts
- 47. Key DifferentiatorsHigh-level network monitoring to root-cause analysisSingle solution for today’s converged networksWired, Wireless, 1GB, 10GB, VoIP, Video, TelePresence, IPTVReduce and even eliminate network downtimeAutomated monitoring 24x7Speedy resolution of network bottlenecksImprove network and application performanceUniquely Extensible Platform – tailored to your needsPlug-ins and APIs for integration and customization
- 48. Q&AShow us your tweets!Use today’s webinar hashtag:#wp_wifiwith any questions, comments, or feedback.Follow us @wildpacketsFollow us on SlideShare!Check out today’s slides on SlideSharewww.slideshare.net/wildpackets
- 49. Thank You!WildPackets, Inc.1340 Treat Boulevard, Suite 500Walnut Creek, CA 94597(925) 937-3200