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Gigabit WLANs Need Gigabit WLAN Analysis


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The new IEEE 802.11ac standard is changing the rules when it comes WLAN troubleshooting based on packet capture and analysis. No one disagrees that packet-based analysis is the most complete and most accurate when it comes to WLAN troubleshooting, but the software, equipment, and processes required to perform packet-based analysis are being challenged by 802.11ac. Attend this webinar to discover how 802.11ac is changing the rules for packet-based WLAN analysis, and what you can do about it.

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Gigabit WLANs Need Gigabit WLAN Analysis

  1. 1.© WildPackets, Inc. Show us your tweets! Use today’s webinar hashtag: #wp_wirelesspackets with any questions, comments, or feedback. Follow us @wildpackets Jay Botelho Director of Product Management WildPackets Follow me @jaybotelho Gigabit WLANs Need Gigabit WLAN Analysis
  2. 2. © WildPackets, Inc.#wp_wirelesspackets 2 Administrivia • All callers are on mute ‒ If you have problems, please let us know via the Chat window • There will be Q&A at the end ‒ Feel free to type a question at any time • Slides and recording will be available: ‒ Via a follow-up email
  3. 3. © WildPackets, Inc.#wp_wirelesspackets 3 Agenda • 802.11ac – The State of Affairs • WLAN Analysis – Then and Now • OmniPeek for the fastest 802.11ac Networks • Demos • Industry-Leading Analytics
  4. 4.© WildPackets, Inc. 802.11ac The State of Affairs
  5. 5. © WildPackets, Inc.#wp_wirelesspackets 5 802.11ac Highlights • Wider channel bandwidths; More MIMO ‒ 80 MHz and 160 MHz channel ‒ Support for up to 8 spatial streams • Multi-user MIMO (MU-MIMO) ‒ Multiple STAs transmit or receive independent data streams simultaneously ‒ Downlink MU-MIMO (one transmitting device, multiple receiving devices) included as an optional mode • Low level MAC and RF improvements ‒ Beam forming improvements ‒ MAC modifications (mostly to support above changes) ‒ Coexistence mechanisms for 20/40/80/160 MHz channels, 11ac and 11a/n devices • 802.11n “lessons learned”
  6. 6. © WildPackets, Inc.#wp_wirelesspackets 6 802.11ac vs. 802.11n • Gigabit speed wireless with approximately 3 times the performance for the same power • Better performance at any range with fewer dead spots • More reliable connections for media streaming with beam-forming • More Wi-Fi bandwidth on your mobile • Only utilizes the 5 GHz band - much less prone to interference • Backward compatible to 802.11 a/n
  7. 7. © WildPackets, Inc.#wp_wirelesspackets 7 Example 802.11ac Configurations
  8. 8. © WildPackets, Inc.#wp_wirelesspackets 8 802.11ac Adoption The Farpoint Group predicts that critical mass usage of 802.11ac BYOD client devices will occur in 2014 and 802.11ac access point infrastructure in 2015. February 2014 wireless-standard-adoption.asp?lan=US “Abandon all doubt that 802.11ac is replacing 802.11n – today. Except in very limited or unbelievably-cost-constrained situations, I can’t see further installations of .11n making any sense.” Craig Mathias, The Farpoint Group
  9. 9.© WildPackets, Inc. WLAN Analysis – Then and Now
  10. 10. © WildPackets, Inc.#wp_wirelesspackets 10 Then … • Locally connected devices • Commercially available USB devices • Multiple devices for channel aggregation
  11. 11. © WildPackets, Inc.#wp_wirelesspackets 11 Now - The Issues Are Simple • WLANs now exceed 1Gbps - analysis software must capture and process data at wired network speeds • Traditional WLAN analysis not up to the task ‒ Software • Freeware and commercial “wireless only” analysis software not architected for gigabit speeds ‒ Hardware • WLAN adapters typically used in portable analysis are not capable enough to analyze 802.11ac enterprise APs • Analysis can’t be done on the basis of management packets only • Sensors are expensive and don’t scale ‒ Reality: You’re probably not near the problem
  12. 12. © WildPackets, Inc.#wp_wirelesspackets 12 USB WLAN Adapters Not Up to the Task • This is how analysis is done today • Data > 433Mbps is simply ignored • Analysis is incomplete • And you don’t even know it! 1,300Mbps 433Mbps =/
  13. 13. © WildPackets, Inc.#wp_wirelesspackets 13 New Technologies, New Methods
  14. 14.© WildPackets, Inc. WildPackets’ OmniPeek for the fastest 802.11ac networks
  15. 15. © WildPackets, Inc.#wp_wirelesspackets 15 OmniPeek – the Only Solution for 802.11ac WLAN Analysis • Software designed to handle full duplex, 10G networks • Flexible data capture for any situation • Detailed analysis for every situation
  16. 16. © WildPackets, Inc.#wp_wirelesspackets 16 Software That Handles the Speed Key findings and conclusions: • Omnipliance TL with OmniAdapter 10G card has a capture-to-disk rate of 20.94Gbps with no packet loss • Capture-to-disk rate per 10G port of 10.47Gbps is the highest observed to date in testing of network analysis and recording appliances • Using an OmniAdapter 40G card, the capture-to-disk rate was measured at 25.33Gbps with no loss in storing the data • Provides analysis with full display of real-time statistics without impeding capture-to-disk performance
  17. 17. © WildPackets, Inc.#wp_wirelesspackets 17 Flexible Data Capture • Portable ‒ Convenient ‒ Real-time ‒ Limited hardware capability • Remote ‒ Anytime, anywhere ‒ Uses most capable capture devices ‒ Cisco, Aruba, Remote Ppcap, etc. • Distributed/Forensics ‒ 24x7 WLAN analysis ‒ WLAN recording for post-incident analysis Remote Software Probe for 24x7 Operation
  18. 18. © WildPackets, Inc.#wp_wirelesspackets 18 Specific 802.11ac Solutions •Cisco AE6000: 1-stream 802.11ac device compatible with OmniPeek •OmniPeek v7.8 and above with latest Ralink OmniPeek driver •Capturing 3 stream 802.11ac with Cisco Aironet 3700 and Aruba AP225
  19. 19. © WildPackets, Inc.#wp_wirelesspackets 19 Remote Adapters Available for Cisco, Aruba and Meru Access Points APs are “reconfigured” via the AP controller software Allow the full capabilities of the AP to be leveraged Allow an AP to be put into promiscuous mode and act like a direct-connected sniffing device AP3700 Cisco 2504 Corporate Network
  20. 20. © WildPackets, Inc.#wp_wirelesspackets 20 Remote Pcap Support Ruckus Aerohive Xirrus Others Remote Pcap support enables wireless captures directly from any AP that supports Remote Pcap
  21. 21. © WildPackets, Inc.#wp_wirelesspackets 21 Our Partners Partner AP(s) Controller? Connection Bands Cisco AP3700 Yes Remote (WRA) a//b/g/n/ac Aruba AP-225 Yes Remote (WRA) a/b/g/n/ac IAP-225 No Local (WRA) a/b/g/n Meru Yes Yes Remote (WRA) a/b/g/n Aerohive Yes Yes (Cloud) Remote (RemotePcap) a/b/g/n Ruckus Yes Yes Remote (RemotePcap) a/b/g/n
  22. 22.© WildPackets, Inc. Industry-Leading Analytics
  23. 23. © WildPackets, Inc.#wp_wirelesspackets 23 Channel Aggregation
  24. 24. © WildPackets, Inc.#wp_wirelesspackets 24 Multi-Channel Analysis
  25. 25. © WildPackets, Inc.#wp_wirelesspackets 25 Wireless Roaming Campus-wide deployments imply frequent roaming Roaming is the cause of many wireless issues Voice and video are especially sensitive Roaming analysis requires detailed and accurate measurements
  26. 26. © WildPackets, Inc.#wp_wirelesspackets 26 Expert Analysis Security policies monitored in real time Rapidly identify and resolve wireless network issues
  27. 27. © WildPackets, Inc.#wp_wirelesspackets 27 Voice over Wi-Fi (VoFi)
  28. 28. © WildPackets, Inc.#wp_wirelesspackets 28 Wired and Wireless Security protocols and policy Ad-hoc networks Wireless security attacks QoS configuration and use Signal strength Dropped packets and retries Access Point Router Air-link Private Network or the Internet Auth Server Ethernet Ethernet WLAN Controller Tracking wireless packets onto the wired network Wireless security attacks QoS configuration and use VPN/MPLS Dropped packets and retries
  29. 29. © WildPackets, Inc.#wp_wirelesspackets 29 WildPackets Advantage Remote data capture from commercial enterprise APs First to support data capture and analysis of 802.11ac traffic 802.11n 3-stream (450Mbps) portable analysis Comprehensive voice-over-wireless (VoFi) analysis Industry-leading UI that makes troubleshooting effortless Multi-channel and wireless roaming analysis Both wireless and wired network analysis in the same solution
  30. 30. © WildPackets, Inc.#wp_wirelesspackets 30 Why WildPackets Is A Leader • Protocol analysis since 1990 • WLAN analysis since 2001 • Many “firsts” • Used by ‒ 802.11 chipset vendors ‒ Device manufacturers/OEMs ‒ Technical Assistance Centers (TACs) ‒ Wi-Fi Alliance and Certified Test Labs (CTLs) • UI/Workflow • Expert analysis
  31. 31.© WildPackets, Inc. Q&A Show us your tweets! Use today’s webinar hashtag: #wp_wirelesspackets with any questions, comments, or feedback. Follow us @wildpackets Follow us on SlideShare! Check out today’s slides on SlideShare
  32. 32.© WildPackets, Inc. Thank You! WildPackets, Inc. 1340 Treat Boulevard, Suite 500 Walnut Creek, CA 94597 (925) 937-3200