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Wireless Network Analysis 101 VoFi (Voice over Wi-Fi)

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The proliferation of wireless handheld devices, especially tablets and smart phones, puts increased strain on today's wireless networks. As the technology continues to evolve rapidly, network engineers are in a race to keep up—both with system interoperability concerns, and throughput, reliability, and security issues. Now more than ever, you need a solid understanding of requirements and the solutions available for wireless network monitoring and analysis. Special attention is required when managing networks with voice and video over Wi-Fi. This webinar will not only address the tools needed for securing your network and optimizing performance, but will discuss how you can identify and monitor the maximum threshold for voice and video over Wi-Fi capacity.

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Wireless Network Analysis 101 VoFi (Voice over Wi-Fi)

  1. 1. www.wildpackets.com© WildPackets, Inc. Show us your tweets! Use today’s webinar hashtag: #wp_wireless with any questions, comments, or feedback. Follow us @wildpackets Jay Botelho Director of Product Management WildPackets jbotelho@wildpackets.com Follow me @jaybotelho Wireless Network Analysis 101 VoFi (Voice over Wi-Fi)
  2. 2. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Administration • All callers are on mute ‒ If you have problems, please let us know via the Chat window • There will be Q&A ‒ Feel free to type a question at any time • Slides and recording will be available ‒ Notification within 48 hours via a follow-up email 2
  3. 3. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Agenda • Why VoFi? Why now? • Collecting data for VoFi analysis • Assessing the WLAN landscape for VoFi • Using VoIP metrics with VoFi • VoIP/VoFi – one more call and you’re over the cliff • Demo – anatomy of a VoFi call • Key wireless factors in VoFi quality • Corporate overview • Product line overview 3
  4. 4. www.wildpackets.com© WildPackets, Inc. Why VoFi? Why Now? 4
  5. 5. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Why VoFi? Quality Convenience Cost
  6. 6. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Why Now? • Smart phones support 802.11 - period • VoFi systems have already found wide acceptance in some areas: manufacturing, medical, retail • The Wi-Fi alliance supports 2 certification programs: ‒ Voice-Enterprise: 44 certified products ‒ Voice Personal: 69 certified products “802.11ac is being pushed into smart phones by key carriers’ device requirements that are in sync with 802.11ac hotspot plans for more robust Wi-Fi offloading.” ABI Research
  7. 7. www.wildpackets.com© WildPackets, Inc. Collecting Data for VoFi Analysis 7
  8. 8. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Flexible Data Collection - Portable • Network analysis software (OmniPeek) with supported NIC ‒ 802.11a/b/g/n USB adapter ‒ VoIP, VoFi, full Expert Analysis ‒ Simultaneous Wired and Wireless Capture • Multi-channel aggregation ‒ 802.11a/b/g/n USB adapters ‒ USB hub ‒ Powered USB hub for captures on 3 or more channels
  9. 9. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi 9
  10. 10. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Remote Captures with OmniEngine Remote Software Probe for 24x7 Operation Using USB Adapters Using APs RemotePcap Custom Remote Adapters
  11. 11. www.wildpackets.com© WildPackets, Inc. Assessing the Wireless Landscape 11
  12. 12. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi It’s All One Network 12
  13. 13. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi And It’s Wireless and Wired 13
  14. 14. www.wildpackets.com© WildPackets, Inc. Using VoIP Metrics with VoFi 14
  15. 15. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Key RTP (VoIP/VoFi) Issues CAMP IT Pinpointing the Problem 15 Jitter Latency Packet Loss
  16. 16. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Assessing the Monster's Impact • While traditional network applications are very tolerant of jitter, latency, and even some degree of packet loss, VoIP/Video/VoFi are very sensitive to these troubles • Levels of jitter, latency, and packet loss that would be easily tolerated on a data network can be devastating on a converged VoIP/Video network • Pre- and post-deployment network assessments are critical ‒ You must understand your network’s ability to accommodate VoIP • Current latency, jitter, and packet loss • QoS capabilities • Current bandwidth utilization (is there any room for VoIP) ‒ You must maintain a constant vigil after deployment to watch for imminent troubles
  17. 17. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Latency Queue Latency & Decision Latency Network Propagation Delay Encoding / Decoding Compression / Decompression Jitter Buffer Latency 0 ms 100 ms 200 ms 300 ms 400 ms 500 ms 600 ms 700 ms 800 ms The ITU recommends a maximum one- way delay of 150 ms for VoIP
  18. 18. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Latency's Effects • Talkover ‒ Occurs when excessive latency delays audio – Conversation cadence is not natural or comfortable – Callers feel as if they must “push to talk” or say “over” to control the conversation • Echo ‒ The speaker’s voice feeds back into the listener’s microphone ‒ The speaker then hears his own voice returning from the listener’s end, but delayed due to latency ‒ Most callers find it difficult to maintain normal speech when echo delay is prolonged ‒ Some VoIP systems attempt to cancel echo, but are not always successful High latency may also cause additional troubles such as loss of synchronization between audio and video for multimedia sessions.
  19. 19. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Jitter • Jitter is the variance in packet delivery intervals to the listener • Jitter buffer adds additional delay to voice reaching the ear piece in case other packets need to catch up • Packets delayed too long in the network are not allowed to enter the jitter buffer Packets delayed more than the buffer delay (100 ms as an example) are dropped . . .. .. . . ........ ...... Packets are buffered and delayed at the Receiver The “jitter” buffer releases a G.711 packet every 20 ms A G.711 packet sent every 20 ms Packet jitter and drops 31 2 4
  20. 20. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Jitter's Effects • Jitter causes weird “sound effects” that vary with jitter severity and environmental factors • Examples include: ‒ Static ‒ Stuttering or uneven audio – abnormal speech rhythm ‒ For multimedia systems, video may be “jerky” or irregular • If jitter levels are high, packet loss can result ‒ In some cases, severe jitter may sound similar to packet loss, even if no packets are actually dropped
  21. 21. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Packet Loss and Effects • Most commonly caused by: ‒ Packet dropped due to physical layer corruption ‒ Congestion without adequate QoS provisions ‒ Jitter buffer discards due to excessive latency • Causes missing sounds, syllables, words, or phrases ‒ DSP algorithms may compensate for up to 30 ms of missing data ‒ More than 30 ms of missing audio (e.g. 2 RTP packets for G.711) is noticeable by listeners • Losing only a few packets can still be very noticeable ‒ Loss rates ≥ 2% will have a strong impact on quality ‒ Losses of 5 – 10% make calls all but intolerable ‒ Bursty periods of packet loss are worse than more dispersed loss
  22. 22. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Quality Scoring for VoIP • Mean Opinion Score (MOS) – several flavors ‒ Algorithmic simulation of subjective audio assessment ‒ Most commonly used varieties are MOS-LQ (listening quality) and MOS-CQ (conversational quality) ‒ Possible range of 1 (poor) to 5 (excellent) ‒ Maximum possible MOS = 4.4 with G.711 ‒ Typical range in most networks is 3.5 – 4.2 • R-Factor – several flavors ‒ Based on latency, jitter, packet loss, bit rate, and signal-to-noise ratio, codec effects (for low bit-rate codecs) • The ITU algorithms consider about 20 quality inputs ‒ Possible range of 0 (poor) to 100 (excellent) ‒ Provides LQ, CQ, and other score variants
  23. 23. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Crunching the Voice Score OmniPeek does the hard part… … so you can see the bottom line Source: ITU Recommendation G.108 – E-Model Guidelines
  24. 24. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi A Picture is Worth a 1000 Words • A graph of latency, jitter, or packet loss can speak volumes about network health, either for proactive or reactive troubleshooting • Overlaying graphs with network utilization or total throughput can reveal even more about the causes of VoIP troubles 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 8:45 9:15 9:45 10:15 10:45 11:15 11:45 12:15 12:45 13:15 13:45 14:15 14:45 15:15 15:45 16:15 16:45 17:15 MeanOpinionScore Time MOS
  25. 25. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Video vs. VoIP • Video is more difficult to manage than voice ‒ more “bursty” ‒ bandwidth intensive ‒ more sensitive to latency, jitter, and packet loss ‒ Includes several different applications with distinct demands • Video packets vary greatly in size • Tremendously compressed amount of visual information (99% compression ratio typical) • One HD video stream can consume up to 20Mbps of bandwidth • Video apps require millisecond-level network service recovery
  26. 26. www.wildpackets.com© WildPackets, Inc. One More Call and You're over the Cliff
  27. 27. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi The Impact of "Just One More Call" • Although a network link may be able to support a number of concurrent calls, one additional call is often enough to cause quality problems… x1113 x2111 x1112 x1111 1st Call 2nd Call 3rd Call x2112 x2113 Example: The WAN can support 2 simultaneous calls. What happens when a third call is attempted??? Call #3 Causes Poor Quality for ALL Calls
  28. 28. www.wildpackets.com© WildPackets, Inc. Demo: Anatomy of a VoFi Call
  29. 29. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Packet-by-Packet VoFi Call Wired VoIP Call
  30. 30. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Just the Stats, Mam
  31. 31. www.wildpackets.com© WildPackets, Inc. Key WLAN Factors for VoFi
  32. 32. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Additional Factors to Consider • Interference • CRCs vs. retransmissions • QoS (WMM) • Roaming • AP load 32
  33. 33. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Quantitative Interference Impacts on VoFi Source: Farpoint Group
  34. 34. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Quantitative Interference Impacts on VidFi Source: Farpoint Group
  35. 35. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi CRCs vs. Retransmissions 35
  36. 36. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Ready for QoS/WMM? • QoS provisions are based on the “weakest link” concept ‒ If any device in a data path does not support QoS, then media streams will not be afforded the preference they require for good performance • Pre-deployment assessment must ensure that ALL devices can recognize and respond to QoS parameters in packet headers ‒ Switches, routers, firewalls, proxies, and any other devices that touch RTP packets must be “VoIP-friendly”
  37. 37. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Client Roaming • Occurs when a handset moves out of range of one AP and into another – typically changes channel • Client roaming = Fast Basic Service Set (BSS) Transition • Legacy systems deal poorly with roaming – they’re not fast enough • Standards help: ‒ 802.11i with Opportunistic Key Caching (OKC) ‒ 802.11r-2008 – Fast BSS Transition ‒ 802.11k-2008 – Radio Resource Measurement of WLANs
  38. 38. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Roaming in Action • Multichannel Analysis • Roaming Analysis ‒ Detailed and accurate measurements from many perspectives • End-user and device manufacturer ‒ Summary data for roaming from each AP or each client
  39. 39. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi AP Load 39
  40. 40. www.wildpackets.com© WildPackets, Inc. Q&A Show us your tweets! Use today’s webinar hashtag: #wp_networkforensics with any questions, comments, or feedback. Follow us @wildpackets Follow us on SlideShare! Check out today’s slides on SlideShare www.slideshare.net/wildpackets
  41. 41. www.wildpackets.com© WildPackets, Inc. WildPackets Corporate Overview Optimizing Network and Application Performance
  42. 42. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Corporate Background • Experts in network monitoring, analysis, and troubleshooting ‒ Founded: 1990 / Headquarters: Walnut Creek, CA ‒ Offices throughout the US, EMEA, and APAC • Customers spanning leading edge organizations ‒ Mid-market and enterprise lines of business ‒ Financial, manufacturing, ISPs, major federal agencies, state and local governments, universities ‒ Over 7,000 customers / 60+ countries / 80% of Fortune 1,000 • Award-winning solutions that improve network performance ‒ Internet Telephony, Network Magazine, Network Computing awards ‒ United States Patent 5,787,253 issued July 28, 1998 • “Apparatus and Method of Analyzing Internet Activity”
  43. 43. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Why Our Customers Need Us • VoIP, video, cloud, virtualization, and key business applications are saturating critical network services • Evolving network technologies create discontinuities ‒ 1 Gig  10 Gig  40 Gig  100 Gig networks ‒ Wireless, BYOD initiatives • Users and business can not tolerate network problems for mission critical services Increasing demand for better real-time network visibility, network analytics, network forensics, and DPI
  44. 44. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi How We Create Value We provide innovative, industry-leading, real-time network performance management solutions ‒ Easy-to-use, easy-to-learn user interface ‒ Uniquely extensible solutions ‒ Wireless network leadership ‒ Detailed analytics related to network applications ‒ Fastest network traffic capture appliance in its class ‒ Technical superiority at competitive price point WildPackets has continually advanced its solution to meet the needs of its customers
  45. 45. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Unprecedented Network Visibility ROOT-CAUSE ANALYSIS OmniPeek network analyzer performs deep packet inspection and can reconstruct all network activity, including e-mail and IM, as well as analyze VoIP and video traffic quality. PINPOINT NETWORK ISSUES ANYWHERE Omnipliance Portable can rapidly identify and troubleshoot issues before they become major problems—wired or wireless—down the hall or across the globe. UNDERSTAND END-USER PERFORMANCE Omnipliance network analysis and recorder appliances monitor and analyze performance across critical network segments, virtual environments, and remote sites. NETWORK HEALTH WatchPoint can manage and report on key device performance and availability across the entire network, from anywhere on the network. GLOBAL DISTRIBUTED PORTABLE DPI
  46. 46. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi A History of Innovation 2003 Distributed real-time troubleshooting 2001 • First 802.11 wireless analyzer • First network analyzer with automated expert analysis 2005 Combined distributed network and VoIP network analysis 2008 Enterprise-wide Monitoring and Reporting 2009 Innovative dashboard with drill-down for VoIP and video 2012 • Capture, record, and analyze from 40G network segments • First wireless network analyzer to support 801.11ac, k, r, u, v, w 2011 • Total visibility with zero packet loss • First wireless network analyzer to support capture and analysis of 802.11n 3-stream wireless 2010 First to achieve 11 Gbps sustained capture-to-disk 2013 Industry leading network analysis and recorder appliances
  47. 47. www.wildpackets.com© WildPackets, Inc. Product Line Overview
  48. 48. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Omni Distributed Analysis Platform OmniPeek Enterprise Packet Capture, Decode and Analysis • Ethernet,1/10 Gigabit, 802.11, and voice and video over IP • Portable capture and OmniEngine console • Aggregate analysis data across multiple capture points Omnipliance Network Analysis and Recorder Appliances • High-performance packet capture and real-time analysis • Stream-to-disk for forensics analysis • Integrated OmniAdapter network analysis cards up to 40G WatchPoint Centralized Enterprise Network Monitoring Appliance • Aggregation and graphical display of network data • WildPackets OmniEngines • NetFlow and sFlow
  49. 49. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Omni Distributed Analysis Platform Software and Turnkey Solutions • Enterprise monitoring and reporting ‒ WatchPoint Server ‒ OmniFlow, NetFlow, and sFlow Collectors • Network Analysis and Recorder Appliances ‒ Omnipliance CX, MX, TL ‒ Optional OmniStorage ‒ OmniAdapter analysis cards • Distributed analysis software ‒ OmniPeek – Enterprise, Professional, Basic, Connect ‒ OmniPeek Remote Assistant ‒ OmniEngine Enterprise • Portable solutions ‒ OmniPeek network analyzer ‒ Omnipliance Portable
  50. 50. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi OmniPeek Network Analyzer • Distributed analysis manager – Connect to and configure distributed OmniEngines and Omnipliances, • Comprehensive dashboards present network traffic in real-time – Vital statistics and graphs display trends on network and application performance – Visual peer-map shows conversations and protocols – Intuitive drill-down for root-cause analysis of performance bottlenecks • Visual Expert diagnosis speeds problem resolution – Packet and payload visualizers provide business-centric views • Automated analytics and problem detection 24/7 – Easily create filters, triggers, scripting, advanced alarms, and alerts
  51. 51. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi OmniPeek Remote Assistant Distributed, End-user Packet Capture Made Simple • Simple to deploy, simple to use ‒ Remote push, download from server, or even email ‒ Simple user interface - eliminates confusion for end user ‒ Full fidelity capture - see exactly what the PC sees ‒ Wired or wireless • Encrypted file ‒ Only the analyst can open it ‒ Different encryption keys for different locations or customers • Detailed client-side/end-user experience analysis • Perfect for Tech Support or IT Desktop support Trouble call from remote site - network response is slow. User downloads and installs OmniPeek Remote. Encrypted capture data sent back for analysis. Network analyst uses OmniPeek Enterprise to quickly troubleshoot problem without leaving the office.
  52. 52. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi OmniWiFi USB WLAN Capture Adapter • A single device for all WLAN packet capture needs • Driver included with Omni v7.9 CDs • Tested and supported with OmniPeek and OmniEngine • Product features: • USB device with extension cable • Dual band operation – 2.4GHz and 5GHz • Supports all standard international 802.11 channels (a/b/g/n) • Supports 802.11n - 3 transmit/receive streams (450Mbps) • Supports 802.11n 20MHz and 40MHz channel operation • Supports multi-channel aggregation and roaming • Technical Details: ‒ Size (LWH): 6 inches, 1.5 inches, 5.5 inches ‒ Weight: 5.6 ounces • Available via Amazon - $99/each NOTE: • Capture ONLY – no network services • Does not capture 802.11ac
  53. 53. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi New Network Analysis and Recorder Appliances Powerful Precise Affordable The new family of WildPackets Network Analysis and Recorder appliances gives IT organizations powerful and precise analysis of high-speed networks in an affordable solution with half the hardware footprint of rival offerings.
  54. 54. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Powerful ‒ Fastest network recorder in its class! Captures traffic up to 20Gbps of real- world traffic (all size packet distribution) ‒ Scales up to 128 TB of storage ‒ Provides simultaneous real-time analysis and a comprehensive Forensic Search that rapidly searches through terabytes of captured traffic for the details relevant to an investigation Precise ‒ Captures complete network traffic, so you can analyze everything, not just samples or high-level statistics ‒ Doesn’t drop packets or sacrifice accuracy for speed ‒ Supports rich, detailed analysis, including VoIP and video-over-IP traffic Affordable ‒ Delivers outstanding price/performance (lower price; half the rack space) ‒ Allows mix of 1G/10G/40G interfaces without buying extra appliances ‒ Solutions start at $16,995 Your network is bigger and faster. Now your analysis solution is, too.
  55. 55. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Omnipliance TL Industry Leading Network Analysis and Recorder Appliance • Sets a new standard in capture-to-disk speeds ‒ 20Gbps sustained capture to disk rate with zero packet drop • Best price/performance Network Analysis Appliance in the market ‒ 20Gbps with only one Omnipliance TL + OmniStorage ‒ Consuming less rack space, less cooling, less electrical power • Most flexible network interface offering ‒ 1G/10G/40G interfaces supported in a single unit eliminates additional unit requirement • Most accurate real-time analytics ‒ Packet-based processing and analysis vs. inaccurate sample- based calculation
  56. 56. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi WildPackets Network Analysis Recorder Appliances Price/Performance Solutions for Every Application Portable Omnipliance CX Omnipliance MX Omnipliance TL Ruggedized Troubleshooting Less Demanding Networks Remote Offices Datacenter Workhorse Easily Expandable Enterprise, Highly- Utilized Networks Aluminum chassis / 17” LCD 1U rack mountable chassis 3U rack mountable chassis 3U rack mountable chassis 24GB RAM 16GB RAM 32GB RAM 64GB RAM 2 PCI-E Slots 2 PCI-E Slots 4 PCI-E Slots 4 PCI-E Slots 2 Built-in Ethernet Ports 2 Built-in Ethernet Ports 2 Built-in Ethernet Ports 2 Built-in Ethernet Ports 6TB Storage 4/8/16TB Storage 16/32TB Storage 32/48/64TB Storage Optional OmniStorage: 32/48/64TB Up to 128TB total Storage OmniAdapter 1G and 10G OmniAdapter 1G/10G MX OmniAdapter 1G/10G MX OmniAdapter 1G/10G/40G 6.5Gbps CTD 3.8Gbps CTD 8.8Gbps CTD 20Gbps CTD with OmniStorage
  57. 57. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi WatchPoint Centralized Monitoring for Distributed Enterprise Networks • High-level, aggregated view of all network segments – Monitor per campus, per region, per country • Wide range of network data – NetFlow, sFlow, OmniFlow • Web-based, customizable network dashboards • Flexible detailed reports • Direct link to detailed, packet-based analysis
  58. 58. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi Comprehensive Support and Services Standard Support  Maintenance and upgrades  Telephone and email contacts  Knowledgebase  MyPeek Portal Premier Support  24 x 7 x 365  Dedicated escalation manager  2 customer contacts per site  Plug-in reconfiguration assistance WildPackets Training Academy  Public, web-based, and on-site classes  Complete curriculum: technology and product focused  Practical applications and labs covering network analysis, wireless, VoIP monitoring and advanced troubleshooting Consulting and Custom Development Services  Deployment, configuration, and assessment engagement  Systems integration and testing  Application integration, driver, decode, interface development
  59. 59. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi WildPackets Key Differentiators • Visual Expert intelligence with intuitive drill-down – Let computer do the hard work, and return results, real-time – Packet /payload visualization is faster than packet-per-packet diagnostics – Experts and analytics can be memorized and automated • Automated capture analytics – Filters, triggers, scripting, and advanced alarming system combine to provide automated network problem detection 24x7 • Multiple issue network forensics – Can be tracked by one or more people simultaneously – Real-time or post capture • User-extensible platform – Plug-in architecture and SDK • Aggregated network views and reporting – NetFlow, sFlow, and OmniFlow
  60. 60. © WildPackets, Inc.#wp_wireless Wireless Network Analysis 101 - VoFi 24x7 Network Monitoring, Analysis, and Troubleshooting
  61. 61. www.wildpackets.com© WildPackets, Inc. Thank You! WildPackets, Inc. 1340 Treat Boulevard, Suite 500 Walnut Creek, CA 94597 (925) 937-3200

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