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802.11ac - Wireless Gigabit Speeds Driving Changes in Wireless Analysis
The document provides an overview of the 802.11ac WLAN standard, detailing its improvements over previous standards like 802.11n, including higher speeds, wider channels, and enhancements like Multi-User MIMO. It discusses the implications for WLAN analysis and the importance of adapting analysis tools to match the evolving capabilities of wireless technology. Additionally, it presents a corporate overview of WildPackets, emphasizing their expertise in network monitoring and performance optimization.
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802.11ac - Wireless Gigabit Speeds Driving Changes in Wireless Analysis
- 1. www.wildpackets.com© WildPackets, Inc. Showus 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 jbotelho@wildpackets.com Follow me @jaybotelho 802.11ac Wireless Gigabit Speeds Driving Changes in Wireless Analysis
- 2. © WildPackets, Inc.#wp_wirelesspackets WereYou Aware… • How many ratified 802.11 standards are in place as of today (April 17, 2013)? a) 12 b) 19 c) 22 d) 25 e) 28 • How many new standards are currently in process? a) 3 b) 5 c) 8 d) 9 e) 10
- 3. © WildPackets, Inc.#wp_wirelesspackets 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
- 4. © WildPackets, Inc.#wp_wirelesspackets Agenda •802.11ac Basics • 802.11ac Use Cases – Consumer vs. Enterprise • 802.11ac vs. 802.11n • WLAN Analysis – Then and Now • WildPackets Corporate Overview • WildPackets Product Line Overview 4
- 5. © WildPackets, Inc.#wp_wirelesspackets WereYou Aware… • How many ratified 802.11 standards are in place as of today (March 14, 2012)? a) 12 b) 19 c) 22 d) 25 e) 28 • How many new standards are currently in process? a) 3 b) 5 c) 8 d) 9 e) 10
- 6. © WildPackets, Inc.#wp_wirelesspackets Ratified •IEEE 802.11-1997: The original WLAN standard • IEEE 802.11a: 54 Mbit/s, 5 GHz standard (1999) • IEEE 802.11b: Enhancements to 802.11 to support 5.5 and 11 Mbit/s (1999) • IEEE 802.11c: Bridge operation procedures; included in the IEEE 802.1D standard (2001) • IEEE 802.11d: International (country-to-country) roaming extensions (2001) • IEEE 802.11e: Enhancements: QoS, including packet bursting (2005) • IEEE 802.11g: 54 Mbit/s, 2.4 GHz standard (backwards compatible with b) (2003) • IEEE 802.11h: Spectrum Managed 802.11a (5 GHz) for European compatibility (2004) • IEEE 802.11i: Enhanced security (2004) • IEEE 802.11j: Extensions for Japan (2004) • IEEE 802.11-2007: A new release of the standard that includes amendments a, b, d, e, g, h, i & j. (July 2007) • IEEE 802.11k: Radio resource measurement enhancements (2008) • IEEE 802.11n: Higher throughput improvements using MIMO (multiple input, multiple output antennas) (September 2009) • IEEE 802.11p: WAVE—Wireless Access for the Vehicular Environment (such as ambulances and passenger cars) (July 2010) • IEEE 802.11r: Fast BSS transition (FT) (2008) • IEEE 802.11s: Mesh Networking, Extended Service Set (ESS) (July 2011) • IEEE 802.11u: Interworking with non-802 networks (for example, cellular) (February 2011) • IEEE 802.11v: Wireless network management (February 2011) • IEEE 802.11w: Protected Management Frames (September 2009) • IEEE 802.11y: 3650–3700 MHz Operation in the U.S. (2008) • IEEE 802.11z: Extensions to Direct Link Setup (DLS) (September 2010) • IEEE 802.11-2012: A new release of the standard that includes amendments k, n, p, r, s, u, v, w, y and z (March 2012) • IEEE 802.11aa: Robust streaming of Audio Video Transport Streams (June 2012) • IEEE 802.11ad: Very High Throughput 60 GHz (Dec 2012) • IEEE 802.11ae: QoS Management (Mar 2012) http://en.wikipedia.org/wiki/IEEE_802.11 6
- 7. © WildPackets, Inc.#wp_wirelesspackets InProcess • IEEE 802.11ac: Very High Throughput <6 GHz (Feb 2014) • IEEE 802.11af: TV Whitespace (June 2014) • IEEE 802.11ah: Sub 1 GHz (Mar 2016) • IEEE 802.11ai: Fast Initial Link Setup (Feb 2015) • IEEE 802.11mc: Maintenance of the standard (March 2015) • IEEE 802.11aj: China Millimeter Wave (October 2016) • IEEE 802.11aq: Pre-association Discovery (May 2015) • IEEE 802.11ak: General Link http://en.wikipedia.org/wiki/IEEE_802.11 7
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- 9. © WildPackets, Inc.#wp_wirelesspackets 802.11acHighlights • 802.11n “lessons learned” • 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 9
- 10. © WildPackets, Inc.#wp_wirelesspackets Example802.11ac Configurations http://en.wikipedia.org/wiki/IEEE_802.11ac
- 11. © WildPackets, Inc.#wp_wirelesspackets 802.11acStatus • Not scheduled for IEEE ratification until Feb 2014, but … http://reviews.cnet.com/best-wireless-networking-devices/
- 12. © WildPackets, Inc.#wp_wirelesspackets 802.11acStatus – And … 12 http://www.engadget.com/tag/802.11ac/
- 13. www.wildpackets.com© WildPackets, Inc. 802.11acUse Cases Consumer vs. Enterprise 13
- 14. © WildPackets, Inc.#wp_wirelesspackets 802.11ac– “The Multimedia Home” • Wi-Fi Direct • Video streaming/set- top boxes • Data syncing and backup • 3G and 4G offloading
- 15. © WildPackets, Inc.#wp_wirelesspackets WhatWill Drive Enterprise Adoption? • Ratification and certification • Cost and availability • Unique bandwidth needs • The “yet-to-be-identified killer video app” – telepresence?? • The true “wireless office”, should it become a reality – remember Bluetooth?? • BYOD – grassroots pressure from mobile device users
- 16. www.wildpackets.com© WildPackets, Inc. 802.11acvs. 802.11n 16
- 17. © WildPackets, Inc.#wp_wirelesspackets 802.11n:Higher Throughput Improvements Using MIMO • Description ‒ Significant enhancements in data rate and range ‒ Uses new technologies including MIMO, channel bonding, aggregation, short guard interval • Use cases and market penetration ‒ Becoming the de-facto standard for commercially available WLAN equipment – both consumer and enterprise ‒ High-density deployments; multimedia applications; forklift upgrades • Compatibility and analysis implications ‒ Backward compatible with a/b/g, but older technologies limit overall improvements ‒ Not all network analysis software and hardware is up to the task ‒ Make WLAN analysis upgrades part of the overall 802.11n upgrade 17 http://linksys- de.custhelp.com/app/answers/detail/a_id/21194/~ /intermittent-wireless-signal-with-802.11n-routers- and-access-points
- 18. © WildPackets, Inc.#wp_wirelesspackets 802.11ac:Very High Throughput <6 GHz • Description ‒ Significant improvement over 802.11n – higher throughput for less power ‒ Wi-Fi MIMO “multicast” • Use cases and market penetration ‒ Commercial penetration for multimedia over Wi-Fi ‒ WFA certification coming soon – based on draft standard ‒ Will become the standard for 802.11 networking infrastructure going forward • Compatibility and analysis implications ‒ Backward compatible with a/b/g/n, but older technologies limit overall improvements ‒ Only operates at 5GHz, significantly reducing compatibility issues ‒ New speeds require new methods for detailed analysis 18
- 19. © WildPackets, Inc.#wp_wirelesspackets 802.11acvs. 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 http://www.netgear.com/landing/80211ac/images/wp_netgear_802_11ac_wifi.pdf
- 20. www.wildpackets.com© WildPackets, Inc. WLANAnalysis – Then and Now 20
- 21. © WildPackets, Inc.#wp_wirelesspackets Then… • Locally connected devices • Commercially available USB devices • Multiple devices for channel aggregation 21
- 22. © WildPackets, Inc.#wp_wirelesspackets TheProblem with “Then” • I’m most probably NOT near the problem • I still need supported devices • I need supported devices that equal or exceed the most capable devices on my network – now 802.11ac • And, most importantly … • USB is simply NOT up to the task! 22
- 23. © WildPackets, Inc.#wp_wirelesspackets USB •USB 1.1 (Full Speed) ‒ September 1998 ‒ 12 Mbps ‒ If you still have equipment with v1.1, get something new! • USB 2.0 (High Speed) ‒ April 2000 ‒ 480 Mbps theoretical; 280 Mbps effective ‒ Extremely common for laptops in use • USB 3.0 (Super Speed) ‒ November 2008 ‒ 5 Gbps theoretical; 3.2 Gbps effective 23
- 24. © WildPackets, Inc.#wp_wirelesspackets NowLet’s Review 24
- 25. © WildPackets, Inc.#wp_wirelesspackets DoingSome 802.11ac Math • Assume 2-antenna APs and STAs at 80MHz = 867 Mbps • Assume effective throughput of 520 Mbps (60%) • Assume you can “hear” 3 different APs • If our analysis requires aggregating data from the 3 distinct APs together, the aggregated analysis throughput is • 1.56 Gbps • Using USB devices, v3.0 is required for both the WLAN adapters AND the laptop – not easy to find! 25
- 26. © WildPackets, Inc.#wp_wirelesspackets AndIt Will Get Faster … • Assume an 8-antenna AP, 4 2-antenna stations at 160 MHz using MU-MIMO (1.73 Gbps to each STA) • Assume effective throughput of 1.04 Gbps (60%) • If our analysis requires aggregating data from the 4 STAs together, the aggregated analysis throughput is • 4.16 Gbps • This exceeds the 3.2 Gbps effect rate for USB 3.0, the very best the market has to offer 26
- 27. © WildPackets, Inc.#wp_wirelesspackets So,What “Now”? • As wireless approaches wired speeds, it’s time to start relying on the wire • Distributed analysis using deployed assets – APs – is the only effective solution as wireless speeds grow • The choices: ‒ Remote PCap ‒ Custom Remote Adapters 27
- 28. © WildPackets, Inc.#wp_wirelesspackets RemotePcap • A WinPcap feature that allows interaction with a remote machine to capture packets • The remote device must be running the remote Pcap daemon (rpcapd) • Remote Capture Protocol (RPCAP) modes: ‒ Passive Mode (default): analyzer connects to the remote daemon, sends the appropriate commands, starts the capture ‒ Active Mode: remote daemon tries to establish a connection to the analyzer, the analyzer sends the appropriate commands to the daemon, starts the capture • Simply start a capture on the analyzer and point it to the available RPCAP interfaces 28
- 29. © WildPackets, Inc.#wp_wirelesspackets RemotePcap (cont.) 29
- 30. © WildPackets, Inc.#wp_wirelesspackets Supportfor RPCAP • Not easy to find – this isn’t a “marketed feature” for manufacturers • Devices we have worked with include: ‒ Aerohive: Model HiveAP 120 ‒ Ruckus: ZoneFlex 7363 (requires ZoneDirector Controller) • Others that we’re aware of: ‒ Cisco MDS 9216 • We will continue to compile a list 30
- 31. © WildPackets, Inc.#wp_wirelesspackets CustomRemote Adapters • Allow an AP that can be put into promiscuous mode to act like a direct-connected sniffing device • Allow the full capabilities of the AP to be leveraged • APs are “reconfigured” via the AP controller software • Depending on the manufacturer and the model, APs may or may not be able to continue sending traffic • Once configured, choosing the remote adapter from within OmniPeek allows wireless packets to be collected directly from the AP 31
- 32. © WildPackets, Inc.#wp_wirelesspackets CustomRemote Adapters 32
- 33. © WildPackets, Inc.#wp_wirelesspackets CustomRemote Adapters • Cisco • Aruba • Meru • Coming soon: Quantenna 33
- 34. © WildPackets, Inc.#wp_wirelesspackets OmniPeekand 802.11ac • Continued support for USB WLAN adapters ‒ OmniWiFi for 11n ‒ New adapters for 802.11ac • Continued support for Custom Remote Adapters ‒ Test new APs for 802.11ac ‒ New manufacturers • RPCAP support ‒ Built into upcoming release of OmniPeek ‒ Climbing the learning curve ‒ Test with APs as they’re indentified ‒ Compile a list of APs with support 34
- 35. www.wildpackets.com© WildPackets, Inc. Q&A Showus 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 www.slideshare.net/wildpackets
- 36. www.wildpackets.com© WildPackets, Inc. WildPacketsCorporate Overview Optimizing Network and Application Performance
- 37. © WildPackets, Inc.#wp_wirelesspackets CorporateBackground • 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”
- 38. © WildPackets, Inc.#wp_wirelesspackets WhyOur 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
- 39. © WildPackets, Inc.#wp_wirelesspackets HowWe 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
- 40. © WildPackets, Inc.#wp_wirelesspackets UnprecedentedNetwork 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 TimeLine and Omnipliance network recorders 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
- 41. © WildPackets, Inc.#wp_wirelesspackets AHistory 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
- 42. www.wildpackets.com© WildPackets, Inc. ProductLine Overview
- 43. © WildPackets, Inc.#wp_wirelesspackets OmniDistributed 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 / TimeLine Distributed Enterprise Network Forensics • 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
- 44. © WildPackets, Inc.#wp_wirelesspackets OmniDistributed Analysis Platform Software and Turnkey Solutions • Enterprise monitoring and reporting ‒ WatchPoint Server ‒ OmniFlow, NetFlow, and sFlow Collectors • Software probes and network recorders ‒ Omnipliance network recorders – Edge, Core ‒ TimeLine network recorders ‒ OmniAdapter analysis cards • Distributed analysis software ‒ OmniPeek – Enterprise, Professional, Basic, Connect ‒ OmniEngine – Enterprise, Desktop, OmniVirtual • Portable solutions ‒ OmniPeek network analyzer ‒ Omnipliance Portable
- 45. © WildPackets, Inc.#wp_wirelesspackets KeyNew Features in v7 • 40G network support • Analyze issues from end to end: Multi-Segment Analysis (MSA) • Collect data from non-technical end users: OmniPeek Remote Assistant (ORA) • Single, interactive dashboard for utilization, top talkers, top protocols, latency, Experts, flows, and wireless signal strength • New wireless specifications ‒ 802.11ac 802.11k ‒ 802.11r 802.11u ‒ 802.11v 802.11w
- 46. © WildPackets, Inc.#wp_wirelesspackets OmniPeekNetwork Analyzer • Distributed analysis manager – Connect to and configure distributed OmniEngines, Omnipliances, and TimeLines • 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
- 47. © WildPackets, Inc.#wp_wirelesspackets OmniplianceNetwork Recorders • Captures and analyzes all network traffic 24x7 – Runs WildPackets OmniEngine software probe – Generates vital statistics on network and application performance – Intuitive root-cause analysis of performance bottlenecks • Expert analysis speeds problem resolution – Fault analysis, statistical analysis, and independent notification • Multiple issue digital forensics – Real-time and post capture data mining for compliance and troubleshooting • Intelligent data transport – Network data analyzed locally – Detailed analysis passed to OmniPeek on demand – Summary statistics sent to WatchPoint for long term trending and reporting – Efficient use of network bandwidth • User-extensible platform – Plug-in architecture and SDK
- 48. © WildPackets, Inc.#wp_wirelesspackets TimeLineNetwork Recorder • Continuous network recording and comprehensive real-time statistical display — simultaneously ‒ 12Gbps sustained capture with zero packet loss ‒ Network statistics display in TimeLine visualization format • Rapid, intuitive forensics search and retrieval ‒ Historical network traffic analysis and quick data rewinding ‒ Several pre-defined forensics search templates making searches easy and fast • A natural extension to the WildPackets product line • Turnkey bundled solution ‒ Appliance + OmniEngine, OmniAdapter, OmniPeek Connect
- 49. © WildPackets, Inc.#wp_wirelesspackets WildPacketsNetwork Recorders Price/Performance Solutions for Every Application Portable Edge Core TimeLine Ruggedized Troubleshooting Small 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 Dual 2.13 GHz Quad-Core Intel Xeon L5630 "Westmere" Quad-Core Intel Xeon X3460 2.80Ghz Dual Intel Xeon Quad Core E5530 2.4GHz Dual Intel Xeon Quad Core X5560 2.8GHz 24GB RAM 4GB RAM 6GB RAM 18GB 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 SATA storage capacity 1TB SATA storage capacity 8/16TB SATA storage capacity 8/16/32/48TB SATA storage capacity 4.5Gbps CTD 1.1Gbps CTD 3Gbps CTD 12Gbps CTD
- 50. © WildPackets, Inc.#wp_wirelesspackets WatchPoint CentralizedMonitoring 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
- 51. © WildPackets, Inc.#wp_wirelesspackets ComprehensiveSupport 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
- 52. © WildPackets, Inc.#wp_wirelesspackets WildPacketsKey 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
- 53. © WildPackets, Inc.#wp_wirelesspackets 24x7Network Monitoring, Analysis, and Troubleshooting
- 54. www.wildpackets.com© WildPackets, Inc. ThankYou! WildPackets, Inc. 1340 Treat Boulevard, Suite 500 Walnut Creek, CA 94597 (925) 937-3200