Gigabit WLANs Need Gigabit WLAN Analysis

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www.wildpackets.c om © 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 [email protected] Follow me @jaybotelho Gigabit WLANs Need Gigabit WLAN Analysis

description

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.

Transcript of Gigabit WLANs Need Gigabit WLAN Analysis

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Show us your tweets!Use today’s webinar hashtag:

#wp_wirelesspacketswith any questions, comments, or feedback.

Follow us @wildpackets

Jay BotelhoDirector of Product [email protected] me @jaybotelho

Gigabit WLANs Need Gigabit WLAN Analysis

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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

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Agenda

• 802.11ac – The State of Affairs

• WLAN Analysis – Then and Now

• OmniPeek for the fastest 802.11ac Networks

• Demos

• Industry-Leading Analytics

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802.11acThe State of Affairs

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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”

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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

http://www.netgear.com/landing/80211ac/images/wp_netgear_802_11ac_wifi.pdf

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Example 802.11ac Configurations

http://en.wikipedia.org/wiki/IEEE_802.11ac

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802.11ac Adoption

The Farpoint Grouppredicts that criticalmass usage of802.11ac BYODclient devices willoccur in 2014 and802.11ac access pointinfrastructure in 2015.

February 2014http://v1.aberdeen.com/launch/report/market_alert/8853-MA-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

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WLAN Analysis – Then and Now

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Then …

• Locally connected devices

• Commercially available USB devices

• Multiple devices for channel aggregation

10

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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

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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

=/

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New Technologies, New Methods

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WildPackets’ OmniPeek for the fastest 802.11ac networks

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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

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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

http://miercom.com/pdf/reports/20140109.pdf

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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 SoftwareProbe for 24x7 Operation

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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

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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 2504Corporate Network

Corporate Network

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Remote Pcap Support

Ruckus

Aerohive

Xirrus

Others

Remote Pcap support enables wireless captures directly from any AP that supports Remote Pcap

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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

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Industry-Leading Analytics

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Channel Aggregation

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Multi-Channel Analysis

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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

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Expert AnalysisSecurity policies monitored in real time Rapidly identify and resolve

wireless network issues

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Voice over Wi-Fi (VoFi)

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Wired and Wireless

Security protocols and policy

Ad-hoc networks

Wireless security attacks

QoS configuration and use

Signal strength

Dropped packets

and retries

AccessPoint Router

Air-link

PrivateNetworkor the

Internet

AuthServer

Ethernet Ethernet

WLANController

Tracking wireless packets onto the wired network

Wireless security attacks

QoS configuration and useVPN/MPLS

Dropped packets

and retries

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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

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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

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Q&A

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#wp_wirelesspacketswith any questions, comments, or feedback.

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Thank You!

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