The New Frontier of Enterprise Wireless April 2009

On the 2.4GHz band, only 3 Non Overlapping channels. Frequency Constrains

Radio Basics – Coverage <> Range Distance Client 54 Mbps Client 6 Mbps Client 1 Mbps Radio Transmission Still Continues Radio Coverage: This is the area a client can hear an Access Point and reply successfully – Typically 10 Metres radius from the AP at 54 Mbps Range: The RF energy does not stop simply because the client and AP can no longer interpret the data, typical Range may be 2,000 meters

Radio Basics – Why Coverage <> Range Multipath: When a client hears the same data from a single AP several times, this can corrupt the signal. Reflection: Flat metallic surfaces tend to reflect RF energy Refraction: Metal grids can distort the RF energy making it unusable Absorption: Fluids usually absorb RF energy as in a microwave.

Wi-Fi So Far…  Traffic contention  Unreliable connection

Wi-Fi So Far…  Traffic contention  Unreliable connection  Slow or wrong mobility  AP-to-AP interference  Coverage gaps hard to fix  APs individually configured  One AP serves all. QoS hard to be assured Only one channel per area

AP to AP Interference Up to 21dBm between 54 and 1 Mbps AP coverage can be more than double at low speed

The Trouble with Cells… is meant for a Single-Cell Environment Forces a Single-AP protocol to function in a Multi-AP Environment Results in trade-offs: a “tug-of-war” This architecture is impaired by the Standard. Trade-Offs Coveragevs.Capacity Capacityvs.Mobility Mobilityvs.Security

Wi-Fi Headaches High OpEx » Radio Planning is an Expensive and long task » Filling up network coverage gaps is a hard task often requiring AP repositioning » Wireless Network Tuning is a continuous task requiring well trained professionals n with its ability to take advantage of multipath increases the pain » Planning AP coverage is almost impossible because of unpredictable reflections » AP coverage changes as people move, because being made mostly of water, humans absorb and diffract radio waves

Wi-Fi Headaches Low spectrum usage » Cannot fully reuse channels In order to limit interferences Network Performances depend upon client devices! » AP selection made by client » The less performing client slows down the network Lack of real mobility » Roaming decision taken by client » Roaming Process is critical and not fully reliable as it must be in order to support VoWLAN applications Weak physical security » AP, even if lightweight, store network critical data: Keys, Credentials, Access Lists, etc. » AP can be replaced by fake ones in order to access network and grab credentials » Hence AP must be physically locked

How Extricom by ATI solves all those issues

A High-Performance Wireless IP Cloud – The Extricom Channel Blanket™ AP-Anywhere (no need to configure) Mobility Guaranteed Bandwidth The Channel Blanket™ Centralize Logic, Distribute the Radio Only A “single cell experience” gives: Steady Throughput Any-Density RP Positioning Consistent Client Behavior A “single cell experience” gives: Steady Throughput Any-Density RP Positioning Consistent Client Behavior Client Independent

Multi-Service WLAN Blankets The Channel Blanket™ Centralize Logic, Distribute the Radio Only Multi-Layer WLAN Distribute four radios, set to any combination of channel, band & mode Capacity Simplified QoS Dedicated Security Monitoring Rogue AP-Anywhere Intrinsic Mobility Guaranteed Bandwidth Traditional APs cannot use more than 1 channel in each band

Multi-Service WLAN Blankets The Channel Blanket™ Centralize Logic, Distribute the Radio Only Multi-Layer WLAN Distribute four radios, set to any combination of channel, band & mode Capacity Simplified QoS Dedicated Security Monitoring + TrueReuse™ Dynamic frequency reuse 3X Channel Bandwidth Up to 10X System Aggregate Bandwidth Rogue AP-Anywhere Intrinsic Mobility Guaranteed Bandwidth

Cell Planning – Hard Work

Roaming = Poor Quality Disconnect From AP on Channel 11 Request to join AP on Channel 6 Authenticate with central Radius Connect and start recovering data Disconnect From AP on Channel 6 Request to join AP on Channel 1 Authenticate with central Radius Connect and start recovering data Client Dependent!

Cell Planning – No Need With Extricom Even the most basic client gets seamless mobility Client interacts with a single AP: Same SSID, Same MAC (BSSID)

QoS – Best Effort – All Channels Congested Traditional Cell Planning

QoS – Guaranteed – All Channel Dedicated Client Independent

TrueReuse: Multiply Bandwidth with Seamless Mobility Client Independent

“Natural” Frequency Reuse - download Multiple use of the same channel, geographically separated » IEEE standard – CSMA/CA – listen before talk Distance between APs which will be “allowed” by the standard to transmit simultaneously on the same frequency » more then 100m, dependent on the environment. (office environment, open space, wall types, etc. Re-use distance Re-use distance Re-use distance

Without TrueReuse WLAN is a shared media, all clients will share the bandwidth available on the channel. On every channel, only one RP or client will transmit at a time. This is protected by the Collision Avoidance mechanism of the standard.

Client Independent TrueReuse Channel blanket dynamically “subdivided” into multiple collision domains, to create simultaneous multiple links without co-channel interference Switch uses real-time knowledge of link differentials between all clients and all RPs to determine the re-use opportunity

TrueReuse – How it works? The link difference is what matters: » If C1/I1 > Reuse Threshold, then permit transmission to Client 1 » If C2/I2 > Reuse Threshold, then permit transmission to Client 2 The switch uses received signal strength measurements to calculate the above ratio C1C1 I1I1 I2I2 C2C2

What about physical security Extricom Radio Points (EXRP) are NOT AP » Are simple radio interfaces » Do not contain any sensible information at all » Do not have any flash memory to store any information » Useless without the switch Extricom Switches (EXSW) can be secured into locked cabinets or wiring closets RP-Switch protocol is not Ethernet » It is real time with very tight timing constraints (some ns). Almost impossible to spoof by a PC » Even tapping into RP-Switch connection will show only what goes on air

IEEE N Benefits without Pains

Full.11n performances  Full-performance n (40MHz) is not possible. There is only 1 channel available  Mixing.11g traffic strongly affects.11n performances ? ? ? ? ? ? 11  Full-performance.11n and.11g .11n and.11g traffic separated on different channels Channel Blanket Cellular Approach n g

Captive Portal Switch controls client’s access to the internet After client connects to the WLAN, when opening it’s browser he will receive a login WEB page located on the switch Clients shall enter their user-name/password, and the switch shall authenticate the user with the Radius server (using Radius client protocol) User can customize default page by modifying text, images and colors (no html knowledge needed), or upload own html page

Extricom Products WLAN SwitchesRadio Points Management & Planning Accessories

Technology Background: Multi Series 1000 Appliance Platform High-performance Hardware Platform Software-configurable Gigabit Ethernet Uplink ports Downlink ports: up to 16 GbE with IEEE 802.3af PoE (software-enabled)  Products using this platform:  EXSW-1600  EXSW-800G

Extricom WLAN Switches EXSW-1600 / EXSW-800G GbE WLAN Switch » Support up to 16 or 8 UltraThin RPs (a/b/g/n) » Up to 4 simultaneous channel blankets » Hardware based i security » Built-in PoE EXSW-2400 / EXSW-1200 FE WLAN Switch » Support up to 24 or 12 UltraThin RPs (a/b/g) » Up to 4 simultaneous channel blankets » Hardware based i security » Built-in PoE EXSW800 / EXSW400 FE Small WLAN Switch » Support up to 8 or 4 UltraThin RPs (a/b/g) » Up to 2 simultaneous channel blankets » Hardware based i security » Built-in PoE

Extricom UltraThin™ Radio Points » UltraThin - No software or processing needed in the RP » Multiple n/a/b/g radios » 802.3af Power over Ethernet (PoE) » Anti-breach security and built-in Rogue AP detection EXRP-20 / EXRP-40 Dual or Quad-Radio, a/b/g, Integrated Antennas EXRP-20E / EXRP-40E Dual or Quad-Radio, a/b/g, External Antennas EXRP-40En Quad-Radio, n/a/b/g, 3x3 MIMO, External Antennas EXRP-30n Tri-Radio, n/a/b/g, 3x3 MIMO, Integrated Antennas

Accessories EXRE-10 & EXRE-20 PoE Range Extender » Double the range of PoE to 200m » In-line and self-powered » Drains 1.5W only Allied Telesis Fiber Extenders » Up to 700m of cable between switch and RP » Fully transparent to Switch and RP » 2 x AT-MC1000 » Multimode fibre link » 1 x AT-6101G PoE Injector 100m

ATI Labeling Equipment Label Carton Box Label -50

Allied Telesis Success Story Kawashima Selkon Textiles Co. Ltd

Extricom Management Options Internal Management » Web GUI » Configuration » Status » Security NMS (EXNM-2000) » Fault Management » Performance » Configuration » Bulk operations on multiple Switches

EXNM Main Benefits Single solution to manage large-scale, multi-device networks Accelerated system rollouts and easy network updates Full-featured fault management including notification capabilities Real-time network health monitoring Scheduled bulk operations on multiple switches Integration with other major NMS solutions Secure, auditable management of users and user groups … all this, in an intuitive GUI

EXNM Features Scalability » Auto-discovery of up to 2000 switches associated to thousands of Radio Points (RPs) » Group configuration of all discovered switches as if they were a single switch GUI » Intuitive, Graphic Based » Monitoring of the whole network from a single screen Northbound interface » for integration with existing NMS Geographic Map View

EXNM Features – cont. System Configuration Configuration tasks on individual and group of switches (e.g. add same ESSID, reboot, upgrade firmware…) Drill down to specific devices from High level Geographic map views Security Management Secured client/server sessions Optional interface to LDAP servers for user authentication and management Privileges based on profiles Audit trails Security Configuration

EXNM Features - cont. Fault Management SNMP traps Real-time status Visualization of Extricom Network Performance Configurable statistics polling Graphical reporting on statistical performance of individual devices or of the whole system Interoperability Configurable Northbound interface for 3 rd- party systems (e.g. Tivoli™, etc.)

Ordering Information Item NumberDescription EXNM-2000/2E  Max. of 2 Managed Switches  2 Users only EXNM-2000/5Maximum of 5 Managed Switches; 4 users EXNM-2000/10Maximum of 10 Managed Switches EXNM-2000/25Maximum of 25 Managed Switches EXNM-2000/50Maximum of 50 Managed Switches EXNM-2000/100Maximum of 100 Managed Switches EXNM-2000/UMaximum of Up to 2000 Managed Switches

High Availability Higher resilience than “N+1” system integrity » AP redundancy » An option to create redundancy only in high availability areas » Uplink Diversity » Failover transparency » Eliminating Single Point of Failure (SPOF) Competitive pricing over “1+1” component level » No need to duplicate AP’s » 2nd switch licensed as cascaded

DHCP Server Redundant EXSCMain EXSC L2/L3 GRE tunneling WLAN Switch is connected to a specific subnet Using EXSC, a client can seamlessly connect to a WLAN Switch located in an other subnet EXSC-1000: Subnet Roaming Controller Internet L2L2

About Extricom ex.tri.com — from the English word extricate [Latin root extricare] 1. To free or release from entanglement or impediments. 2. To untangle and/or simplify communications.

Extricom Mission Statement Provide high-performance wireless LAN (WLAN) infrastructure for the Enterprise Market, enabling the converged triple play of data, streaming video, and voice over WLAN (VoWLAN)

About Extricom Vitals » Principal offices in New York, Tel-Aviv, London, Tokyo » Founded 2002 » Patented: 18 filed, 9 granted » CTO is one of original members of IEEE group The Proposition » Superior performance and dramatic simplicity » Multi-use infrastructure – voice, data, location, video, guest services

Product Recognition TechWorld Wireless Product of the Year – Finalist (2008) Communications Solutions Wireless Product of the Year (2007) CMP CRNTech Top 10 Products of the Year (2007) VARBusiness Tech Innovator of the Year (2007) » The most innovative products in the industry sold through the IT Channel – Wireless Category Communications Solutions Wireless Product of the Year (2006) TechWorld Wireless Product of the Year (2006) » Awarded for Enterprise functionality, performance, and value Internet Telephony Wireless Product of the Year (2006) » Awarded for innovation for VoIP over wireless

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