Tropos Technology Overview 081704

Tropos Technology OverviewTropos Technology OverviewAugust 2004

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Wi-Fi

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AgendaAgenda

• Tropos System Technology• Wi-Fi Cell Layered Architecture• Predictive Wireless Routing

Protocol™• Metro-Scale Roaming• Multi-Layer Security• Network Management• Competitive Technologies• Summary

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Tropos System TechnologyTropos System Technology

Security

Multi-layer

Metro-Scale Roaming

Wireless

PredictiveRouting Protocol

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Wi-Fi Cell Layered ArchitectureWi-Fi Cell Layered Architecture

Tropos Sphere NOS• Layer 3 implementation

over standards foundation

• Takes advantage of lower layer developments

• Radio and antenna agnostic

• Allows rapid, standards-based development and enhancementAntenna Options

Standard Radios

802.11 MAC

Standard HardwareLinux OS

UDP/ TCP/IPS

tan

dard

s L

ayers

Tro

pos S

phere

SecurityMulti-layer

Metro-Scale Roaming

WirelessPredictiveRouting Protocol

Bert Williams

Remove FHP

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Tropos SphereTM NOSTropos SphereTM NOS

Predictive Wireless Routing Protocol™– Doubles the usable throughput

of other mesh-based solutions

Lightweight• Very low overhead (<5%) for

inter-unit communications

• Ensures the wireless network can scale without degrading performance

Dynamic path optimization• Dramatically improves end-user

throughput• Continuously optimizes performance

for client/server topology• Compensates for the changing RF

environment

SecurityMulti-layer

Metro-Scale Roaming


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Lightweight PWRP™ Control ProtocolLightweight PWRP™ Control Protocol

Possible Routing Paths

Selected Routing Paths

Tropos Control Traffic

Distributed ArchitectureMinimizes Control

Overhead Each cell exchanges path status information only with its neighbors

PWRP™ requires only ~5% available bandwidth – independent of number of cells

Network scales without incurring additional control overhead

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Self OrganizingSelf Organizing

Optimal routing paths

Alternate back-up routes

Wired backhaul

The Wi-Fi cells automatically discover one another,

Wi-Fi

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Wi-FiWi-Fi

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Wired backhaul

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Wi-Fi

The Wi-Fi cells automatically discover one another, intelligently choosing optimal paths back to the wired connection.

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Wired backhaul

Newly added Wi-Fi cells participate in auto-discovery,

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Wired backhaul

Wi-Fi

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Newly added Wi-Fi cells participate in auto-discovery, recalculating the optimal paths to the wired connection.

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Automatic ScalabilityAutomatic Scalability



Wired backhaul

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Capacity can be dynamically upgraded by adding backhaul lines as needed

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Wired backhaul


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Wi-Fi

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Wired backhaul

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Self HealingSelf Healing

Wi-Fi

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If a backhaul link fails…



Wired backhaul

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Wired backhaul

If a backhaul link fails…

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Wi-Fi

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Wi-FiWi-Fi

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…the network automatically adapts by re-assigning paths in real-time to maintain connectivity.



Wired backhaul

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Similarly, if interference causes a path to fail…



Wired backhaul

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Wired backhaul

Similarly, if interference causes a path to fail…

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…the network re-configures to route around the obstruction.

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Wired backhaul

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Metro Scale RoamingMetro Scale Roaming

Metro-Scale Roaming• Full roaming throughout

the coverage area• Maintains all

authentication connections including normal Wi-Fi security, Radius and VPN

SecurityMulti-layer

Metro-Scale Roaming


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Metro-Scale RoamingMetro-Scale Roaming

VPNAuthentication

PW: XXXX

User ID: VPN_ID

Authentication PreservedThroughout the Network

Sign-on required only at start of session

Secure connectivity continues duringre-association with nodes

SSID, WEP and VPN links maintained across entire network, including sub-nets

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Tropos Sphere NOSTropos Sphere NOS

Multi-layer Security• Allows selection of most

appropriate security procedures

• Extends wired network security to the edge of the wireless network

SecurityMulti-layer

Metro-Scale Roaming


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Wireless:64/128 bit WEP

Wireless:64/128 bit WEP

Solving Wireless Security IssuesSolving Wireless Security Issues

802.11 Wireless Network

VPN Tunnel

Tropos Control Protocol

Wired Network

VPN: IPSEC3DES/SHA1

Tropos PWRP™: AESClient

VPN Server

MACAddress Filtering

VPNTrafficFiltering

Wi-Fi Cell Wi-Fi CellWired Gateway

Wi-Fi Wi-Fi

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DHCP ServerMAC Control

VPNServer

City HallCity Hall

FireFireDepartmentDepartment

PolicePoliceDepartmentDepartment

Secure, Collaborative Metro NetworksSecure, Collaborative Metro Networks

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Wi-FiVPNServer

VPNServer

Police VPN

PW: User ID:

Metro Fiber NetworkTropos Wi-Fi Cell wireless node

Wi-Fi

Wi-FiTropos Wi-Fi Cell wired gateway

Fire VPN

Police VPN

City VPN

PW: User ID:

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Tropos SphereTM NOSTropos SphereTM NOS

• Predictive Wireless Routing Protocol™ delivers 2X the usable throughput of alternative solutions*– Lightweight: Ensures the

wireless network can scale without degrading performance

– Dynamic path optimization: Maximizes client-server throughput and continuously optimizes performance to match the changing RF environment

• Metro-Scale roaming allows secure, continuous connectivity throughout the coverage area

• Multi-layer security delivered to the edge of the wireless network

The Key to Network Scalability, Reliabilityand Economy

SecurityMulti-layer

Metro-Scale Roaming

*Compared to other mesh-based solutions


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Tropos Control™ Element ManagerTropos Control™ Element Manager• Manages the full lifecycle of a Tropos network, from planning

to operations to network expansion• Centralizes visibility and access for all network functions• Supports all of Tropos hardware and software versions

– Synchronized releases of Tropos Control and Tropos network software

• Monitors and managesTropos-specific features

• Delivers standard day-to-daymanagement capabilities– Fault reporting– Performance analysis– Configuration management– Security

• Easy to use, GUI based, runs onWindows

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Tropos Network LifecycleTropos Network Lifecycle

• Network Planning• Network engineering

• Network integration• Security strategy

• Non-technical installation

• Installation services

•Device pre-configuration

• Remote loading

• One touch remote updates

• Network capacityand performanceanalysis

• Engineering services

• Network selfconfiguration• Automatic routing

around problems • Simple repair

processes• Real-time

monitoring• Problem

isolation

ServiceProduct FeatureTropos ControlFeature

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Tropos Network LifecycleTropos Network Lifecycle

• Network Planning• Network engineering

• Network integration• Security strategy

• Non-technical installation

• Installation services

•Device pre-configuration

• Remote loading

• One touch remote updates

• Network capacityand performanceanalysis

• Engineering services

• Network selfconfiguration• Automatic routing

around problems • Simple repair

processes• Real-time

monitoring• Problem

isolation

ServiceProduct FeatureTropos ControlFeature

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Deploy, Operate, OptimizeDeploy, Operate, Optimize

• System Deployment– Profile based management– Bulk provisioning– Software loading– Task scheduling

• System Operation– Alarm Manager– Event Browser– Alarm correlation

• System Optimization– Performance thresholding– Preconfigured reports– Custom reports

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Tropos Control ArchitectureTropos Control Architecture

SNMP v2

Wi-FiWi-FiWireles

sWi-Fi

Cell Nodes

WiredWi-Fi

CellGatewa

ys

Wi-FiWi-Fi

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Wi-Fi Wi-Fi

AES EncryptedControl Traffic

Client andServer canreside on same platform

Tropos

Control

Server

Tropos Control

Web GUI

Tropos Control

AgentAgent Agent Agent

Gateway agents act as proxies for wireless Nodes

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Tropos Control: Carrier-Grade EMS Tropos Control: Carrier-Grade EMS

• Centralized management of the distributed system

• Cell configuration• Real-time network

monitoring and control• Monitoring and managing

of bandwidth hotspots• Rapid loading of different

operating profiles– Normal– Emergency

• On-air software upgrades

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Web-based Device ConfigurationWeb-based Device Configuration

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Competitive TechnologiesCompetitive TechnologiesWired IP Wired IP NetworkNetwork

Mesh networks are heavily burdened with peer-to-peer communications overhead and require proprietary client devices

AccessPoints

Clients

WirelessRouters

Client Mesh

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Competitive TechnologiesCompetitive Technologies

PD HQ

Access Point Extension

Phased array antennas focus RF beams to increase access point range

Single point AP deployments still prone to blockage and interference

Difficult to obtain metro-scale coverage

Long RangeAntennas

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Competitive TechnologiesCompetitive Technologies

Sample network design to provide dataservice to Manhattan:

Wi-Fi Advantage = 5x the performance, ¼ the cost

Cells CostPerformanc

eMacro-cell 3G

Data (1x EV-DO)

64 ~$8M 400 kbps 50 kbps

Dense-cell Wi-Fi 600 <$2M

2,000 kbpssymmetric

3G Data

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Security

Multi-layer

Metro-Scale Roaming

Wireless

PredictiveRouting Protocol

Tropos Technology SummaryTropos Technology Summary• Tropos Wi-Fi Cells

– Carrier-grade indoor and outdoor units

• Tropos Sphere NOS– Predictive Wireless Routing Protocol™

for superior performance, rapiddeployment and unfettered scalability

– Secure roaming throughout themetro coverage area

– Multi-layer security delivered to theedge of the wireless network

• Tropos Control– Wi-Fi optimized, SNMP-compliant element management

systemEnabling ubiquitous, carrier-class, broadband

wireless data networks where previously not possible

Lastmile Advanced Technologies S.ALastmile Advanced Technologies S.A

Kifisias 340 AvenueN. Psychiko, Athens

http://www.lastmile.gr