Tropos Technology OverviewTropos Technology OverviewAugust 2004
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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
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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
WirelessPredictiveRouting Protocol
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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,
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Self OrganizingSelf Organizing
Optimal routing paths
Alternate back-up routes
Wired backhaul
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The Wi-Fi cells automatically discover one another, intelligently choosing optimal paths back to the wired connection.
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Self OrganizingSelf Organizing
Optimal routing paths
Alternate back-up routes
Wired backhaul
Newly added Wi-Fi cells participate in auto-discovery,
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Self OrganizingSelf Organizing
Optimal routing paths
Alternate back-up routes
Wired backhaul
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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
Optimal routing paths
Alternate back-up routes
Wired backhaul
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Capacity can be dynamically upgraded by adding backhaul lines as needed
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Automatic ScalabilityAutomatic Scalability
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Optimal routing paths
Alternate back-up routes
Wired backhaul
Capacity can be dynamically upgraded by adding backhaul lines as needed
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Automatic ScalabilityAutomatic Scalability
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Capacity can be dynamically upgraded by adding backhaul lines as needed
Wi-Fi
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Optimal routing paths
Alternate back-up routes
Wired backhaul
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Self HealingSelf Healing
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If a backhaul link fails…
Optimal routing paths
Alternate back-up routes
Wired backhaul
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Self HealingSelf Healing
Wi-Fi
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Optimal routing paths
Alternate back-up routes
Wired backhaul
If a backhaul link fails…
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Self HealingSelf Healing
Wi-Fi
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…the network automatically adapts by re-assigning paths in real-time to maintain connectivity.
Optimal routing paths
Alternate back-up routes
Wired backhaul
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Self HealingSelf Healing
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Similarly, if interference causes a path to fail…
Optimal routing paths
Alternate back-up routes
Wired backhaul
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Self HealingSelf Healing
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Optimal routing paths
Alternate back-up routes
Wired backhaul
Similarly, if interference causes a path to fail…
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Self HealingSelf Healing
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…the network re-configures to route around the obstruction.
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Optimal routing paths
Alternate back-up routes
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
WirelessPredictiveRouting Protocol
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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
WirelessPredictiveRouting Protocol
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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
WirelessPredictiveRouting Protocol
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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
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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