SinoCDN LinkEasy Solution Technology & Application Creating New Business Opportunity Oct 2002

1. SinoCDN LinkEasy SolutionTechnology & ApplicationCreating New Business OpportunityOct 2002

2. LinkEasy Product Line • LinkEasy Standalone Edition (LE-1000) • Designed for merchants like cafe, restaurants, business centre, property operators and hotels to collect internet access charge • LinkEasy Services Provider Edition (LE-2000) • Designed for both merchants and internet service providers to collect the internet access charge • Internet service provider could • Provide value added solution on top of broadband service • Boost the sales of the broadband service • Extend point of presence (POP) to Public Access Points or Hot Spots for its subscribers or roaming users • Differentiate its service from their competitors, attracting more customers to pay for their core business service • Absorb more commercial broadband users which have a strong need to access internet in hotspot with company account • Property owner could charge the internet access at its premises like building, shopping mall, MTR stations through ISP

3. RetrieveAccount Information • User Profiles • Customized Services • Service Usages ApplicationServer PortalServer Email Server MediaServer Why LinkEasy Can Create New Business Opportunity? 1. Convenient to users - Subscribers enable their own access services through their browser. PersonalizedService Portal IP ServiceSwitch Ethernet or xDSL network Authentication? Yes 2. Manage network resources by controlling bandwidth usage and service usage 3. Localized Advertisement on login webpage LE-1000 Internet • 4. Versatile Billing Model $$$$$ Hotels or Service Providers Billing System

4. Deployment Scenario using LE-1000 SinoCDN LE-1000 Internet Simply plug in the network connector provided and it is ready to be online!! Hotel PCs, Business Travelers Notebooks or Wireless Internet Access Devices

5. Simple Deployment Model Hotels, Schools, Office, ISPs, ASPs Network Providers. Telecom Easy to deploy and sell their bandwidth and value-added services Internet LinkEasy Manager Schools, institution, Shopping malls Hotel / MDU Offices, Cafe, MTR/airport stations LAN LAN LAN LAN LAN LAN

6. LinkEasy Solution Architecture Policy & Network Management • MediaOS • Development kernel of LinkEasy • Security • Provided by MediaOS for secure access and management environment • QoS • Provided by MediaOS for traffic and bandwidth management • AAA • Authentication, Authorization & Accounting • Network Access • Broadband Internet access service • Value-Added Services • NAT, VLAN, HTTP, FTP, streaming, SMTP relay, portal advertisement etc. • Policy & Network Management • Management and Policy control for authentication, billing, QoS, security, other services and the whole LE system Value-Added Services Network Access AAA Security QoS MediaOS

7. LinkEasy Service Provider Edition • LinkEasy-2000 • Contain all basic features of LinkEasy Standalone Edition • Provide global account roaming capability • Support walk-in users account generation • LinkEasy Manager • Authenticate users to corresponding ISPs RADIUS servers • Gather and generate centralized billing information to support various kinds of billing model • Provide centralized network monitoring and management • LE-2000 and LinkEasy Manager work together as Service Provider Platform to create new business opportunity !!

8. RADIUS server Billing Server LinkEasy SP Edition Standard Deployment Scenario Internet Service Provider Network LinkEasy Manager Billing Information flow LE-2000 LE-2000 Chain Hotel LE-2000 Chain Cafe Real Estate

9. Current Released Features of LinkEasy • Features of LE-1000 & LE-2000 • Plug and Play Access (DHCP and Static IP) • High-speed Internet connectivity (Fast Ethernet) • NAT, PAT • Centralized authentication and billing management • SMTP Relay • Time-Based Billing • Check-in/out Time Editing • Unplugged logout & Expire timeout detection • Port-Based Authentication (Bill my room) • Web-Based Administration Interface • No Client Software Required, login through web browser • Traffic Shaping (Bandwidth limiting) • Free Access Sites, Portal advertisement • Portal Denial Rules • Portal Redirection

10. Current Released Features of LinkEasy • Features of LE-1000 & LE-2000 (cont..) • IEEE802.1q per port VLAN support • RADIUS Support (LE-2000 + LEM) • Login Account, billing my room account & ad-hoc (walk-in generated) account (LE-2000) • Power supply redundancy (LE-2000) • Statistics Gathering & Analysis • Log data backup to remote site • Protocol support: HTTP, HTTPS, FTP, SMTP, POP3, IMAP, ICQ, TELNET etc.

11. Benefits of Deploying LinkEasy Service Provider Edition • Controllable Revenue • Instead the revenue of Hotel, hotspots & Cafe controlled by their infrastructure service provider, they can control the revenue of new service by themselves • New value-added services can leverage the core business and generate more revenue • Hotel, Hotspots & Cafe can promote their core business services in promotion web page through LE-SP

12. Benefits of Deploying LinkEasy Service Provider Edition (cont.) • Solve traffic loading problem for authentication and metering system put in centre of the network • In such a centralized approach, all Internet traffic will go through that system at the network centre • It poses traffic loading problem when number of broadband users at the network edge increases • Failure of any centralized system will result in service interruption to all users • The BRAS also has its capacity limitation for upgrade • Distributed authentication and metering is more desirable to avoid aggregated loading to the system in the network centre • LinkEasy distributed architecture allows add-on-demand to achieve a highly scalable solution

13. RADIUS Telco IP Network Internet Deployment Scenarios of LinkEasy Solution for Telco/ISP (Scenario 1) • LinkEasy SP Edition is located in Property/Hotel premises Router Layer3 switch LinkEasy Manager Router ADSL Modem LE-2000 LE-2000 Layer2 switch Layer2 switch Property 1 Property 2

14. Deployment Scenarios of LinkEasy Solution for Telco/ISP (Scenario 1) • The benefits of this deployment for Telecom Carrier are • The account administrative functions of LE-2000 can be kept within the LAN, thus it will not be affected even if the WAN link is congested or disconnected • For VLAN configuration, deploying LE-2000 in Hotel/Property premises would allow flexible control and ease of management by Service Provider • Our patented QoS feature can intelligently define and prioritize the WAN Link traffic, which is commonly the bottleneck for downstream and upstream access. E.g. if 100 active users connected to a 10Mbps Ethernet WAN Link, each active user at most can use 100kbps for data transmission. If the traffic priority cannot be policed, users have to contend for the limited bandwidth resources, as a result, all users are suffered. • It allows user with higher priority can have bandwidth guaranteed for both upstream and downstream data transmission so that true broadband performance is delivered.

15. RADIUS Internet Deployment Scenarios of LinkEasy Solution for Telco/ISP (Scenario 2) • LinkEasy SP Edition is located in Telecom Carrier Facility Centre LinkEasy-SP stack Router LinkEasy Manager Layer3 switch Layer3 switch Layer3 switch Layer2 switch Layer2 switch Property 1 Property 2

16. Deployment Scenarios of LinkEasy Solution for Telco/ISP (Scenario 2) • The benefits of this deployment for Telecom Carrier are • Better utilization of LE-2000, they can share the concurrent license among Hotels/Properties • It is more convenient for Telecom operators to perform hardware maintenance and basic network operations • However, for this kind of deployment, there are a number of drawbacks: • The network between Telecom Carrier and Hotel/Property should be highly reliable since once the network connection is congested, the hotel staff would not be able to access the account administration interface, and may also contend with the user data traffic • VLAN enabled switches to separate different Hotel/Property traffic may lead to performance degradation of core switches, which in turn would affect user access performance

17. Authentication message between LE and LEM Internet Authentication message between LEM and RADIUS server RADIUS sends user information to billing server LinkEasy Deployment in Hospitality LinkEasy Manager L2 Switch 4/F 3/F 2/F Router / ADSL modem L3 Switch 1/F Hotel, Property or Hospitality LinkEasy Operator machine RADIUS Server Billing Server Hotel, Property or Hospitality

18. Router Operator machine L3 Switch RADIUS Server LinkEasy Manager Campus Backbone L3 Switch LinkEasy L3 Switch L3 Switch L3 Switch LinkEasy L2 Switch LinkEasy LinkEasy L2 Switch L2 Switch L2 Switch AP Residential Hall Canteen Engineering School Business School Internet LinkEasy Deployment in Campus

19. Internet LinkEasy Deployment in Hotels or Retail Chain Operators RADIUS Server Router Billing Server Operator machine L3 Switch ISP Network Router /ADSL modem Router /ADSL modem LinkEasy Manager LinkEasy Router /ADSL modem LinkEasy LinkEasy L2 Switch L2 Switch AP L2 Switch AP AP Hotel, Retail Store, Restaurant Hotel, Retail Store, Restaurant Hotel, Retail Store, Restaurant

20. Authentication message between LE and LEM Internet Authentication message between LEM and RADIUS server RADIUS sends user information to billing server LinkEasy Deployment in Wholesale Solution(Multiple-ISPs to Hotspots) RADIUS Server Billing Server Billing Server RADIUS Server ISP A ISP B Telco Network LinkEasy LinkEasy Shopping Mall, Café, Merchant stores, Public transportation terminal LinkEasy Manager L2 Switch LinkEasy L2 Switch AP L2 Switch AP AP Shopping Mall, Café, merchant stores, Public transportation terminal Shopping Mall, Café, Merchant stores, Public transportation terminal

21. Limitation of Current Hotspots Wireless Service • Wireless services deployed is often limited to its own subscribers only, so revenue generated from the Hotspots are very limited. • Other retail ISPs and walk-in users have no ways to enjoy the wireless internet service SinoCDN LinkEasy SP Edition could be deployed by the service provider to act as Universal Services Provider (USP). The USP offers service to other retail ISPs and walk-in users.

22. Wireless USB Client Authenticate Retail ISP user accounts using Retail ISP RADIUS Server through LinkEasy Manager or ISP 1 ISP 1 RADIUS server ISP 2 ISP 2 RADIUS server Wireless PC Card LinkEasy SP Edition USP Deployment Scenario USP’s IDC USP RADIUS server LE-2000 LE-2000 LE-2000 LinkEasy Manager LE-2000 • Centralized Network Monitoring • Real-time configuration • User Account Management & Integration • Billing system integration

23. Universal Services Provider Biz Model • For Service Provider Account users • For existing broadband users in USP, they can use USP accounts to access internet . Users receive the bill from USP by the end of each month => USP get all the revenue generated • For Other Retail ISP Account users • The Retail ISP account holders can make use of their existing accounts to access internet in the Hotspots • Since “LinkEasy Manager” collected all internet access traffic details, USP then can charge the Retail ISPs for such roaming services => USP, Retail ISP can share the revenue • For Walk-in users • Walk-in users can also enjoy the wireless broadband internet access through LinkEasy available hotspots. The hotspot operators create an account in the Hotspots • Hotspots, coffee shop or hotels collect the wireless broadband services charge from those walk-in users. At the end of a month, USP can charge those Hotspots based on the different charging schemes like access time, traffic volume etc. => USP & Hotspots can share the revenue

24. Benefits of Universal Service Provider Biz Model Benefits of USP • Leverage existing infrastructure to increase revenue on internet access • Attract other retail ISPs to provide wireless internet access service to their subscribers • Can make use of LinkEasy free site promotion channel to promote other services Benefits of Retail ISPs • Provide value-added services to existing subscribers • Attract more users to subscribe to their broadband • Minimal investment for launching the services extensively • Differentiate its service from their competitors, attracting more customers to pay for their core business service • Can make use of LinkEasy free site promotion channel to promote other services • No need to hire extra people to operate or manage the wireless infrastructure, since USP has already provided such services

25. Benefits of Universal Service Provider Biz Model (cont.) Benefits of Hotspots/Property Owner • Provide additional revenue from wireless internet access • Make use of LinkEasy free site promotion channel to promote other services