Frame Relay and ATM Services

1. Frame Relay and ATM Services < Customer Presentation >

2. Frame Relay / ATM Advantage • Mature, stable, cost-effective, standards-based WAN connectivity • Fractional DS1 to OC-12 • Guaranteed bandwidth • Alcatel MultiService Platform • Inherent Frame to ATM Interworking • Industry’s best integrated management system for monitoring, reporting, provisioning, and troubleshooting • High availability Soft Permanent Virtual Circuits (SPVC) • Fast, node-based restoration • Customer reporting via web portal • Proactive monitoring • Internet access available

3. Vital Statistics • National Frame Relay/ATM Network • Single core backbone support both Frame Relay and ATM services • Switches deployed in 32 markets, 8 cities with diverse switch access • Frame Relay NNI connectivity to 98% of U.S. LATAs • Designed for maximum network availability • Network Composition • Every switch deployed with diverse inter-machine trunking. Off-net circuits acquired when on-net diversity not available • Switch Breakdown • 35 Alcatel 7470s • 5 Alcatel 7670s core switches

4. Architectural Strengths • Expandable nodes- deployed in minimal configuration to support known requirements, grows with need • Supports all ATM and Frame Relay services at every switch • Systems deployed with fully redundant common cards • Each switch has fully diverse trunking to ensure protection against transport events • High end Alcatel 7670 switches deployed in core cities to aggregate lower-tier traffic and serve high-volume customer traffic directly • Multiple route/reroute techniques available - NMS controlled or SPVC • PNNI automatically signals SPVCs along lowest latency paths

5. Frame Relay / ATM Backbone

6. Frame Relay Services • Corporate WAN Network Connectivity • Migration Path to High Speed Frame Relay or ATM Interworking • Variable Port Speeds • 56/64 Kbps • DS1 (128Kbps to 1536Kbps) • DS3 • Asymmetrical or Symmetrical CIR • LEC UNI, Direct or DSL Access • Generous burst policy • Disaster Recovery • Intralata Frame Relay

7. Frame Relay Offers • Frame Relay Service: *Comes with Every Network Purchased from Broadwing • Network-based SLA • Network-based web reports via Tsoft • Enhanced Frame Relay Service: *Must Purchase Paradyne FrameSavers at each site • End-to-End SLA* • End-to-End web reports via Paradyne CPE • Proactive monitoring at customer network/PVC level • Proactive opening of trouble tickets and customer notification

8. FrameConnect • Innovative pre-packaged Frame Relay Service • Up to 14, 28, or 50 locations • Port speeds of 1.544 Mbps, 512 Kbps • “Two host” solution for Disaster Recovery and regional network configurations • Two PVCs for every port Remote Offices FrameConnect: The customer’s primary and secondary host sites reside in different geographic regions. Example: Customer with primary site in Cincinnati and backup in Washington DC. Customer has 11 remote offices spread across the US and will subscribe to FrameConnect 14 – 1.5M. ……… BRW POP T1 Frame Relay Ports DS3 ATM Port DS3 ATM Port 384K PVCs BRW POP BRW POP Primary Secondary Primary DS-3 Secondary DS-3 Secondary Customer Site Washington, D.C. Primary Customer Site Cincinnati

9. Frame Relay SLA • Network-based & end-to-end guarantees for domestic & international service* • Latency (1 way): 65ms network, 100ms end-to-end • Credit: 10% of affected ports and PVCs • Data delivery: 99.99% of CIR frames network, 99.5% end-to-end • Credit: 10% of affected ports and PVCs • Availability: 100% network, 99.9% end-to-end • Credit: 10% of affected ports and PVCs • Mean time to repair: 4 hours • Credit: 10% of affected loops, ports and PVCs • Requirements: • 3 site minimum to qualify for SLA • Broadwing provided Paradyne CPE required for end-to-end SLA * See specific SLA for international metrics

10. ATM Services • Multi-megabit Corporate WAN Network Connectivity • Variable Port Speeds • DS1, DS3 • NxDS1 (IMA) up to 8 • OC-3, OC-12 • Asymmetrical or Symmetrical SIR • Generous Burst Policy • UNI or Direct Access • Class-of-Service Options Include: • CBR, VBR-rt, VBR-nrt, UBR • FRASI (Frame Relay to ATM Service Interworking) • Network-based SLA, End-to-End w/Managed Router Service • Network-based Web Reports • Disaster Recovery

11. ATM SLA • Network-based guarantees for domestic and international service* • Latency (1 way): 65ms • Credit: 10% of affected ports and VCs • Data delivery: CBR: 99.9999% of SIR Frames Other: 99.99% of SIR Frames • Credit: 10% of affected ports and VCs • Availability: 100% network • Credit: 10% of affected ports and VCs • Mean time to repair: 4 hours • Credit: 10% of affected loops, ports and VCs • Requirements: • 3 site minimum to qualify for SLA * See specific SLA for international metrics

12. Frame Relay and ATM management to the data service unit (DSU) Paradyne FrameSaver DSU/channel service unit (CSU) OpenLane Service Level Management (SLM) solution End-to-end monitoring and intelligent data collection Real-time performance monitoring Detailed historical reporting Saves money and provides change justification via utilization reporting Broadwing Enhanced Frame Relay Service Branch Site Branch Site Frame Relay/ATM HQ Branch Site Router DSU

13. Service level verification summary (network) Frame delivery ration Frame transfer delay Service availability Service level verification detail (per PVC) Frame delivery ration Frame transfer delay Service availability Point-of-failure analysis PVC congestion DTE port errors Network port errors Capacity reporting Network capacity and throughput PVC transmit activity Port trend analysis Network tuning Top IP communicators Protocol distribution Enhanced Frame Relay Service Anytime, anywhere access to reporting via Web browser

14. CPE Services • One-stop-shop for network and CPE services • One contract, one invoice • Services summary • CPE hardware • Installation and maintenance • Maintenance • Next-business-day response (5x8) • Four-hour response (24x7x365) available • Extensive coverage • Onsite service technicians • Sparing depots across the United States

15. Managed CPE Cisco routers Cisco PIX FW Paradyne Framesaver CSU/DSU Cisco IDS Non-managed CPE Cisco routers Paradyne CSU/DSU Adtran CSU/DSU Standard CPE Kits

16. International Frame Relay and ATM

17. Extensive International Coverage

18. International Frame Relay and ATM Infonet Partnership • Broadwing partners with Infonet, an established facilities-based international data provider • A 30-year legacy of continuity and stability • Extensive international footprint with data services in 70+ countries • Global support infrastructure “Infonet’s business is cross-border communications, an expertise that’s difficult to develop.” - Mark Winther, International Data Communications

19. Integrated Services and Processes • Diverse east and west international gateways • No single point of failure • Enhanced performance • Integrated processes resulting in • Quicker quote turnaround time • Seamless order and trouble resolution • Comprehensive SLA metrics and benchmarks • Shared Web tools • Improved reporting and troubleshooting

20. Argentina • Australia • Austria • Azerbaijan • Belgium • Bolivia • Brazil • Canada • Chile • China • Colombia • Costa Rica • Czech Republic • Denmark • Ecuador • Egypt • El Salvador • Estonia • Korea • La Reunion • Latvia • Lithuania • Luxembourg • Malaysia • Martinique • Mexico • Netherlands • New Zealand • Nicaragua • Norway • Panama • Peru • Philippines • Poland • Portugal • Puerto Rico • Finland • France • French Guyana • Germany • Georgia • Greece • Guadeloupe • Guatemala • Honduras • Hong Kong • Hungary • India • Indonesia • Ireland • Israel • Italy • Japan • Kazakhstan • Romania • Russia • Singapore • Slovak Republic • South Africa • Spain • Sri Lanka • Sweden • Switzerland • Taiwan • Thailand • Turkey • Ukraine • United Kingdom • USA • Uzbekistan • Venezuela Global Network Coverage

21. International Network Infrastructure • High-speed backbone • ATM core (Marconi) infrastructure • Nortel Passport frame relay switches • Seamless frame and ATM interworking (FRASI) • Maximum flexibility and cost-efficiency • Extensive footprint • Direct frame relay connection in 52 countries • Extended by interconnect to 71 • Multiple paths between sites • Average meshing is 3.5 trunks to 1 switch • Automatic reroute capabilities • Network topology adapts to traffic patterns and levels

22. International Frame Relay • Service available in 70+ countries • Standard port speeds available from 56/64 Kbps to E1 • Flexible committed information rate (CIR) options • Available worldwide in 4 Kbps granularity • Asymmetric CIR to maximize cost efficiency • Generous bursting policy • Single aggressive SLA for all domestic and international sites • Free detailed frame relay reporting

23. Argentina Australia Austria Belgium Brazil Canada Chile Czech Republic Denmark Finland France Germany Hong Kong India Ireland Israel Italy Japan Korea Luxembourg Malaysia Mexico Netherlands Norway International ATM Country Availability • Peru • Singapore • Spain • Sweden • Switzerland • Taiwan • United Kingdom

24. International ATM Service Features • Available in 30+ countries • Access speeds • (n x) T1/E1, DS3/E3, OC3/STM-1 • Multiple classes of service (CoS) • Constant bit rate (CBR) • Variable bit rate – real-time (VBR-rt) • Variable bit rate – non real-time (VBR-nrt) • Asymmetrical billing for maximum cost efficiency • Seamless frame relay to ATM interworking (FRASI) • FRF.8, FRF.5

25. The Broadwing Advantage • Guaranteed performance • Network and End to End SLAs • Exceptional network reliability • Comprehensive service features • Drill-down Web-reporting tools for network and loops • Proactive monitoring, trouble-ticketing and customer notification • Seamless international connections • Disaster recovery • Flexibility for changing needs