One Planet. One Network. A Million Possibilities. Global Crossing October 2, 2003 Madan Shastri

One Planet. One Network. A Million Possibilities. Global Crossing October 2, 2003 Madan Shastri

Topics of Discussion Page 2 Under Sea Bandwidth Broadband Market Trends - Revenue Under Sea Lit Capacity Under Sea Capacity Utilization Global Crossing Bandwidth International Peering Trends Where we are Global Crossing Network What do we offer Open and Flexible Architecture Sub Sea Network Architecture Europe Network Architecture Metro Network Architecture Differentiators Latin America Network Differentiators Network Reliability Global IP Network Where we are headed Global Crossing Today

Undersea Bandwidth & Broadband market Page 3 CAGR = 6% Market Trends / Conditions Bandwidth circuit demand increasing Slow market revenue growth due to heavy price erosion & movement to layer 2/3 No new investment in sub-sea capacity Projects cancelled or put on hold indefinitely 360/FLAG Trans-Pacific capacity Poseidon (Mercus-1) US-LatAm capacity Continued industry consolidation Network providers reducing CapEx risk. Focusing on success-based builds or strategic builds. Successful network providers are finding strategic partners to weather the storm Customers remain very cost conscious, focusing on price optimization initiatives Customers using existing technology with less spending on newer technologies Customers have become more focused on: Network Reliability / Diversity / Service Delivery Global Reach Demand growing, prices falling, CapEx reduced Where is utilization?

Undersea Bandwidth Utilization Page 4

Global Crossing Bandwidth Page 5 4,500 4,000 3,500 Bandwidth in Gbps 3,000 2,500 2,000 1,500 1,000 500 - AC-1 AC-2 MAC PAC SAC PC-1 UKIC Ultimate 460 640 640 2,080 2,560 1,280 3,840 System 460 160 200 380 200 200 160 10G 200 160 200 320 200 200 80 2.5G 260 - - 60 - - 80 Undersea System

The Global Crossing Network Page 6 200 + On Net Cities 27 On Net Countries More than 101,000 route miles 26 Metro Networks 1.64 Tb/s from City to City, On-net 31,626 City/PoP Pairs DWDM/SONET/SDH - 10G & 2.5G MPLS IP Network Ethernet over SONET/SDH VOIP and TDM ATM & Frame Relay

Global Crossing Network Page 7 SUB SEA NETWORK Atlantic Crossing AC-1 AC-2 Mid Atlantic Crossing South America Crossing Pan America Crossing UK Ireland Crossing Pacific Crossing 1 TERRESTRIAL NETWORK GC North America GC Europe GC UK GC Latin America Trans Andean Crossing GC Mexico METRO NETWORK GC North America GC Europe

International Peering Interconnection with Global Crossing around the Globe 200+ Cities and PoPs In North America - Chicago, New York City, Seattle, Los Angeles, Miami, Mexico City, Monterrey, and 115 other cities In Europe London, Paris, Amsterdam, Frankfurt, Zurich, Milan and 32 other cities In South & Central America Sao Paulo, Buenos Aires, Santiago, Lima, Caracas, Panama 18 Cities 26 Metro Markets Chicago, NYC/Newark Bay Area, LA, Miami London, Amsterdam, Paris, Milan Peering IP and Carrier Page 8 Equinix PAIX TELX Switch & Data Most all Major Carrier Hotels Direct Customer Connections Starlight 710 Lakeshore IDT Financial Markets Partnerships Yipes XO IDT

European Network Page 9 Oslo Stockholm AC-1 Glasgow Edinburgh Sylt Copenhagen AC-2 AC-1 Dublin Kilmore Quay Wexford Bude Whitesands Londo n Paris Beverwij k Hamburg Hannover Berlin Amsterdam Dusseldorf Rotterdam Cologne Dresden Antwerp Leipzig Brussels Frankfurt Nuremberg Strasbourg Stuttgart Munich Zurich Legend Landing Points 2.5 Gig Available 10 Gig Available Connecting Systems Madrid Lyon Barcelona Geneva Turi n Marseille s Milan

Europe Differentiators Page 10 26,000Km Backbone network 37 Cities Advanced IP Network MPLS based IP-VPN IPv6 compatible With Multicasting services High Bandwidth WDM system 400G system upgradeable to 1.6Tbps Tested Surfnet10GbE on Global Crossing 10G Wavelength Wholly Owned Fiber Network Metro networks 13 Cities 77 Buildings (IP Peering, Customer, Carrier Hotels and LECs) IP-VPN, ATM, PL, Ethernet, Wavelength Services

Latin America Network Page 11 SAC PAC

Differentiators for South America Page 12 Fully redundant Sub Sea system connected via terrestrial DWDM system 10 Landing Points Connects Major South/Central American Cities Diverse backhaul systems Fiber (land) route from US to Central America 4F-BLSR SDH Rings IP, ATM, PL Wavelength Services (in 2004)

Network Reliability Page 13 Differentiators 99.9998% availability (Sep. 03) Redundant NOCs Global Provisioining End to End Testing What makes it possible MPLS based IP-VPN SONET 4F-BLSR SDH 2F MSP and Trans- Oceanic Protocol

Global Crossing IP Network Page 14 Differentiators Substantial experience in MPLS and IP networking. Significant involvement in defining standards and protocol development in the IETF. Coauthors of IETF LSP Ping Coauthors of IETF Fast Reroute Coauthors of TE Second Metric Significant involvement with development engineers from vendors such as Juniper Networks and Cisco Systems. Global Crossing s massive fiber-optic transmission network allows its IP network to scale to n x OC-192 worldwide. Owning physical plant and optical systems allows us to provision capacity on a timely manner to support high-capacity customers on quick order. Diverse subsea fiber-optic system allows high-capacity and extremely resilient servicing of trans-continental traffic. A majority of ISPs must rely on 3 rd party carriers for subsea links making it difficult to provision capacity between Europe, North America, South America and Asia. Significantly growing amount of transcontinental capacity creates huge opportunities for Global Crossing to become the premium provider of worldwide Internet services.

Where We Are Headed Page 15 Voice, Video & Data IP MPLS Ethernet DWDM SONET Optical Switching Physical Layer - Fiber Technologies for the near future 10GbE Working with vendors Next Gen SONET EOS MSPP Grooming and Hubbing Converged Services Optical Switching 40G O-E-O Vs O-O-O STS1 Vs λ Grooming First to perform test in 2001/2002 in Europe with Lucent

Global Crossing Update Page 16 As of October 8, 2003, Global Crossing received approval from FCC for transfer of control to STT. Global Crossing has withstood the instability that struck both the telecommunications industry and the economy at large Global Crossing will be emerging out of Ch. 11 within the next few weeks. And, With STT, Global Crossing s network will remain a highly secure, global fiber optic network that is in place and is seamlessly managed and operated end-to-end.

Thank You October 13, 2003 Madan Shastri, Director Transport Network Architecture and Planning Any questions please call Stephen Orlando, Director - R&E Networks @ 412-809-8800 or e-mail stephen.orlando@globalcrossing.com http://www.globalcrossing.com