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ICG BRAN Extension Marla Meehl NCAR 07/17/02 ICG BRAN Extension Marla Meehl NCAR 07/17/02

Technical Advantages • Long term technical goal of BRAN to access central offices – Technical Advantages • Long term technical goal of BRAN to access central offices – Eliminates last mile costs – Increases flexibility – Increases vendor competition • Virtually unlimited access to bandwidth on dark fiber • Very flexible configuration to meet constituent WAN networking needs – Expands BRAN to the national fiber infrastructure • Long term growth potential

Cost Advantages • Extremely cost effective – NCAR/DOC/City currently have an OC 3 to Cost Advantages • Extremely cost effective – NCAR/DOC/City currently have an OC 3 to Denver for our WAN connectivity (155 Mbps) • 5, 745. 81/month; $68, 949. 72; $482, 648. 04/7 years – This bandwidth is inadequate • We will have to upgrade to an OC 12 in the next couple of months – $10 K/month for a leased OC 12 to Denver; $120, 000/year; $840, 000/7 years – We would pay $1, 675. 58/mo for a pair of fibers from the ICG CO in Boulder to the FRGP • $20, 106. 96/year; $140, 748. 72/7 years • This saves these partners $699, 251. 28 at a minimum over 7 years • An OC 12 would not last us 7 years, so the savings is really greater. – This does not include CU-Boulder savings

Overall Advantages • Increasing capacity is relatively easy, cost effective and fast: – Cisco Overall Advantages • Increasing capacity is relatively easy, cost effective and fast: – Cisco 6509 Ethernet switches can support 1 Gbps (1000 Mbps) and 10 Gbps (10, 000 Mbps) • We already have the hardware since it is used in the LAN • In order to get the 10 times increase in capacity to 10 Gbps, we only have to buy a card for the 6509 switches at each end • We don't have to pay to install a new expensive recurring cost circuit - we already have the fiber • This scales beyond 10 Gbps - once we have the fiber, we can continue to grow the network as needed

Overall Advantages • This provides the necessary dark fiber access national networks such as Overall Advantages • This provides the necessary dark fiber access national networks such as Light. Rail/Teragrid/etc. • This allows a reduction in service costs for existing services for all BRAN partners since we eliminate the distance charge to the Boulder CO by using BRAN • This was a long time goal of BRAN • Provide faster access to the FRGP and the services there: Commodity Internet, Abilene, intra-FRGP, and future services