Smart People Buy Dumb Pipes

network architecture IRU/owned fiber Our network is facilities based- IRUS on fiber & ownership of all optronics and routing equipment. • Longhaul and metro backbone is built from a diverse set of 321 IRU suppliers . Owned fiber allows unique rights of way IRUS from 10 to 44 years; many are pre-paid and have diverse end dates • O+M expenses are calculated by share of fiber pairs thereby reducing the cost to Cogent of maintaining a network Cogent's IP network is ring protected at Layer 3 (IP convergence) All transport is IP directly over DWDM and CWDM Cogent generally owns lateral connections from the metro rings to the building Cogent owns riser facilities in multi-tenant buildings Cogent owns 60 data centers and 210 hubs that house core network equipment 4 of the 60 Cogent Data Centers were buildings acquired through the Sprint acquisition and converted into data centers. There are 41 more buildings totaling over 1 million square feet and approximately 100 megawatts of power Cogent has acquired 482 technical buildings to be used to further expand the network Wave network will be directly connected to 777 US CNDCs cogent Smart People Buy Dumb Pipes 14

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