![]() ![]() Users Earthlink: 5 million users Netzero/Juno: 5 million usersĬomcast/ATT: 3.6 million users SBC Internet Services: 2.2 millionĬalRENCalREN-HPR: 2/2004 to presentHPR: 2/2004 to present Estimated user base is 10 million faculty, staff andĪOL: 26 million users CalREN-DC: 10 million users MSN: 9 million.Serving: – California State University (all campuses) –Ĭalifornia Community Colleges (all campuses) – University ofĬalifornia (all campuses) – ~80% of K-12 schools in.“no-cost” private peerings at PAIX, LAAP, SDNAP.Six GE links to the commodity Internet (Qwest, Level3,.(2.5 Gbps) backbone over private DWDM fiber amplification and regeneration needed for longer distancesĬalREN backbone wavesCalREN backbone wavesĬalRENCalREN-DC: 10/2003 to presentDC: 10/2003 to present.Wave Division Multiplexing (sort of) demystifiedWave Division plus, ISP “sub-layer” within CalREN-DC EE122, 12ĬalREN Optical Backbone, ca.small number of researchers requesting dark fiber between.Routing protocols – experiment with “dangerous” packets ![]() researchers requesting “private pipes” between campuses –Įxperiment with non-IP (unroutable) packets – experiment with.Multiple high-speed (2.5 Gbps, 10 Gbps, 40 Gbps, …)Ĭhannels over a single fiber pair (single fiber strand in some development of wave division multiplexing technology – providing. ![]() Run well-tested code, let somebody else find the bugsĬonstantly changingavoid change whenever possibleĪdvanced Services NetworksProduction NetworksĬENIC next generation backbone considerations (2)CENIC next Run new code as soon as it becomes available
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