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TERENA compendium of national research and education networks in europe/network3.4 Core Network SizeSimilar to previous years, NRENs were asked to estimate the total sizeof their networks by multiplying the length of the various links in thebackbone with the capacity of those links in Mb/s. The resulting unit isnetwork size in Mb/s x km. This question is difficult to answer for someNRENs, but because it has been asked for a number of years, the answershave improved. It is interesting to note that GARR (Italy) has now overtakenSURFnet (Netherlands) as the NREN with the largest sized core network.Note that the scales of the graphs are logarithmic and not the same for thetwo graphs.10,000,000,000Graph 3.4.1 Core Network Size 2003 – 2006: EU and EFTA Countries10,000,000Mb/s x km2003200610,00010ACOnetBELNETCESNETUNI•CEENetFunetRENATERDFNGRNETNIIF/HUNGARNETRHnetHEAnetGARRLATNETLITNETRESTENASURFnetUNINETTPIONIERFCCNSANETARNESRedIRISSUNETSWITCHUKERNA40