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May 1993

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Re: Caching in Europe?
by Hank Nussbacher 02 May '93

02 May '93

On Fri, 30 Apr 93 13:47:58 +0200 you said: > >I haven't seen the figures, but some of the traffic from Switzerland >comes from nic.switch.ch. > >The Swiss Academic and Research network operates a fairly large anon FTP >server which mirrors many of the well known archives. > >In March 93, about 3.2 GByte of a total consumption of 20 GByte went into >the direction of the NSFnet backbone. Most certainly a large amount of >that volume was made with files we got through the NSFnet. > >Thomas Below is an extract from the April Internet Hunt results: ------------------------ Country Bytes Bytes % In % Out Gigs Ratio In Out Recv Out:In To BB From BB Hong Kong 1.9E+09 1.5E+10 0.04 0.29 14 7.986719 Greece 3.6E+08 2.1E+09 0.01 0.04 2 5.881365 Korea 2.1E+09 1.2E+10 0.04 0.24 12 5.827162 Singapore 3.1E+09 1.7E+10 0.06 0.33 16 5.423357 Brazil 1.0E+09 5.4E+09 0.02 0.1 5 5.268544 Ireland 5.8E+08 3.0E+09 0.01 0.06 2 5.105389 Poland 4.8E+08 2.3E+09 0.01 0.04 2 4.808341 Israel 3.4E+09 1.5E+10 0.07 0.3 15 4.506155 Czechoslovakia 9.7E+08 4.4E+09 0.02 0.09 4 4.502612 Spain 1.5E+09 6.6E+09 0.03 0.13 6 4.46984 New Zealand 1.2E+09 5.3E+09 0.02 0.1 5 4.294803 Italy 9.1E+09 3.4E+10 0.18 0.67 34 3.73034 Belgium 1.6E+09 5.7E+09 0.03 0.11 5 3.641767 South Africa 1.6E+09 5.6E+09 0.03 0.11 5 3.530957 Austria 6.5E+09 2.1E+10 0.13 0.41 20 3.238235 Hungary 3.4E+08 1.1E+09 0.01 0.02 1 3.172214 United Kingdom 3.3E+10 1.0E+11 0.64 2.01 102 3.120415 Mexico 3.8E+09 1.1E+10 0.07 0.21 10 2.765493 Canada 8.4E+10 2.3E+11 1.64 4.51 230 2.75814 Germany 3.6E+10 9.7E+10 0.71 1.89 96 2.682364 Norway 1.0E+10 2.7E+10 0.2 0.53 26 2.652069 Chile 1.2E+09 3.3E+09 0.02 0.06 3 2.62276 Taiwan 1.2E+10 3.0E+10 0.23 0.58 29 2.486676 Portugal 9.3E+08 2.3E+09 0.02 0.04 2 2.476198 Puerto Rico 7.9E+08 1.5E+09 0.02 0.03 1 1.938452 Japan 1.2E+10 2.4E+10 0.24 0.46 23 1.923033 Sweden 3.1E+10 5.2E+10 0.6 1.02 52 1.686067 France 3.8E+10 6.0E+10 0.73 1.17 59 1.594334 Australia 4.5E+10 6.1E+10 0.88 1.19 61 1.353244 Netherlands 2.7E+10 3.6E+10 0.54 0.7 35 1.311529 Switzerland 4.0E+10 3.8E+10 0.77 0.75 38 0.968221 Denmark 1.5E+10 1.4E+10 0.28 0.27 13 0.934667 United States 4.7E+12 4.1E+12 90.89 80.93 4143 0.890443 Finland 4.0E+10 2.5E+10 0.79 0.5 25 0.628287 ------------------------ I would be interested in hearing details of the FTP archive servers being run at Switzerland/Denmark/Finland. How many gigabytes? How many files requested per month? What is the average size of a file requested? Which file is requested most often? What percentage is local requests? What percentage is European requests? What percentage is non-European requests? Which systems do you mirror files for? You get the general idea. Thanks, Hank

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