Softlayer的Dallas机房网络优化的不错啊

[Tianpu]

shell# traceroute www.google.com
traceroute to www.l.google.com (74.125.227.17), 128 hops max, 52 byte packets
****************************************
4 10g.eq01.dal01.google.com (66.228.118.226) 0.789 ms 0.790 ms 0.782 ms
5 72.14.233.77 (72.14.233.77) 0.816 ms 0.812 ms 0.806 ms
6 216.239.47.54 (216.239.47.54) 1.097 ms 1.142 ms 1.085 ms
7 dfw06s03-in-f17.1e100.net (74.125.227.17) 0.863 ms 0.864 ms 0.906 ms


shell# traceroute www.bing.com
traceroute to a134.b.akamai.net (63.97.127.9), 128 hops max, 52 byte packets
************************************************
4 border4.lacp-10.softlayerexempt-6.ext1.dal.pnap.net (216.52.189.185) 0.985 ms 1.188 ms
border3.lacp-10.softlayerexempt-9.ext1.dal.pnap.net (63.251.44.49) 0.957 ms
5 mpr1.te0-0-0-bbnet1-sw1.ext1.pnap.net (216.52.191.6) 0.875 ms
mpr1.te3-0-0-bbnet2.ext1.dal.pnap.net (216.52.191.68) 0.865 ms 0.867 ms
6 0.ge-0-1-0.GW3.DFW13.ALTER.NET (65.208.15.229) 1.804 ms 1.154 ms 1.090 ms
7 63.97.127.9 (63.97.127.9) 0.959 ms 0.945 ms 0.993 ms

1ms内啊

物理距离上最远不会超过300公里 应该是和google bing 在Dallas的机房直连了

[santa]

好一点的机房都跟google这些大网站有peering的，cdn提供商在很多机房都有pop的