中研院有專線到日本與歐洲, 國高有專線到 I2 , 從I2也能到日本與歐洲,
但兩者有差別. 國立大學的 IP 都被骨幹 router 強制送到 I2 , 走 I2.
這是從中央的 ip 140.115.X.X (I2) 送出的結果:
traceroute to ccwww.kek.jp (130.87.104.99), 30 hops max, 40 byte packets
1 pc-gate (140.115.1.254) 2.694 ms 2.224 ms 1.613 ms
2 203.72.244.65 (203.72.244.65) 0.489 ms 0.454 ms 0.509 ms
3 210.200.47.254 (210.200.47.254) 0.699 ms 2.699 ms 1.866 ms
4 210.200.45.13 (210.200.45.13) 2.586 ms 2.089 ms 2.446 ms
5 210.200.33.6 (210.200.33.6) 2.650 ms 2.595 ms 2.209 ms
6 m20-1-3-0-OC3.jp.ascc.net (140.109.251.41) 40.081 ms 42.056 ms 40.720 ms
7 tpr3-ge0-0-0-10.jp.apan.net (203.181.248.154) 42.466 ms 43.501 ms 41.233
ms
8 sinet-vlan7-ms.jp.apan.net (203.181.249.44) 231.986 ms 230.520 ms 234.918
ms
9 nii-IX-G4-1.sinet.ad.jp (150.99.63.1) 232.928 ms 232.049 ms 230.527 ms
10 nii-S1-P0-0.sinet.ad.jp (150.99.197.141) 224.737 ms 225.408 ms 225.351 ms
11 JT-tokyo-S1-P8-0.sinet.ad.jp (150.99.197.21) 226.654 ms 227.289 ms 227.91
6 ms
12 kek-S1-P4-0.sinet.ad.jp (150.99.197.34) 235.359 ms 236.999 ms 236.059 ms
13 kek-lan.sinet.ad.jp (150.99.197.126) 236.011 ms 293.743 ms 252.822 ms
14 keksw1-kekgw.kek.jp (130.87.4.2) 235.606 ms 234.552 ms 233.248 ms
15 130.87.4.37 (130.87.4.37) 227.013 ms 227.145 ms 230.747 ms
16 ccwww.kek.jp (130.87.104.99) 226.163 ms 225.973 ms 226.827 ms
雖然這個三個和尚沒水喝的管理, 把上次 trace 的 ip (163.28.48.67
cache.tyrc.edu.tw)對外鎖住了, 但遮住別人的眼睛並不能解決問題.
還是去再借個機器 ip 再 trace 一下.
這是經過 YL Chang 調整後, 讓非 I2 ip 從 MOECC 192.83.175.111
直達中研院 140.109.251.54 到日本的結果.
兩者差異太大了, 不知國高要怎麼說明 ?
traceroute to ccwww.kek.jp (130.87.104.99), 30 hops max, 40 byte packets
1 163.28.48.65 (163.28.48.65) 0.274 ms 0.378 ms 0.236 ms
2 192.83.175.111 (192.83.175.111) 1.106 ms 1.149 ms 0.922 ms
3 g12416-0-0.4-GE.TaipeiGigaPoP.ascc.net (140.109.251.54) 1.473 ms 1.603 ms
1.885 ms
4 m20-1-3-0-OC3.jp.ascc.net (140.109.251.41) 39.336 ms 39.645 ms 39.280 ms
5 tpr3-ge0-0-0-10.jp.apan.net (203.181.248.154) 40.380 ms 40.145 ms 40.294
ms
6 sinet-vlan7-ms.jp.apan.net (203.181.249.44) 40.430 ms 41.077 ms 40.258 ms
7 nii-IX-G4-1.sinet.ad.jp (150.99.63.1) 39.965 ms 40.212 ms 40.229 ms
8 nii-S1-P0-0.sinet.ad.jp (150.99.197.141) 40.261 ms 40.548 ms 41.029 ms
9 JT-tokyo-S1-P8-0.sinet.ad.jp (150.99.197.21) 44.251 ms 41.431 ms 41.450 m
s
10 kek-S1-P4-0.sinet.ad.jp (150.99.197.34) 42.537 ms 42.523 ms 42.810 ms
11 kek-lan.sinet.ad.jp (150.99.197.126) 43.254 ms 42.880 ms 42.532 ms
12 keksw1-kekgw.kek.jp (130.87.4.2) 42.718 ms 42.577 ms 43.154 ms
13 130.87.4.37 (130.87.4.37) 43.446 ms 43.512 ms 43.708 ms
14 ccwww.kek.jp (130.87.104.99) 44.546 ms 43.259 ms 43.146 ms
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◎ Origin: 中央松濤站□bbs.ee.ncu.edu.tw From: 140.115.6.234