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標 題中研院與國高的雙路由問題 ? I2 還是有差別 !
發信站中央大學松濤風情資訊站 (Fri Jan 2 23:11:11 2004)
轉信站ptt!ctu-reader!ctu-peer!news.nctu!news.CDPA.nsysu!news.nsysu!news.ccu!
> > > 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:
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這一段應該是 Y.L. Chang 的勢力範圍了:
竟然 I2 的 ip 被從 140.109.251.145 就趕下車, 沿途停靠 abilene 回來.
相差約 20 ms , 被國外中研院的 router 趕下車總不會覺得有鄉親的感覺.
請 Y.L. Chang 費心留意一下. 拜託不要齊頭變慢, 像 ucl.ac.uk 就不讓
人覺得有直達歐洲 !
su-2.03# traceroute www.cern.ch
traceroute to webr2.cern.ch (137.138.28.230), 30 hops max, 40 byte packets
1 cache (140.115.13.3) 0.502 ms 0.368 ms 0.372 ms
2 163.28.48.65 (163.28.48.65) 0.726 ms 0.469 ms 0.480 ms
3 TANetBackbone-MOE.edu.tw (192.83.196.111) 1.407 ms 1.329 ms 1.317 ms
4 203.72.43.210 (203.72.43.210) 1.350 ms 1.257 ms 1.327 ms
5 203.72.43.245 (203.72.43.245) 1.490 ms 1.524 ms 1.462 ms
6 m160-1-2-0.100.TaipeiGigaPoP.ascc.net (140.109.251.50) 1.775 ms 1.885 ms
1.717 ms
7 m20-0-3-0-OC12.chi.us.ascc.net (140.109.251.61) 181.334 ms 181.334 ms 181
.181 ms
8 StarLight.CERN.ch (140.109.251.145) 193.939 ms 192.325 ms 193.501 ms
9 cernh5-so-000.cern.ch (192.65.184.54) 308.800 ms 308.587 ms 309.060 ms
10 cernh2-vlan2.cern.ch (192.65.192.2) 313.149 ms 310.276 ms 309.755 ms
11 webr2.cern.ch (137.138.28.230) 313.644 ms 310.162 ms 309.611 ms
12 webr2.cern.ch (137.138.28.230) 310.327 ms 309.593 ms 309.853 ms
13 webr2.cern.ch (137.138.28.230) 309.510 ms 309.652 ms 310.367 ms
14 webr2.cern.ch (137.138.28.230) 310.284 ms 316.964 ms 310.152 ms
su-2.03# ping -R -c 1 140.109.251.145
PING 140.109.251.145 (140.109.251.145): 56 data bytes
64 bytes from 140.109.251.145: icmp_seq=0 ttl=246 time=210.492 ms
RR: cache.tyrc.edu.tw (163.28.48.67)
192.83.175.115
GE-cht-MOECC.TaipeiGigaPoP.ascc.net (140.109.251.53)
m160-2-0-0-OC12.tw.ascc.net (140.109.251.62)
GE-160.StarLight.ascc.net (140.109.251.146)
StarLight.CERN.ch (140.109.251.145)
chinng-iplsng.abilene.ucaid.edu (198.32.8.76)
iplsng-kscyng.abilene.ucaid.edu (198.32.8.80)
kscyng-dnvrng.abilene.ucaid.edu (198.32.8.14)
--- 140.109.251.145 ping statistics ---
--
◎ Origin: 中央松濤站□bbs.ee.ncu.edu.tw From: 140.115.6.234