請教一個tracert的問題



贊助商連結


No1UlonTea
2010-10-31, 10:43 AM
各位好,
當我在使用tracert查詢以下兩個都在日本的ip時,
出現了使我迷惑的現象.

一個是看起來直接連到日本去,
另一個卻是到美國繞了一圈再到日本.
我知道route是有可能些許不同,
但繞到美國會不會太大一圈了@@?
請問這是什麼因素造成的呢?
才疏學淺,請各位先進不吝賜教.
先謝謝了.

以下附上tracert的表列:

tracert 203.196.19.236

Tracing route to pv12.softether.com [203.196.19.236]
over a maximum of 30 hops:

1 35 ms 34 ms 34 ms h254.s98.ts.hinet.net [168.95.98.254]
2 34 ms 34 ms 34 ms tp-sc-c6r2.router.hinet.net [168.95.171.46]
3 35 ms 36 ms 34 ms SNUH-3201.hinet.net [220.128.5.198]
4 35 ms 34 ms 34 ms TPDT-3011.hinet.net [220.128.3.18]
5 46 ms 34 ms 70 ms r4003-s2.tp.hinet.net [220.128.3.29]
6 35 ms 34 ms 34 ms 220-128-7-221.HINET-IP.hinet.net [220.128.7.221]

7 202 ms 202 ms 202 ms anc-jp-gw.hinet.net [211.72.233.161]
8 202 ms 202 ms 202 ms te3-2.gw2.nrt2.asianetcom.net [202.147.1.185]
9 202 ms 202 ms 200 ms NTT-0041.nrt2.asianetcom.net [203.192.129.162]
10 318 ms 224 ms 214 ms xg7-3-notemachi-core16.sphere.ad.jp [202.239.114
.121]
11 202 ms 202 ms 200 ms xg1-1-notemachi-core11.sphere.ad.jp [202.239.114
.193]
12 206 ms 206 ms 206 ms 210.165.241.162
13 206 ms 206 ms 206 ms 210.165.249.166
14 204 ms 208 ms 206 ms nas931.p-ibaraki.nttpc.ne.jp [210.165.249.148]
15 210 ms 210 ms 214 ms ip5gw.softether.co.jp [203.196.19.233]
16 212 ms 214 ms 218 ms pv12.softether.com [203.196.19.236]

Trace complete.

tracert 130.158.6.51

Tracing route to public1.softether.com [130.158.6.51]
over a maximum of 30 hops:

1 34 ms 40 ms 34 ms h254.s98.ts.hinet.net [168.95.98.254]
2 35 ms 34 ms 34 ms tp-sc-c6r1.router.hinet.net [168.95.170.46]
3 35 ms 34 ms 44 ms tp-sc-t64-1.router.hinet.net [220.128.5.226]
4 35 ms 34 ms 36 ms TPDT-3012.hinet.net [220.128.2.174]
5 35 ms 34 ms 34 ms r4003-s2.tp.hinet.net [220.128.4.253]
6 34 ms 105 ms 75 ms 220-128-7-217.HINET-IP.hinet.net [220.128.7.217]

7 181 ms 181 ms 181 ms r01-pa.us.hinet.net [211.72.108.225]
8 181 ms 181 ms 181 ms r02-pa.us.hinet.net [202.39.83.5]
9 183 ms 183 ms 183 ms 12.94.42.9
10 185 ms 185 ms 185 ms cr2.sffca.ip.att.net [12.122.114.74]
11 183 ms 185 ms 185 ms cr2.sffca.ip.att.net [12.123.15.249]
12 183 ms 183 ms 183 ms ggr3.sffca.ip.att.net [12.122.136.17]
13 185 ms 185 ms 185 ms att-gw.sanfran.level3.net [192.205.33.82]
14 197 ms 198 ms 197 ms vlan79.csw2.SanJose1.Level3.net [4.68.18.126]
15 189 ms 197 ms 198 ms ae-73-73.ebr3.SanJose1.Level3.net [4.69.134.229]

16 202 ms 198 ms 198 ms ae-2-2.ebr3.LosAngeles1.Level3.net [4.69.132.10]

17 193 ms 193 ms 193 ms ae-3-80.edge5.LosAngeles1.Level3.net [4.69.144.1
39]
18 192 ms 193 ms 193 ms JAPAN-TELEC.edge5.LosAngeles1.Level3.net [4.59.4
8.2]
19 294 ms 294 ms 294 ms tokyo2-dc-RM-P-6-2-0-11.sinet.ad.jp [150.99.203.
61]
20 296 ms 296 ms 296 ms tokyo1-dc-RM-AE-0-11.sinet.ad.jp [150.99.203.13]

21 302 ms 300 ms 300 ms tsukuba-dc-RM-AE-0-11.sinet.ad.jp [150.99.203.9]

22 302 ms 302 ms 302 ms tsukuba-u-10g.gw.sinet.ad.jp [150.99.189.194]
23 302 ms 302 ms 302 ms 130.158.6.42
24 302 ms 302 ms 302 ms public1.softether.com [130.158.6.51]

Trace complete.

贊助商連結


kk_pczone
2010-10-31, 12:42 PM
不同的isp 使用不同的route
很正常