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发表于 2005-4-5 21:42:57
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这是因为网络互联互的问题 /电信/联通/网通 之间的互联. 呵呵,我还不清楚电信和网通有没有互联,没准从国外扰了一圈回来.
试试 ping 21cn.com 多少秒?
我在家里的ADSL是:
$ ping 21cn.com
PING 21cn.com (61.140.60.83) 56(84) bytes of data.
64 bytes from 21cn.com (61.140.60.83): icmp_seq=1 ttl=246 time=62.2 ms
64 bytes from hk.21cn.com (61.140.60.83): icmp_seq=2 ttl=246 time=60.9 ms
64 bytes from hk.21cn.com (61.140.60.83): icmp_seq=3 ttl=246 time=63.3 ms
64 bytes from 21cn.com (61.140.60.83): icmp_seq=4 ttl=246 time=60.7 ms
64 bytes from f1.21cn.com (61.140.60.83): icmp_seq=5 ttl=246 time=62.0 ms
64 bytes from cd.21cn.com (61.140.60.83): icmp_seq=6 ttl=246 time=61.8 ms
64 bytes from game.21cn.com (61.140.60.83): icmp_seq=7 ttl=246 time=62.9 ms
--- 21cn.com ping statistics ---
28 packets transmitted, 28 received, 0% packet loss, time 27320ms
rtt min/avg/max/mdev = 60.722/64.767/86.683/6.941 ms
从家里的ASDL ping ubuntu.org.cn 是
$ ping ubuntu.org.cn
PING ubuntu.org.cn (211.148.131.7) 56(84) bytes of data.
64 bytes from ubuntu.org.cn (211.148.131.7): icmp_seq=1 ttl=56 time=58.3 ms
64 bytes from ubuntu.org.cn (211.148.131.7): icmp_seq=2 ttl=56 time=56.6 ms
64 bytes from ubuntu.org.cn (211.148.131.7): icmp_seq=3 ttl=56 time=56.8 ms
64 bytes from ubuntu.org.cn (211.148.131.7): icmp_seq=4 ttl=56 time=58.1 ms
64 bytes from ubuntu.org.cn (211.148.131.7): icmp_seq=5 ttl=56 time=58.3 ms
64 bytes from ubuntu.org.cn (211.148.131.7): icmp_seq=6 ttl=56 time=56.4 ms
--- ubuntu.org.cn ping statistics ---
6 packets transmitted, 6 received, 0% packet loss, time 5005ms
rtt min/avg/max/mdev = 56.498/57.471/58.391/0.883 ms
从ubuntu.org.cn上ping是:
$ ping 21cn.com
PING 21cn.com (61.140.60.90) 56(84) bytes of data.
64 bytes from f1.21cn.com (61.140.60.90): icmp_seq=1 ttl=246 time=5.05 ms
64 bytes from f1.21cn.com (61.140.60.90): icmp_seq=2 ttl=246 time=3.71 ms
64 bytes from 21cn.com (61.140.60.90): icmp_seq=3 ttl=246 time=3.59 ms
64 bytes from f1.21cn.com (61.140.60.90): icmp_seq=4 ttl=246 time=4.10 ms
--- 21cn.com ping statistics ---
4 packets transmitted, 4 received, 0% packet loss, time 3003ms
rtt min/avg/max/mdev = 3.593/4.114/5.051/0.574 ms |
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