北京联通,还好:
$ ping
github.comPING
github.com (192.30.253.112): 56 data bytes
64 bytes from 192.30.253.112: icmp_seq=0 ttl=44 time=317 ms
64 bytes from 192.30.253.112: icmp_seq=1 ttl=44 time=249 ms
64 bytes from 192.30.253.112: icmp_seq=2 ttl=44 time=246 ms
64 bytes from 192.30.253.112: icmp_seq=3 ttl=44 time=248 ms
64 bytes from 192.30.253.112: icmp_seq=4 ttl=44 time=247 ms
64 bytes from 192.30.253.112: icmp_seq=5 ttl=44 time=247 ms
64 bytes from 192.30.253.112: icmp_seq=6 ttl=44 time=247 ms
64 bytes from 192.30.253.112: icmp_seq=7 ttl=44 time=246 ms
64 bytes from 192.30.253.112: icmp_seq=8 ttl=44 time=249 ms
64 bytes from 192.30.253.112: icmp_seq=9 ttl=44 time=247 ms
64 bytes from 192.30.253.112: icmp_seq=10 ttl=44 time=247 ms
64 bytes from 192.30.253.112: icmp_seq=11 ttl=44 time=246 ms
64 bytes from 192.30.253.112: icmp_seq=12 ttl=44 time=247 ms
64 bytes from 192.30.253.112: icmp_seq=13 ttl=44 time=246 ms
64 bytes from 192.30.253.112: icmp_seq=14 ttl=44 time=247 ms
64 bytes from 192.30.253.112: icmp_seq=15 ttl=44 time=246 ms
64 bytes from 192.30.253.112: icmp_seq=16 ttl=44 time=247 ms
64 bytes from 192.30.253.112: icmp_seq=17 ttl=44 time=246 ms
64 bytes from 192.30.253.112: icmp_seq=18 ttl=44 time=245 ms
64 bytes from 192.30.253.112: icmp_seq=19 ttl=44 time=248 ms
64 bytes from 192.30.253.112: icmp_seq=20 ttl=44 time=248 ms
64 bytes from 192.30.253.112: icmp_seq=21 ttl=44 time=247 ms
64 bytes from 192.30.253.112: icmp_seq=22 ttl=44 time=246 ms
64 bytes from 192.30.253.112: icmp_seq=23 ttl=44 time=247 ms
64 bytes from 192.30.253.112: icmp_seq=24 ttl=44 time=264 ms
64 bytes from 192.30.253.112: icmp_seq=25 ttl=44 time=245 ms
64 bytes from 192.30.253.112: icmp_seq=26 ttl=44 time=246 ms
64 bytes from 192.30.253.112: icmp_seq=27 ttl=44 time=246 ms
64 bytes from 192.30.253.112: icmp_seq=28 ttl=44 time=247 ms
64 bytes from 192.30.253.112: icmp_seq=29 ttl=44 time=246 ms
----
github.com PING Statistics----
30 packets transmitted, 30 packets received, 0.0% packet loss
round-trip (ms) min/avg/max/med = 245/250/317/247
很奇怪的是马上 ping
www.github.com 却有一次不通:
$ ping
www.github.comPING
github.com (192.30.253.113): 56 data bytes
----
github.com PING Statistics----
22 packets transmitted, 0 packets received, 100.0% packet loss
马上再平第二次又没事了:
$ ping
www.github.comPING
github.com (192.30.253.112): 56 data bytes
64 bytes from 192.30.253.112: icmp_seq=0 ttl=44 time=248 ms
64 bytes from 192.30.253.112: icmp_seq=1 ttl=44 time=249 ms
64 bytes from 192.30.253.112: icmp_seq=2 ttl=44 time=247 ms
64 bytes from 192.30.253.112: icmp_seq=3 ttl=44 time=247 ms
64 bytes from 192.30.253.112: icmp_seq=4 ttl=44 time=248 ms
64 bytes from 192.30.253.112: icmp_seq=5 ttl=44 time=247 ms
64 bytes from 192.30.253.112: icmp_seq=6 ttl=44 time=246 ms
64 bytes from 192.30.253.112: icmp_seq=7 ttl=44 time=247 ms
64 bytes from 192.30.253.112: icmp_seq=8 ttl=44 time=247 ms
64 bytes from 192.30.253.112: icmp_seq=9 ttl=44 time=246 ms
64 bytes from 192.30.253.112: icmp_seq=10 ttl=44 time=247 ms
64 bytes from 192.30.253.112: icmp_seq=11 ttl=44 time=246 ms
64 bytes from 192.30.253.112: icmp_seq=12 ttl=44 time=247 ms
64 bytes from 192.30.253.112: icmp_seq=13 ttl=44 time=249 ms
64 bytes from 192.30.253.112: icmp_seq=14 ttl=44 time=246 ms
64 bytes from 192.30.253.112: icmp_seq=15 ttl=44 time=246 ms
----
github.com PING Statistics----
16 packets transmitted, 16 packets received, 0.0% packet loss
round-trip (ms) min/avg/max/med = 246/247/249/247