Why 160ms to ping <5miles

acidzombie24 asked:

My server is sunnyvale, CA. 2 (64.71.128.221) goes to Cupertino which is close but away from mountain view. The destination is mountain view. It takes 160ms to ping there. I can ping the other side of the north american coast from my server in less then half the time than something <5miles. Whats going on?

traceroute to google.com (74.125.128.139), 30 hops max, 60 byte packets
 1 [edited out]
 2  gige-g4-4.core1.sjc1.he.net (64.71.128.221)  0.693 ms  0.733 ms  0.814 ms
 3  10gigabitethernet2-1.core1.sjc2.he.net (72.52.92.118)  0.933 ms  5.998 ms  6.020 ms
 4  72.14.219.161 (72.14.219.161)  1.221 ms  1.222 ms  1.208 ms
 5  216.239.49.168 (216.239.49.168)  1.678 ms 216.239.49.170 (216.239.49.170)  22.631 ms  22.543 ms
 6  209.85.250.66 (209.85.250.66)  2.464 ms  1.678 ms 209.85.250.64 (209.85.250.64)  2.040 ms
 7  216.239.49.198 (216.239.49.198)  21.069 ms  21.023 ms  21.012 ms
 8  72.14.238.131 (72.14.238.131)  21.015 ms  21.161 ms 72.14.239.247 (72.14.239.247)  41.834 ms
 9  209.85.250.228 (209.85.250.228)  128.772 ms  110.484 ms  110.520 ms
10  66.249.94.122 (66.249.94.122)  162.278 ms  159.598 ms  159.559 ms
11  209.85.253.69 (209.85.253.69)  156.989 ms 209.85.253.71 (209.85.253.71)  160.192 ms  157.118 ms
12  * * *
13  hg-in-f139.1e100.net (74.125.128.139)  163.889 ms  162.617 ms  163.331 ms

My answer:


I was joking when I commented that for all we know, your traffic is going to Hong Kong, but it appears that it actually is going to Hong Kong.

Several online traceroute tools based in Hong Kong show that IP address to be within a very few milliseconds of their locations.

Now, as to why your traffic is being routed to Google’s Hong Kong datacenter… Since it’s being diverted after it enters Google’s network, something is probably misconfigured within Google, or they’re routing around an outage.


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