Friday, November 16, 2007

traceroute

This is a little technical for our travel blog, but I can't resist
sharing it. One of the ways to check how far it is between two points
on the internet is using a tool called "traceroute", which shows the
address of each piece of intervening equipment, and the connection delay
between them in milliseconds. I ran a traceroute between my machine
here at the RELUFA office in Yaounde and the homepage of the San
Francisco Chronicle, at www.sfgate.com.

We are seventeen "hops" away. Our connection into the US travels via London, then directly to San
Francisco.


Here, for the curious and the idle, are the details:

1 192.168.2.1 (192.168.2.1) 48 bytes to 192.168.2.105 0.769 ms 1.051
ms 0.742 ms


2 196.202.233.129 (196.202.233.129) 36 bytes to 192.168.2.105 602.509
ms 834.113 ms 901.717 ms


3 * 41.205.0.166 (41.205.0.166) 36 bytes to 192.168.2.105 431.651 ms
264.352 ms


4 1.1.1.1 (1.1.1.1) 36 bytes to 192.168.2.105 297.849 ms 26.456 ms
21.996 ms


5 41.205.0.173 (41.205.0.173) 36 bytes to 192.168.2.105 18.995 ms
422.565 ms 405.994 ms


6 41.205.0.254 (41.205.0.254) 36 bytes to 192.168.2.105 432.556 ms
195.717 ms 207.761 ms


7 mtnh-cr-1.cm--mtnh-ha-1.cm-a.mtnns.net (41.205.0.136) 36 bytes to
192.168.2.105 206.719 ms 65.955 ms 59.107 ms


8 lt-tpr-1--lt-cr-1-a.uk.mtnns.net (209.212.111.129) 36 bytes to
192.168.2.105 172.710 ms 414.449 ms 297.375 ms


9 339.ge-1-3-2.mpr1.lhr2.uk.above.net (213.152.230.89) 36 bytes to
192.168.2.105 604.295 ms 1009.808 ms 695.434 ms


10 bcr1-ge-4-3-0.Londonlnx.savvis.net (195.66.224.39) 36 bytes to
192.168.2.105 828.730 ms 362.685 ms 406.018 ms


11 bcs1-so-1-1-0.Londonlnx.savvis.net (204.70.193.114) 36 bytes to
192.168.2.105 306.025 ms bcs2-so-1-1-0.Londonlnx.savvis.net
(204.70.193.122) 36 bytes to 192.168.2.105 261.333 ms
bcs1-so-1-1-0.Londonlnx.savvis.net (204.70.193.114) 36 bytes to
192.168.2.105 405.917 ms


12 cr1-pos-0-0-3-0.londonuk1.savvis.net (204.70.192.5) 36 bytes to
192.168.2.105 268.341 ms cr2-pos-0-0-3-0.londonuk1.savvis.net
(204.70.192.9) 36 bytes to 192.168.2.105 274.809 ms *


13 cr2-pos-0-0-3-3.SanFrancisco.savvis.net (208.172.147.93) 36 bytes to
192.168.2.105 346.593 ms 426.430 ms *


14 bhr1-pos-0-0.SantaClarasc8.savvis.net (208.172.156.198) 36 bytes to
192.168.2.105 345.132 ms 366.359 ms 352.968 ms


15 csr12-ve243.santaclarasc8.savvis.net (66.35.194.107) 36 bytes to
192.168.2.105 334.539 ms 392.888 ms 350.002 ms


16 66.35.204.163 (66.35.204.163) 36 bytes to 192.168.2.105 341.045 ms
!A * *


17 66.35.204.163 (66.35.204.163) 36 bytes to 192.168.2.105 358.218 ms
!A 353.438 ms !A *

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