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mtr

Posted on 2008-06-22
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Last Modified: 2010-03-18
Hello,

I had a quick questions regarding mtr. Below is a sample mtr to an IP 65.55.55.128

Host                                Loss%   Snt   Last   Avg  Best  Wrst StDev
 1. 192.168.1.1         0.0%   971    0.6   0.5   0.4  17.1   1.0
 2. 172.16.10.1         0.0%   971    0.5   0.4   0.3   7.5   0.5
    172.16.20.1
 3. 65.55.55.128        0.0%   971    0.5   0.4   0.3   8.5   0.5

Would you happen to know why there are two entries for hop 2? Thanks.
 
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Question by:ShadowColossus
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Kamran Arshad earned 250 total points
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Hi,

You are not tracing the path of one packet, but of many. Hopefully, all those packets will follow the same route, but this is by no means assured. What if a link fails during the traceroute? Your packets may be rerouted, and traceroute's output becomes a confused combination of two separate routes.

This has happened in your case. You may study the below article for details:

http://www.freesoft.org/CIE/Topics/54.htm
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by:ShadowColossus
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thanks for your help :)
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