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mtr

Posted on 2008-06-22
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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 1000 total points
ID: 21844595
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
ID: 21878394
thanks for your help :)
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