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Re: looping traceroutes
From: Ratul Mahajan <ratul () cs washington edu>
Date: Wed, 19 Sep 2001 00:40:51 -0700 (PDT)




 >27  208.63.128.3 (208.63.128.3)  111.475 ms  69.670 ms  69.267 ms
 >28  208.63.128.1 (208.63.128.1)  68.883 ms  67.147 ms  72.106 ms
 >29  208.63.128.3 (208.63.128.3)  69.842 ms  67.889 ms  66.944 ms
 >30  208.63.128.1 (208.63.128.1)  70.986 ms  73.124 ms  68.452 ms

This looks exactly like a routing loop to me.  Why do you think it is not a 
routing loop?

I was assuming that any routing loop in the system would be transient, but
this one is not (the traceroute is still showing the same behavior). The
extent to which I see this also makes me think that there is something
else going on.

Do you think that it can be a real persistent routing loop (data packets
would actually shuttle between the two interfaces) as against some
wierdness because of traceroute?

        thanks,
        -- ratul


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