Re: [nsp] Traceroute Trick ? ? ?

From: German Martinez (gmartine@mafalda.opentransit.net)
Date: Sat Apr 06 2002 - 23:45:55 EST

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Hi,

On Sat, 6 Apr 2002 sthaug@nethelp.no wrote:

> > When i do traceroute to yahoo.com from router on hop 12
> > i am getting 3IP for the same hop.I am unable to understand
> > this. Can anybody tell which technolodgy is this ? ? ?
> >
> > 11 ge-1-3-0.msr2.pao.yahoo.com (216.115.100.146) 348 msec
> > 348 msec *
> > 12 vl10.bas1.scd.yahoo.com (66.218.64.134) 360 msec
> > vl11.bas2.scd.yahoo.com (66.218.64.138) 424 msec
> > vl10.bas1.scd.yahoo.com (66.218.64.134) 360 msec
> > 13 yahoo.com (66.218.71.113) 460 msec 380 msec 400 msec
>
> Equal cost load balancing. Three links with the same cost (and probably

Two links. Three UDP probes. First and third one take the
vl10.bas1.scd.yahoo.com. Second one takes vl11.bas2.scd.yahoo.com

> the same bandwidth). Nothing magic about it.
>
> Steinar Haug, Nethelp consulting, sthaug@nethelp.no
>

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