Rapidly-variable routing on the time scale of seconds to minutes?

Mon Jan 31 13:21:25 UTC 2005

Charles Shen wrote:
> An example traceroute record containing the fluttering is shown below (see
> the 5th hop)
> 
>  Fri Apr 09 09:35:35 2004
> 
>  1  cisfhfb.fh-friedberg.de (212.201.24.1)  1.095 ms  0.402 ms  0.321 ms
>  2  ar-frankfurt2.g-win.dfn.de (188.1.42.9)  120.105 ms  198.766 ms  200.040
> ms
>  3  cr-frankfurt1-ge5-0.g-win.dfn.de (188.1.80.1)  2.093 ms  2.142 ms  2.087
> ms
>  4  so-6-0-0.ar2.FRA2.gblx.net (208.48.23.141)  2.461 ms  2.349 ms  2.333 ms
>  5  pos5-0-2488M.cr2.FRA2.gblx.net (67.17.65.53)  2.448 ms
> pos6-0-2488M.cr1.FRA2.gblx.net (67.17.65.77)  2.368 ms  2.281 ms

That sure looks like ECM to me.  Equal Cost Multi-Path.  This is NOT 
anything new.  What's the big deal?

>  6  so3-0-0-2488M.ar2.FRA3.gblx.net (67.17.65.82)  2.676 ms  2.750 ms
> so2-0-0-2488M.ar2.FRA3.gblx.net (67.17.65.58)  2.569 ms

Same here.

--
John Fraizer