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

  • From: John Fraizer
  • Date: Mon Jan 31 08:22:49 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




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