nanog mailing list archives

Re: MTU of the Internet?


From: "Kent W. England" <kwe () geo net>
Date: Thu, 05 Feb 1998 20:38:41 -0800

At 05:45 PM 2/5/98 , Dorian R. Kim wrote:
On Thu, Feb 05, 1998 at 04:47:36PM +0100, Per Gregers Bilse wrote:
FWIW, our router at MAE-East says:

IP packet size distribution (38569M total packets):
   1-32   64   96  128  160  192  224  256  288  320  352  384  416  448
 480
   .000 .400 .046 .016 .018 .012 .008 .009 .011 .012 .006 .007 .005 .004
.004

    512  544  576 1024 1536 2048 2560 3072 3584 4096 4608
   .010 .006 .120 .000 .099 .197 .000 .000 .000 .000 .000

It's been up for some weeks and the sample size is, well, OK.  As
expected, large number at the low end, but I'm not sure what to think

Bug. I believe counters a shifted by one slot from 1024. As you'll note
that that slot is empty.

-dorian


I'll bet that is true, since histograms for the last couple of years have
shown clusters at 40, 512, 576, 1024 and a tiny bit of 1500. Looks like it
hasn't changed much since.

--Kent



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