nanog mailing list archives

Re: T3 Latency


From: Charles Scott <cscott () gaslightmedia com>
Date: Sat, 17 Feb 2001 11:19:29 -0500 (EST)



On Sat, 17 Feb 2001, Wayne Bouchard wrote:

Or, perhaps a more simplified and easily remembered figure...

RTT on a straight line run from sfo to dc would be ~63ms. (Seems to be
roughly 100 to 120 for most real circuits.)

We all know, however, that telcos rarely use straight lines. Still, I
would not expect more than 6 to 7ms. Perhaps your telcos equipment,
through some fluke, has you operating on the backup path?


Wayne:
  Now there's a thought that didn't occur to me. They may be running me
all over creation for some reason rather than taking some more direct
route. Perhaps they ran out of somthing here in Michigan and had to run it
down to Texas and back to get it connected correctly. I think I'll have
them inventory the path and let me know what it is.

Thanks to all the responses on this.

Chuck Scott





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