nanog mailing list archives

RE: PSINet/Cogent Latency


From: "Phil Rosenthal" <pr () isprime com>
Date: Mon, 22 Jul 2002 21:54:17 -0400


I call any upstream link 'over capacity' if either:
1) There is less than 50mb/s unused
2) The circuit is more than 50% in use

I guess by my definition a DS3 is always 'over capacity'

--Phil

-----Original Message-----
From: owner-nanog () merit edu [mailto:owner-nanog () merit edu] On Behalf Of
Brian
Sent: Monday, July 22, 2002 9:36 PM
To: pr () isprime com; 'Alex Rubenstein'
Cc: nanog () merit edu
Subject: Re: PSINet/Cogent Latency



bwahaha, 2 funnee.  I gotta think most people would be thinking of
adding another ds3 at that point.

    Bri

----- Original Message -----
From: "Phil Rosenthal" <pr () isprime com>
To: "'Alex Rubenstein'" <alex () nac net>
Cc: <nanog () merit edu>
Sent: Monday, July 22, 2002 6:05 PM
Subject: RE: PSINet/Cogent Latency



40mb/s isn't "loaded" for a DS3?

--Phil

-----Original Message-----
From: owner-nanog () merit edu [mailto:owner-nanog () merit edu] On Behalf 
Of Alex Rubenstein
Sent: Monday, July 22, 2002 8:27 PM
To: Derek Samford
Cc: nanog () merit edu
Subject: Re: PSINet/Cogent Latency




Yes, it's horrid. I've been peering with PSI for going on three years,

and it's never been as bad as it is now.

oddly enough, we see 30+ msec across a DS3 to them, which isn't that 
loaded (35 to 40 mb/s).

Then, behind whatever we peer with, we see over 400 msec, with 50% 
loss, during business hours.



On Mon, 22 Jul 2002, Derek Samford wrote:


There was some mail being tossed around earlier about Cogent
having
latency. I'm actually seeing this on PSINet (Now owned by
Cogent.) Is anyone else still seeing the latency they were 
experiencing earlier?

Derek


-- Alex Rubenstein, AR97, K2AHR, alex () nac net, latency, Al Reuben --
--    Net Access Corporation, 800-NET-ME-36, http://www.nac.net   --






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