PSINet/Cogent Latency

Phil Rosenthal pr at isprime.com
Tue Jul 23 01:54:17 UTC 2002


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 at merit.edu [mailto:owner-nanog at merit.edu] On Behalf Of
Brian
Sent: Monday, July 22, 2002 9:36 PM
To: pr at isprime.com; 'Alex Rubenstein'
Cc: nanog at 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 at isprime.com>
To: "'Alex Rubenstein'" <alex at nac.net>
Cc: <nanog at 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 at merit.edu [mailto:owner-nanog at merit.edu] On Behalf 
> Of Alex Rubenstein
> Sent: Monday, July 22, 2002 8:27 PM
> To: Derek Samford
> Cc: nanog at 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 at nac.net, latency, Al Reuben --
> --    Net Access Corporation, 800-NET-ME-36, http://www.nac.net   --
>
>
>





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