[127427] in North American Network Operators' Group
RE: Broadband initiatives - impact to your network?
daemon@ATHENA.MIT.EDU (Brandon Kim)
Mon Jun 28 20:21:41 2010
From: Brandon Kim <brandon.kim@brandontek.com>
To: <gbonser@seven.com>
Date: Mon, 28 Jun 2010 20:21:27 -0400
In-Reply-To: <5A6D953473350C4B9995546AFE9939EE09EA4EB0@RWC-EX1.corp.seven.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
> That is when conversations bearing sounds like mpscp and uftp begin and
> then someone says "aw=2C screw it=2C just send them a disk".
LOL!!!!
> Subject: RE: Broadband initiatives - impact to your network?
> Date: Mon=2C 28 Jun 2010 16:46:37 -0700
> From: gbonser@seven.com
> To: jf@feldman.org=3B randy@psg.com
> CC: nanog@nanog.org
>=20
>=20
>=20
> > -----Original Message-----
> > From: Jonathan Feldman=20
> > Sent: Monday=2C June 28=2C 2010 4:14 PM
> > To: Randy Bush
> > Cc: nanog@nanog.org
> > Subject: Re: Broadband initiatives - impact to your network?
> >=20
> > I've never claimed to be particularly bright=2C but I do like to
> > challenge assumptions.
>=20
> It isn't only the amount of bandwidth available but also in many cases
> the protocols used to transmit the data. It takes smarter than the
> average bear to figure out how to get data across a fat pipe over a long
> distance at a high rate. TCP protocols are limited by the number of
> packets allowed to be "in flight" according to how the stack is
> configured. One might need to go to unorthodox or rather new methods to
> use all the available bandwidth.
>=20
> There are many cases of someone being stymied as to why they can't even
> get anywhere near 10 megabits of throughput on a GigE path from Los
> Angeles to London using FTP=2C for example. In many cases the
> responsibility of getting data from point A to point B is handled by
> people who don't bring their network operators into the discussion where
> problems like this can be pointed out to them. Often the first time the
> enterprise network group hears about it is when someone complains that
> the "fast pipe" to $continent is "slow" and therefore must be broken and
> that is generally followed by the demand that it be fixed immediately if
> that demand is not included in the first email.=20
>=20
> That is when conversations bearing sounds like mpscp and uftp begin and
> then someone says "aw=2C screw it=2C just send them a disk".
>=20
> George
>=20
>=20
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