[25474] in North American Network Operators' Group
Re: IP-Internets
daemon@ATHENA.MIT.EDU (Tim Salo)
Thu Oct 14 14:50:24 1999
Date: Thu, 14 Oct 1999 13:24:33 -0500 (CDT)
From: Tim Salo <salo@networkcs.com>
Message-Id: <199910141824.NAA32572@us.networkcs.com>
To: nanog@merit.edu
In-Reply-To: <Pine.SOL.4.10.9910141036400.25287-100000@aura.research.bell-labs.com>
Errors-To: owner-nanog-outgoing@merit.edu
> Date: Thu, 14 Oct 1999 11:02:04 -0400 (EDT)
> From: Bulent Yener <yener@research.bell-labs.com>
> Subject: IP-Internets
> [...]
> 2- how commonly is IP over ATM used?
From the ATM Forum Board of Directors Report - Rome, Italy, April 23,1999:
... Fred [Baker, chair of the IETF] stated that 75% of all Internet traffic
today touches an ATM device and acknowledged the importance of the role
of ATM in providing traffic engineering in today's networks. ...
I don't really know where this number comes from nor whether it is
really true.
A number of facilities-based carriers are either migrating or talking
about migrating from ATM to some sort of IP-over-fiber solution. I
believe that the economics of ATM versus IP-over-fiber solutions are
tremendously different for those who own fiber compared to those who
don't own the fiber.
> Do network operators really care about the cell-tax?
> [...]
Define "care". Certainly, one sees a lot of whining about the ATM
"cell tax". On the other hand, if Fred Baker is correct, ATM is heavily
used in the Internet. Having said that, I believe that any ISP that
selects a service on the basis of some sort of overhead measurement, rather
than an evaluation of cost versus performance, is confused.
-tjs
