[49988] in North American Network Operators' Group
Re: QoS/CoS in the real world?
daemon@ATHENA.MIT.EDU (Kurt Erik Lindqvist)
Mon Jul 15 09:44:35 2002
Date: Mon, 15 Jul 2002 09:07:48 +0200
From: Kurt Erik Lindqvist <kurtis@kurtis.pp.se>
Reply-To: Kurt Erik Lindqvist <kurtis@kurtis.pp.se>
To: "Stephen J. Wilcox" <steve@opaltelecom.co.uk>, nanog@merit.edu
In-Reply-To: <Pine.LNX.4.21.0207140029480.21460-100000@staff.opaltelecom.net>
Errors-To: owner-nanog-outgoing@merit.edu
> A number of people think QoS was interesting for a while but that its
> never either found its true use or is dead.
>
> There are unresolved questions from a customer point of view as to what
> they are actually going to get, what difference it will make and how they
> can measure their performance and the improvements from QoS.
Having worked for a pretty large, now bankrupt, Netherlands based operator
- where we where looking at QoS what we concluded was that
a) QoS mechanisms are for the local-tail. Backbones should have "enough"
bandwidth (and bandwidth is cheap).
b) QoS was for customers with services like VoIP and VPN - and in most
cases they where needed becuase the end users refused to buy the bandwidth
they actually needed.
c) The QoS implementations in the vendor boxes at best leaves a lot to
whish for and in most cases simply does not work (but to their credit they
where really helpful in working with us on this).
- kurtis -
PS. Notice that I left out the M... word. :)
