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Re: QOS or more bandwidth
From: "Stephen J. Wilcox" <steve () opaltelecom co uk>
Date: Tue, 29 May 2001 15:13:33 +0100 (BST)


Altho you need to have different policies for your core and for your
customers.. it may be practical to increase bandwidth on the core and
avoid QoS (which imho should never be employed on the core).. but its
not always within a customers budget to upgrade from low speed circuits.

Although I generally agree, how does one keep QoS out of the core for CBR
and jitter-sensitive applications?

I would disagree and argue that your core needs to be running top of the
range routers with fat pipes with spare bandwidth, for a large network if
you run out of CPU or bandwidth your routers will simply fall over.

If you have sufficient bandwidth and your routers are running smoothly
then there is no use for QoS hence I wouldnt use it (plus it will slow
down the routing process).

I think as the prices drop, smaller businesses are coming online but
still trying to use high bandwidth applications. As they are unable to

Many here must continually explain on other lists that speed and volume
are totally different games.  "High-speed" access != "high volume for
below cost".  Ughh.  (If I wire my house with a 400A main, and insist
on running 30kW all the time, I'm going to get a biiig electric bill...)

Exactly! If you continue to increase the requirements with growing
bandwidths you have no net gain. (A lot like each new release of Windows
has more features to take advantage of faster CPUs that means they always
remain slow!)

Steve



Eddy

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Date: Mon, 21 May 2001 11:23:58 +0000 (GMT)
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