[e2e] Re: crippled Internet

Fred Baker fred at cisco.com
Tue Apr 24 13:27:53 PDT 2001

At 10:54 PM 4/23/2001 -0400, David P. Reed wrote:
>Adequate provisioning goes a long way to fixing QoS, and ...  Neither is 

That's not proven either. If you talk with the Tier 1's, they'll tell you 
that bandwidth is the answer, and that they have deployed it copiously 
within and between their networks. Many of the larger North American edge 
networks make the same comment. But for simple bandwidth to result in 
guaranteeable QoS, one has to have significantly more bandwidth than 
required, on the order of 50% utilization at the busiest moment in the day. 
That is a huge investment.

I will argue that making the kinds of guarantees that voice calls for, and 
numerous other applications, and remaining cost-effective for anyone who 
doesn't view bandwidth as an end in itself, winds up requiring a lot more 
than bandwidth, and you're correct that only about 1/3 of edge networks 
report using that internally, and only a few ISPs offer that as a service.

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