Re: types of traffic in tcp congest control

["Anumita Biswas" <[e-mail]>]

Can the arguments about disk drives, memory capacity be really extended
to core, highly shared Internet links? Has the provisioning of core
links ever exceeded the rate at which the number of internet users are
increasing. 

Also, should we not also consider the "bandwidth" of the core
routers/switches, that is the rate at which their ability to
route/switch packets is increasing versus the rate at which they are
pumped with packets? Can that ability be overprovisioned quickly
enough?

Please revert back, if I have misunderstood.

thanks
Anumita.
>>> Joe Touch <[e-mail]> 05/15/02 11:18AM >>>


Anumita Biswas wrote:
> Is it not true that overprovisioning is never a long term solution,
as
> bandwidth is never ever enough? As Alan says, "Usage expands to fit
> network bandwidth".

If you have a DSL line, track its usage. You will find that ~1Mbps is 
more than sufficient most of the time.

Yes, applications sometimes catch up. However, whenever a resource is 
scarce the assumption is that usage will always catch up. The arguments

held in the past for disk drives, memory capacity, and CPU speed. Most

are, for most purposes, overprovisioned very easily for all but a small

fraction of the time for most users.

Joe