[LINK] Survey Finds Support for School Filters (USA)

[Mark Hughes]

The slowness isn't a bandwith thing, its a useage thing.

Get a list of sites back from the search engine.  Click on number one.
Its blocked.  Click on number two.  Its blocked.  Click on number
three - that's ok.  Go to site number three.  Click on a link from
site number three.  Its blocked.  Back to list from the search engine.
Click on number 4.


Regards, Mark

Mark Hughes
Director
Effective Business Applications Pty Ltd
effectivebusiness@pplications.com.au
www.pplications.com.au
+61 4 1374 3959

> -----Original Message-----
> From: owner-link@www.anu.edu.au [mailto:owner-link@www.anu.edu.au]On
> Behalf Of Danny Yee
> Sent: Saturday, 21 October 2000 11:46
> To: stephen loosley
> Cc: Link List
> Subject: Re: [LINK] Survey Finds Support for School Filters (USA)
>
>
> stephen loosley wrote:
> > True, school net-access can sometimes indeed be slow, but
> simple maths shows
> > the normal 100 terminals sucking digital-signals over one
> ISDN line is the problem.
> > Thus, from daily experience, and basic common sense I
> stand by such comments.
>
> I don't really buy the "filtering makes Net access slower" argument
> either, at least for schools/organisations with small
> pipes.  When your
> bottleneck is a shared 56k modem or a 64k ISDN line, a little bit of
> extra CPU use at either end is going to make SFA of a difference to
> the latency.  (Here at the Uni, with a much bigger pipe to
> the outside
> world, pushing everything through a proxy server undoubtedly does
> slow things down, but that's done for cost-saving, not for
> filtering.)
>
> An exception to this, though, would be any kind of filtering that
> generates network traffic of its own (through queries to a remote
> database somewhere).  That could _really_ slow things down
> if it were
> running on the downstream side of the bottleneck.
>
> Danny.
>