[Server-devel] Fwd: Network Provisioning

[Aaron Huslage]

Typical PC hardware of the current generation can more than saturate a 1gb
link. From what I've seen on this list, most people have deployed hardware
that is certainly capable of servicing 750-1000 clients if the OS and apps
are properly tuned.

Of course if you're going to be servicing that many wireless clients, you'll
want a higher-end VAN-able WLAN setup. That'll REALLY blow the budget. :)

On Thu, Apr 24, 2008 at 8:22 PM, John Watlington <wad at laptop.org> wrote:

>
> On Apr 24, 2008, at 10:57 PM, Martin Langhoff wrote:
>
> > On Fri, Apr 25, 2008 at 2:38 PM, John Watlington
> > <wad at media.mit.edu> wrote:
> >>
> >>  Proposed change to the hardware spec:
> >>
> >>  From one to four access points may use an simpler switch,
> >>  connected to the server over a 100 Mb/s link.   From five to seven
> >>  access points will need a better switch, which provides a 1 GB/s
> >>  link to the server.
> >>
> >>  This means that a 1 GB/s interface should be specified for the
> >> servers.
> >
> > Theoretically, yes... but perhaps this is a bit over the top. For the
> > space we are aiming...
> >
> >  - the XS services will bottleneck well before saturating 1Gb/s
> > traffic
> >  - 'upstream' services that the XS is routing will bottleneck well
> > before 1Gb/s
> >
> > if we see a 7-AP setup, it will be there to support either a large
> > number of laptops or a location with obstacles that needs many
> > antennaes. In any case, it will support laptops mostly peering w
> > each other.
>
> Wrong.   Right now all collaboration moves through the ejabberd server.
> We hope to change that, but it won't happen for roughly a year.
>
> > If we are designing for a "client base" of laptops that we actually
> > expect to saturate 1Gb, then... we need to start recommending a
> > mid-range server cluster, perhaps a SAN, all costing a few megabucks
> > ;-)
>
> But a school of 250 students will need at least five access points.
> It only takes two laptops to saturate a channel (OK, maybe one).
> So you are saying that squid or apache can't keep up with feeding
> ten streams at 11+ Mb/s each ?
>
> wad
>
>
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>



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