[K12OSN] Excessive collisions cripple network -- Suggestions for solutions?

[Les Mikesell]

Terrell Prudé Jr. wrote:
> I guess it depends on what you're looking for.  If you're looking for
> just *one* switch, specifically for a K12LTSP lab, then you can go with
> pretty much any of the managed switches below.
> 
> On the other hand, it sounds from your initial email like your site has
> a "cobbled-together" network infrastructure consisting of CompUSA-grade
> mini-switch devices.  If I were you, I'd be looking at a wholesale
> upgrade of the wiring closets.  That's what we did in my district.  We
> got rid of all the Synoptic LattisHubs and other substandard gear like
> that and put in some decent gear.  We have emphatically not regretted it.
> 
> Catalyst switches are definitely good stuff, though they are definitely
> expensive...if you buy them new.  If I were you, I'd get on eBay and
> have a look for the Catalyst 3550, the 48-port version, and make sure
> you get the two GBICs along with it.  They very often can be had for
> less than US $1,000.
> 
> I used to recommend Amer.com's SR48G2i (US $995).  Unfortunately, not
> only do they not make that model anymore, but I've also found that the
> company is somewhat less than trustworthy.  They made promises to us
> that, once they thought they had our money, they demonstrated no
> willingness to keep.
> 

Dell sells some moderately-priced managed switches.

-- 
   Les Mikesell
    les at futuresource.com