[K12OSN] A question about gigabit

Huck dhuckaby at paasda.org
Fri Sep 3 17:00:58 UTC 2004

So if you bond 2 gig nics and put them into the 2 gig uplink ports...you 
get LOTS of speed?


David Trask wrote:

>"Support list for opensource software in schools." <k12osn at redhat.com> on
>Monday, August 30, 2004 at 10:36 AM +0000 wrote:
>>Hello all,
>>   I've seen the recommendation for gigabit NICs in the K12LTSP server 
>>a number of times on this list and I have a question regarding that.  
>>Currently I have 10/100Mb switches in place, and when I set up my shiny 
>>new terminal server, I used only one NIC and just tied it into my 
>>existing network so that it can be accessed from anywhere on the LAN.  
>>So, here's my question:  With everything else on my LAN being 10/100 
>>would gigabit help me at all.  I could buy a new gigabit switch and 
>>connect the server to it and it to the rest of my network, but it seems 
>>to me that I would just be moving the bottleneck up the stream a few 
>>inches.  Is my thinking correct, or would a gigabit switch, even if it's 
>>the only one on the network, be advantageous?  I welcome any thoughts on 
>>the subject.
>Liken it to this....if you have 25 kids in a room that need to go out to
>the hall and into 25 different classrooms...through a standard
>door...they'll do so, but they can only get out so fast.  Now take the
>same scenario yet let them out through a garage door.  Now the bottleneck
>shifts from the original classroom down to the other 25 rooms.  In terms
>of servers....if you come out gigabit and go into a switch at
>gigabit...now the bottleneck has shifted down to the terminal...and the
>difference is huge!  For instance...prior to gigabit...if 5 kids tried
>playing tux type....by the 6th kid...it was crawling almost ot the point
>of unplayable.  Now with the exact same server (all I did was put in an
>SR24G2...24 ports of 10/100 and 2 ports of 10/100/1000 for uplink) and
>holy cow!  The entire lab can play with no noticeable slowdown. 
>OpenOffice pops right up..and so forth.  The SR24G2 from Amer.com (don't
>go by the prices on the web page....email Michelle   mboers at amer.com) 
>it's only $179.  Good price for what you get.
>David N. Trask
>Technology Teacher/Coordinator
>Vassalboro Community School
>dtrask at vcs.u52.k12.me.us
>K12OSN mailing list
>K12OSN at redhat.com
>For more info see <http://www.k12os.org>

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