[K12OSN] A question about gigabit
Les Mikesell
les at futuresource.com
Fri Sep 3 17:21:43 UTC 2004
Before doing that, I'd run cacti or one of the other bandwidth graphing
utilities for a while to see if you were even close to overloading
a single port. I'd guess that you can't fill a single gig pipe
and the overhead of bonding would make things worse instead of
better (but you'd get failover for a bad wire or NIC, about the
least likely part to break).
---
Les Mikesell
les at futuresource.com
On Fri, 2004-09-03 at 12:00, Huck wrote:
> So if you bond 2 gig nics and put them into the 2 gig uplink ports...you
> get LOTS of speed?
>
> --Huck
>
>
> 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
> >(207)923-3100
> >
> >
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> >
> >
> >
> >
>
>
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