RE: [K12OSN] why 2 netcards on the LTS?

["james" <james mail nbsd org>]

There are three reasons for it I can think of.

1) You might be running another DHCP server.  We are (A MS one :/).  Now
what happens if your thin client picks up that one for its DHCP?  It
will get an IP and then just SIT THERE doing nothing, more than likely
(I guess you could set the non-LTS DHCP server to say where to get the
the appropriate files or refuse too talk to it, but maintaining that
could be a chore).  By putting the thin clients on their own private
LAN, where they can only talk to your LTS' DHCP server, you remove that
issue.

Now if all were right in the universe, we would have had 100% foresight
when we were implementing our Ethernet networks 8 or more years ago.
Unfortunately sometimes we are limited in that regard and now it would
be too costly (Mostly time-wise) to change everything (Especially if it
is 'just' for LTS).

2) Network traffic.  The thin clients are basically being told over the
network everything they are rendering on the screen.  Now for one thin
client that might not be bad.  Add 8, 12 or 30 or something and well
that could get a bit bad for some people on 10 Megabit only networks.
Then add traffic from use (People using the web etc).

3) Now take #2 and it could also be bad for networks where there is
already some congestion or potential for it.  We have at least 275
Windows workstations in labs in one building, plus computers on peoples
desks.  They are usually in some kind of use (using the web, email,
doing "whatever").  Why start pushing potential limits?

- James

> -----Original Message-----
> From: k12osn-admin redhat com 
> [mailto:k12osn-admin redhat com] On Behalf Of morten
> Sent: Wednesday, March 06, 2002 12:58 PM
> To: k12osn redhat com
> Subject: [K12OSN] why 2 netcards on the LTS?
> 
> 
> Its the first week working with Linux. I find it a fantastic 
> system. My main task this year is to help about 40 schools in 
> DK to implemenet LTS at the school. Some of the schools has 
> up to 160 clients.
> 
> My question is:
> I do not understand the reason for 2 netcards in the server. 
> "one for a private network on a hub with terminals" and one 
> for the "rest of the network" Does it mean that the thin 
> klient will work on both cards. Is it only a security reason 
> that there are 2 netcard. Is it then possible to conect all 
> the teacher to one netcard and the stundet to the other, so 
> the teachers can comunicate and get into the schoools net and 
> prevent the stundets from going in to the "private net" (the 
> schools administrative net). Will someone give me a simple 
> explination on this in a simple language.
> 
> I have already set up a LTS working with 10 clinets as a test 
> and it works fine, but now i would like to try the K12LTSP version.
> 
> Thank to a fantastic project and support
> 
> 
> 
> 
> 
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