On Sat, 4 Dec 2004, Kevin Valentine wrote:

> Hi,
>
> I've successfully tried LTSP 3 and 4.0 in the past.  Now I've started using
> LTSP 4.1 for my small office network and I'm having configuration problems
> with my nic.
>
> The thin clients I got from Diskless Workstations autonegotiate at 100 MB/s,
> full-duplex.  The same is true for the terminal server.  The main machines I'm
> concerned with are my Compaq Deskpro 4000s with the tlan integrated nics.  I
> would like to force them into using 10 Mb/s and full-duplex mode.  Add this
> this to my dhcpd.conf file for each host didn't work:
>       option option-128 e4:45:74:68:00:00;
>       option option-129 "ether=11,1000,0x0C,eth0";
>
> I've used this method with the older versions of the LTSP package and I recall
> things working fine, even with the stock kernel.  Now, only one boots in
> full-duplex while three others boot in half-duplex.
> > From my observations, the side-effect of not matching the duplex
> settings to that of the server is you get a really, really slow interface.

The problem is, the parameters that you passed to the kernel only work
for a monolithic kernel, where the NIC drivers are statically linked to
the kernel.

Since LTSP-3, we've been using a modular kernel, where the NIC drivers
are built as modules, and loaded once the pci bus has been scanned, and
it is determined what type of NIC it is.

It is possible to pass parameters to the module nic, by setting
something like this:

   option option-129  "NICOPT=xxxxxx"

where 'xxxxxx' is the parameter that is recognized by the nic module.
You can see the available module options by running 'modinfo tlan'.
Probably   "duplex:2 speed:10"  would do the trick, but you'll have to
give it a try.

Please report back whether it works or not.  This might be interesting
info for others.


Jim McQuillan
[EMAIL PROTECTED]





>
> Any suggestions on how to force the duplex settings on my tlan cards?  Also,
> why don't the tlan nics autonegotiate properly?  Could there be something
> wrong with my network?
>
>
> Best regards,
> Kevin Valentine
>
>
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