A.P. Lawrence

speed of 10/100 mb nic

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From: Jeff Liebermann <jeffl@comix.santa-cruz.ca.us>
Subject: Re: changing speed of network card
Date: Mon, 20 Aug 2001 00:41:06 -0700 References: <983dea81.0108140555.51a6c87b@posting.google.com> <cnbintofkba1744h3m1it98g20fmpsos8m@4ax.com> <983dea81.0108140856.576cd78e@posting.google.com>

On 14 Aug 2001 09:56:30 -0700, gmharrison@hydro.mb.ca (Glen Harrison)
wrote:

>Stefan Marquardt <DerKleineHotliner@hagebau.de> wrote in message news:<cnbintofkba1744h3m1it98g20fmpsos8m@4ax.com>...
>> On 14 Aug 2001 06:55:31 -0700, gmharrison@hydro.mb.ca (Glen Harrison)
>> wrote:
>> 
>> >We just changed our network card from auto negotiate to 10 half
>> >duplex. The change appears to have taken place live. Is a reboot
>> >required? Is there a command in sco unix that will show me the speed
>> >and duplex a network card is operating at?
>> 
>> ndstat -l
>> 
>> S.Marquardt
>> hagebau dd
>> germany
>
>when I run ndstst -l it shows the following even though in scoadmin
>the port is set to media_speed=10mbit, full-duplex=disable
>
>MAC Driver Info: Media_type: Ethernet
>                 Min_SDU: 12, Max_SDU: 1514, Address length: 6
>                 Interface speed: 100 Mbits/sec
>
>any idea why shows 100Mbits/sec the switch port is set to 10 half
>duplex. if I chnge the settings is a reboot required?

Any reason why you don't disclose the make and model of the card?

ndstat returns what the driver thinks the card should be doing.  To
get the card to restart NWAY autonegotiation or allow the driver to
adjust the speed.  Unplug the ethernet cable for a while.  That will
also cause the switch to change state.  Unfortunately, I've seen a few
cards (early 3c905) that will only negotiate on power up and will not
change state even with a reboot or reset.  I've also had some problems
with cheap switches (Netgear, Linksys, D-Link) where autonegotiation
fails and requires a power cycle to restart.

Unix and Linux Support

-- 
Jeff Liebermann  150 Felker St #D  Santa Cruz CA 95060
(831)421-6491 pgr (831)426-1240 fax (831)336-2558 home
http://www.LearnByDestroying.com   WB6SSY
jeffl@comix.santa-cruz.ca.us   jeffl@cruzio.com

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