determining ethernet port speed in solaris

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# 1  
Old 11-07-2003
determining ethernet port speed in solaris

i purchased, what was labeled as a 4-port fast ethernet sbus card from ebay.

i installed it in my ultra1, and it seems to be working fine. how can i determine if the card is infact a fast ethernet card vs. the standard ethernet 4-port card?
# 2  
Old 11-07-2003
Look at the man page for the driver it's using. Fast ethernet drivers will have features to change speed and turn autoneg on and off. The only fast 4-port card I know is qfe and "man qfe" describes what it can do. But there may be others.
# 3  
Old 11-07-2003
hmmm... i'd still like to know if there is a specific command... but i got lazy and looked at the switch lights... it is a 10/100 4-port card Smilie
# 4  
Old 11-07-2003
You could use the ndd command to show you the settings for your interfaces. I don't remember the exact options you'd use, but if you do

ndd /dev/tcp \?

it will show you the list of parameters ndd can report. One of them should certainly be able to tell you the speed.
# 5  
Old 11-07-2003
The tcp driver won't know the link speed. How could it? There could be many links. You have to ask the card's driver.

ndd /dev/qfe instance n -get \?

would show the possible parameters for a qfe card. But unless you're already familiar with the qfe driver, you would probably do a "man qfe" first. And in any event you're back to needing to know the driver's name.
# 6  
Old 11-07-2003
That's right of course. Use ndd on the particular interface, not on tcp itself. Now that you wrote that, I remember the ndd commands I was using to set link speeds were all done with /dev/qfe just like you say. Sorry I messed it up the first time.
# 7  
Old 11-07-2003
danke to you both...

this goes in curious infomation file. Smilie
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