duplex mode

[John_1005]

Pete,

Thats the Vendor's name. The model# is vendor specific and so nobody really knows it.

[Pete Randall]

OK, I think I see what you're running :

http://www.stratus.com/products/continuum/s400/specs.htm

They seem to have 16 (!) 10/100 Ethernet ports but they don't seem to identify anything more about them. You might try taking a look at the lan config files in /etc/rc.config.d to see what is specified. The only problem is I don't know which file to look in. Normally the file is determined by the drive you're NIC is running (in your case lan2???) and the list looks like this:

Driver/ConfigFile
btlan hpbtlanconf
btlan0 hpeisabtconf
btlan1 hpbasetconf
btlan3 hpbase100conf
btlan4 hpgsc100conf
btlan5 hppci100conf
btlan6 hpsppci100conf

You could try poking around in the various config files and see if any of them have 16 entries of the form:
HP_BTLAN_INTERFACE_NAME[0]=lan0
HP_BTLAN_STATION_ADDRESS[0]=
HP_BTLAN_SPEED[0]=100FD
with subscripts (the [0] part) running up to 16. If you see one of those, check the "SPEED" setting to see if it says FD. If not, it's half duplex.


Pete

[Mel Burslan]

As Stratus (the company) is not HP, their product may differ from a standard implementation of HPUX. Also, I have never seen a lan card driver called "lan2" in my 8 or so years of hpux admin life. Hence I am ruling out this machine has some other vendor's network adapters installed in these machines (note the plural) Stratus machines are actually two hpux hosts running in parallel with added intelligence modules from Stratus company, to provide non-stop operation. So, when it comes to hardware and tweaking it, you can not treat these machines as off the shelp hpux boxes.

My suggestion is to call stratus and get more info, if this is a show stopper. Otherwise, accept the duplex setting of the network interface and move on.

One trick to make the interface act the way you want it to act: (provided the interface supports auto negotiation and your switch is capable of doing this) Nail the switch port where this machine is connected to, to 100 full-duplex for instance. The interface will auto negotiate to this setting.

But again, when it comes to Stratus machines, all bets are off as far as hpux goes. This is like treating Virtual Vault (RIP I think) as hpux. They are similar in concept but so far apart.

[Bill Hassell]

And it is *REALLY* important to see if the LAN card is actually capable of duplex operation. A basic 10Mbit LAN cannot be changed to full-duplex, while most (but not all) 100Mbit LAN cards can be changed to full-duplex.

[rick jones]

The ioscan suggests that "lan2" is the driver - "lan2" is/was the driver for the old 10Mbit/s only interfaces, which would go a very long way to explaining why trying to make them full-duplex would not work - they do not support full-duplex.

Since this is an FT machine, I'm guessing that "the system has to be duplexed" has a meaning _other_ than one for half vs full duplex for a NIC (a NIC would 'never' be described as "simplex" BTW). Perhaps if the OP could give a great deal more context from the document he is reading it would help.

Might also want to consider contacting Stratus :)

[Himanshu_3]

Anand,

There are also two areas which you must now concentrate on apart from other things.The patches could make a great deal of difference for the operation of lanadmin commands and second is the compatibility and the proper operation of the NIC card. Check the card out whether its functioning properly .

Cheers,
Himanshu