topic Changing Auto Neg Parameter thru SAM in Operating System - HP-UX

Changing Auto Neg Parameter thru SAM

Sudeep Singh — Thu, 06 Mar 2003 00:40:55 GMT

Hi Guys
I have to change the Auto Negotiate parameter and the speed of the Network Interface Card which is in state enabled. I am not able to do thru SAM as these parameters are not highlighted . What can be the other way to do this ?

Re: Changing Auto Neg Parameter thru SAM

Sridhar Bhaskarla — Thu, 06 Mar 2003 00:49:37 GMT

Hi Sandeep,

Use lanadmin command.

lanadmin -x 0

gives the speed of lan0.

lanadmin -X 100FD 0

will set the speed of lan0 to 100 Full Duplex Auto negotiation off. This is the recommended speed if you have 100 speed card.

The above is for 11.0 and above. For 10.20, you will need to find the nmid of the lancard. 'lanscan' can give you nmid corresponding to your lan device.

You also need to modify the corresponding file under /etc/rc.config.d/hp(type)conf. You will need to add the entries so that they will survive the reboot. type is dependent on the type of card you have. For gsc card, it will be /etc/rc.config.d/hpgsc100conf.

-Sri

Re: Changing Auto Neg Parameter thru SAM

Michael Steele_2 — Thu, 06 Mar 2003 02:53:14 GMT

Yep, that's how you do it.

Re: Changing Auto Neg Parameter thru SAM

Steven E. Protter — Thu, 06 Mar 2003 05:08:55 GMT

Warning: Using a Cisco switch? Hard code the switch to the max speed of your NIC. Hard code the speed of the card here.

/etc/rc.config.d/hpbtlan

There are widely reported problems with auto negotiate on cisco switches and many HP-UX systems NIC cards.

I'm working on publishing an itrc paper on how it helped make an Ignite call last 4 weeks.

SEP

Re: Changing Auto Neg Parameter thru SAM

Sudeep Singh — Fri, 07 Mar 2003 01:37:25 GMT

Thanks Guys . I have been able to change it using lanadmin. cheers !!

Re: Changing Auto Neg Parameter thru SAM

Rajeev Shukla — Fri, 07 Mar 2003 03:22:37 GMT

Hi Sudeep,
But remember though you have changed using lanadmin command this change will not be permanent unless you change in the file inside /etc/rc.config.d/hppci100conf or the related file depending what type of card you have. Other wise when next time you reboot your server the lan card will be set to previous settings.

Rajeev