topic lanadmin in Operating System - HP-UX

lanadmin

Uday_S_Ankolekar — Mon, 11 Jun 2001 16:10:04 GMT

I've two servers back-to-back connected with 100 mbps full duplex speed.
When server boots the speed falls to half duplex. Why and How Do I resolve it??

Re: lanadmin

Peggy Fong — Mon, 11 Jun 2001 16:29:06 GMT

If you do a search on "full duplex" among other key words in the forum you will find more info on your problem. One thing I found was that you might need to configure a file to maintain your settings across boots. Try looking at /etc/rc.config.d/hpbase100conf.

lanadmin MODE [ppa|nmid]
where MODE = 100FD
and you get your ppa or nmid from your lanscan for the card will allow you to change this on the fly (sorry if you already knew that).

Peggy

Re: lanadmin

James R. Ferguson — Mon, 11 Jun 2001 16:35:42 GMT

Hi:

I'd suggest that you explicitly set the speed and mode in the appropriate /etc/rc.config.d/ "conf" file.

For example, if your lan card's driver is 'btlan1' as seen in an ioscan (ioscan -fnk -C lan), then set:

# HP_BASET_SPEED=100FD

in /etc/rc.config.d/hpbasetconf

For a mapping of configuration files and card types see this:

http://techsolutions.hp.com/fe/configs.html#config_files

...JRF...

Re: lanadmin

MANOJ SRIVASTAVA — Mon, 11 Jun 2001 17:04:44 GMT

Hi Uday

Do a lanscan to identify the card , the add it to /etc/rc.config.d.hpbase100conf , and then stop and start the net services from /sbin/init.d/net file.

Manoj Srivastava

Re: lanadmin

rick jones — Tue, 12 Jun 2001 16:34:01 GMT

the specs for 100BT state that if autoneg "fails" the nic should go into half-duplex operation.

if one side is hard-coded to a duplex setting - say full-duplex, and the other side is set to auto-negotiate, auto-neg will fail and the auto-neg side will go half-duplex.

so, make sure that both sides of a link are set the same way - either both auto, both half, or both full.

and i suppose it would not hurt to be on the latest patches for your driver(s) :)

Re: lanadmin

Uday_S_Ankolekar — Mon, 18 Jun 2001 13:53:26 GMT

Hi,
Thanks folks.. That helped me a lot. You won your points.!