Speed of network conn?

[Loonygirl]

I think I'm being a bit thick here....how do I change the speed at which my network card is running?

I've found out the car is:
tu0 DEC TULIP (10/100) Ethernet Interface
auto negoatiaion off: selecting 10BaseT (UTP) port: half duplex.

Now, the network is running at 100MPS, and I *think* it's running full duplex (not 100% sure on this one)

I've looked through the manual pages, trawled Google etc etc but I can't find how to change my network speed. I assume that "auto negotiation off" means that the auto detect feature for network speed has been turned off?

Thanks!!

Sarah

 

[Loonygirl]

Apologies....I've just found something on lan_config which seems to be what I want.

If I use this to turn the auto negotiation on, will I need to restart the network? Will it cause problems? Should I wait until most people have logged off their PC's just to be on the safe side?!

Thanks,

Sarah

 

[fredericofonseca]

Being hardware related you will need to reboot the machine UNLESS it is a hot-pluggble card.

Regards

Frederico Fonseca
SysSoft Integrated Ltd

http://www.syssoft-int.com

 

[ericbrunson]

Unplugging the cable, ifconfiging the interface down, the plugging it back in and ifconfig up should cause it to renegotiate.

 

[pete91z]

if on tru64 with a single card you can try consvar -g ewa0_mode to display the console setting of the card. lan_config should be able to adjust the speed at OS level, if the device is supported.

 

[pete91z]

In response to your first post the speed is only 10/half. this is probably set at console level (ewa0_mode), so you may need to shutdown it down, change the console setting and then reboot.

 

[Loonygirl]

Failed to get ewa0_mode ?

The lan_config appears to have worked in that it says in the messages file that it has changed it's speed setting to 100MPS with auto-negotiation turned on. However, in terms of speed on the network, nothing has changed. So perhaps I need to reboot the network first.

I have actually added a file into rc3.d directory which sets the speed of the card because somewhere in the startup sequence, something is telling the card to turn off auto-negotiation and run at 10MPS half. I haven't been able to reboot the server as yet, but I'm hoping that this will help solve the network login problem!

Sarah

 

[pete91z]

If you can shut it down to console, do a show dev e. The variable name should something like e*_mode and it will probably be set to Twisted-Pair. If the card is 100/Full compatible, you can set this FastFD. This should force the card to 100 full.

 

[funkyd]

If you want to explicity enable auto-negotioation on the car you can use:
>>> set ewa[#]_mode auto-negotiation