NIC / Duplex settings

Will73 · 16-11-2005, 11:20

Hi,

I installed a NIC last night (i've been using USB connection to my modem) in readiness for the higher speeds that are on the way

It's up and running fine, but i was wondering about the Duplex settings. It's a basic 10/100 D-Link Network card going to the NTL: Home 100 modem. I'm on the 1meg connection (despite being told they had bumped me up to 10Meg, when i asked for it on Saturday).

At the moment both the modem and card are set to auto-detection, as this was the defualt. Would it be beneficial to change these settings? I think i read on an NTL help page to set both to 10 half duplex?? but not really sure why?

Any advice appreciated.

Thanks,
Will

altis · 16-11-2005, 11:54

http://homepage.ntlworld.com/robin.d.../ethernet.html

Will73 · 16-11-2005, 13:32

Thanks for the link.

It seems to tell me to set both to Full duplex. So..my next question is 10 or 100? or doesn't it matter? Also would auto-detect not just give me the best configuration anyway?

Sorry for all the questions but full/half Duplex is an area i'm very unfamiliar with.

Thanks,

DieDieMyDarling · 16-11-2005, 14:43

I set mine to 10mb Full, both on the modem and on my network port. I read it in the main 10mb thread, i think.

Will73 · 16-11-2005, 15:25

I'll give it a go.

Cheers,
Will

bongman_uk · 16-11-2005, 16:22

10mbit full duplex is needed to get the full use from a 10mb internet connection. Any lower and you wont get full speeds

100mbit half duplex will also be perfectly fine

andybarker · 16-11-2005, 16:25

Just leave to auto - will work at 10mbps when connected to a 10mbps connection, and 100mbps when on a 100mbps connection. As for duplex settings, that should also be automatic. You only ever need to set those manually if you have any problems (which i've never heard of anyone needing to do).

Slipstream · 16-11-2005, 16:27

I put it to 100mb full duplex... seems to give me the best speeds.

bongman_uk · 16-11-2005, 16:32

Quote:

Originally Posted by andybarker

Just leave to auto - will work at 10mbps when connected to a 10mbps connection, and 100mbps when on a 100mbps connection. As for duplex settings, that should also be automatic. You only ever need to set those manually if you have any problems (which i've never heard of anyone needing to do).

if it defaults to 10mbit half duplex, it will not be enough to max-out your 10mb broadband

andybarker · 16-11-2005, 16:34

Quote:

Originally Posted by bongman_uk

if it defaults to 10mbit half duplex, it will not be enough to max-out your 10mb broadband

If he doesn't get 10mbps it is worth playing with the settings, but I would advise leaving it at the defaults unless there are problems.

bongman_uk · 16-11-2005, 16:38

A fair point. (and worth a try)

Chrysalis · 16-11-2005, 21:30

Seems the ntl 250 has no duplex options and isnt tweakable, I left my lan card on auto negot. It is using 100 but dont know if full or half.

**Paul** · 16-11-2005, 22:06

Quote:

Originally Posted by Chrysalis

Seems the ntl 250 has no duplex options and isnt tweakable, I left my lan card on auto negot. It is using 100 but dont know if full or half.

Yes, I noticed that. Still, at 100M it's not going to make any difference to the CM performace whether its full or half.