Full or Half? [Archive] - SpeedGuide.net Broadband Community

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Pepsi90919
12-10-00, 11:15 AM
Should I set my NIC to full or half duplex or does it matter?

JL Sparks
12-10-00, 11:31 AM
What brand NIC do you have? I ask because the 3com cards have an "auto negotiation" setting that will set this mode for you. Some other NICs probably have a similar setting too.

Before I discovered that setting, I played with each mode manually. On full-duplex I encountered no connectivity.

Hope it helps.

[This message has been edited by JL Sparks (edited 12-10-2000).]

Pepsi90919
12-10-00, 11:49 AM
It's a D-Link 528 10/100. I have the Realtek monitoring program and when I have it on full duplex it reports all sorts of errors in the transmission while there are 0 with half duplex. So I guess I'll stay on half. http://www.speedguide.net/ubb/smile.gif

glc1
12-10-00, 02:13 PM
Cable systems can only handle 10mbps @ half-duplex. Setting the NIC to 100mbps and/or full-duplex may result in unusual performance or loss of connection.

cjoconn22
12-10-00, 02:24 PM
well, i have my Connection Type and Full/Half-duplex settings at "Not Present", and mine seems to work very nicely (800K/sec)

dannjr
12-10-00, 03:46 PM
You may all want to read through this thread from speedcorp about network cards and the difference it can make
http://www.speedcorp.net/ubb/Forum1/HTML/000002.html

also this one on tweaking a linksys network card it may applie to your card.
http://cablenut.performance.cx/nictweak.htm

I run my network card at half duplex. weather its at TX 100 or T10 it depends on how you connect if your connected direct with out a router then T10 half duplex is fine but your card may handle full duplex better in some cases.



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JL Sparks
12-11-00, 12:09 AM
I used the logic that full must be better than half, right? http://www.speedguide.net/ubb/wink.gif Then I had serious connection problems, so bigger isn't necessarily better in some cases.

My understanding is that cable technology can't handle full-duplex mode, but I'm really a networking novice.. best bet is to stick with what works, and maybe one of the experts here can clarify the difference between full and half duplex.

wee96
12-11-00, 12:24 AM
dont use full duplex, most modems have a big time problem with it and youll get slow downs.

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"you better tell em to come reshingle the roof, just keep feedin me free drinks till i puke"