100BaseT network collision question

Gaunt

Senior member
Aug 29, 2001
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Just reading some of the other posts and I decided to throw this question out there and see if anybody might have an answer.

I have a 5 port network anywhere autosensing 10/100 hub. All of the connections are 100mbit/s, not that that should matter, but whenever there is traffic even just between 2 connections at 100mbit/s, there are many many collisions. The collision light on the hub is almost a constant red. Of course this only occurs when there is traffic of a significant size, such as transmitting a file a few megs in size, etc.

The computers are running windows 2000 professional.

Does anybody have any ideas?

 

bevancoleman

Golden Member
Jun 24, 2001
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hmm, thats fairly normall for a hub. A switch will cut down on the number of collisions (and small 5 ports are farly cheap), though I would think it;s causing ny problems (slower xfer but thats all).
 

Gaunt

Senior member
Aug 29, 2001
450
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No, it doesn't seem to be causing any problems, I just didn't figure that there should be that many collisions just for 2 connections to the hub. Oh well, thanks for the quick response, just thought I'd see if anybody else had any insight on it, maybe a way to cut down on the collisions a bit.
 

ScottMac

Moderator<br>Networking<br>Elite member
Mar 19, 2001
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You could have a/some bad cabling or connections/connectors.

You should hard-set the speed and duplex on the PC-side. Auto-sense doesn't always properly detect (especially with cheap/old NICs). It sounds like the switch is set for full duplex and the NIC is set for half (or vice-versa)...that will cause serious collision probelms such as what you are describing.

FWIW

Good Luck

Scott