[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index][Old Index]
Re: Collisions using 3Com 3c905C-TX ethernet cards.
On Apr 22, 2011, at 3:55 PM, Thor Lancelot Simon wrote:
>> I won't try to quote your "netstat -i" output since it was poorly wrapped,
>> but a quick estimate shows about 1% collision rate. That's not unusual
>> for a hub or crossover when running at 100Mbps; to fix it, use a switch
> That doesn't make any sense -- how is it possible to have a legitimate
> collision on a crossover cable? Are you sure there is not a duplex
You're right for 100Base-T and 100Base-TX which use two pairs over Cat-5
cabling (and one pair is dedicated to either send or receive with a crossover
cable); but I seem to recall that collisions still happen with a 100Base-T4
crossover cable, which uses four pairs rather than two.
Moot point when considering a TX NIC, though....
Main Index |
Thread Index |