On Thursday 05 June 2003 22:03, Nathaniel Sbar wrote:
Just out of curiousity, I have another e1000.o
question. I hooked two pc's up to each other with a
crossover cable (so no switch needed), and started
UDPcasting from one to the other without compression.
I was using the 20030524 build. Top speed on the
transfer was about 92Mbps. That's great and all, but
the NIC is a gigabit ethernet NIC and I was hoping
that there was some way to multiply that speed by ten
(give or take). Is this something a user can do, or
is this something that takes talent (as in coding
[Sorry for the slow reply. Our mailing list software had a problem,
and was not delivering any mail for over a week. Gasp...]
The transfer rate is just shy of 100Mbps. What is probably going on is
that the cards are operating in some 100 Mbps compatibility
mode. Try once connecting both machines to a switch (on which no other
devices are connected). Possibly, the cards depend on a signal from
a switch to go into Gigabit/s mode, which might not be present if you
use a cross cable.
Also make sure that your cross cable has all 8 wires connected.
Indeed, 100 Mbps ethernet only needs 4 wires out of the 8, so it is
conceivable to have "cheap" cables where only 4 are connected. Gigabit
ethernet needs all 8.