On 07/20/2011 10:23 AM, Allen Vinegar wrote:
I have a working configuration
with my desktop computer but can't seem to get it to work with
the laptop. When I connect the USRP2 to the ethernet port
(Gigabit) (configured for 192.168.10.1) the link light fails
to go on. I added a second Gigabit interface using a USB to
Gigabit internet dongle at 192.168.10.3. This now shows up as
eth1. When I plug the USRP2 into it the green link light comes
on but no activity. Next I take the network cable connected to
my router from the desktop computer and plug it into eth0. I
see a link and activity, eth1 shows a link but no activity.
Next I reverse the two cables, The router cable is plugged
into eth1 the link light is on with activity. The USRP2 is
plugged into eth0 and there is no link at all. Does any one
have any ideas on what is going on? Thank you.
Al W8KHP
Is it possible that your T61 ethernet port isn't GigE capable?
Also, there are two problems with the USB dongle setup:
o You assigned it the same subnet address as the other ethernet
interface, so that's likely to cause routing confusion
o A USB-based GiGe dongle won't actually sustain 1GiGe rates--the
maximum it could *possibly* do is 480MBps, but
in reality it'll likely be closer to 300Mbps, which is only
about 1/3rd of what you need.
--
Marcus Leech
Principal Investigator
Shirleys Bay Radio Astronomy Consortium
http://www.sbrac.org
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