Hi Matt, That appears to have been my problem. I do remember reading about those problems but I didn't find anything with errors similar to what I had specifically. Thanks for the suggestion.
Gene Gamble Bachelor of Science in Computer Engineering, Master of Software Engineering Undergraduate Class of 2012, Graduate Class of 2013 Embry-Riddle Aeronautical University ________________________________________ From: Matt Dexter [[email protected]] Sent: Friday, October 05, 2012 9:10 PM To: Gamble, Gene A Cc: [email protected] Subject: Re: [casper] ROACH 1 Ethernet Problems Hi Gene. I'm no expert but I think there are lots of reports of PPC network problems at 1000 Mbps so that for reliable connections we are recommended to use 100 Mbps links. see for example: http://www.mail-archive.com/[email protected]/msg02881.html For the 25 or so Roach1s I work with we restrict all to 100 Mbps. If the network switch supports 10/100/1000 Mbps we configure the switch ports with Roach1s to use just 100 Mbps. I think the instructions as sent with the Roach1s there are instructions to restrict PPC network ports to 100 Mbps max. Matt Dexter On Sat, 6 Oct 2012, Gamble, Gene A wrote: > Date: Sat, 6 Oct 2012 00:57:40 +0000 > From: "Gamble, Gene A" <[email protected]> > To: "[email protected]" <[email protected]> > Subject: [casper] ROACH 1 Ethernet Problems > > Hey Guys, > I've recently started using and setting up the ROACH boards for my professor. > We have 5 > boards, 3 of which work fine, and two with problems connecting over Ethernet. > On one > board, every couple of seconds I get alternating messages: > > eth0: link is up, 1000 FDX, pause enabled > eth0: link is down > > Also the leds D6 and D7 alternate between on and off when with the messages > so they are > on after the eth0: link is up, 1000 FDX, pause enabled message and off on the > other > message. > > On the other board, the network never gets a an ip address from the router's > dhcp and > just shows the following every time: > > Listening on LPF/eth0/02:00:00:04:03:05 > Sending on LPF/eth0/02:00:00:04:03:05 > Sending on Socket/fallback > DHCPREQUEST on eth0 to 255.255.255.255 port 67 > DHCPREQUEST on eth0 to 255.255.255.255 port 67 > DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 8 > DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 16 > DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 11 > DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 17 > DHCPDISCOVER on eth0 to 255.255.255.255 port 67 interval 9 > No DHCPOFFERS received. > > Then the message emac0: RX disable timeout appears. > > I do not believe it to be a linux problem as I get the same results even if > use a SD > card from a good ROACH and put it in one of these two machines I get the same > results. > I have tried changing between static and dhcp network configurations in the > /etc/network/interfaces file. Any help would be welcomed and appreciated. > > Gene Gamble > Bachelor of Science in Computer Engineering, Master of Software Engineering > Undergraduate Class of 2012, Graduate Class of 2013 > Embry-Riddle Aeronautical University > > >
