Running full duplex on a half duplex network will typically cause boatloads of collisions. I was thinking the same thing Nate was until I saw a collision count of zero. I am guessing cable, hub/switch port or NIC, just like everyone else. -----Original Message----- From: Nate Carlson [mailto:natecars at real-time.com] On 6 Feb 2002, Perry Hoekstra wrote: > One of my boxes on the network is having extreme difficulty in > communicating with the rest of the network. If I do an ifconfig, I > see upwards of half of the packets dropped: > > > eth0 Link encap:Ethernet HWaddr 00:02:E3:05:92:46 > inet addr:10.0.0.1 Bcast:10.0.0.255 Mask:255.255.255.0 > UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 > RX packets:1744 errors:967 dropped:0 overruns:0 frame:2462 > TX packets:12380 errors:32 dropped:0 overruns:0 carrier:64 > collisions:0 txqueuelen:100 > RX bytes:288515 (281.7 Kb) TX bytes:16860881 (16.0 Mb) > Interrupt:10 Base address:0x8000 > > Now the network is just four boxes, no DNS, just host files and static > IP addresses for three plus one laptop that uses DHCP (which isn't the > box that is having problems). My question is: how do I determine if I > have a bad network card/driver versus a bad network configuration. I > started digging around with some of the network tools to try to > diagnose the problem but nothing popped up. However, I am > network-challenged in this area and something could be staring me in > the face and I wouldn't know it. Is your network card running in full duplex on a half duplex network? When you see 1/2 of the packets dropped, that's the problem a lot of the times.. -- Nate Carlson <natecars at real-time.com> | Phone : (952)943-8700 http://www.real-time.com | Fax : (952)943-8500 _______________________________________________ Twin Cities Linux Users Group Mailing List - Minneapolis/St. Paul, Minnesota http://www.mn-linux.org tclug-list at mn-linux.org https://mailman.mn-linux.org/mailman/listinfo/tclug-list