On Wed, 2002-02-06 at 04:10, 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: Try changing the following things one at a time in an attempt to discern the problem. Use something like "netperf" to test throughput. Replace the Ethernet Cable Replace the NiC Try different switch ports I recommend swapping each with one from a known good machine and testing each against a third machine. A little hardware info might help as some motheboard + NiC + driver combos are known to be bad. The minimum info needed to help determine possible causes is as follows: Motherboard Make/Model (and chipset if they vary) NiC Make/Model OS / Kernel version and driver used (and wether or not it's a module) Switch or Hub make/model In short, do some hardware swapping, and send more info so we can better help.... > > > 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. > > -- > Perry Hoekstra, MS > E-Commerce Architect > Talent Software Services > perry.hoekstra at talentemail.com > > _______________________________________________ > 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 > -- Ben Lutgens http://people.sistina.com/~blutgens/ Sistina Software Inc. pub 1024D/9A0DDC59 2001-12-12 Ben Lutgens <blutgens at sistina.com> Key fingerprint = 8FCD A1EE CEA7 DEE1 9361 F32C 0A90 30D1 9A0D DC59 sub 1024g/1FC75C99 2001-12-12 -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: application/pgp-signature Size: 232 bytes Desc: This is a digitally signed message part Url : http://shadowknight.real-time.com/pipermail/tclug-list/attachments/20020206/bc832501/attachment.pgp