"Raphael H. Becker" wrote: > > On Sat, Sep 18, 2004 at 01:11:13AM +0200, Andre Oppermann wrote: > > I'm unable to reproduce your problem. > > > > Usually in these cases there is an ethernet duplex mismatch somewhere. > > Can set the network cards and the switches to fixed 1000 or 100 full-duplex? > > Yes, one of my first tests. Both machines fixed to their nominal > transfer rate. Tested different ports, different irons (source and > target), different cables. Always same result. > > All channels are able to do their maximum speed. Ok. > Changing target and source (100 -> 1000) resulted in >10MBytes/sec, same > machines, same cables, same everything 1000 -> 100 resulted in what we > discuss here (300kBytes). > > 100->100 (between the two PE350) is working fine, too. > > The problematic case (1000 -> 100) was tested with 3 machines 5.x and 2 > machines 4.x, all cases the same. Hmmm... > I'm not sure this is a "physical" problem. The high number of out-of-order packets on your 4.10 machine is very suspicious. > I will try something else next days: > * New cables > * FreesBIE with 4.10 on the 5.3-Boxes, ftp'in /dev/zero directly to /dev/null ... > * throtteling 1000MBit ... maybe > > Maybe: > * another GBit-Switch (if available) That would be nice. Try to get some other brand or model than the one you have now. > Workaround: > * Buy 1000MBit-Cards for the both "Router"-boxes Why that? Do you have to do TCP transfer to/from these machines? Yet another test you could try: 5.3 GE ---> FE 4.10 "Router" FE ---> 4.10 FE -- AndreReceived on Fri Sep 17 2004 - 23:15:02 UTC
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