We once used ftp -v to send files over the problematic connection. This will give you statistics on the throughput. Run it in each direction between the servers. If one direction only gets about 7-10mbps, then you may have a mismatch of duplex and/or speed settings.
On Tue, 2007-02-06 at 17:56 -0500, Ryan Novosielski wrote: > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > MaxxAtWork wrote: > > > > > > On 1/23/07, *Gabriele Bulfon* <[EMAIL PROTECTED] > > <mailto:[EMAIL PROTECTED]>> wrote: > > > > Do you think that the switch may setup its port in half-duplex even > > if the x86 card says it's full-duplex? > > > > > > It's rare but possible. > > > > If you think this may happen, is there any software tool that would > > let me verify if the connection between two machines connected by > > the same switch is running in full-duplex? > > > > > > None that I know. > > Only reliable way is to check directly from the switch, either logging > > on the switch management interface, or checking the LED for the port > > where your server is plugged. Modern switches indicate with a different > > blink/light the speed/duplex/activity of the port. > > > > Anyway, the fact that already netio was giving good results make me > > think that you probably don't have mismatches on the physical ethernet. > > Best way to check for a duplex mismatch, IMO, on UNIX/Linux (similar > command and similar output on most *nix): > > $ netstat -ian (or equivalent) > Name Mtu Net/Dest Address Ipkts Ierrs Opkts Oerrs Collis > Queue > lo0 8232 127.0.0.0 127.0.0.1 37305 0 37305 0 0 > 0 > bge0 1500 130.219.34.0 130.219.34.167 543932 0 212934 0 0 > 0 > > ...if I had a problem here, I would very likely see a nonzero number of > Ierrs or Oerrs, and possibly also Collis (when I should never see > collisions on a switched network, really, with very few exceptions). > I've had problems like this also due to below-spec cabling, but most > frequently it's duplex. > > - -- > ---- _ _ _ _ ___ _ _ _ > |Y#| | | |\/| | \ |\ | | |Ryan Novosielski - Systems Programmer III > |$&| |__| | | |__/ | \| _| |[EMAIL PROTECTED] - 973/972.0922 (2-0922) > \__/ Univ. of Med. and Dent.|IST/AST - NJMS Medical Science Bldg - C630 > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1.4.5 (MingW32) > Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org > > iD8DBQFFyQeZmb+gadEcsb4RAl/dAJkB71+7OMFWHam3fBPpUPSh7SpViwCaAwsz > +URyRq5qucK65XyEac4ZNEM= > =FFE9 > -----END PGP SIGNATURE----- > > > ------------------------------------------------------------------------- > Using Tomcat but need to do more? Need to support web services, security? > Get stuff done quickly with pre-integrated technology to make your job easier. > Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo > http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 > _______________________________________________ > Bacula-users mailing list > Bacula-users@lists.sourceforge.net > https://lists.sourceforge.net/lists/listinfo/bacula-users ------------------------------------------------------------------------- Using Tomcat but need to do more? Need to support web services, security? Get stuff done quickly with pre-integrated technology to make your job easier. Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronimo http://sel.as-us.falkag.net/sel?cmd=lnk&kid=120709&bid=263057&dat=121642 _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
