I am having problems with a slow ethernet on a local LAN. I had some could
suggestions from people in this list, and I would like to thank everyone.

The problemis still there. One suggestion was to make sure that both of the
NICs
connected to the hub are in half-duplex. The LAN is a 100base-T connection. One
of the cards is a 3com vortex (3c905).  I run a diagnostic on it and I know is
running full-duplex.

How can I force it to half-duplex?

In the options listed on  http://cesdis.gsfc.nasa.gov/linux/drivers/vortex.html
I do not see one specifically for half-duplex. Here is the output from the
diagnostics (if you see anything else strange please let me know):

./vortex-diag -a -e -m
vortex-diag.c:v1.07 11/24/98 Donald Becker ([EMAIL PROTECTED])
Found a 3Com PCI Ethernet 3c905 rev 0 at 0xff00.
 Indication enable is 06c6, interrupt enable is 069e.
 No interrupt sources are pending.
 Transceiver/media interfaces available:  MII.
 MAC settings: full-duplex.
Maximum packet size is 0.
 Station address set to 00:10:4b:9a:ec:4a.
 Configuration options 4000.
Parsing the EEPROM of a 3Com Vortex/Boomerang:
 3Com Node Address 00:10:00:10:00:10 (used as a unique ID only).
 OEM Station address 00:10:00:10:00:10 (used as the ethernet address).
 Manufacture date (MM/DD/YY) 0/16/0, division , product .
Options: none.
  Vortex format checksum is incorrect (00 vs. 10).
 Cyclone format checksum is incorrect (00 vs. 10).
 MII PHY found at address 24, status 786f.
 MII PHY 0 at #24 transceiver registers:
   3100 786f 2000 5c01 0141 40a1 0001 0000
   0000 0000 0000 0000 0000 0000 0000 0000
   0000 0000 0000 0000 0000 0000 0001 8060
   8020 0c38 0000 1800 a3b9 0076 1405 001b.

Thanks for any help.

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Stavros C. Kassinos              | [EMAIL PROTECTED] |
                                 | Office: (650)-723-0546     |
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Stanford University              | www.stanford.edu/~kassinos |
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