Config about the rtl8139

Donald Becker
Mon Jul 12 14:03:48 1999

On Mon, 12 Jul 1999 wrote:

> Subject: Config about the rtl8139
> Due to some problem I need to config my network to half duplex.
> How can i know the network card is running at full duplex or half
> duplex?

By default the card runs at half duplex.
Full duplex is used only if
  -- it is autonegotatiated
  -- it is forced with a module option

You can verify the hardware setting with 'rtl-diag'

> Furthermore, can I config my network card to run half duplex only?

You can advertise only half duplex link types with 'mii-diag -A 0x00C1'

Donald Becker
USRA-CESDIS, Center of Excellence in Space Data and Information Sciences.
Code 930.5, Goddard Space Flight Center,  Greenbelt, MD.  20771

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