Duplex mode

[Dirk Raebiger]

Hi there!

Am Tue, 02 Nov 1999 schrieb Donald Becker:
>On Tue, 2 Nov 1999, Dirk Raebiger wrote:
>
>> I'm using v1.08a of rtl8139 together with linux kernel 2.2.13. The network
>> administrator at the institute here says that my machine (gollum) sends in
>> full-duplex mode. This is also what the led of the card says (full duplex).
>
>Incorrect duplex is not a typical problem for a rtl8139.

May be right, I am no wizard on that topic. Can you tell me a apropriate
place for this?

>>>  The chip configuration is 0x10 0x2c, MII half-duplex mode.
>Then the chip is in half duplex mode.

But the card's led says, "full duplex"!

>Please report the contents of /proc/net/dev rather than the summarized
>output of 'ifconfig'.

Inter-|   Receive                                                |  Transmit
 face |bytes    packets errs drop fifo frame compressed multicast|bytes    packets errs drop fifo colls carrier compressed
    lo:   24492     423    0    0    0     0          0         0    24492     423    0    0    0     0       0          0
  eth0:248148029  483518    1    0    0     0          0         0 176119795  437044    0    0    0 103195       0          0
b

>I would hardly call this reporting errors -- a single Rx error could be from
>many sources.

What can I do?

>You are getting collisions which is a certain indication that you are *not*
>in full duplex mode.

Where can I read about collisions and their sources?
What do you think is it then?

>There is no indication that the card is in full duplex mode.
>None at all.

What about the card's led?

Dirk

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