>>>>> "David" == David Schleef <[EMAIL PROTECTED]> writes:
David> On Mon, Mar 22, 1999 at 03:26:05PM +0000, Vicente Navarro
David> wrote:
>> Hi,
>>
>> I am new in the RT Linux world. I have a question about RT
>> drivers. How can I modify the PCI ethernet driver that comes with
>> linux to implement a RT Ethernet driver ?. I am developing a some
>> kind of router with RT features. I want to make a connection
>> beetween two points in real time, so that I can play video or play
>> music in remote machines. The connection is a point to point
>> connection, is not a connection beetween two hosts in the same
>> ethernet. I am using PC linux with many network cards as a
>> router. Many thanks in advance.
>>
>> Vicente [EMAIL PROTECTED]
>>
David> Ethernet is not capable of performing in hard real-time.
David> Check some of the RFCs and other standards to see that
David> ethernet involves things like "random waits" in order to
David> perform in many common situations. The only way to avoid
David> these situations is to have exactly _one_ computer on the
David> network.
That's not true.
If you run Ethernet in full duplex mode (a node at each end of the
wire) then there are NO random waits. In that mode, Ethernet is
simply a high speed point to point connection.
paul
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