M. Koehrer wrote:
> O.K.,
> 
> I have done a test with the standard e1000 driver of linux (2.4.33, the Intel 
> e1000 driver 7.1.9)
> I have written the following bash script: 
> modprobe e1000
> ifconfig eth1 up 192.168.2.2
> dmesg -c
> sleep 1
> echo "--------"
> dmesg -c
> sleep 1
> echo "--------"
> dmesg -c
> 
> The output of this is:
> 
> Intel(R) PRO/1000 Network Driver - version 7.1.9
> Copyright (c) 1999-2006 Intel Corporation.
> e1000: 03:05.0: e1000_probe: (PCI:33MHz:32-bit) 00:0e:0c:b8:e9:32
> e1000: eth1: e1000_probe: Intel(R) PRO/1000 Network Connection
> --------
> --------
> e1000: eth1: e1000_watchdog: NIC Link is Up 100 Mbps Half Duplex
> 
> (Here I have connected the e1000 to a Hub - this is where the 100Mbps Half 
> Duplex comes from).
> As you see it takes about 2 seconds after ifconfig until the e1000 is able to 
> communicate on Ethernet.
> I think, the situation is the very same with rtnet... 

...except that Thinus's report indicates total failure if transmissions
takes place earlier. Could you test what happens when you sent packets
during that init period?

> This is not nice, however as it is a one-time initialization delay I think it 
> is acceptable.

I think we could live with a simple delay on ifup, if A) we know for
sure (or almost) how long it must be and B) cable re-plug doesn't render
the device useless until the next manual ifdown/up cycle.

Jan

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