Maximum number of NICs for Linux.

[Patrick Lists]

On 09/25/2010 12:02 AM, byrdca at gmail.com wrote:
> Today I was asked about the maximum number of NICs supported by the
> Linux kernel.  My initial response was "probably more than you need".
> Its been bothering me that I didn't know where to find the answer.  I
> looked in include/linux/limits.h, I didn't expect to find it but that
> was my first thought.  I then started digging through drivers/net but
> I soon got lost.  I'm after the hard data for the maximum number of
> ethernet cards a modern Linux system supports, anyone have any ideas
> on where I find this data?

Iirc from a loooong time ago there was a limit of 256 virtual interfaces 
per physical interface. Hopefully someone can chime in if this is still 
the case.

Regards,
Patrick