[CentOS] Linux Kernel Physical Interface Limit

Wed Jul 14 20:43:46 UTC 2010
Gordon Messmer <yinyang at eburg.com>

On 07/13/2010 05:51 PM, William Warren wrote:
>    I think it's baloney mainly because i can't find a mention of it
> anywhere.  Is there REALLY a limit on the number of physical network
> interfaces in the Kernel?

Most of the limits on the number of any device come from the major/minor 
numbers on the device nodes.  Since ethernet adapters don't have device 
nodes, I'd be surprised if there were any practical limit.

I'm able to create at least 1025 VLANs on my ethernet adapter, and VLANs 
are "real" interfaces in the kernel.