[c-nsp] 6509 Interface Question

[Brett Frankenberger]

On Fri, Jul 22, 2005 at 08:39:00AM -0400, Paul Stewart wrote:
> Cisco 6509 Sup2/MSFC2
> 
> Is there any performance difference in an interface that is straight
> layer3 IP versus a VLAN Interface on the Sup?

No.  There's also no difference in the underlying implementation -- the
ability to configure a layer 3 interface is for the convience of the
engineer and is purely cosmetic -- internally, it creates a VLAN, an
SVI, and puts the physical interface into that VLAN.

"show vlan internal usage" will show what VLAN number it used for the
Layer3 interface.

     -- Brett