[c-nsp] 6509 Interface Question

[Paul Stewart]

Thanks Brett... I presumed that answer but wanted to hear it from
someone else..;) 

-----Original Message-----
From: Brett Frankenberger [mailto:rbf+cisco-nsp at panix.com] 
Sent: Friday, July 22, 2005 9:57 AM
To: Paul Stewart
Cc: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] 6509 Interface Question

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