[c-nsp] MPLS over VLAN

[Phil Mayers]

On 26/04/10 12:57, Jeff Bacon wrote:
> Stupid question I'm sure -
>
> Can you do tag switching over a dot1q trunk via a SVI on a 6500?
> (Sup720)

If I understand what you mean than yes, we do it and it works fine. You 
do have to sprinkle "mtu" statements all over the place - on both the 
physical port and the SVI. We use:

int Gi1/1
  switchport mode trunk
  switchport trunk allowed vlan 4000
  mtu 9216

vlan 4000
  mtu 9212

int Vlan4000
  ip address ...
  ip mtu 9100
  mtu 9212
  mpls ip