[c-nsp] 6500 and MPLS

[Peter Rathlev]

On Wed, 2008-10-15 at 09:59 +0200, Reinhold Fischer wrote:
> A dirty hack can be done to have VLAN-based EoMPLS without
> expensive cards. Just configure an additional VLAN on the box,
> assign a port to it and connect this single port in the new 
> VLAN to a port the VLAN for which you want to have VLAN-based
> EoMPLS with a short cable.
> 
> Then do PORT mode EoMPLS on this single port. Did not try it
> myself but according to my SE this is used by some customers.

We use this extensively to connect several locations L2 wise across an
MPLS core. We use local SVIs, and a loop cable between a trunk port with
all the relevant SVIs and a physical xconnect'ed port ending up in
another location. It works very well (in SXF at least), but it does
waste a lot of physical ports. Since PFC3 EoMPLS is still point-to-point
you need 2x2 physical ports for fully redundant connections from A to B,
not counting the actual connections. :-|

Regards,
Peter