[c-nsp] MPLS capabilities of SUP2

[Matthew Crocker]

I'm working with a customer on a network redesign.  The plan is to use  
7206/NPE-G1s as PE routers and 6509/SUP2 as P routers.   The SUP2s  
would only need to switch the MPLS tags they won't need to do anything  
special.  The 7206s will handle the grunt work of maintaining per VRF  
routing tables and adding/removing MPLS tags.

Can the SUP2 handle this or will I need to go to SUP720/3BXL?  I could  
just dumb the 6509s down and run everything L2 with dot1q VLANs but  
looking to the future MPLS would be nice.

The layout would be

CUST <--T1/IP--> [7206] <--GigE/MPLS--> [6509] <--GigE/MPLS--> [6509]  
<--GigE/MPLS--> [7206] <--T1/IP-> CUST