[c-nsp] MPLS VPN on Sup720-3BXL

[David Freedman]

Also "show mls cef vrf <vrf>" is your friend for this kind of thing



Pete Templin wrote:
> Greetings,
> 
> I'm working on our first foray into the Sup720-3BXL world, and ran into 
> a wall trying to transfer an MPLS VPN onto the box.  Can anyone provide 
> some pointers on where to look and what to fix?
> 
> Old: 7507/RSP4/12.0(27)S5, customer is on a subinterface of a PA-FE-TX. 
>   Simple /30 interface subnet, far side is pingable from within the VRF 
> and externally.  Another 7507 has several T1s in the VRF; those are all 
> pingable from the first 7507, and the first 7507's /30 Ethernet is 
> pingable on the second.
> 
> New: 6509/Sup720-3BXL/12.2(18)SXF12/WS-X6348-RJ-45, customer is on a 
> VLAN interface and a 10/100 port is an access member of the VLAN. 
> Customer equipment is pingable from locallly within the VRF, but the T1s 
> on 7507#2 aren't pingable, and the two 7507s can't ping this Ethernet /30.
> 
> MPLS path seems good end-to-end - 'no mpls ip propagate-ttl local' shows 
> the traceroute drop to one hop, both endpoints show the two core routers 
> as LDP neighbors, both sides have 'send-community extended' on the BGP 
> neighbor sessions, receive ACLs have been opened.  'sh ip ro vrf <name>' 
> shows the routes with correct (global) next-hops.
> 
> Any thoughts?
> 
> Pete
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