[c-nsp] End-to-end up/down awareness for EoMPLS on VLAN

[Paul van der Zel]

I'm looking for the most effective way to obtain awareness of the  
existence or failure of EoMPLS xconnect's across an MPLS cloud being  
provided to an edge IP layer via VLAN sun-interfaces. Platforms are  
7206, GSR and 6509 Sup7203bxl. Routing is mix of OSPF, BGP and  
static. I know there is a mechanism on GSR IOS that can put Ethernet  
into up/down state if associated xconnect is down, but this does not  
extend to VLAN sub-interfaces.

Are there any oam-style facilities available for this? would BFD work  
or using saa to track ip hop and withdraw route be the best approach?

Thanks!
--

Paul van der Zel
Internet Solutions, South Africa
Tel: +27 (11) 575-0818