Indicates the reason for static LSP/CR-LSP Down:
0. Other
1. Static LSP/CR-LSP up
2. MPLS disabled on an interface
3. MPLS TE disabled on an interface
4. Route change
5. Tunnel binding associated with the static LSP/CR-LSP deleted
6. Static LSP/CR-LSP configuration delete
7. Inbound interface Down
8. Outbound interface Down
9. Tunnel associated with the static LSP/CR-LSP has been shut down
10. Static LSP/CR-LSP configuration update
11. The bound ring is invalid.