[j-nsp] RSVP path constraints for transit LSPs

[Rob Foehl]

Possibly-missing-something-obvious question: are there any less-involved 
alternatives to link coloring to preclude RSVP from signaling LSPs through 
specific nodes?

I've got some traffic occasionally wandering off where it shouldn't be -- 
mostly due to bypass LSPs landing on some "temporary" links -- and in this 
case, it'd be handy to just say "this box is never allowed to be a P 
router" and call it solved.

-Rob