An RSVP enabled router receives an RSVP reservation message for a new RSVP path.
The router is unable to accommodate the reservation request. Which action does the router
take?
A.
The router sends a ResvTear message to the downstream router.
B.
The router sends a ResvTear message to the upstream router.
C.
The router sends a ResvErr message to the upstream router.
D.
The router sends a ResvErr message to the downstream router.