III. MINIMUM-COST MULTIPLE AVAILABILITY
GUARANTEED PROTECTION
This section investigates minimum-cost allocations for multiple
availability guaranteed protection. Each edge fi; jg is
assumed to have an associated cost cij . Section III-A begins
by demonstrating the MAGP problem to be NP-Hard.
Subsequently, an MILP is formulated to find a minimum-cost
routing that meets a demand’s partial protection and availability
requirements. In Section III-B, MAGP is compared to the 1+1
full protection scheme.