A restoration mechanism using K-shortest control paths

This paper presents a restoration scheme using k-shortest control paths. Our mechanism classified connections into two classes: real time class and non-real time class. In real time class, an ATM protection switching (APS) mechanism, a preventive restoration method defined in 1.630, is used as a restoration scheme that is realizing fast restoration and high reliability. In the non-real time class, the interactive restoration mechanism using k-shortest control paths is applied. The performance evaluations via simulations show the effectiveness of the proposed mechanism and the improved restoration ratio than the pure APS mechanism.