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Self-healing ATM networks based on preplanned restoration of virtual paths.

Molisz W.

Systems Science

2002

Vol. 28, nr 2

107-30

Network survivability is critical for service continuity in the information era. This article focuses on restoration strategies in self-healing ATM networks, based on virtual paths (VPs). The article briefly categorizes restoration techniques in SONET/SDH networks, as well as in ATM networks, and compares them. Then a particular self-healing scheme, operating on preplanned backup VPs, suitable for mesh-type networks is described in detail. Based on this scheme, the simulation programs have been implemented, and verified. The method is illustrated by simulation experiments of the typical wide area ATM network in Poland.