p-Cycles: An overview

One of the most promising techniques of network protection i.e.
p
-Cycles (pre-planned, preconfigured-cycles) is reviewed in this paper. In this paper we provide a survey of the main work on
p
-cycles to date. The characteristics of
p
-cycles and various types of protection provided by them are discussed. Finally, some possible extensions or enhancements of the
p
-cycle concept are discussed.