Recent progress in dynamic routing for shared protection in multidomain networks

A large number of studies on routing for shared protection focus on minimizing the network transport capacity in a static routing framework. A smaller number of studies have been conducted on dynamic routing. Most of them do not meet the scalability requirements of multidomain networks. This article reviews the recent works in dynamic routing for shared protection in multidomain networks, and proposes a quantitative comparison among the most efficient approaches. Some of the remaining challenges are discussed at the end of the article.