This book investigates different approaches for designing and operating
an optical network with the objectives that (1) more connections can be
carried by a given network, leading to more revenue, and (2) connections
can recover faster in case of failures, leading to better services. The
book covers different networks and proposes different approaches to
explore every aspect of a protection scheme. Tradeoffs between different
objectives, e.g., resource efficiency vs. recovery time, are explored
and practical approaches are proposed and analyzed.