Networking

GMPLS-Based Multidomain Restoration: Analysis, Strategies, Policies and Experimental Assessment

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Executive Summary

A connection spanning, for example, several countries crosses multiple optical backbone networks, each one controlled by different administrators or operators. In this context, the interworking of these networks is thus necessary to set up end-to-end optical connections. A key issue when delivering such optical services is the use of efficient and fast restoration strategies to recover a connection disruption. To this end, there are several issues and policies that a network operator should address, such as interdomain failure information exchange and the Point of Repair (PoR) placement problem.

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