4.4. Mesh Restoration
The previous sections described two fundamental protection concepts, that is, linear protection and ring protection. In the course of this, it was seen that specific techniques were applicable to general mesh connected networks, that is, virtual 1:N SNC protection, software-defined BLSR, and p-cycles. In this section, mesh network based restoration is described. With mesh restoration, connections are not individually protected, but adequate bandwidth is provisioned in the network to reroute connections in the event of failures. This type of restoration is natural to consider in newer mesh networks with a distributed control plane. In the following, we first examine the potential bandwidth efficiency of in mesh restoration. ...
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