MPLS-TP Linear Protection

This document describes mechanisms for linear protection of Multi- Protocol Label Switching Transport Profile (MPLS-TP) Label Switched Paths (LSP) and Pseudowires (PW) on multiple layers. Linear protection provides a fast and simple protection switching mechanism, that is especially optimized for a mesh topology. It provides a clear indication of the protection status. The mechanisms are described both at the architectural level as well as providing a protocol that is used to control and coordinate the protection switching.