An Architecture for Multi-Segment Pseudo Wire Emulation Edge-to-Edge
This document describes an architecture for extending pseudo wire emulation across multiple packet switched network segments. Scenarios are discussed where each segment of a given edge-to-edge emulated service spans a different provider's PSN, and where the emulated service originates and terminates on the same providers PSN, but may pass through several PSN tunnel segments in that PSN. It presents an architectural framework for such multi-segment pseudo wires, defines terminology, and specifies the various protocol elements and their functions.