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Layer 2 VPN Architectures by Anthony Chan, Dmitry Bokotey, Carlos Pignataro, Wei Luo

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Chapter 2. Pseudowire Emulation Framework and Standards

This chapter covers the following topics:

Pseudowire emulation overview

Pseudowire emulation standardization

Chapter 1, “Understanding Layer 2 VPNs,” introduced Layer 2 virtual private network (VPN) concepts and the problems it is designed to solve. It also highlighted the technology and deployment differences between Layer 2 VPNs and Layer 3 VPNs.

Among the new packet-based Layer 2 VPN architectures, pseudowire emulation forms the foundation for transporting Layer 2 traffic across IP/Multiprotocol Label Switching (MPLS) networks. This chapter describes the general architecture for pseudowire emulation and networking solutions proposed in standardization organizations that sometimes ...

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