Appendix A. VPLS and IPLS Layer 2 VPNs

Pseudowire technologies such as Layer Two Tunneling Protocol version 3 (L2TPv3) and Any Transport over MPLS (AToM) enable service providers to converge their existing legacy (ATM, Frame Relay, and leased line) and IP/Multiprotocol Label Switching (MPLS) networks; these technologies also enable them to offer point-to-point Ethernet services.

A Virtual Private LAN Service (VPLS) takes advantage of point-to-point pseudowire technologies to enable multipoint emulated Ethernet LAN services over a metropolitan-area network (MAN) or wide-area network (WAN). An IP-only Private LAN Service (IPLS) provides similar multipoint emulated Ethernet LAN service but for IP-only traffic.

This appendix discusses the operation of VPLS and IPLS.


Part I: Understanding VPN Technology

What Is a Virtual Private Network?

Part II: Site-to-Site VPNs

Designing and Deploying L2TPv3-Based Layer 2 VPNs

Designing and Implementing AToM-Based Layer 2 VPNs

Designing MPLS Layer 3 Site-to-Site VPNs

Advanced MPLS Layer 3 VPN Deployment Considerations

Deploying Site-to-Site IPsec VPNs

Scaling and Optimizing IPsec VPNs

Part III: Remote Access VPNs

Designing and Implementing L2TPv2 and L2TPv3 Remote Access VPNs

Designing and Deploying IPsec Remote Access and Teleworker VPNs

Designing and Building SSL Remote Access VPNs (WebVPN)

Part IV: Appendixes

Designing and Building SSL Remote Access VPNs (WebVPN)

Appendix B. Answers to Review Questions

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Comparing, Designing, and Deploying VPHs
Comparing, Designing, and Deploying VPNs
ISBN: 1587051796
EAN: 2147483647
Year: 2007
Pages: 124
Authors: Mark Lewis
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