As previously mentioned, MPLS Layer 3 VPNs have a number of significant advantages for service providers and enterprises alike. These advantages include the following:
Disadvantages of MPLS Layer 3 VPNs include the following:
Now that you understand the main advantages and disadvantages of MPLS Layer 3 VPNs, it is time to move on to a discussion of their operation.
MPLS Layer 3 VPNs Overview |
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