Chapter 11. Any Transport over MPLS (AToM)

In Chapter 10, “Implementing VPNs with Layer 2 Tunneling Protocol Version 3,” you were introduced to the configuration and benefits of implementing L2TPv3 in IP-enabled networks to deliver Layer 2 VPNs. In this chapter, you will be introduced to the configuration of Layer 2 VPN implementations in an MPLS-enabled network and how it has played an important role in service provider environments. This chapter covers the following topics:

• Introduction to Layer 2 VPNs

• Implementing AToM for like to like circuits

• Implementing AToM for any to any circuits

• Local switching