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In addition to connectivity services, service providers are continually struggling to increase service offerings and differentiated end-to-end IP services with cutting edge technologies. This fast-shifting economical growth is heavily dependent on their ability to deliver managed network services along with traditional connectivity services.
Multiprotocol Label Switching (MPLS) is a widely used core transport technology that is used to carry Layer 2 and Layer 3 services that transport over a packet-switched network (PSN).
MPLS VPN is a key service solution that provides end-to-end QoS, enabling efficient utilization of existing networks to build highly efficient, scalable, next-generation networks.
This chapter provided a basic overview of the MPLS architecture and briefly explained how it works, as well as a comparison on MPLS VPN and IPsec VPN solutions and deployment scenarios.
The chapter focused mainly on MPLS VPN architecture and the two basic types of trusted VPN deployments. The chapter covered details on Cisco Layer 2 VPN (L2VPN) and Layer 3 VPN (L3VPN) solution architecture and provided basic deployment and implementation guidelines.
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