In this research service, MPLS/IP VPN means VPN services enabled over a carrier’s private MPLS network. VPN service is a site-to-site connection, with the service provider managing the end-to-end network. A private IP VPN uses the infrastructure of one network provider. A public IP VPN (or Internet VPN) carries data across multiple and nonspecific IP backbone infrastructures. Because a private IP VPN carries traffic across a single infrastructure, the provider can deliver greater standardized security, manageability, and connectivity service than a public service that relies on disparate network infrastructures. Because traffic is fully managed end to end, private IP VPNs also can offer greater guarantees for quality of service (QOS), supported by service-level agreements (SLAs).
This study includes analysis and market forecasts for layer 3 VPN services that are provisioned for site-to-site connectivity, for which the service provider manages the routing tables.