VPRN (Virtual Private Routed Network) is a Multipoint-to-Multiponit Layer 3 VPN Service that connects multiple
branches in a single logical routed architecture over IP/MPLS network of a Service Provider. This is called Layer 3
VPNgenerally, but Alcatel-Lucent define this Layer 3 VPN as VPRN(Virtual Private Routed Network).
Different brances of a customer, pass through the IP/MPLS network of Service Provider and this Layer 3 VPN
infrastructure seems to the customer as their branches are connected to a single company Router.
Many different customer networks exist in this IP/MPLS network. And these are managed by Service Provider.
Each of the customer in IP/MPLS network does not know the other network and use the Service Provider managed
IP/MPLS network as their own. This provides indipendence to the customer and efficient usage of network to the
With VPRN, multiple sites of the customer can connect over the IP/MPLS Network of Service Provider. So, from the
customer perspective, the sites are connected to a Router.