MPLS VPN

VPN : 

VPN is Virtual Private Network .i.e.  use of Shared infrastructure resources to provide remote network users with secure access to their private network.

Types of VPN Models:

1).Overlay Model

2). Peer-to-Peer Model

Overlay Model:  In this type of model connections are set up and maintained by the Service Provider. Although, the provider has no knowledge of  and does not participate in the customer’s routing infrastructure.

Peer-to-Peer Model: In this type of model , Service  Provider directly participates in routing the customer’s infrastructure. Routes from multiple customers are not keep separate. This may require customers to look at their networks.

In Next we go  for MPLS VPN......