Mechanism of multiprotocol label switching for forwarding packets & performance in virtual private network

Multiprotocol Label Switching (MPLS) is widely used and recognized as a tunneling technology that is used by many enterprises. This paper focuses on identifying the appropriate technology, which can be used by organizations as their core network technology for ensuring a consistent and protected communication across the WAN link. This technology provides a mechanism for forwarding packets for any network protocol and explores to overwhelm some of the IP based networks limitations. Because packet forwarding in MPLS is based only in label switching, it is faster than IP. In this paper we present a Multiprotocol Label Switching advantages, components, usage architecture. Further presents the Multiprotocol Label Switching services and compare MPLS with Frame relay in virtual private network through real experiment.