MPLS speeds up network forwarding and is used to transmit various new services.
MPLS takes place between the data link layer and network layer in the TCP/IP protocol stack. MPLS supports label switching between multiple network protocols, as implied by its name. MPLS can use any Layer 2 media to transfer packets, but is not exclusive by any specific protocol on the data link layer.
MPLS is derived from the Internet Protocol version 4 (IPv4). The core MPLS technology can be extended to multiple network protocols, such as the Internet Protocol version 6 (IPv6), Internet Packet Exchange (IPX), Appletalk, DECnet, and Connectionless Network Protocol (CLNP). Multiprotocol in MPLS means that the protocol supports multiple network protocols.
The MPLS technology supports multiple protocols and services and improves data transmission security.