Understanding Layer 2 Virtual Private Networks (L2VPN) And Their Benefits
In the early 1980s, the Open System Interconnection (OSI) model was devised to outline the seven layers of network communication. It served as the early model for network communications and paved the way for modern Transmission Control Protocol/Internet Protocol (TCP/IP) systems, which were developed in the 1970s and upon which the 21st-century Internet is founded. Within the OSI model, Layer 2 specifically refers to how data links are set up and defines the data format on each network.
