TCP & IP Data Layer

One of the 2 Alternate layers of the TCP & IP Link Layer found in the TCP & IP 5 layered model along with TCP & IP Physical Layer.

Works with how data is formatted. Primarily through Encapsulation and Addressing

Encapsulation Protocols

https://www.ccnahub.com/ip-fundamentals/understanding-data-link-layer-encapsulation/ There are several encapsulation protocols all used for different types of cables. The noteworthy protocols are:

• PPP
• HDLC
• Frame Relay Protocol
• Ethernet Protocol