Network Access Layer Protocol

The major duties of the network access layer are

1. For receiving an framing and IP datagram it into a stream of bits (1's and 0's) for physical transmission of data
2. It Specifying the MAC address of the machine
3. Ensuring in which the stream of bits which make up the frame have been accurately received through calculating a CRC (Cyclic Redundancy Checksum) jellybean count
4. Specifying the access techniques to the physical networks, like as Token-passing for token ring, FDDI (fiber distribution data distribution) and polling for IBM Mainframes
5. Specifying the connector, the physical media, timing rules electrical and signaling

A few of the technologies used to implement the network access layers are

1. LAN-oriented protocols
2. Ethernet (thin coaxial cable, thick coaxial cable and twisted-pair cable)
3. Token Ring
4. ARCnet
5. WAN - Oriented protocols
6. Point-to-Point protocol(PPP)
7. X.25
8. Frame Delay