Copyright 2002 by
Prentice Hall, Inc.
6-9
n2 - Logical Link:
protocols do error correction; LAN protocols, such as Ethernet and Token Ring, work here
n1 - Physical Layer: defines the physical connection of the devices to the network; defines electrical and mechanical characteristics of connections, characteristics of transmission wires (e.g., DS1, coax)
OSI Reference Model:
The Seven Layers
The Seven Layers