Explain what is Protocol Data Unit?

Submitted by: Administrator
LAN uses different ways of communicating. In some ways (like ETHERNET) data link layer is divided into two parts MAC and LLC (Logical Link Control).At LLC the data is known as Protocol Data Unit. It has 4 fields DSAP, SSAP, Control, Upper data layer.Its main function is to control the flow and error.
Submitted by: Administrator

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