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What is the difference between Service Data Unit and Packet Data Unit?

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What is the difference between Service Data Unit and Packet Data Unit?
posted Dec 9, 2013 by anonymous

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1 Answer

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.Service Data Unit
• Set of data sent by a user of the services of a given layer.
• Transmitted to the peer service user semantically unchanged.

Protocol Data Unit
• Unit of data exchanged between peer layers in a network.
• May contain control information, addressing, and data

answer Dec 9, 2013 by Giri Prasad
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