Protocol data unit: Difference between revisions

Revision as of 18:19, 15 November 2006

Revision as of 19:37, 28 November 2006

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: Source: from [[Federal Standard 1037C]]

It is sometimes used as a synonym for the more common term [[packet]].

PDU's are relevant in relation to one of the first 4 layers of the [[OSI model]] as folows :

#The [[Layer 1]] PDU's are the [[streams]]

#The [[Layer 2]] PDU's are the [[frames]]

#The [[Layer 3]] PDU's are the [[packets]]

#The [[Layer 4]] PDU's are the [[fragments]]

Given a context pertaining to a specific layer PDU is sometimes used as a synonym for it's representation at that layer.

In [[telecommunication]]s, the term '''packet data unit''' ('''PDU''') has the following meaning: