Protocol data unit: Difference between revisions

Revision as of 09:33, 31 August 2022

Revision as of 11:58, 6 September 2022

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Given a context pertaining to a specific OSI layer, ''PDU'' is sometimes used as a synonym for its representation at that layer.

===Internetwork packet exchange (IPX)===

* The [[Transport layer]] PDU is the [[Internetwork_Packet_Exchange|SPX packet]] for SPX on top of IPX.

* The [[Network layer]] PDU is the [[Internetwork_Packet_Exchange|IPX packet]] for IPX.

* The [[link layer]] PDU is the [[Frame (networking)|frame]].

===Internet protocol suite===

Protocol data units for the [[Internet protocol suite]] are:

*The [[transport layer]] PDU is the [[TCP segment]] for TCP, and the datagram for UDP.

*The [[Internet layer]] PDU is the [[Network packet|packet]].

*The [[link layer]] PDU is the [[Frame (networking)|frame]].