MAC service data unit: Difference between revisions

Revision as of 09:23, 21 March 2009

Latest revision as of 17:22, 4 September 2024

(31 intermediate revisions by 19 users not shown)

Line 1:

{{Context|date=March 2024}}

'''MSDU''' stands for [[Medium Access Control|MAC]] Service Data Unit.

'''MAC service data unit''' ('''media access control service data unit''', '''MSDU''') is the [[service data unit]] in the [[IEEE 802]] reference model of network architecture. This data unit is exchanged at the interface between the [[media access control]] (MAC) sub-layer and the layer immediately above it, typically the (optional) [[logical link control]] (LLC) sub-layer.<ref>{{cite web |url=https://onlinedocs.microchip.com/oxy/GUID-4B3D771E-5647-4191-AD45-C897B0D23071-en-US-3/GUID-5B9485C1-5782-4C12-BC46-70914B0DFBC8.html |title=MAC Service Data Unit (MSDU) |access-date=2024-03-12 |publisher=[[Microchip Technology]]}}</ref><ref>{{cite web |url=https://support.accessagility.com/hc/wifi-glossary-msdu |title=MAC Service Data Unit (MSDU) |access-date=2024-03-12 |publisher=Access Agility}}</ref> The LLC and MAC sub-layers are collectively referred to as the [[data link layer]] (DLL).

==See Alsoalso==

The MSDU is that unit of data that is received from the [[Logical Link Control|LLC]] sub-layer which lies above the MAC sub-layer in a [[protocol stack]]. The LLC and MAC sub-layers are collectively referred to as the [[Data Link Layer|DLL]].

* [[MAC protocol data unit]]

[[MPDU]]s is the fragmented form of an MSDU.

[[File:Pdu and sdu.svg]]

==See Also==

* [[MPDU]]

* [[Packet segmentation]]

* [[Packet aggregation]]

==References==

{{Reflist}}

== External links ==

* [https://web.archive.org/web/20051102045243/http://standards.ieee.org/getieee802/download/802.16-2004.pdf 802.11 Wireless LAN IEEE standard]

* [http://www.patrickdenis.biz/blog/protocol-data-unit-pdu-service-data-unit-sdu/ Protocol Data Unit (PDU) / Service Data Unit (SDU)]

[[Category:Media Accessaccess Controlcontrol]]

[[Category:Media Access Control]]

{{telecommTelecomm-stub}}