View source for IEEE 802.1D

{{Short description|Standard which includes bridging, Spanning Tree Protocol and others}}

'''IEEE 802.1D''' is the [[Ethernet]] [[MAC bridge]]s standard which includes [[Bridging (networking)|bridging]], [[Spanning Tree Protocol]] and others. It is standardized by the [[IEEE 802.1]] working group.  It includes details specific to linking many of the other 802 projects including the widely deployed [[802.3]] (Ethernet), [[802.11]] (Wireless LAN) and [[802.16]] (WiMax) standards.

Bridges using [[virtual LAN]]s (VLANs) have never been part of 802.1D, but were instead specified in separate standard, [[IEEE 802.1Q|802.1Q]] originally published in 1998.

By 2014, all the functionality defined by IEEE 802.1D has been incorporated into either [[IEEE 802.1Q|IEEE 802.1Q-2014]] (Bridges and Bridged Networks) or IEEE 802.1AC (MAC Service Definition).  802.1D is expected to be officially withdrawn in 2022.<ref>{{cite web|url=https://grouper.ieee.org/groups/802/1/files/public/docs2020/admin-draft-liaison-template-8021D-withdrawal-1120-v01.pdf|title=Withdrawal of IEEE Std 802.1D-2004|date=10 November 2020|website=[[IEEE]]|access-date=13 September 2023}}</ref>{{needs update|date=May 2024}}

Publishing history:

* 1990&nbsp;— Original publication (802.1D-1990).
* 1993&nbsp;— standard ISO/IEC 10038:1993.
* 1998&nbsp;— Revised version (802.1D-1998, ISO/IEC 15802-3:1998), incorporating the extensions [[IEEE 802.1p|P802.1p]], P802.12e, 802.1j-1996 and 802.6k-1992.
* 2004&nbsp;— Revised version (802.1D-2004), incorporating the extensions 802.11c-1998, 802.1t-2001, [[802.1w|802.1w-2001]], and removing the original [[Spanning Tree Protocol]], instead incorporating the [[Rapid Spanning Tree Protocol]] (RSTP) from [[802.1w|802.1w-2001]].
* Amendments to 802.1D-2004:
** 2004&nbsp;— Small amendment (802.17a-2004) to add in [[802.17]] bridging support.<ref>[https://ieeexplore.ieee.org/document/1355861 802.17a-2004]</ref>
** 2007&nbsp;— Small amendment (802.16k-2007) to add in [[802.16]] bridging support.<ref>[https://ieeexplore.ieee.org/document/4293121 802.16k-2007]</ref>
* 2012&nbsp;— Shortest Path Bridging ([[IEEE 802.1aq|IEEE 802.1aq-2012]], amendment to 802.1Q-2011).

==See also==
*[[Multiple Spanning Tree Protocol]]
*[[Spanning Tree Protocol]]
*[[TRILL]]{{snd}}Transparent Interconnection of Lots of Links

==References==
{{reflist}}
{{refbegin|}}
*[https://ieeexplore.ieee.org/document/1309630 802.1D-2004 - IEEE Standard for Local and metropolitan area networks: Media Access Control (MAC) Bridges]
*[https://web.archive.org/web/20070815225446/http://standards.ieee.org/cgi-bin/status?Designation:%20802.1D 802.1D Status]
{{refend}}

{{IEEE standards}}

[[Category:IEEE 802|IEEE 802.01D]]
[[Category:Ethernet standards]]


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