IEEE 802.1D

By 2014, all the functionality defined by IEEE 802.1D has been incorporated into either 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(Bridges and Bridged Networks) or IEEE 802.1AC (MAC Service Definition). 802.1D is expected to be officially withdrawn in 2022.^{[1][needs update]}

Publishing history:

• 1990 — Original publication (802.1D-1990).
• 1993 — standard ISO/IEC 10038:1993.
• 1998 — Revised version (802.1D-1998, ISO/IEC 15802-3:1998), incorporating the extensions P802.1p, P802.12e, 802.1j-1996 and 802.6k-1992.
• 2004 — Revised version (802.1D-2004), incorporating the extensions 802.11c-1998, 802.1t-2001, 802.1w-2001, and removing the original Spanning Tree Protocol, instead incorporating the Rapid Spanning Tree Protocol (RSTP) from 802.1w-2001.
• Amendments to 802.1D-2004:
  • 2004 — Small amendment (802.17a-2004) to add in 802.17 bridging support.^[2]
  • 2007 — Small amendment (802.16k-2007) to add in 802.16 bridging support.^[3]
• 2012 — Shortest Path Bridging (IEEE 802.1aq-2012, amendment to 802.1Q-2011).

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