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IEEE P802.1s/D14.1

IEEE Draft Amendment 3 to 802.1Q Virtual Bridged Local Area Networks: Multiple Spanning Trees - IEEE Draft Amendment to IEEE Std 802.1Q-1999 (Superseded by 802.1S-2002) (Incorporated Into 802.1Q-2003)

Standard by IEEE, 2002

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About This Item

Legal Notices*

IEEE P802.1s/D14.1 is a draft amendment to the IEEE 802.1Q framework for virtual bridged local area networks, focused on multiple spanning trees. As a communication and networking technical document, it addresses how bridged LANs can support more efficient path selection and better traffic distribution across a network. IEEE P802.1s/D14.1 is relevant for understanding the development of spanning tree behavior before it was superseded and incorporated into later IEEE 802.1Q material.

About IEEE P802.1s/D14.1

This draft amendment extends the 802.1Q virtual bridging model by defining multiple spanning trees rather than relying on a single tree for all traffic. In practical terms, it supports more controlled forwarding behavior in bridged Ethernet networks and helps reduce unnecessary blocking of links. IEEE P802.1s/D14.1 is part of the IEEE standards development process and reflects the technical requirements that led to the later IEEE 802.1S-2002 and incorporation into IEEE Std 802.1Q-2003.

Where is IEEE P802.1s/D14.1 used?

IEEE P802.1s/D14.1 is most relevant in Ethernet switching environments where virtual bridging and spanning tree behavior must be coordinated across multiple links or VLAN-related traffic paths. It may be used by network designers, equipment vendors, and integration teams working with campus networks, enterprise switching infrastructure, or other bridged LAN deployments. The document is useful when evaluating how multiple spanning trees affect forwarding topology, redundancy planning, and link utilization in communication networks.

Importance in practice

For network implementation and procurement, IEEE P802.1s/D14.1 provides a clear technical reference for how multiple spanning tree behavior was specified during development of the 802.1Q family. That matters when comparing equipment capabilities, reviewing legacy designs, or tracing feature compliance in bridged Ethernet systems. It also helps reduce ambiguity in testing and configuration by defining how separate traffic instances can map to different spanning trees, supporting more consistent network operation and lower risk of design mismatch.

  • Draft amendment to IEEE 802.1Q
  • Multiple spanning tree behavior
  • Virtual bridged local area networks
  • Bridged Ethernet forwarding context
  • Superseded and later incorporated into 802.1Q
SKU: e4309a879aaf

  • Publication Date: 2002

  • Standard Status: Inactive

  • Publisher: IEEE

  • Subject: Communication, Networking and Broadcast Technologies

  • Official IEEE: Doi link
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