IEEE Std 802.1Qcy-2019 PDF

Full title and description

IEEE Standard for Local and Metropolitan Area Networks--Bridges and Bridged Networks Amendment 32: Virtual Station Interface (VSI) Discovery and Configuration Protocol (VDP) Extension to Support Network Virtualization Overlays Over Layer 3 (NVO3). This amendment specifies extensions to the Virtual Station Interface (VDP) so it can be used between an end station and a device performing encapsulation/decapsulation for NVO3; it adds new format types (for example IP address formats) and enhances the indication of migration events.

Abstract

This amendment (IEEE Std 802.1Qcy-2019) updates IEEE Std 802.1Q by defining VDP message extensions and related protocol elements to support Network Virtualization Overlays over Layer 3 (NVO3). The changes enable VDP usage where overlay encapsulation/decapsulation is performed by an intermediary device (NVE/tNVE/nNVE), introduce additional format types such as IP address representations, and improve signaling for station migration events to support virtualized data‑center and overlay networking scenarios.

General information

• Status: Superseded standard / amendment (incorporated into later rollups of IEEE 802.1Q).
• Publication date: 4 June 2019 (Board approval 21 March 2019).
• Publisher: Institute of Electrical and Electronics Engineers (IEEE).
• ICS / categories: Networking — ICS 35.110 (local and metropolitan area networks / networking).
• Edition / version: IEEE Std 802.1Qcy-2019 (Amendment 32 to IEEE Std 802.1Q-2018).
• Number of pages: Distributor listings report approximately 35–38 pages (IEEE product listing shows 35 pages; other distributors list 38 pages).

Scope

This amendment extends the Virtual Station Interface (VDP) Discovery and Configuration Protocol so it may be used between an end station and a device that provides encapsulation/decapsulation for Network Virtualization Overlays over Layer 3 (NVO3). It defines new VDP format types (including IP address formats), adds terminology and definitions for NVE/tNVE/nNVE and VNI usage in VDP contexts, and enhances migration event indication to support virtualized tenant station mobility and interoperability in overlay deployments. The amendment was prepared as part of the IEEE 802.1 WG and adopted into the ISO/IEC/IEEE roll‑up for 802.1Q.

Key topics and requirements

• VDP message and data format extensions to carry NVO3‑relevant identifiers (for example IP address formats and VNI information).
• Definitions and terminology for Network Virtualization Edge (NVE), tenant NVE (tNVE), network NVE (nNVE), Virtual Network Instance (VNI) and related concepts to align VDP with IETF NVO3 frameworks.
• Enhanced migration event signaling to indicate virtual station moves or changes when overlays are terminated/anchored at separate devices.
• Interoperability considerations to enable VDP use between end stations and separate encapsulation/decapsulation devices while maintaining compatibility with existing IEEE 802.1Q bridge behavior.
• Adoption pathway into the combined ISO/IEC/IEEE 8802‑1Q series (amendment captured as ISO/IEC/IEEE 8802‑1Q:2020/Amd.3:2021 in joint publications).

Typical use and users

Typical users are network architects, switch and network‑device vendors, data‑center operators, and implementers of EVB/NVO3 solutions who need to support VSI/VDP-based discovery and configuration when overlay encapsulation/decapsulation is performed by dedicated NVEs or gateway devices. Developers implementing conformance to IEEE 802.1Q and related EVB/NVO3 features will consult this amendment to support interoperability in Ethernet virtualization scenarios.

Related standards

This amendment amends IEEE Std 802.1Q-2018 (Bridges and Bridged Networks) and has been incorporated in later roll‑ups of the 802.1Q family (for example the 802.1Q-2022 roll‑up). It is also represented in the joint ISO/IEC/IEEE 8802‑1Q series as an amendment addressing VDP extension for NVO3 overlays. Related IEEE 802.1 amendments (Qcc, Qcr, Qcx, etc.) cover other TSN, YANG, and data‑modeling topics in the same Bridges and Bridged Networks family.

Keywords

VDP, VSI, Virtual Station Interface, NVO3, Network Virtualization Edge (NVE), VNI, overlay networking, IEEE 802.1Q amendment, EVB, data center virtualization.

FAQ

Q: What is this standard?

A: IEEE Std 802.1Qcy‑2019 is Amendment 32 to IEEE Std 802.1Q (2018) that defines extensions to the Virtual Station Interface (VDP) Discovery and Configuration Protocol to support Network Virtualization Overlays over Layer 3 (NVO3).

Q: What does it cover?

A: It covers new VDP message format types (including IP address formats), updated terminology and definitions for NVE/tNVE/nNVE and VNI usage, and improved migration-event signaling so VDP can be used between end stations and separate encapsulation/decapsulation devices in overlay deployments.

Q: Who typically uses it?

A: Network equipment vendors (switch, NVE/gateway manufacturers), data‑center architects, virtualization and overlay networking implementers, and standards engineers working on IEEE 802.1Q interoperability and EVB/NVO3 solutions.

Q: Is it current or superseded?

A: IEEE 802.1Qcy‑2019 was published on 4 June 2019 and is an approved amendment; however, its content has been incorporated into later roll‑ups of IEEE 802.1Q (the 802.1Q family is periodically rolled up into updated base standards such as 802.1Q-2022). The amendment itself is listed as superseded/incorporated in the roll‑up documents. Users should consult the latest IEEE 802.1Q roll‑up (and joint ISO/IEC/IEEE publications) for the current consolidated text.

Q: Is it part of a series?

A: Yes — it is one amendment in the IEEE Std 802.1Q series (the Bridges and Bridged Networks suite). The 802.1Q standard is maintained via amendments (e.g., 802.1Qcc, 802.1Qcr, 802.1Qcy, etc.) that are later incorporated into consolidated roll‑ups of 802.1Q.

Q: What are the key keywords?

A: VDP, VSI, NVO3, NVE, VNI, overlay, EVB, migration events, IEEE 802.1Q.