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IEEE 802.1Q

Local and metropolitan area networks— Virtual Bridged Local Area Networks Amendment 12: Forwarding and Queuing Enhancements for Time-Sensitive Streams

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Organization: IEEE
Publication Date: 9 December 2009
Status: inactive
Page Count: 87
scope:

Insert the following text at the end of 1.1, renumbering the list items and NOTEs as necessary:

This standard allows bridges to provide performance guarantees for time-sensitive (i.e., bounded latency and latency variation) loss-sensitive real-time audio video (AV) data stream transmission (AV traffic). It specifies priority regeneration and controlled bandwidth queue draining algorithms. Virtual Local Area Network (VLAN) tag encoded priority values are allocated, in aggregate, to segregate frames among queues that support AV traffic and queues that support non-AV traffic, allowing simultaneous support of both AV traffic and other bridged traffic over and between wired and wireless Local Area Networks (LANs). To this end, it.

a) Defines status parameters that allow the boundaries of a Stream Reservation Protocol (SRP-see Clause 351) domain (6.6.4) to be identified and maintained

b) Specifies how the priority information in frames received at SRP domain boundary ports is regenerated

NOTE 1-The priorities in frames transmitted from outside an SRP domain to a Bridge inside an SRP domain are remapped in order to ensure that traffic that is not associated with a reservation does not disrupt traffic that is associated with a reservation. Hence, traffic entering an SRP domain that uses priority code point values associated with reserved traffic classes will be re-mapped to priority code point values that are not associated with reserved traffic classes.2

c) Specifies how priority information is used to determine the traffic classes to be used for timesensitive streams

d) Defines a credit-based shaper algorithm to shape traffic in accordance with stream reservations

NOTE 2-The credit-based shaper algorithm operates on the outbound queues; the mechanisms specified for the support of time-sensitive AV traffic do not involve any form of ingress metering or policing.

1Clause 35 is defined in IEEE P802.1QatTM [B31] that was a draft standard under development at the time of publication.

2Notes in text, tables, and figures are given for information only and do not contain requirements needed to implement the standard.

Document History

September 24, 2020
Local and Metropolitan Area Networks— Bridges and Bridged Networks Amendment 34: Asynchronous Traffic Shaping
Abstract: Procedures and managed objects for Bridges and end stations to perform Asynchronous Traffic Shaping over full-duplex links with constant bit data rates are specified in this amendment to...
August 9, 2020
Draft Standard for Local and metropolitan area networks — Link-local Registration Protocol
This standard specifies protocols, procedures, and managed objects for a Link-local Registration Protocol (LRP) to replicate a registration database from one end to the other of a point-to-point link...
June 4, 2020
Local and Metropolitan Area Networks— Bridges and Bridged Networks Amendment 33: YANG Data Model for Connectivity Fault Management
Abstract: A YANG data model that supports configuration, status reporting, and monitoring for Connectivity Fault Management (CFM) for Two-Port MAC Relays, Customer VLAN Bridges, and Provider Bridges...
April 18, 2020
Draft Standard for Local and metropolitan area networks - Link-local Registration Protocol
This standard specifies protocols, procedures, and managed objects for a Link-local Registration Protocol (LRP) to replicate a registration database from one end to the other of a point-to-point link...
March 21, 2019
Recommended Practice for Network Reference Model and Functional Description of IEEE 802® Access Network
This recommended practice specifies an access network (which connects terminals to their access routers) utilizing technologies based on the family of IEEE 802 standards. An access network reference...
January 1, 2019
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)
Abstract: Extensions to the Virtual Station Interface (VSI) Discovery and Configuration Protocol (VDP) to support using the protocol between an end station and a device doing...
June 14, 2018
Local and Metropolitan Area Networks - Bridges and Bridged Networks Amendment 31: Stream Reservation Protocol (SRP) Enhancements and Performance Improvements
Enhancements to the configuration of time-sensitive streams are provided by this amendment to IEEE Std 802.1Q-2018.
June 14, 2018
Local and metropolitan area networks-Bridges and Bridged Networks-Amendment 30: YANG Data Model
A YANG data model in support of configuration and operational status information for a subset of Bridging capabilities is provided in this amendment to IEEE Std 802.1Q™-2018.
May 7, 2018
Local and metropolitan area networks-Bridges and Bridged Networks
This standard specifies Bridges that interconnect individual LANs, each supporting the IEEE 802 MAC Service using a different or identical media access control method, to provide Bridged Networks and...
September 28, 2017
Local and metropolitan area networks - Frame Replication and Elimination for Reliability
This standard specifies procedures, managed objects, and protocols for bridges and end systems that provide identification and replication of packets for redundant transmission, identification of...
May 18, 2017
Local and metropolitan area networks-Bridges and Bridged Networks-Amendment 29: Cyclic Queuing and Forwarding
The use of traffic scheduling and per-stream filtering and policing to support cyclic queuing and forwarding are described in this amendment to IEEE Std 802.1Q-2014.
February 14, 2017
Local and metropolitan area networks - Bridges and Bridged Networks - Amendment 28: Per-Stream Filtering and Policing
Enhancements to the forwarding process that support per-stream filtering and policing are provided in this amendment to IEEE Std 802.1Q-2014.
November 5, 2016
Draft Standard for Local and metropolitan area networks - Media Access Control (MAC) Security Amendment 3: Ethernet Data Encryption devices
Change 1.1 as follows: The scope of this standard is to specify provision of connectionless user data confidentiality, frame data integrity, and data origin authenticity by media access independent...
August 3, 2016
Draft Standard for Local and metropolitan area networks-Media Access Control (MAC) Service Definition
The scope of this standard is to define the Media Access Control (MAC) Service provided by all IEEE 802® MACs, and the Internal Sublayer Service (ISS) provided within MAC Bridges, in abstract terms...
June 30, 2016
Local and metropolitan area networks-Bridges and Bridged Networks-Amendment 26: Frame Preemption
This document specifies a procedure for the determination of the total cadmium content of coal. This procedure has not been validated with coals that spontaneously ignite. Prior to use with such...
June 30, 2016
Local and metropolitan area networks - Bridges and Bridged Networks - Amendment 27: Enhancements to Bridging of IEEE 802.11 Media
A description is not available for this item.
December 5, 2015
Local and metropolitan area networks-Bridges and Bridged Networks-Corrigendum 1: Technical and editorial corrections
A description is not available for this item.
December 5, 2015
Local and metropolitan area networks-Bridges and Bridged Networks Amendment 25: Enhancements for Scheduled Traffic
Enhancements to the forwarding process that supports scheduled traffic is provided in this amendment to IEEE Std 802.1Q-2014.
September 3, 2015
Local and metropolitan area networks-Bridges and Bridged Networks Amendment 24: Path Control and Reservation
Introduction Insert the following paragraph and list items at the end of 1.3: This standard also specifies further protocol extensions, procedures, and managed objects to IS-IS for providing...
February 16, 2015
Local and metropolitan area networks - Bridges and Bridged Networks Amendment 23: Application Virtual Local Area Network (VLAN) Type, Length, Value (TLV)
Enhancements to the set of TLVs used by the Data Center Bridging eXchange protocol (DCBX) for the purpose of simplifying the management of networks utilizing Data Center Bridging (DCB) features are...
November 3, 2014
Local and metropolitan area networks-Bridges and Bridged Networks
This standard specifies Bridges that interconnect individual LANs, each supporting the IEEE 802 MAC Service using a different or identical media access control method, to provide Bridged Networks and...
July 30, 2014
Local and metropolitan area networks-Bridges and Bridged Networks
This standard specifies Bridges that interconnect individual Local Area Networks (LANa), each supporting the IEEE 802 MAC service using a different or identical media access control method, to...
March 27, 2014
Local and metropolitan area networks-Media Access Control (MAC) Bridges and Virtual Bridged Local Area Networks— Amendment 22: Equal Cost Multiple Path (ECMP)
Routing algorithms and relay behavior supporting equal cost multipath forwarding in shortest path bridged VLANs are specified in this amendment to IEEE Std 802.1Q.
October 19, 2012
Local and metropolitan area networks-Media Access Control (MAC) Bridges and Virtual Bridged Local Area Networks-Corrigendum 2: Technical and editorial corrections
A description is not available for this item.
May 14, 2012
Local and metropolitan area networks-Media Access Control (MAC) Bridges and Virtual Bridged Local Area Networks-Amendment 21: Edge Virtual Bridging
This amendment to IEEE Std 802.1Q-2011 specifies protocols, procedures, and managed objects that — Provide for the discovery, configuration, and control of a pair of direct-attached limited-function...
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