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802.1Qbh - Bridge Port Extension

The full title of this PAR is "IEEE Standard for Local and Metropolitan Area Networks---Virtual Bridged Local Area Networks - Amendment: Bridge Port Extension.".

This amendment specifies protocols, procedures, and managed objects to support Port Extension. A Port Extender attaches to a MAC port of an 802.1Q bridge and provides additional MAC ports that are logically ports of the 802.1Q bridge to which it is attached (i.e. the "Controlling Bridge"). The protocols, procedures, and managed objects specified in this amendment are expected to specify new behavior in bridges that support port extension as well as the behavior of Port Extenders themselves. In addition, the protocols, procedures, and managed objects specified in this amendment support the cascading of Port Extenders. To the extent technically reasonable, all frame filtering and relay functions remain in the Controlling Bridge. Use of a Service Virtual LAN Tag (S-TAG) for Multichannel capability as being defined in Edge Virtual Bridging is envisaged to achieve this objective. A new on-the-wire indication (e.g. a new tag) is envisioned to support remote replication for purposes including frame flooding and group address support.

The purposes of this project include: - To reduce the management cost of networks comprising large number of bridges (such as those commonly found in a data center environments) through significant reduction in both the number of devices to be managed and the management traffic required. - To decrease total cost of ownership by reducing initial capital expenditure along with management and operational costs.

Data center management today is highly complex. This complexity may be reduced by aggregating the more complex bridging functions onto fewer bridges and by collapsing bridge layers from a management perspective. The EVB project is defining reflective relay and multichannel capabilities. The Port Extension project extends these capabilities by providing a remote replication service. In addition, a Port Extender device will be specified that utilizes the EVB capabilities and remote replication service. This is intended to reduce management complexity by aggregating the more complex bridging functions onto fewer bridges. The Port Extender device may be used to collapse layers in the network resulting in reduced capital expenditure, points of management, and management traffic and thus reducing total cost of ownership.

Status
StatusPAR approved December 9th, 2009; PAR withdrawn September 10th, 2011. See 802.1BR.
EditorJoe Pelissier

Archive
DateDocument
21 Jan 2010802.1bh, Draft 0.0
15 Mar 2010802.1bh, Draft 0.1
31 Mar 2010802.1bh, Draft 0.2
05 May 2010802.1bh, Draft 0.2 -ln
10 Jun 2010802.1bh, Draft 0.2 proposed comment dispositions
24 Jun 2010802.1bh, Draft 0.3
12 Jul 2010802.1bh, Draft 0.3 proposed comment dispositions
24 Aug 2010802.1qbh, Draft 0.4
25 Aug 2010802.1qbh, Draft 0.4 with changebars
21 Oct 2010802.1qbh, Draft 0.5 with changebars
21 Oct 2010802.1qbh, Draft 0.5
23 Dec 2010802.1qbh, Draft 1.0 with changebars
23 Dec 2010802.1qbh, Draft 1.0
23 Dec 2010802.1qbh, Draft 1.0 PE
23 Dec 2010802.1qbh, Draft 1.0 lldp
12 Jan 2011802.1bh, Draft 1.0 -pds
02 Feb 2011802.1bh, Draft 1.0 comment dispositions
02 Feb 2011802.1qbh, Draft 1.1 with changebars
02 Feb 2011802.1qbh, Draft 1.1
02 Feb 2011802.1qbh, Draft 1.1 PE
02 Feb 2011802.1qbh, Draft 1.1 lldp
13 Mar 2011802.1bh, Draft 1.1 proposed comment dispositions
13 Mar 2011802.1bh, Draft 1.1 proposed comment dispositions
15 Mar 2011802.1bh, Draft 1.1 proposed comment dispositions
01 Apr 2011802.1bh, Draft 1.1 comment dispositions
01 Apr 2011802.1qbh, Draft 2.0
10 May 2011802.1bh, Draft 2.0 proposed comment dispositions
17 Jun 2011802.1bh, Draft 2.0 comment dispositions
17 Jun 2011802.1qbh, Draft 2.1
20 Jun 2011802.1qbh, Draft 2.1 with changebars
19 Jul 2011802.1Qbh, Draft 2.1 proposed comment dispositions
01 Sep 2011802.1Qbh, Draft 2.1 comment dispositions

Presentations
DateDocument
21 Jan 2010Presentation bh-pelissier-draft00intro-0110.pdf
17 Mar 2010Presentation bh-pelissier-control-overview-0310-v02.pdf
13 Apr 2010Presentation bh-pelissier-control-overview-0410.pdf
26 Apr 2010Presentation bh-pelissier-control-overview-0410-v02.pdf
26 May 2010Presentation bh-pelissier-editors-report-0510-v02.pdf
26 May 2010Presentation bh-pelissier-multicast-overview-0510.pdf
12 Jul 2010Presentation bh-pelissier-d0-3-discussion-0710.pdf
12 Jul 2010Presentation bh-pelissier-editors-report-0710.pdf
13 Sep 2010Presentation bh-bottorff-arch-0810-v1.pdf
15 Sep 2010Presentation bh-pelissier-genericbridges-0910.pdf

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Last modified by jmesseng, at 7:52PM on Thu, 15 Sep 2011