IEEE 802.1Qay Approved for Final Phase of Ratification
May 3, 2009 // Published as a news service by IHS
The Institute of Electrical and Electronics Engineers (IEEE) approved IEEE P802.1Qay, which adapts Ethernet technology to the role of providing carrier-class packet transport networks, to enter the final phase of ratification.
It will be sent to the standards board for a final review before being approved as a standard, according to IEEE.
IEEE P802.1Qay - IEEE Standard for Local and Metropolitan Area Networks - Virtual Bridged Local Area Networks - Amendment: Provider Backbone Bridge Traffic Engineering defines provider backbone bridge traffic engineering (PBB-TE), which is a technology that enables service providers to set up traffic engineered paths across a carrier Ethernet network.
The standard also provides the ability to organize the traffic engineered path into service provider-defined linear protection groups to provide 1:1 resiliency.
PBB-TE is based on layered virtual local area network (LAN) tags and MAC-in-MAC encapsulation as defined in IEEE 802.1ah - PBB.
By turning off the Ethernet's spanning tree and media access control address-flooding and learning characteristics, PBB-TE enables the Ethernet to evolve into an Ethernet transport resource layer, capable of replacing synchronous optical networking/synchronous digital hierarchy as the data layer within next generation transport architectures, according to IEEE.
IEEE P802.1Qay is sponsored by the IEEE 802 Standards Committee of the IEEE Computer Society.
Source: Institute of Electrical and Electronics Engineers Standards Association (IEEE-SA).