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What is IEEE 802.1ah?
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IEEE 802.1ah is an amendment to the IEEE 802.1Q networking standard which adds support for Provider Backbone Bridges. It includes an architecture and a set of protocols for routing over a provider's network, allowing interconnection of multiple provider bridge networks without losing each customer's individually defined VLANs .
Mar 9, 2018 · The Institute of Electrical and Electronics Engineers (IEEE) 802.1ah PBB feature encapsulates or decapsulates end-user traffic on a Backbone Edge Bridge (BEB) at the edge of the Provider Backbone Bridged Network (PBBN).
Mar 9, 2005 · It will enable a Service Provider to scale the number of Service VLANs in a Provider Network by interconnecting the Service Virtual LANs, and provide for interoperability and consistent standards based management.
DateDocument09 Mar 200516 Mar 200517 Jul 200519 Aug 2005IEEE 802.1 is a working group of the IEEE 802 project of the IEEE Standards Association. It is concerned with: 802 LAN/MAN architecture; internetworking among 802 LANs, MANs and wide area networks; 802 Link Security; 802 overall network management; protocol layers above the MAC and LLC layers; LAN/MAN bridging and management.
StandardDescriptionStatus802.1B-1992LAN/MAN ManagementWithdrawn in 2004802.1k-1993 [2]Discovery and Dynamic Control of Event ...Withdrawn in 2004Superseded by 802.1D-1998802.1i-1995FDDI bridging (see ANSI X3T9.5)SupersededIEEE 802.1ah draft standard (IEEE802.1ah), also known as Provider Backbone Bridges (PBB), defines an architecture and bridge protocols for interconnection of multiple Provider Bridge Networks (PBNs - IEEE802.1ad QinQ networks).
IEEE 802.1ah draft standard (IEEE802.1ah), also known as Provider Backbone Bridges (PBB), defines an architecture and bridge protocols for interconnection of multiple Provider Bridge Networks (PBNs - IEEE802.1ad QinQ networks).
Periodically the amendments get merged into a revision of the main standard, e.g. 802.1ah and 802.1Qay are part of 802.1Q-2014. 802.1Q can be considered as many individual standards integrated into a single document. Clauses 6 through 9 give a general overview of the 802.1Q bridge architecture.
