Search results
802.1ad - Provider Bridges. This amendment to IEEE Std 802.1Q-1998 is intended to develop an architecture and bridge protocols, compatible and interoperable with existing Bridged Local Area Network protocols and equipment, to provide separate instances of the MAC services to multiple independent users of a Bridged Local Area Network in a manner that does not require cooperation among the users ...
IEEE 802.1ad. Not to be confused with IEEE 802.3ad, IEEE 802.11ad, or IEEE 802.11ac. IEEE 802.1ad is an amendment to the IEEE 802.1Q-1998 networking standard which adds support for provider bridges. It was incorporated into the base 802.1Q standard in 2011. [1] The technique specified by the standard is known informally as stacked VLANs or QinQ.
Dec 31, 2005 · This amendment enables a service provider to use the architecture and protocols of IEEE Std 802.1Q to offer the equivalent of separate LANs, Bridged Local Area Networks, or Virtual Bridged Local Area Networks to a number of customers, while requiring no cooperation between the customers, and minimal cooperation between each customer and the service provider.
802.1ad IEEE 802.1ad (provider bridges) network 802.1ah IEEE 802.1ah (provider backbone bridge) network BEB Backbone edge bridge CE Customer equipment NNI Network-to-network interface (egress EFP) PE-Agg Provider edge aggregation device UNI User-Network Interface (ingress EFP) BEB3–Mac address 3 BEB2–Mac address 2 BEB1–Mac address 1 BEB4 ...
Service provider bridges (also called provider bridges) allow devices in a service provider network to transparently carry the Layer 2 control frames of a customer. Spanning Tree Protocol (STP) bridge protocol data units (BPDUs) or Cisco Discovery Protocol frames are carried separately from the service provider traffic and from other customer ...
A provider bridge is just like a standard 802.1Q bridge, but it imposes a set of requirements, defined by IEEE 802.1ad standards, on a port in a provider bridge which interfaces to customer. This port is a UNI Port. 802.1ad Provider Bridge thus achieves the same functionality as being addressed with L2PT and QinQ.
This amendment enables a service provider to use the architecture and protocols of IEEE Std 802.1 Q to offer the equivalent of separate LANs, Bridged Local Area Networks, or Virtual Bridged Local Area Networks to a number of customers, while requiring no cooperation between the customers, and minimal cooperation between each customer and the service provider.
