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Dec 31, 2002 · 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 ...
Configuring IEEE 802.1ad. Provider networks handle trafic from a large number of customers. It is important that one customer’s trafic is isolated from the other customer’s trafic. IEEE 802.1ad enables the service providers to use the architecture and protocols of IEEE 802.1Q to offer separate LANs, bridged local area networks, or virtual ...
Configuring IEEE 802.1ad. Provider networks handle traffic from a large number of customers. It is important that one customer’s traffic is isolated from the other customer’s traffic. IEEE 802.1ad implements standard protocols for double tagging of data. The data traffic coming from the customer side are double tagged in the provider ...
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How does IEEE 802.1ad work?
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What is a service tag in IEEE 802.1ad?
by the IEEE 802.1ad standard. These requirements enable provider bridges to have the same functionality as Layer 2 protocol tunneling (L2PT) and Q-in-Q (QnQ) bridges. This document describes the IEEE 802.1ad implementation on Cisco switches using Layer 2 switch ports. Finding Feature Information
For instructions on how to do that, see Using the CLI Editor in Configuration Mode in the CLI User Guide. Define the custom IEEE 802.1ad map: Create the classifier by specifying a name for it and defining it as an IEEE-802.1ad (DEI) classifier. user@host# edit class-of-service classifiers ieee-802.1ad dot1p_dei_class.
Consider the proposed standard as an amendment to 802.1Q (and possibly as a future extension to the MAC Service Definition) Steps towards an 802.1ad draft Style of specification : A recommendation Mick Seaman What is a bridge? A miscellaneous collection of learning and forwarding functions, more or less? Equipment conforming to 802.1D or 802.1Q?
§ No changes are required to convert 802.1Q to 802.1ad beyond assigning a new Provider Bridge Address block and a Provider Tag Ethertype. § This is sufficient provided that: § All customer traffic maps to a single provider service instance. § All customer traffic has the same priority in the provider network.
