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Question: What is the "Fabric" in a Switched Fabric Topology?

Answer: In the early days of Fiber Channel, the concept of a universal "Fabric" was used to support Fiber Channel’s topology independence. With the advent of point-to-point and FC-AL topologies, it’s value has been enhanced.The Fibre Channel Fabric was designed as a generic interface between each node and the physical layer interconnection of the nodes. By adhering to this interface, any Fiber Channel node could communicate over the “Fabric” without having to know the interconnecting scheme between nodes. A “Fabric” is similar to a telephone switch which allows you to originate a call to another party without requiring you or the other party to have detailed information about the interconnection mechanism used to establish the call between two points.

In the early days of Fiber Channel, the concept of a universal "Fabric" was used to support Fiber Channel’s topology independence. With the advent of point-to-point and FC-AL topologies, it’s value has been enhanced.The Fibre Channel Fabric was designed as a generic interface between each node and the physical layer interconnection of the nodes. By adhering to this interface, any Fiber Channel node could communicate over the “Fabric” without having to know the interconnecting scheme between nodes. A “Fabric” is similar to a telephone switch which allows you to originate a call to another party without requiring you or the other party to have detailed information about the interconnection mechanism used to establish the call between two points.
Source: CoolInterview.com

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