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What is Backplane and switch fabric?


I am finding it very difficult to understand the terms backplane and switch fabric.

Are they same or different.And how to find the backplane speed etc 

Kindly explain.


  • LAN Switching and Routing
Super Bronze

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Sometimes used for the same thing, sometimes not.

Generally a fabric would be something mentioned with switches as it provides a paths between ports that are not shared.  If you had ports A,B,C and D.  A and C could "converse" while B and D also "converse", but without any bandwidth contention.

Generally a backplane is the what you plug cards into and is part of the "empty" chassis; it may have a fabric architecture or a bus architecture (or some combination).