What Is Non Blocking Switch Fabric

A switch is said to be non-blocking if the switching fabric is capable of handling the theoretical total of all ports, such that any routing request to any free output port can be established successfully without interfering other traffics.

What is blocking and non-blocking switch?

a switch is non-blocking if all output-contention free switching patterns are non-blocking. Blocking switch: a switch with blocking patterns. Blocking appears when non-blocking switches are interconnected. It is caused by output contention within the switching.

What are different switching fabrics?

There are three types of switching fabrics: memory, bus, the crossbar. Switching via memory is what the first generation routers use.