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Backplane and switching capacity

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They are not the same, but closely related.

Backplane speed is similar to bus speed in a computer. It defines the bandwidth of the module-to-module interconnect in large multi-module switches. Backplane speed is just one component of total speed.

Switching speed is the rate that a port-to-port transfer can be made.

Most unmanaged and "smart" / managed Layer 3 switches up to at least 24 ports today are non-blocking, i.e. can support full-rated transfer simultaneously on all ports.
 
They are not the same, but closely related.

Backplane speed is similar to bus speed in a computer. It defines the bandwidth of the module-to-module interconnect in large multi-module switches. Backplane speed is just one component of total speed.

Switching speed is the rate that a port-to-port transfer can be made.

Most unmanaged and "smart" / managed Layer 3 switches up to at least 24 ports today are non-blocking, i.e. can support full-rated transfer simultaneously on all ports.

So backplane is a modular switch's parameter only?
I didn't ask before, but what about forwarding rate [Mpps] ?

Regards
 
So backplane is a modular switch's parameter only?
I didn't ask before, but what about forwarding rate [Mpps] ?
You might find backplane rate quoted in non-modular switches. But it doesn't really matter.

Forwarding rate is another component of switching speed. It is the speed of the packet processor.
 
I have one more question. How I know when these parameters are within an acceptable value range? I just know it depends on port quantity.

Kind Regards
 
You might find backplane rate quoted in non-modular switches. But it doesn't really matter.

Forwarding rate is another component of switching speed. It is the speed of the packet processor.


thanks a lot for all thiggins :)

Best Regards
 

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