What difference does it make when i use "SVI" interface and assign IP to it or i simply assign ip to the physical interface using" noswitchport" command in multilayer switch ?

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If you create a SVI , you are creating a logical interface for a vlan  but when you run no switch port command  you are creating a physical l3 interface(same as router's interface).

SVI will not divide broadcast domain but physical interface does.

 

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