##  [Switch](/index.php/switch) 

  ##  [Switch](https://information.quantumdictionary.io/switch-0) 

  

 [![Information & Communication Dictionary](/sites/default/files/styles/large/public/2026-01/Information%20%26%20Communication.png.webp?itok=g4emS-T7)](/index.php/topic-specific-dictionaries/information-communication)



**Information & Communication Dictionary**

 







 

 

 

 



 

 

 

 

Definition

A network device that forwards and filters frames within a local network by learning and using MAC‑address to port mappings (a MAC table); a switch operates primarily at the data‑link layer to deliver frames to the appropriate interface within a broadcast domain and to limit unnecessary frame propagation.