Networking Devices

            Network Component   

 HUB: -              

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Ø  1 Collision Domain: - One port can send and receive at same time.

Ø 1  Broadcast Domain: -How Far Broadcast travels in a network.

MAU (Media Access Unit): -  

Bridge: - Learn Mac address one side to another side: -   

            

    Switches: -

Ø  Each port has a collision domain   

Ø  1 Broadcast Domain   

Ø  Full Duplex communication   

Ø  Learn mac address   

Ø  Make Forwarding Decisions based on Mac Address   

Ø  MAC (Media Access Control) address

                ü  A 48-bits address burnet into Network Interface Card (NIC).  

Organization Unique identifier (OUI) (24 bits) (6 Hex Character)	Vendor Assigned or Vendor Code (24 bits) (6 Hex Character)
00:19:56	2D:EA:8A

               Mac Address: -  00:19:56:2D:EA: 8A

Ø  The Mac address will store in Switch Chip called ASIC (Application specific Integrated Circuit) that is created by IBM   

   
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