In a ring network, every device has exactly two neighbours for
communication purposes.
• All messages travel through a ring in the same direction.
• A failure in any cable or device breaks the loop and can take down the
entire network.
• To implement a ring network we use the Token Ring technology
• A token, or small data packet, is continuously passed around the
network. When a device needs to transmit, it reserves the token for the
next trip around, then attaches its data packet to it.