What if the various nodes of the network are connected through repeaters to form a closed loop?

If the various nodes of the network are connected into a closed loop through repeaters, this topology is called a ring topology. The ring topology means that each node is connected to a closed ring through a repeater, and the data in the ring is transmitted in one direction.

The operating environment of this tutorial: Windows 7 system, Dell G3 computer.

If the various nodes of the network are connected into a closed loop through repeaters, this topology is called a ring topology.

Ring topology uses public cables to form a closed ring. Each node is directly connected to the ring, and information is transmitted from one node to another node along the ring in a certain direction. The ring interface generally consists of a transmitter, a receiver, a controller, a line controller and a line receiver. In a ring topology, there is a "token" that controls the power to send data. It is transmitted unidirectionally in a certain direction. It is received every time it passes through a node and is judged once. If it is sent to that node, then Receive, otherwise the data will be sent back to the ring and continued to be transmitted.

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In the ring structure, each node is connected through a ring interface in a closed ring communication line connected end to end. Each node in the ring has the same status, and any node on the ring can request to send information. Once the request is approved, it can send information to the ring. According to the design, the data in the ring network is mainly one-way or two-way transmission (bidirectional ring). Since the ring is public, the information sent by a node must pass through all the ring interfaces in the ring. When the destination address of the information flow matches the address of a node on the ring, the information is received by the ring interface of the node and continues to flow to the next ring. loop interface until it flows back to the loop interface that sent the information.

The characteristics of the ring topology are as follows:

(1) The cable length is short, and each node only needs to be connected one after another.

(2) Optical fiber can be used. The transmission rate of optical fiber is very high, which is very suitable for unilateral transmission of ring topology.

(3) All sites can have fair access to other parts of the network, and the network performance is stable.

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