The Concept and Solution of Ring Network Ethernet Switch

The general Ethernet switch cannot be used as a ring network, because once a ring is formed, it is easy to form a Broadcast storm. The Ethernet switch that supports ring networking is called an Ethernet switch with ring networking function because it has EAPS and ERPS protocols, which can prevent the formation of a ring network in the process of networking, avoid the formation of a Broadcast storm, and cause all Ethernet switches to crash.

Ring network Ethernet switches are a special type of Ethernet switch, as the mainstream ring network Ethernet switches are industrial Ethernet switches, they can generally be referred to as industrial grade ring network Ethernet switches. Ring network Ethernet switches have many advantages in the ring network structure, such as redundancy, reliability, and so on.


Ring network Ethernet switches can form a ring network, with two ports on each switch for ring formation. The switches form a ring network topology through hand holding. The advantage of its establishment is that when a certain link in the ring network is disconnected, it will not affect the forwarding of data on the network. Therefore, ring network Ethernet switches have been introduced in many industrial communication fields. The ring network Ethernet switch adopts some special technologies to avoid the Broadcast storm and realize the reliability of the ring network.

Ring network Ethernet switches are network devices that can provide fast and efficient data transmission and forwarding in a local area network. The solution includes the following key points:

1. Determine the number and location of Ethernet switches: Ensure that the number and location of Ethernet switches are sufficient to cover the entire LAN, providing sufficient bandwidth and data forwarding capabilities.

2. Configure ports and VLANs: manage data traffic in the LAN by configuring switch ports and VLAN (VLAN), so as to achieve better network performance and security.

3. Using QoS technology: By using Quality of Service (QoS) technology, different data types can be prioritized to ensure the stability and performance of real-time applications such as VoIP and video conferencing.

4. Implement security policies: control network access and protect the LAN from malicious intrusion and Data breach by implementing security policies and using security protocols (such as 802.1X authentication).

5. Backup and recovery plan: In order to prevent data loss caused by switch equipment failure, regular backup and recovery plans need to be implemented to ensure the stability and reliability of the network.

The common industrial grade ring network switching unit network solution generally adopts a layer 3 hybrid network topology structure, which is divided into several parts: access, aggregation, and monitoring center.

1. Access: Connect the camera to the switch, and then transmit it upstream through the optical port to the intersection convergence layer. Connect the access switch and transmit it to the convergence layer through a ring network.

2. Aggregation: Each access switch is converged to the aggregation switch, and then transmitted to the monitoring center through an optical port uplink. At the same time, multiple aggregation connections are transmitted to the monitoring center through a ring network.

3. Monitoring center: Use a gigabit layer 3 switch to aggregate and transmit data to the central switch, while connecting to servers, storage devices, and other central devices.

If use an Ethernet switch with ring network function to unit network, the networking method is generally to use a tree diagram connection method, and try to avoid making the network a loop as much as possible.