Edge routers vs traditional routers

In today’s era of rapid digital development, industrial wireless control networks have become a key force driving industrial automation and intelligence. In this complex and precise network architecture, edge routers and ordinary routers are like two brilliant pearls, each radiating unique light and undertaking different missions.

Definition and basic functions

As a core device in network communication, the basic responsibility of a router is to transfer data packets from one network to another. It determines the best transmission path by looking up the routing table based on the destination address information in the data packet, ensuring that the data can reach the destination accurately and efficiently. In industrial wireless control networks, ordinary routers are mainly responsible for connecting wired networks in different areas, achieving interconnection and interoperability between local area networks, providing stable network access services for industrial equipment, and ensuring smooth data transmission.

Edge routers are special routers deployed at the edge of the network. They are located at the junction of industrial wireless control networks and external networks (such as the Internet), acting as gatekeepers. Edge routers not only need to perform the data forwarding function of ordinary routers, but also possess strong security protection capabilities to prevent malicious attacks and virus intrusions from external networks, and protect sensitive data and key equipment within industrial wireless control networks from damage. Meanwhile, edge routers also need to monitor and manage the data traffic entering and leaving the network, filter and speed limit the data according to the preset policies, and ensure the reasonable allocation and efficient utilization of network resources.

Application scenarios and deployment locations

In industrial wireless control networks, ordinary routers are usually deployed in various workshops, warehouses and other areas within factories, connecting numerous production equipment, sensors, controllers and other industrial terminal devices. For instance, in the final assembly workshop of a large automobile manufacturing plant, ordinary routers connect the automated assembly equipment, quality inspection instruments, etc. at each workstation to form a local area network, enabling data interaction and collaborative work among the devices. These ordinary routers are connected to the factory’s backbone network via wired means, providing high-speed and stable network services for industrial equipment in the workshop and ensuring the smooth progress of the production process.

Edge routers are mainly deployed at the network exit of factories, connecting the industrial wireless control network within the factory with the external Internet or other wide area networks. Take an intelligent factory as an example. The edge router is located in the factory’s network room. One end is connected to the networks of multiple workshops within the factory, and the other end is connected to the Internet, enabling network communication between the factory and external suppliers, customers, remote monitoring centers, etc. The edge router plays a crucial role here. It not only ensures the data transmission between the internal network and the external network of the factory, but also prevents the external network from interfering with and damaging the internal production system of the factory through strict security policies and traffic management, ensuring the safety and stability of the factory’s production and operation.

Safety protection capability

Security is the lifeline of industrial wireless control networks, and edge routers far exceed ordinary routers in terms of security protection. Although ordinary routers also have certain security features, such as Access control lists (ACL) and Network Address translation (NAT), these functions are relatively basic and are mainly used for simple network access control and address translation. In industrial wireless control networks, ordinary routers mainly focus on ensuring the normal operation of the internal network and preventing network conflicts and data interference among internal devices.

Edge routers are equipped with more powerful security protection mechanisms, integrating multiple security technologies such as firewalls, intrusion detection systems (IDS), and intrusion prevention systems (IPS). A firewall can strictly inspect and filter data packets entering and leaving the network, and prevent illegal access and malicious attacks based on preset security rules. IDS and IPS can monitor network traffic in real time, promptly detect and defend against various network intrusion behaviors, such as port scanning, denial-of-service attacks (DoS), distributed denial-of-service attacks (DDoS), etc. In addition, edge routers also support virtual private network (VPN) technology. By establishing encrypted communication tunnels, they enable secure data transmission between the factory’s internal network and remote users or branch offices, ensuring the confidentiality and integrity of the data.

Performance and processing capacity

Due to the high real-time and reliability requirements for data transmission in industrial wireless control networks, edge routers also need to have stronger advantages in terms of performance and processing capabilities. When processing data, ordinary routers mainly focus on the rapid forwarding of data and the stability of the network, and have relatively low requirements for data real-time performance and priority scheduling. In general industrial application scenarios, ordinary routers can meet the basic data interaction requirements between devices and ensure the normal operation of the production process.

Edge routers, on the other hand, need to deal with more complex network environments and higher performance requirements. It not only has to handle a large amount of data traffic, but also prioritize and schedule different types of industrial data in real time. For instance, in industrial automation control systems, control instruction data needs to take precedence over ordinary data transmission to ensure that production equipment can respond to control signals in a timely manner and achieve precise production operations. Edge routers, by adopting high-performance processors and advanced data processing algorithms, can quickly classify, identify and forward data, ensuring the real-time transmission of key data in industrial wireless control networks and enhancing the operational efficiency and reliability of the entire production system.

Management and Maintenance

In the daily management and maintenance of industrial wireless control networks, edge routers and ordinary routers also present different characteristics. The management of ordinary routers is relatively simple and is usually configured and monitored by network administrators within the factory through local consoles or network management software. Network administrators can make simple parameter Settings for ordinary routers based on the production needs of the factory, such as IP address allocation, subnet division, and routing protocol configuration, to ensure the normal operation of the network. The maintenance work of ordinary routers is also relatively easy. Generally, it only requires regular checks on the operating status of the equipment, updating software patches, and cleaning the dust on the equipment, etc., to ensure the long-term stable operation of the equipment.

The management of edge routers is more complex and strict, requiring professional network security managers to operate and maintain them. As edge routers are involved in the secure interaction between the factory and the external network, their configuration parameters and security policy Settings need to undergo strict review and testing to ensure that no security vulnerabilities occur. Network security administrators need to conduct regular security assessments and vulnerability scans on edge routers to promptly identify and address potential security risks. At the same time, the maintenance of edge routers is more complicated. Besides the regular equipment maintenance, it is also necessary to pay attention to the changes in the network security situation, update security protection software and strategies in a timely manner, and deal with the constantly emerging new types of network attack threats.

Edge routers and ordinary routers each perform their own duties in industrial wireless control networks and play irreplaceable roles. Ordinary routers are like the guards of the network, silently safeguarding the stable operation of the factory’s internal network and ensuring data interaction between devices. Edge routers are like the guardians of the network, standing at the forefront of the network, defending against external threats and safeguarding the production safety of factories. With the continuous and in-depth development of industrial automation and intelligence, industrial wireless control networks will face more complex network environments and higher security requirements. Edge routers and ordinary routers will also be continuously upgraded and optimized to provide more solid and reliable network support for the development of industrial production. In the future, we can predict that during the evolution of industrial wireless control networks, edge routers and ordinary routers will work together to jointly build a secure, efficient and intelligent industrial network ecosystem, helping industrial enterprises ride the waves of digital transformation and move towards an even more brilliant future.