Choose the Most Applicable Managed Ethernet Switches

Generally speaking, managed Ethernet switches are used on larger networks, where their monitoring, security, and troubleshooting features are likely to be required. While they are powerful additions to local networks, they are also more expensive and require more knowledge to set up and utilize. Protocols such as SNMP (Simple Network Management Protocol), and the ability to implement VLANs provide network traffic control and monitoring abilities not available on unmanaged switches. 

Managed Ethernet switches provide more security than unmanaged switches. Their ability to monitor and control network traffic increases the ability to detect a shutdown threats, and prevent unauthorized access to the network. Authentication protocols such as RADIUS and TACACS+ are secure and robust ways to set up and handle authorized users. 

The question of which kind of switch is “better” depends on the specific application. Unmanaged Ethernet switches are simpler, easy to use, and more economical. However, unmanaged switches do not provide any sort of monitoring, alerts or alarms. In simple applications where there are fewer devices, no VLANs, and basic connectivity is the main objective, they are often the best choice. As network size and complexity increases, Managed Ethernet switches will become the more attractive option. 

Managed switches deliver extra value in a network by providing information about the status of the network. This includes things like high bandwidth consumption, unexpected port connections, and power supply failure. Additionally, a managed switch can implement redundancy, a critical feature when connectivity must be maintained at all times. Managed switches also enable administrators to configure, manage and monitor networks for full optimization. A major feature on managed switches is the support of redundancy protocols that minimize downtime in the event of a device failure.

It can. Managed switches usually support Quality of service (QoS), which is the use of devices and technologies control network traffic prioritize the network performance of critical systems. 

Yes. Managed switches have a unique IP address that is used to access the switch via Telnet or web browser where supported. They ship with a default IP address, and that address is usually changed by the administrator when the switch is unboxed and set up. Unmanaged switches do not have an IP address. 

Yes. VLANs operate at Layer 2, and act as IP subnets, Layer 3 constructs. A one-to-one match often exists between VLANs and IP subnets, but it is still it is possible to have multiple subnets on one VLAN. 

Traditional Layer 2 logic sub netting faces practical and performance limitations when applied to topologies with a large number of devices. To ensure flexible industrial application planning, Layer 3 Ethernet switches have been introduced into advanced management, with a host of features that are quickly becoming more and more often necessary. 

See this article : When should you use an Industrial Layer 3 switch? 

Layer 3 Ethernet switches are powerful, but are also more expensive and difficult to configure. Layer 2 and unmanaged switches are more economical and easier to set up.