Managed vs unmanaged network switches: understanding the differences & benefits

In a local area network, switches are very important hardware and help connect the peripheral devices effectively. These switches receive information from a source and forward it to the target device ensuring effective data transmission between the devices.
Basically network switches are classified as managed and unmanaged switches. Choosing between the two is critical while designing a network.
In this article we will discuss about network switches and the points to consider while selecting between managed and unmanaged switches.

Unmanaged Switches

Unmanaged switches are switches that use auto-negotiated ports to determine data rates and modes of transmission like Full Duplex or Half Duplex. They maintain MAC address tables, that track dynamically learned MAC addresses and corresponding port addresses.

Features of unmanaged switches:

• Easy plug-and-play operation. No configuration required.
• Ability to create and dynamically learn MAC addresses, enabling easy traffic management as compared to an ethernet hub.
• Don’t have VLAN and as a result all devices belong to the same broadcast domain.
• There is no distinction between multicast and broadcast traffic resulting in congestion issues called broadcast storms.
• Suitable for simple network topologies like star and daisy chain.

Managed Switches

Managed switches allow network administrators to configure switches, enabling them to manage and monitor the network better. Simple Network Management Protocol (SNMP) allows network administrators to monitor switch ports, traffic throughput and errors.

Features of managed switches

• Managed switches need to be configured into a network and can manage telemetry data with remote management and software-defined networking management.
• These can be deployed in a wider array of network topologies like spanning tree protocol, Ring, Mesh etc. allowing greater reliability and redundancy.
• Managed switches come with security features allowing the administrator to evaluate network access, monitor attacks and remedy any breaches in network security.
• Managed switches can optimise the performance of devices on the network through Quality of Service (QoS) which helps in prioritizing traffic and grouping devices that use common services.

Key Considerations for Managed and Unmanaged Switches: Making the Right Choice

Performance

Unmanaged switches can be plugged into the network immediately and get the netwrok running. There is no need for any configuration.
A managed switch shall be configured into a network to prioritize channels ensuring optimum performance where it is needed. Also managed switches are less likely to falter and allows for remote troubleshooting making it easier to check for any issues impacting performance.
Network administrators maintain both managed and unmanaged switches. With managed switches the network administrators can configure managed switches to handle the trafficmore efficiently.

Security

Unmanaged switches have very basic security.
Managed switches have the ability to detect active threats, protect data and control the ports. The level of security can include features like network communication encryption, access control list and VLANs that allow limited access to networks.

Cost

Unmanaged switches are cheaper and a easy choice for simpler networks.
Managed switches command higher cost which depends on the features such as security and access controls, in addition to switch configuration abilities.

Choosing between a Managed and Unmanaged Switch

Network

Unmanaged switches are suitable for simple, uncomplicated networks with a few connected devices.
Widespread and complex networks require reliability, control and security. Such networks require managed switches that provide the required security and control.Generally such networks are found in enterprise-level businesses, government agencies, universities and healthcare organizations.

Level of Security

Sometimes small networks also deal with a lot of highly sensitive data, asking for reliability and high security. In such applications, the network administrator will have to choose managed switches.

Type of Access

Networks requiring temporary or limited degree access to some connected devices, from time to time, should choose for managed switches. In such cases, VLAN function of managed switches is useful to ensure flexibility and security.

Conclusion

The choice between a managed switch and an unmanaged switch ultimately depends on the specific needs and requirements of your network. In a nutshell, if you have a small network with basic connectivity needs and a limited budget, an unmanaged switch may suffice. But if you have a larger network, require advanced features, and value control and optimization capabilities, a managed switch is the way to go. Assess your network requirements, budget, and technical expertise to make an informed decision on which type of switch is best suited for your specific requirements.

About LUBI Electronics

LUBI Electronics is a leading company in India, exhibiting expertise in the automation, solar, and control panel industry.
We offer Advantech and Moxa products and solutions for Industrial Computing & Networking, Intelligent Transportation Systems, Data Acquisition, SCADA and IIOT.
For more information on our offerings, please reach out to us at lubi@lubielectronics.com.