Understanding Switches: Their Purpose and Functionality

Nowadays, networking devices have become essential for effective network connections. Among them, one cannot overlook the significance of Switch devices. However, the concept of Switch may not be clear to everyone. To help you understand more, read the article below!

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What is a Switch? 

A Switch is a critical component in network systems. It is used to interconnect network segments in a star network topology. Moreover, this device functions as a multi-port Bridge. The Switch serves as the central device, connecting all computers within the system. This forms a complete network system.

A Switch divides networks, enabling direct connections to source computers. Additionally, other connecting devices share a common protocol. The Switch also has the capability to interconnect multiple Segments, depending on the number of ports on the Switch. Furthermore, while Switches resemble Routers, those on the same network face limitations.

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Switch Functionality

What are the functions of a Switch? How is this device used and for what purpose? Let's review the 4 main functions of this device together!

Switch aids in transferring data frames between devices

Switches are utilized to transfer data frames between interconnected devices. This component functions akin to a traffic police officer, directing data flow within a local network. This ensures that various types of data are delivered to their intended destinations without congestion.

Divide LAN network into Segments with Switch 

One of the prominent uses of Switches is to partition network systems. This component divides the LAN network into smaller Segments, facilitating easier reconnection of Segments through Switch connection ports. Switches also help create smaller collision domains, offering ample bandwidth to users.

Switches also have the ability to connect multiple Segments

Switches identify which device is connecting to their ports when two computers are linked. Subsequently, the Switch establishes a virtual network between the two ports compatibly, without affecting the traffic flow of other ports.

Building and providing relevant information with Switch

Switches have the capability to construct tables of information related to packets. They then send them to the correct address as requested by the user. To put it simply, Switches receive data from computers within the system. They then analyze and create tables before forwarding them. This is one of the highly regarded functions of Switches.

What do Network Cables and Switches facilitate?

After understanding what a Switch is, what does this switching device facilitate? This is also a common question among many users today. Switches and network cables allow users to connect various devices together.

Additionally, they maintain uninterrupted access traffic between two devices. Furthermore, Switches enable users to monitor the usage process of connected devices. Switches help users communicate with other devices in the network quickly. Advanced Switches also have the capability to adjust according to network requirements.

Popular Types of Network Switches Nowadays

Unmanaged Switch

Unmanaged Switch is a type of device that isn't managed and lacks many features. It operates quite simply and doesn't require any configuration. Therefore, users only need a few ports at home or in meeting rooms. Unmanaged Switch resembles an Ethernet network switching device, a desktop Switch.

Unmanaged Switch cannot monitor network data speed or allow access to the system. However, this device still maintains a control table and enables tracking of MAC addresses. It also monitors the corresponding switch ports that have received MAC addresses. However, due to operating on a broadcast domain, MAC address conflicts may occur.

Managed Switch

Managed Switch, also known as Managed Switch, provides perfect solutions. Additionally, it optimizes the network system and possesses various features. From VLANs, CLI, SNMP, IP routing to QoS...

Furthermore, users can better control the network by monitoring data passing through it. They also have access to the network system and receive error alerts when issues occur. Remote management is done through a control panel on the web interface.

Therefore, users choose Managed Switches based on the needs and scale of the network system. If users want to limit costs and find moderately sized Switches, they should choose Smart Switches.

This is the trimmed-down version of Managed Switches. Although it may not have all the features, it still ensures full management, meeting all essential user needs.

Central Hub

Central Hub serves as a central point for designing network devices. It is commonly used to connect devices within a LAN network together. Operating at the Physical Layer in the OSI model, the Hub features multiple ports, facilitating high network traffic. All packets are transmitted to every port except the designated destination.

Router

Router, also known as a routing device, is responsible for forwarding data packets across the network. This routing device connects to at least two types of networks: LAN or WAN, or links a LAN network to an internet service provider.

Moreover, the Router can be located at the entry port, where two or more networks connect. It utilizes headers and forwarding tables to determine the best route, forwarding packets and employing protocols like ICMP for communication.

Furthermore, it also determines the best path between any two workstations. If users want to own a quality Router at an affordable price, they should choose Cisco network devices. Besides, there are other popular Cisco Router models available, such as Cisco 2911-SEC/K9, Cisco 1941-HSEC+/K9, and Cisco 1921-SEC/K9.

Comparing the Differences Between Hub, Switch, and Router

All are network connecting devices, so what are the differences between Hub, Router, and Switch? Let's compare all three devices in the table below:

Conclusion

Currently, the concept of Switch or the functionality of this component is drawing significant attention. Especially, the application of Smart Switches is widely used with various benefits. If you have any questions about Switches, feel free to contact Mytour!