Ethernet switches are one of the main devices that enable data communication in a Local Area Network (LAN).
Various devices, such as computers, servers, printers, and other network devices are connected by an ethernet switch so that we can communicate efficiently without disturbing other devices that are not involved in the data transmission process.
In this article, we will review ethernet switches from understanding, history, how they work, and main functions, to their regulations in Indonesia.
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What are Ethernet Switches?

An Ethernet switch is a network device that plays a role in connecting various devices in a Local Area Network (LAN) and forwarding data packets based on the MAC (Media Access Control) address of each device.
Compared to hubs, switches work more efficiently because they only send data to the destination device, not to all devices connected to the network.
A Brief History of Ethernet Switches
Ethernet technology was first developed by Robert Metcalfe at Xerox PARC in 1973. Initially, Ethernet was used for local networks with a data transfer rate of 10 Mbps.
However, as technology advances, Ethernet is now capable of reaching speeds of up to 100 Gbps and has become a standard in enterprise networks, data centers, and various industrial applications.
How Ethernet Switches Work

Ethernet switches operate by utilizing MAC address tables to direct data to the appropriate device. Each time a device connects, the switch records its MAC address and determines the most efficient path to transmit the data.
Switching works using the following methods:
- Store and Forward: Data is analyzed first before being sent to ensure there are no errors in transmission.
- Cut-through Switching: Data is sent directly without thorough examination, resulting in a faster transfer process.
The Functions of Ethernet Switches
Switches have an important role in local networks (LANs), especially in connecting devices and managing data traffic efficiently. Some of the main functions of a switch include:
1. Forwarding data packets
Switches are responsible for directing data packets from source devices to destination devices. When receiving a packet, the switch reads the destination MAC address and sends it only to the appropriate port, not to the entire network.
2. Network segmentation
With the Virtual LAN (VLAN) feature, the switch can divide the network into multiple virtual segments. This allows the separation of data traffic based on specific needs, improving network security and efficiency.
3. Improved network performance
Switches provide a dedicated communication path for each connected device, reducing the possibility of data collisions that often occur on hubs. This makes the network more stable and efficient.
4. Broadcast filtering
Switches are able to filter and control broadcast traffic on the network. When a device sends a broadcast packet, the switch only forwards it to the relevant port, reducing network load.
5. Fast data transmission
Thanks to advanced switching hardware technology, switches can transmit data packets at high speeds, improving network responsiveness and efficiency.
With these functions, Ethernet switches have become essential tools for building a reliable, secure, high-performance local network (LAN).
Ethernet Switch Regulations in Indonesia

Ethernet switch products sold in Indonesia must be certified by the Directorate General of Digital Infrastructure (DJID) under the Ministry of Communication and Digital (KOMDIGI). This is based on KEPMEN No. 60 Tahun 2022, which requires all radio frequency-based devices, including ethernet switches, to meet specific technical standards before being sold in the country.
The certification ensures that the product meets government safety and quality regulations and does not interfere with other communication devices. The certification process involves technical testing, such as frequency adjustments, safety checks, and compatibility with the surrounding environment.
Once the tests are completed, products that pass are listed in a Test Result Report, which confirms that the product is safe and ready for sale in Indonesia. This report reassures customers that the product meets technical standards and is secure.
For companies wanting to sell ethernet switches in Indonesia, Type Approval Certification Services for ICT Products are available to assist with this process. This service includes preparing technical and legal documents, conducting required testing, ensuring compliance with regulations, helping companies streamline the certification process, and giving consumers confidence in certified products.










