What is Ethernet? What is an Ethernet port? Summary of outstanding features of Ethernet

Ethernet is a commonly used term in computer equipment, laptops, televisions, … but it is still unfamiliar to many people. Chances are, you’ve heard over Ethernet on the radio or on social networking sites. So what is Ethernet? What is an Ethernet port? Let’s find out the outstanding features of Ethernet with lassho.edu.vn in the following article!

What is Ethernet?

Ethernet is a form of networking technology, used to connect networks together in a local area network. This is where electronic devices connect to each other through a protocol .

In other words, Ethernet is where computers, laptops, televisions, etc. can connect to the network, connect data with other devices. In Ethernet there will be frames, to divide the data stream into packets of source and destination addresses, which have the function of detecting errors in the transmitted data and requesting retransmission.

Therefore, Ethernet has high security and reliability , so it is widely used in today’s life such as offices, schools, companies, …

What is an Ethernet port?

The Ethernet port is where the Ethernet cable is plugged in to transfer data. The Ethernet port is shaped like a small hole, wider than a phone charger, usually located on the side or behind electronic devices.

It has the function of connecting wired network hardware in the network system such as LAN, WAN or MAN. The Ethernet port is fully equipped on today’s modern electronic devices such as televisions, computers, game consoles, network devices, …

How to transfer data over Ethernet

The way data is transmitted over Ethernet has two ways, the physical layer and the data link layer . In the industry, it is also known as Layer 1 and Layer 2. When operating, Ethernet defines two transmission units as packets and frames. (Packet and Framework), adopts the OSI network protocol model.

Each Framework must be in a package containing several bytes of information, which helps to establish the connection and mark the location. In the Framework will contain the content of the transmitted data, physical access address, error correction information and VLAN tagging.

Features of Ethernet

Ethernet has a number of outstanding features as follows:

• Data when transmitted over Ethernet gives users smooth, high speed .
• Ethernet is highly secure and reliable , so you can use it with confidence. If someone breaks into your home network, all devices on the network stop processing immediately and wait until the user tries to retransmit.
• You can share data with printers, scanners, computers,…
• Ethernet network transmits data quickly, so it is widely and commonly used in life, work, and study.

Common types of Ethernet cables today

Today (October 3, 2021), users commonly use 3 common Ethernet cables as follows:

• CAT5E cable: This is a cable capable of transmitting signals up to 1000 Mbps to help users comfortably use. It also features less cross-contamination , ensuring that the network speed is always smooth and stable.
• CAT6 cable: The highlight of this cable is similar to CAT5E cable. However, CAT6 also has some more outstanding features such as bandwidth up to 250 MHz , 2.5 times that of CAT5E.
• CAT6A cable: is the most modern cable today, with outstanding features such as limited interference thanks to its thick outer sheath. They have a bandwidth of 500 MHz twice as much as CAT6. Especially CAT6A supports 1000 Mbps signal transmission at a distance of 100m .

Types of Ethernet Ethernet networks in Vietnam

Types of Ethernet Ethernet networks in Vietnam are wired and wireless. For the wired type, it is most commonly used in Vietnam, while the wireless type is still used but rarely appears and is rare.

Wired Ethernet – Common Network Type

Wired Ethernet is capable of connecting over a distance of 10km with the help of fiber optic cables, requiring users to install a network interface card for the computer with a single IP address.

Users must set up a communication system to transfer data to other devices such as printers, computers, …

Advantage:

• High security, reliable by using firewall to secure data.
• Data is transmitted and received at very high speeds.
• Very easy to use wired network.

Defect:

• Use in short range, limited movement.
• Difficulty in maintenance.
• Installation costs go up with Ethernet cables, hubs, switches, and routers.

Wireless Ethernet – Rare Network Type

Wireless Ethernet uses a wireless NIC to connect network data to the device. They use radio waves to communicate between these systems and devices.

The NIC is connected to a wireless switch or hub. This technology requires maintenance but it is easier to use.

Advantage:

• Multiple people can use it at the same time.
• The cost is cheaper than wired Ethernet.
• Easily add new devices to the network.
• You are free to use electronic devices such as laptops, phones, TVs, …

Defect:

• Slow speed.
• Not highly reliable and less secure.
• The network is easily obstructed by the structure of the building such as walls, ceilings,…
• Installation is difficult for inexperienced users.

Compare Ethernet to Wi-Fi

To learn more about Ethernet in detail and make the right choice between Ethernet and Wi-Fi, you can refer to the comparison table of the advantages and disadvantages of Ethernet and Wi-Fi as follows:

Criteria	Ethernet	WIFI
Advantage	Stable signal speed , thanks to the use of wires to connect the device to the network modem. High reliability and security , due to the wired connection, users can easily monitor and observe who wants to connect to your local network.	It does not cost much to install, like buying cables or other supporting equipment. You can comfortably connect to mobile devices, because Wi-Fi does not use a connection port . Users are free to move anywhere without worrying about network connection problems.
Defect	High installation cost to buy connection cables, buy cable shields,… The connection port is limited , so it is not possible to connect to many devices at the same time. There is no portability , so it is only suitable for use with fixed devices such as computers, televisions, …	Slow signal speed , easy to lose network and influence from obstacles, making the connection strength gradually weaker. Low reliability and security , easy to be infiltrated by bad people.

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Above is the article about What is Ethernet? Summary of outstanding features of Ethernet. Hopefully the above article will help you understand more about Ethernet and make the right choice for your needs!