跳至主要内容

How to Connect Ethernet Switch, Router and Modem

In the computer networking world, the three most ubiquitous pieces of equipment are Ethernet switch, router and modem. These are applied everywhere from data center to network connections in your own home. However, despite the importance of these three pieces of equipment, some people are oblivious or confused to their internal functions and connection mode. So in this article, we will attempt to explain the difference between each piece of equipment and introduce the common way to connect Ethernet switch, router and modem.

What Is the Difference Between Ethernet Switch, Router and Modem

From a physical perspective, a modem, router and Ethernet switch look very similar. Nevertheless, there are key differences between them internally and functionally with relevant purposes on a network.
  • Switch: Bridge Your Devices in a Network
An Ethernet switch is commonly referred to as a multi-port network bridge that processes and routes data on a data link layer (layer 2) and sometimes network layer (layer 3) of the OSI model. An Ethernet switch is an intelligent device which transmits data to specific MAC addresses within the LAN. It has the capability to learn and distinguish between specific addresses by accessing them from a CAM table.
Switch-Bridge Your Devices in a Network
  • Router: Connect You with the Internet
A router is the "traffic director" of a network. It takes information provided by the modem or ONT and routes it to the various devices that are connected. Router uses protocols such as ICMP (Internet Control Message Protocol) to communicate with each other and configures the best route between any two hosts.
  • Modem: Connect Internet with ISP
A modem is the short way of saying “modulator, demodulator”, which is a hardware device that allows a computer to send and receive data over a telephone line or a cable or satellite connection. The main purpose of a modem when used in a home networking environment is to establish a connection between your home network and ISP.

Connection Between Ethernet Switch, Router and Modem

There are a handful of ways to set up a shareable home network connection, but the safest and most reliable way is to use a router and switch in combination. Once the switch is behind a router (which in most cases uses NAT), all devices connected to either the switch or the router can access the internet simultaneously. Placing the router between modem and Ethernet switch creates an extra layer of protection from threats on the Internet.

Here are the detailed steps for connection:

Step 1: Unplug the power supplies of cable modem, switch and wireless router. Unplug any Ethernet cables that are plugged into any of them.

Step2: Connect telephone wire with modem, and then connect an Ethernet cable to the Ethernet port on the back of the cable modem.

Step3: Plug the other end of Ethernet cable connected with modem into WAN port of router.

Step4: Connect another Ethernet cable to numbered Ethernet port on the switch and plug the other end into the LAN port on the wireless router.

Step5: Plug the power supplies of the modem, Ethernet switch and router in. After two minutes, the network and Internet connection is ready to go.
Connection Between Ethernet Switch, Router and Modem

Conclusion

As you read this, you may be clear about the knowledge of Ethernet switch, router and modem and the proper way to connect them in a network. For suitable Ethernet switch and gigabit switch of good quality, FS would be your great choice.
标签：

评论

发表评论

此博客中的热门博文

FS S3800-48T4S 48 Port Switch Introduction

It is well known that cabling system in data center consists of multiple devices, such as fiber optic transceiver, fiber optic patch cable, network switch and etc. As a member of the whole cabling system, 48 port switch with high density cabling plays a critical role to satisfy different sizes of networking deployment. In order to help you better understand 48 port switch, in this article we will mainly focus on FS S3800-48T4S 48 port switch introduction and its connection with transceivers and cables. FS S3800-48T4S 48 Port Switch Overview As a part of S3800 series family, FS S3800-48T4S is a 48 10/100/1000Base-T RJ45 copper ports and 4 10G SFP+ ports Gigabit switch that is designed for medium or larger network environment. This fully managed switch with fixed 10G SFP+ ports for uplinks can satisfy the demand for now and future. In addition, FS S3800-48T4S 48 port switch comes with two separate supplies: single power and dual power versions which can be used as alternatives and ...
发表评论
阅读全文

What is SFP+ Direct Attach Copper Cable?

DAC cable, or “Direct Attach Copper Cable”, is a type of copper cable which is similar to coaxial cable and also a form of high speed cable with SFP connectors on each end. As for the market nowadays, there are mainly three kinds of DAC according to the transmission rate: 10G SFP+ DAC, 40G QSFP+ DAC and 100G QSFP28 DAC in order to meet the increasing demand for cost-efficient delivery of more bandwidth. Today we will introduce the SFP+ DAC cable with the focus on types and advantages of SFP+ DAC cable. The Types of SFP+ Direct Attach Copper Cable SFP+ direct attach copper cable, also known as twinax cable, is an SFP+ cable assembly used in rack connections between servers and switches. It consists of a high speed copper cable and two SFP+ copper modules. It is widely used for short-distance and high speed Internet, such as gigabit network card, Gigabit switch, million server and etc. In general, SFP+ direct attach copper cable has two types, SFP+ active direct attach copper cable ...
发表评论
阅读全文

A Brief Introduction of Optical Transceiver

As an elementary part in the whole optic communication systems, an optical transceiver is a device that uses fiber optical technology to transform electrical signals into optical signals so that the information could transmit in the optical fiber. And when optical signal arrives at the destination, the transceiver then transforms optical signals into electrical signals. In general, it is a device used to send and receive information which includes two parts: a transmitter and a receiver. Nowadays, optical transceiver modules are extensively used in high-speed optical communication systems which require high performance, compact package, and low power consumption. Different Optical Transceiver Types There are lots of optical transceiver types, such as SFP+ (SFP Plus) transceiver, X2 transceiver, XENPAK transceiver, XFP transceiver, SFP (Mini GBIC) transceiver, GBIC transceiver, CWDM/DWDM transceiver, 40G QSFP+ & CFP, 3G-SDI video SFP, WDM Bi-Directional transceiver and PON tr...
发表评论
阅读全文