1. Home
  2. /
  3. Blog List
  4. /
  5. Uncategorized
  6. /
  7. What are Routers in Networking?

What are Routers in Networking?

Posted By :

Routers are a common tool for modern network computing. They connect employees to both local and internet networks, where just about every vital corporate activity takes place. Without a router in a computer network, we wouldn’t be able to use the internet to cooperate, communicate, or gather information and learn. This blog will discuss routers and the function of routers in networking.

Router in Networking

Router in Networking

Source

What is a Router?

A router in a computer network is a device connecting two or more networks or subnetworks that are packet-switched. These are networking devices functioning at layer 3 or a network layer of the OSI paradigm.

The principal function of a router in networking is to manage traffic between these networks. It does so by forwarding data packets to their respective IP addresses and allowing numerous devices to use the same internet connection.

A network devices router receives, analyzes, and forwards data packets between computer networks. When a data packet arrives, the router consults its routing tables to determine the best route, after inspecting the destination address, and then forwards the packet down that path.

There are various types of routers. However, the majority of routers transfer data between WANs (wide area networks) and LANs (local area networks). A single router in networking is often required for a LAN. By contrast, a WAN is scattered over a vast area and often demands many routers and switches.

Router In Computer Network

Router In Computer Network 

Source

Uses of a Router

A router in a computer network is used for the following purposes:

  • To ensure that data is flowing to the right destination, users send the emails to the correct recipient.
  • Routers defend against unwanted data, such as when an enormous file is delivered to each workstation on the network, and also increase network performance.
  • The router in networking acts as a buffer between the modem and the network and allows software protection to reduce the danger of viruses and other malware.
  • To share information with other routers connected to the network.
  • Routers perform the primary role of segregating the internet network from an internal network in the residential area or business.
  • Dynamic host configuration protocol (DHCP) allows the IP addresses of each computer that is joined to the network. Most routers are enabled with DHCP protocol over the internet that is utilized for small home and office networks.
  • Routers give protection from intruders and malicious users via the internal networks and are identified through the internet along with firewall firmware and software.
  • Routers also help many users to share resources like faxes, scanners, printers, and file folders on the discs located remotely.

The Architecture of a Router

Given below is a diagram that explains the architecture of a router in a computer network:

A Router in Networking Architecture

A Router in Networking Architecture

Source

The following are several variables that contribute to the successful operation of a router:

Input Port

The input port can perform the physical layer operation of terminating an incoming physical link to a router. It carries out the data link layer functionality required to communicate with the data link layer functionality on the opposite side of the incoming link.

The input port also conducts a lookup and forwarding function, ensuring that a datagram forwarded into the router’s switching fabric arrives at the correct output port.

Output Port

The output port stores packets from the switching fabric and sends them to the incoming link by executing link-layer and physical-layer functions. As a result, the output port serves the same reverse data link and physical layer functions as the input port.

Switching Fabric

It is a mix of hardware and software that sends data from a network node to the next node in the network via the correct port.

Routing Processor

Routing processors carry out routing protocols. It stores routing information as well as forwarding tables. It also handles network administration within the router.

Types of Routers

Routers are of the following types:

Wireless Routers 

A wireless router gives Wi-Fi connectivity to Wi-Fi devices such as laptops and smartphones. They can also provide normal Ethernet routing. Indoor connections have a range of 150 feet, while outdoor connections have a range of 300 feet.

Broadband Routers

A broadband router is used to connect to the Internet by telephone and to provide high-speed internet access via voice over Internet Protocol (VoIP) technology.

Core Routers

A core router can route data packets within a certain network but cannot route the packets between networks. They assist in connecting all devices within a network, forming the network’s backbone. 

Edge Routers

The most common forms of Edge Routers are low-capacity routers located at the network’s peripherals. An edge router connects the internal network to the external networks and can send data packets across networks. They employ the Border Gateway Protocol (BGP) for connectivity. There are two types of edge routers: label edge routers and subscriber edge routers.

Brouters

These are specialized routers that can also perform bridge functions. Brouters, like bridges, aid in data transit between networks. And, like a router, they route data among network devices.

Common Types of Routers in Networking

Common Types of Routers in Networking

Source

Conclusion

Different router uses and functions make it possible to change the data flowing as a datagram to ensure the transition from one type of network to another. Since networks do not have the same capacity in terms of data packet size, routers are responsible for fragmenting data packets to allow them to circulate freely.

A Wi-Fi router functions in the same way as a traditional router, except that it allows wireless devices (such as Wi-Fi stations) to connect to networks to which the router is wired (usually Ethernet).

FAQs

Q1. Routers operate on which layer of the OSI Model?

Routers function at the OSI network model’s three lowest layers: the physical layer, data link layer, and network layer.

They are used to link networks together. The internet consists of numerous interconnected routers. A router in networking may intelligently transport data from one network to another by using a network protocol such as TCP/IP. For example, when a user sends a request for a server, the router on the local network will examine its routing table and decide where to relay the data.

Q2. What are the benefits of using a Router?

A router in a computer network is a practical way to connect several devices to high-speed internet for business or home use.

  • Supports a variety of devices
    Let’s say you have an Ethernet router that supports three to five devices. Then, acquiring a second router to connect more PCs to your network makes sense. This also allows for the utilization of a hybrid network connection.
  • Convenient
    A wireless connection is convenient since it can extend to far-away networks/ devices. Furthermore, the use of a router in networking allows network isolation, which is especially useful when using routers between numerous devices (such as LAN gaming or file transfers).
  • Use of the internet separately
    A router, particularly a high-band router, allows you to accomplish various functions on numerous devices, such as streaming music and movies, browsing the web, and checking email.
  • Simple file sharing
    A router in networking also enables high-speed connectivity, which is required for applications such as streaming video and exchanging files over a network.

Q3. What are some router protocols?

The following are some of the router protocols:

  • Static routing protocol
    This routing protocol in networking is used when an administrator manually assigns the path from the source network to the destination network. It strengthens the network’s security.
  • Dynamic routing protocol
    These are yet another essential form of routing technology. It automatically enables routers to add information from connected routers to their routing tables. These types of protocols also send out topology updates anytime the network’s topology changes.
  • Distance Vector Protocol
    Distance Vector Protocols use large bandwidths and slowly converge to promote their routing table to every directly connected neighbor at precise time intervals. All routing databases must be updated with new information when a route becomes unavailable in the distance vector routing protocol.
  • Routing and Information Protocol (RIP)
    RIP can be found in both LAN and WAN networks.
  • Interior Gateway Protocol (IGP)
    IGP is a subclass of the distance-vector interior gateway protocol. It is introduced to circumvent RIP constraints.
Router Protocols

Router Protocols

Source

Q4. What is a Routing Table?

The routing table kept in a router is critical to its operation. The routing table in networking stores the routes that are accessible for all destinations. The router checks the routing table to identify the best route for sending data packets.

There are two kinds of routing tables:

  • Static Routing Table: The routes in this table are fed manually and are not automatically renewed. It is appropriate for small networks with 2-3 routers.
  • Dynamic Routing Table: In this case, the router uses routing protocols to communicate with other routers in order to discover the available routes. It is designed for larger networks with a large number of routers.

Leave a Reply

Your email address will not be published.

Our Latest Blogs


Data centre

How Optical Interconnect Enables Data Centre Disaggregation

We are in the middle of an unprecedented data explosion. Not only are we generating more data, but also consuming...
Read More
Optical Interconnect Technology

6 Key Benefits of Optical Interconnect Technology

We keep hearing about building future-ready 5G and FTTH networks around the world. At the heart of these networks are...
Read More
Fiber Deployment Solutions

Implementation of a Robust Fiber Deployment Process

Our telecommunication industry has witnessed various stages of transformation in India. It has experienced massive growth over the last few...
Read More
Data centre

Complete Guide to Managed Data Centre Services

A physical facility with rows of hardware components with lights blinking is a familiar scene in many movie scenes we...
Read More
5G

Fibre Deployment: Key to the Success of 5G in India

India has incredible potential for growth and progress, particularly in rural areas. To unlock these possibilities, it is essential to...
Read More
Data centre

Data Centre Colocation Services

A colocation data center is just another physical facility that hosts computer hardware, server, and other components. Additionally, it provides...
Read More
Optical Fiber

Fiber Optic Deployment: The Future of Communication

With the emergence of the digital era, business houses are registering good growth, and the demand for faster and more...
Read More
Data centre

Building Infrastructure For Next-Generation Computing: Data Center Services

Outlay on data centers and cloud infrastructure increased by more than 30% last year as the transition to the cloud...
Read More
cloud services

Complete Guide to Managed Cloud Infrastructure Services

We have all come across the word cloud in the last few years and know that it is associated with...
Read More
NaaS

Accelerating Your Network Transformation with NaaS

NaaS, or "network as a service," rents a computer network service to users. It refers to a kind of cloud...
Read More
Optical Fiber

The Fibre Journey: One element, billion connections

It is astonishing how fibre networks have brought all of us closer and made our lives even better by enabling...
Read More
RAN Domain orchestration

An in-depth guide for implementing a domain orchestrator

Telcos have now started prioritizing automation; there are several factors responsible for this. Companies continuously commoditize traditional resources and use...
Read More
Machine Learning Techniques

Using Machine Learning Techniques to Predict the Cost of Repairing Hard Failures in Underground Fiber Optics Networks

Predicting the cost of repairing hard failures in underground fiber optics networks is a complex task that requires advanced machine...
Read More
FTTH

How Fiber to the Home Broadband Is Revolutionizing Internet Connectivity?

The internet has become an integral part of our lives. We rely on it for everything from communication to entertainment...
Read More
Uncategorized

How to Get Ahead in Service Management & Orchestration?

Service management and orchestration, or SMO, provides the crucial automation necessary for Open RAN architecture. It enables telcos to automate...
Read More
5G Open RAN

Securing 5G Open RAN architecture

In the world of mobile communications, open RAN is a buzzing subject. The idea is to create an architecture for...
Read More
IOT(Internet Of Things)

Exponential growth of IoT and its security in network services

By 2026, there will be more than 26 billion linked devices on the planet. Although there is great potential, there...
Read More
Data centre

Building Agile Future Ready Data Centers

Data centers are the most critical aspects of a business in the twentieth century. Most companies have a cyber element;...
Read More
Data centre

Designing a secure data center network architecture

Data centers remain an essential aspect of our increasingly digital society, where most corporate communication occurs online. They can house...
Read More
Robust Fiber Network

Building a robust fiber network: A necessity for 5G

Just Imagine waking up one day and seeing every gadget being connected and the internet lag becoming extinct like dinosaurs....
Read More

Our Services


Data centre

How Optical Interconnect Enables Data Centre Disaggregation

We are in the middle of an unprecedented data explosion. Not only are we generating more data, but also consuming...
Read More
Optical Interconnect Technology

6 Key Benefits of Optical Interconnect Technology

We keep hearing about building future-ready 5G and FTTH networks around the world. At the heart of these networks are...
Read More
Fiber Deployment Solutions

Implementation of a Robust Fiber Deployment Process

Our telecommunication industry has witnessed various stages of transformation in India. It has experienced massive growth over the last few...
Read More
Data centre

Complete Guide to Managed Data Centre Services

A physical facility with rows of hardware components with lights blinking is a familiar scene in many movie scenes we...
Read More
5G

Fibre Deployment: Key to the Success of 5G in India

India has incredible potential for growth and progress, particularly in rural areas. To unlock these possibilities, it is essential to...
Read More
Data centre

Data Centre Colocation Services

A colocation data center is just another physical facility that hosts computer hardware, server, and other components. Additionally, it provides...
Read More
Optical Fiber

Fiber Optic Deployment: The Future of Communication

With the emergence of the digital era, business houses are registering good growth, and the demand for faster and more...
Read More
Data centre

Building Infrastructure For Next-Generation Computing: Data Center Services

Outlay on data centers and cloud infrastructure increased by more than 30% last year as the transition to the cloud...
Read More
cloud services

Complete Guide to Managed Cloud Infrastructure Services

We have all come across the word cloud in the last few years and know that it is associated with...
Read More
NaaS

Accelerating Your Network Transformation with NaaS

NaaS, or "network as a service," rents a computer network service to users. It refers to a kind of cloud...
Read More
Optical Fiber

The Fibre Journey: One element, billion connections

It is astonishing how fibre networks have brought all of us closer and made our lives even better by enabling...
Read More
RAN Domain orchestration

An in-depth guide for implementing a domain orchestrator

Telcos have now started prioritizing automation; there are several factors responsible for this. Companies continuously commoditize traditional resources and use...
Read More
Machine Learning Techniques

Using Machine Learning Techniques to Predict the Cost of Repairing Hard Failures in Underground Fiber Optics Networks

Predicting the cost of repairing hard failures in underground fiber optics networks is a complex task that requires advanced machine...
Read More
FTTH

How Fiber to the Home Broadband Is Revolutionizing Internet Connectivity?

The internet has become an integral part of our lives. We rely on it for everything from communication to entertainment...
Read More
Uncategorized

How to Get Ahead in Service Management & Orchestration?

Service management and orchestration, or SMO, provides the crucial automation necessary for Open RAN architecture. It enables telcos to automate...
Read More
5G Open RAN

Securing 5G Open RAN architecture

In the world of mobile communications, open RAN is a buzzing subject. The idea is to create an architecture for...
Read More
IOT(Internet Of Things)

Exponential growth of IoT and its security in network services

By 2026, there will be more than 26 billion linked devices on the planet. Although there is great potential, there...
Read More
Data centre

Building Agile Future Ready Data Centers

Data centers are the most critical aspects of a business in the twentieth century. Most companies have a cyber element;...
Read More
Data centre

Designing a secure data center network architecture

Data centers remain an essential aspect of our increasingly digital society, where most corporate communication occurs online. They can house...
Read More
Robust Fiber Network

Building a robust fiber network: A necessity for 5G

Just Imagine waking up one day and seeing every gadget being connected and the internet lag becoming extinct like dinosaurs....
Read More