A hub, a switch, a wireless access point and a router and their OSI Model Layers

February 5, 2021

Switch
Spread the love

Hub

A hub is a network device which connects computers together for communication. They are commonly used to connect different segments of a Local Area Network (LAN). The hub lacks knowledge to identify the exact destination address of a packet so it forwards information to all ports on the network. Hubs operate at the Physical layer of the OSI Model. The Open Systems Interconnection (OSI) is the standard for the implementation of protocols in the layers. To learn about what the physical layer of the OSI Model is; Check our previous post on The 7 layers of the OSI Model and their purpose

Switch

Network Switch

Unlike hubs, a switch receives the arriving data or packets from a port and forwards it to only the designated port or MAC address the packets are intended to. The switch works at the datalink layer (Layer 2) of the OSI Model. For more detail about the datalink layer of the OSI Model; Check our previous post on The 7 layers of the OSI Model and their purpose

Some switches such as layer 3 switches can operate at the third (3rd) layer of the OSI Model where routing occurs.

Switches can be used in an organization to provide secure access to the Intranet by staff

Router

Router

A router’s work is a bit complex compared to that of a switch and a hub. Routers transmit data based on the routing table information and IP address. A router can be used to connect two separate networks and can provide secure connection between the connected networks. It works at the network layer (Layer 3) of the OSI Model

Routers can be used by organizations to provide network access between their remote offices.

Wireless Access Point

Wireless Access Point

Unlike hubs and switches, a wireless Access Point provides connection without wires. It uses signals for packet transmission. It allows mobility and gives mobile devices such as mobile phones the opportunity to connect to a wired network without wires. In this case, only the wireless access point is connected to the wired network. It operates at the datalink layer of the OSI Model.

Wireless Access Points can be use by an organization to provide Intranet access for staff (via smartphone/tablet and desktop) in their offices

0 Comments

Submit a Comment

Get A Website With An Affordable Hosting Plan For Your Business Today

Related Articles

3 different approaches to acquiring an Enterprise Information System

Are you an planning to acquire an information system for your organization and wondering how? You can acquire an information system in several ways. In this article, we will list 3 basic approaches to acquiring an information system for your organization as well as...

Why Network Components Need Addresses

Before we dive in to answer the question of why network components need addresses, let's have a look at network components. A computer network is usually comprised of physical components which are also referred to as hardware components and software components....

Stay Up to Date With The Latest News & Updates