{"id":4433,"date":"2023-07-24T09:20:30","date_gmt":"2023-07-24T09:20:30","guid":{"rendered":"https:\/\/arzhost.com\/blogs\/?p=4433"},"modified":"2025-09-19T15:05:47","modified_gmt":"2025-09-19T10:05:47","slug":"ethtool-command-change-speed-duplex-ethernet-card-linux","status":"publish","type":"post","link":"https:\/\/arzhost.com\/blogs\/ethtool-command-change-speed-duplex-ethernet-card-linux\/","title":{"rendered":"Ethtool Command Change Speed Duplex Ethernet Card Linux"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_74 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\" style=\"cursor:inherit\">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\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><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><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/arzhost.com\/blogs\/ethtool-command-change-speed-duplex-ethernet-card-linux\/#Introduction_Optimizing_Network_Interface_Settings_for_Performance\" >Introduction: Optimizing Network Interface Settings for Performance<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/arzhost.com\/blogs\/ethtool-command-change-speed-duplex-ethernet-card-linux\/#Understanding_Auto-Negotiation_Full_Duplex_and_Half_Duplex_in_Network_Connections\" >Understanding Auto-Negotiation, Full Duplex, and Half Duplex in Network Connections<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/arzhost.com\/blogs\/ethtool-command-change-speed-duplex-ethernet-card-linux\/#What_is_a_Duplex_Mismatch_Explanation_and_Troubleshooting\" >What is a Duplex Mismatch? Explanation and Troubleshooting<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/arzhost.com\/blogs\/ethtool-command-change-speed-duplex-ethernet-card-linux\/#Your_Ideal_Hosting_Plan_Awaits%E2%80%94Sign_Up_and_Unlock_Exclusive_Savings\" >Your Ideal Hosting Plan Awaits\u2014Sign Up and Unlock Exclusive Savings!<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/arzhost.com\/blogs\/ethtool-command-change-speed-duplex-ethernet-card-linux\/#How_to_Set_Up_a_Network_Interface_Card_NIC_Using_the_Ethtool_Command\" >How to Set Up a Network Interface Card (NIC) Using the Ethtool Command<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/arzhost.com\/blogs\/ethtool-command-change-speed-duplex-ethernet-card-linux\/#Ethtool_Command_to_Change_and_Optimize_Ethernet_Adapter_Settings\" >Ethtool Command to Change and Optimize Ethernet Adapter Settings<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/arzhost.com\/blogs\/ethtool-command-change-speed-duplex-ethernet-card-linux\/#Using_the_ethtool_opt_Variable_to_Set_Ethtool_Command_Settings_Permanently\" >Using the ethtool opt Variable to Set Ethtool Command Settings Permanently<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/arzhost.com\/blogs\/ethtool-command-change-speed-duplex-ethernet-card-linux\/#Remote_Work_Made_Easy_%E2%80%93_Sign_Up_Now_Save_Big_Today\" >Remote Work Made Easy \u2013 Sign Up Now &amp; Save Big Today!<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/arzhost.com\/blogs\/ethtool-command-change-speed-duplex-ethernet-card-linux\/#Conclusion_Maximizing_Ethernet_Performance_with_Proper_NIC_Configuration\" >Conclusion: Maximizing Ethernet Performance with Proper NIC Configuration<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/arzhost.com\/blogs\/ethtool-command-change-speed-duplex-ethernet-card-linux\/#FAQs_Frequently_Asked_Questions\" >FAQs (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-11\" href=\"https:\/\/arzhost.com\/blogs\/ethtool-command-change-speed-duplex-ethernet-card-linux\/#1_What_is_the_purpose_of_auto-negotiation_in_network_connections\" >1: What is the purpose of auto-negotiation in network connections?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/arzhost.com\/blogs\/ethtool-command-change-speed-duplex-ethernet-card-linux\/#2_What_is_a_duplex_mismatch_and_how_can_it_affect_network_performance\" >2: What is a duplex mismatch, and how can it affect network performance?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/arzhost.com\/blogs\/ethtool-command-change-speed-duplex-ethernet-card-linux\/#3_How_can_I_check_my_current_NIC_settings_using_the_ethtool_command\" >3: How can I check my current NIC settings using the ethtool command?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/arzhost.com\/blogs\/ethtool-command-change-speed-duplex-ethernet-card-linux\/#4_Can_I_permanently_set_NIC_settings_using_the_ethtool_command\" >4: Can I permanently set NIC settings using the ethtool command?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/arzhost.com\/blogs\/ethtool-command-change-speed-duplex-ethernet-card-linux\/#5_How_does_full_duplex_improve_Ethernet_performance_compared_to_half_duplex\" >5: How does full duplex improve Ethernet performance compared to half duplex?<\/a><\/li><\/ul><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Introduction_Optimizing_Network_Interface_Settings_for_Performance\"><\/span><strong>Introduction: Optimizing Network Interface Settings for Performance<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>How well your servers communicate depends on how your Ethernet card is configured. Here at <a href=\"https:\/\/www.arzhost.com\/\"><strong>ARZ Host<\/strong><\/a>, we will discuss the <span style=\"color: #000000;\"><strong>Ethtool command change speed duplex ethernet card Linux<\/strong><\/span> to modify the settings.<\/p>\n\n\n\n<p>To maintain network connectivity with the least amount of effort, it is vital to comprehend how Auto-Negotiation, Speed, and Duplex settings affect the transport of data.<\/p>\n\n\n\n<p>This tutorial will demonstrate how to use the <strong>ethtool commands in Linux<\/strong> (<strong><a href=\"https:\/\/www.centos.org\/\" target=\"_blank\" rel=\"noopener\">CentOS<\/a><\/strong>) to modify the Speed, Duplex, and Auto-Negotiation settings.<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Command window or terminal<\/li>\n\n\n\n<li>A user account having sudo or root permissions<\/li>\n\n\n\n<li>Installed was the Ethtool configuration tool.<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Understanding_Auto-Negotiation_Full_Duplex_and_Half_Duplex_in_Network_Connections\"><\/span><strong><strong>Understanding Auto-Negotiation, Full Duplex, and Half Duplex in Network Connections<\/strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>In half-duplex mode, a device can alternately send and receive packets. This setting prevents a gadget from carrying out both tasks at once.<\/p>\n\n\n\n<p>A device can send and receive packets simultaneously when its mode is set to full-duplex.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"536\" title=\"full duplex and half duplex in network connection\" src=\"https:\/\/arzhost.com\/blogs\/wp-content\/uploads\/2025\/09\/full-duplex-and-half-duplex-in-network-connection-1024x536.jpg\" alt=\"full duplex and half duplex in network connection\" class=\"wp-image-13403\" srcset=\"https:\/\/arzhost.com\/blogs\/wp-content\/uploads\/2025\/09\/full-duplex-and-half-duplex-in-network-connection-1024x536.jpg 1024w, https:\/\/arzhost.com\/blogs\/wp-content\/uploads\/2025\/09\/full-duplex-and-half-duplex-in-network-connection-300x157.jpg 300w, https:\/\/arzhost.com\/blogs\/wp-content\/uploads\/2025\/09\/full-duplex-and-half-duplex-in-network-connection-768x402.jpg 768w, https:\/\/arzhost.com\/blogs\/wp-content\/uploads\/2025\/09\/full-duplex-and-half-duplex-in-network-connection.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">full duplex and half duplex in network connection<\/figcaption><\/figure><\/div>\n\n\n<p>An auto-negotiation mechanism allows a device to select the best transmission mode based on the characteristics of its counterparts. Auto-negotiation should always be on because it enables devices to select the fastest method for data transfer.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_is_a_Duplex_Mismatch_Explanation_and_Troubleshooting\"><\/span><strong><strong>What is a Duplex Mismatch? Explanation and Troubleshooting<\/strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>The process does not function when a device with enabled auto-negotiation connects to a device that is not using this signaling mechanism. Although the duplex mode cannot be accurately detected, the end of the connection with an active auto-negotiation can nevertheless determine the speed of the other end.<\/p>\n\n\n\n<div class=\"wp-block-uagb-call-to-action uagb-block-349afcb9 wp-block-button uag-blocks-common-selector\" style=\"--z-index-desktop:479;;--z-index-tablet:undefined;;--z-index-mobile:undefined;\"><div class=\"uagb-cta__wrap\"><h2 class=\"uagb-cta__title\"><span class=\"ez-toc-section\" id=\"Your_Ideal_Hosting_Plan_Awaits%E2%80%94Sign_Up_and_Unlock_Exclusive_Savings\"><\/span><a href=\"https:\/\/arzhost.com\/web-hosting\/\">Your Ideal Hosting Plan Awaits\u2014Sign Up and Unlock Exclusive Savings!<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2><p class=\"uagb-cta__desc\">Get Ahead with Reliable Hosting at <strong><a href=\"https:\/\/arzhost.com\/\">ARZ Host<\/a><\/strong>\u2014Limited Time 90% Discount!<\/p><\/div><div class=\"uagb-cta__buttons\"><a href=\"https:\/\/arzhost.com\/web-hosting\/\" class=\"uagb-cta__button-link-wrapper wp-block-button__link\" target=\"_self\" rel=\"noopener noreferrer\">Read More<\/a><\/div><\/div>\n\n\n\n<p>Typically, the connection&#8217;s auto-negotiating end operates at half-duplex while the other end may operate at full-duplex. This circumstance is known as a duplex mismatch.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"536\" title=\"ideal hosting plan\" src=\"https:\/\/arzhost.com\/blogs\/wp-content\/uploads\/2025\/09\/ideal-hosting-plan-1024x536.jpg\" alt=\"ideal hosting plan\" class=\"wp-image-13404\" srcset=\"https:\/\/arzhost.com\/blogs\/wp-content\/uploads\/2025\/09\/ideal-hosting-plan-1024x536.jpg 1024w, https:\/\/arzhost.com\/blogs\/wp-content\/uploads\/2025\/09\/ideal-hosting-plan-300x157.jpg 300w, https:\/\/arzhost.com\/blogs\/wp-content\/uploads\/2025\/09\/ideal-hosting-plan-768x402.jpg 768w, https:\/\/arzhost.com\/blogs\/wp-content\/uploads\/2025\/09\/ideal-hosting-plan.jpg 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\">ideal hosting plan<\/figcaption><\/figure><\/div>\n\n\n<p>A duplex mismatch does not entirely halt communication. Small data volumes and single packets do not immediately result in problems. However, the speed drastically decreases when a lot of data is transferred from either end.<\/p>\n\n\n\n<p>The connection is functional, but the performance is compromised because of the unequal data transfer rate, which could result in packet loss.<\/p>\n\n\n\n<p>To explore more technical topics, including setting up and running applications like Java, check out our article on <a href=\"https:\/\/arzhost.com\/blogs\/how-to-install-java-on-raspberry-pi\/\" data-type=\"link\" data-id=\"https:\/\/arzhost.com\/blogs\/how-to-install-java-on-raspberry-pi\/\"><strong>Java on Raspberry Pi<\/strong><\/a>. It offers a step-by-step guide for installing and configuring Java on Raspberry Pi.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Set_Up_a_Network_Interface_Card_NIC_Using_the_Ethtool_Command\"><\/span><strong><strong>How to Set Up a Network Interface Card (NIC) Using the Ethtool Command<\/strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>You may retrieve data and modify your NIC settings using the <strong>Network Interface Card configuration command ethtool<\/strong>. These options contain several different settings, such as Speed, Duplex, and Auto-Negotiation.<\/p>\n\n\n\n<p>You must be aware of the name of your network interface card in order to continue.<\/p>\n\n\n\n<p><iframe title=\"YouTube video player\" src=\"https:\/\/www.youtube.com\/embed\/WRqujFsR3Js\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n\n\n\n<p><u>Use the command shown below in the command terminal to determine the name of your network interface card<\/u><\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><textarea class=\"code-block-pro-copy-button-textarea\" aria-hidden=\"true\" readonly>ifconfig<\/textarea><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">ifconfig<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>The name of the device interface card is provided in the output. Read How to Install and Use ifconfig for more information on this command.<\/p>\n\n\n\n<p>The device in the aforementioned example is identified as enp0s3.<\/p>\n\n\n\n<p>Once you have identified the device&#8217;s name, use the command Ethtool device name to see its current Speed, Auto-Negotiation, and Duplex mode settings.<\/p>\n\n\n\n<p><u>In the instance we&#8217;re using, the command is<\/u>:<\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><textarea class=\"code-block-pro-copy-button-textarea\" aria-hidden=\"true\" readonly>enp0s3 Ethtool<\/textarea><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">enp0s3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">Ethtool<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>The output indicates that Auto-Negotiation is activated, the Duplex is set to Full, and the speed is currently 1000 Mb\/s.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ethtool_Command_to_Change_and_Optimize_Ethernet_Adapter_Settings\"><\/span><strong><strong>Ethtool Command to Change and Optimize Ethernet Adapter Settings<\/strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p><u>You can modify the settings by specifying the speed, duplex, and autoneg values with the Ethtool -s command in the following format:<\/u><\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><textarea class=\"code-block-pro-copy-button-textarea\" aria-hidden=\"true\" readonly>[Device name]: sudo Ethtool -s autoneg [on\/off] speed [10\/100\/1000] duplex [half\/full]<\/textarea><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9FF\">[<\/span><span style=\"color: #D8DEE9\">Device<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">name<\/span><span style=\"color: #D8DEE9FF\">]: <\/span><span style=\"color: #D8DEE9\">sudo<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">Ethtool<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">s<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">autoneg<\/span><span style=\"color: #D8DEE9FF\"> [<\/span><span style=\"color: #D8DEE9\">on<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9\">off<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #D8DEE9\">speed<\/span><span style=\"color: #D8DEE9FF\"> [<\/span><span style=\"color: #B48EAD\">10<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #B48EAD\">100<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #B48EAD\">1000<\/span><span style=\"color: #D8DEE9FF\">] <\/span><span style=\"color: #D8DEE9\">duplex<\/span><span style=\"color: #D8DEE9FF\"> [<\/span><span style=\"color: #D8DEE9\">half<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9\">full<\/span><span style=\"color: #D8DEE9FF\">]<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p><u>For instance, the following would be the command to set the speed to 1000Mb\/s with the duplex mode set to full and the auto-negotiation set to on:<\/u><\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><textarea class=\"code-block-pro-copy-button-textarea\" aria-hidden=\"true\" readonly>enp0s3 autoneg on speed 1000 duplex full with sudo Ethtool<\/textarea><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">enp0s3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">autoneg<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">on<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">speed<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1000<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">duplex<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">full<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">with<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">sudo<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">Ethtool<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>The Ethtool [device name] command is necessary to confirm that the changes have been applied.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Using_the_ethtool_opt_Variable_to_Set_Ethtool_Command_Settings_Permanently\"><\/span><strong><strong>Using the ethtool opt Variable to Set Ethtool Command Settings Permanently<\/strong><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Ethtool modifications are by default undone when a system is restarted.<\/p>\n\n\n\n<div class=\"wp-block-uagb-call-to-action uagb-block-684ca900 wp-block-button uag-blocks-common-selector\" style=\"--z-index-desktop:479;;--z-index-tablet:undefined;;--z-index-mobile:undefined;\"><div class=\"uagb-cta__wrap\"><h2 class=\"uagb-cta__title\"><span class=\"ez-toc-section\" id=\"Remote_Work_Made_Easy_%E2%80%93_Sign_Up_Now_Save_Big_Today\"><\/span><a href=\"https:\/\/arzhost.com\/rdps\/\" data-type=\"link\" data-id=\"https:\/\/arzhost.com\/rdps\/\">Remote Work Made Easy \u2013 Sign Up Now &amp; Save Big Today!<\/a><span class=\"ez-toc-section-end\"><\/span><\/h2><p class=\"uagb-cta__desc\">Secure &amp; Fast Window VPS by <strong>ARZ Host<\/strong>\u2013 Start for Just $18\/month with Our Limited-Time Offer!<\/p><\/div><div class=\"uagb-cta__buttons\"><a href=\"https:\/\/arzhost.com\/rdps\/\" class=\"uagb-cta__button-link-wrapper wp-block-button__link\" target=\"_self\" rel=\"noopener noreferrer\">Read More<\/a><\/div><\/div>\n\n\n\n<p><u>Edit the file for the device interface to apply custom settings each time the system boots:<\/u><\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><textarea class=\"code-block-pro-copy-button-textarea\" aria-hidden=\"true\" readonly>The command line iffy-enp0s3 sudo vi \/etc\/sysconfig\/network-scripts.<\/textarea><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">The<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">command<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">line<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">iffy<\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">enp0s3<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">sudo<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">vi<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9\">etc<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9\">sysconfig<\/span><span style=\"color: #81A1C1\">\/<\/span><span style=\"color: #D8DEE9\">network<\/span><span style=\"color: #81A1C1\">-<\/span><span style=\"color: #D8DEE9\">scripts<\/span><span style=\"color: #ECEFF4\">.<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p><u>Use the following syntax to add the desired values as a line at the end of the file:<\/u><\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><textarea class=\"code-block-pro-copy-button-textarea\" aria-hidden=\"true\" readonly>ETHTOOL OPTS= &#8220;speed [100|1000|10000] Duplex autoneg [on off] (half\/full)&#8221;<\/textarea><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">ETHTOOL<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">OPTS<\/span><span style=\"color: #81A1C1\">=<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #ECEFF4\">&quot;<\/span><span style=\"color: #A3BE8C\">speed [100|1000|10000] Duplex autoneg [on off] (half\/full)<\/span><span style=\"color: #ECEFF4\">&quot;<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p><u>For instance:<\/u><\/p>\n\n\n\n<div class=\"wp-block-kevinbatdorf-code-block-pro\" data-code-block-pro-font-family=\"Code-Pro-JetBrains-Mono\" style=\"font-size:.875rem;font-family:Code-Pro-JetBrains-Mono,ui-monospace,SFMono-Regular,Menlo,Monaco,Consolas,monospace;line-height:1.25rem;--cbp-tab-width:2;tab-size:var(--cbp-tab-width, 2)\"><span style=\"display:block;padding:16px 0 0 16px;margin-bottom:-1px;width:100%;text-align:left;background-color:#2e3440ff\"><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"54\" height=\"14\" viewBox=\"0 0 54 14\"><g fill=\"none\" fill-rule=\"evenodd\" transform=\"translate(1 1)\"><circle cx=\"6\" cy=\"6\" r=\"6\" fill=\"#FF5F56\" stroke=\"#E0443E\" stroke-width=\".5\"><\/circle><circle cx=\"26\" cy=\"6\" r=\"6\" fill=\"#FFBD2E\" stroke=\"#DEA123\" stroke-width=\".5\"><\/circle><circle cx=\"46\" cy=\"6\" r=\"6\" fill=\"#27C93F\" stroke=\"#1AAB29\" stroke-width=\".5\"><\/circle><\/g><\/svg><\/span><span role=\"button\" tabindex=\"0\" style=\"color:#d8dee9ff;display:none\" aria-label=\"Copy\" class=\"code-block-pro-copy-button\"><textarea class=\"code-block-pro-copy-button-textarea\" aria-hidden=\"true\" readonly>Speed 1000 Duplex Full Automatic On ETHTOOL OPTS<\/textarea><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" style=\"width:24px;height:24px\" fill=\"none\" viewBox=\"0 0 24 24\" stroke=\"currentColor\" stroke-width=\"2\"><path class=\"with-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2m-6 9l2 2 4-4\"><\/path><path class=\"without-check\" stroke-linecap=\"round\" stroke-linejoin=\"round\" d=\"M9 5H7a2 2 0 00-2 2v12a2 2 0 002 2h10a2 2 0 002-2V7a2 2 0 00-2-2h-2M9 5a2 2 0 002 2h2a2 2 0 002-2M9 5a2 2 0 012-2h2a2 2 0 012 2\"><\/path><\/svg><\/span><pre class=\"shiki nord\" style=\"background-color: #2e3440ff\" tabindex=\"0\"><code><span class=\"line\"><span style=\"color: #D8DEE9\">Speed<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #B48EAD\">1000<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">Duplex<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">Full<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">Automatic<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">On<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">ETHTOOL<\/span><span style=\"color: #D8DEE9FF\"> <\/span><span style=\"color: #D8DEE9\">OPTS<\/span><\/span><\/code><\/pre><\/div>\n\n\n\n<p>Save your changes, then close the document.<\/p>\n\n\n\n<p>Currently, the modifications take effect after each reboot and are irreversible unless the file is changed again. For more details on managing server settings, check out our article on how to <a href=\"https:\/\/arzhost.com\/blogs\/restart-web-server-centos\/\" data-type=\"link\" data-id=\"https:\/\/arzhost.com\/blogs\/restart-web-server-centos\/\"><strong>Restart Apache in CentOS<\/strong><\/a>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion_Maximizing_Ethernet_Performance_with_Proper_NIC_Configuration\"><\/span><strong>Conclusion: Maximizing Ethernet Performance with Proper NIC Configuration<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>You have successfully used the <strong>ethtool<\/strong> commands in this tutorial to modify and optimize the settings on your Network Interface Card, enhancing overall network performance.<\/p>\n\n\n\n<p>Additionally, you\u2019ve gained a deeper understanding of how <strong>Auto-Negotiation<\/strong> and <strong>Duplex modes<\/strong> directly influence server efficiency, preventing common issues like duplex mismatches that can hinder data transmission.<\/p>\n\n\n\n<p>By applying these best practices, you can now confidently fine-tune your NIC settings to maximize the speed, stability, and reliability of your network connections, ensuring that your server runs at peak performance levels.<\/p>\n\n\n\n<p>For further insights into web technologies and troubleshooting, check out our article on <a href=\"https:\/\/arzhost.com\/blogs\/what-is-an-ajax-error\/\" data-type=\"link\" data-id=\"https:\/\/arzhost.com\/blogs\/what-is-an-ajax-error\/\"><strong>what is an AJAX error<\/strong><\/a>. It covers common issues and solutions to enhance your web application&#8217;s performance.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"FAQs_Frequently_Asked_Questions\"><\/span><strong>FAQs (Frequently Asked Questions)<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_What_is_the_purpose_of_auto-negotiation_in_network_connections\"><\/span>1: <strong>What is the purpose of auto-negotiation in network connections?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Auto-negotiation automatically selects the best possible speed and duplex mode for a network interface to ensure optimal performance.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_What_is_a_duplex_mismatch_and_how_can_it_affect_network_performance\"><\/span>2: <strong>What is a duplex mismatch, and how can it affect network performance?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>A duplex mismatch occurs when two devices connected on a network use different duplex settings (one full-duplex and one half-duplex), leading to collisions and reduced network performance.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_How_can_I_check_my_current_NIC_settings_using_the_ethtool_command\"><\/span>3: <strong>How can I check my current NIC settings using the ethtool command?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>You can check your NIC settings by running <code>ethtool ethX<\/code> (replace &#8220;X&#8221; with your interface number) in the command line to view the current configuration.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Can_I_permanently_set_NIC_settings_using_the_ethtool_command\"><\/span>4: <strong>Can I permanently set NIC settings using the ethtool command?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Yes, you can use the <code>ethtool opt<\/code> variable in network configuration files to apply settings permanently across system reboots.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_How_does_full_duplex_improve_Ethernet_performance_compared_to_half_duplex\"><\/span>5: <strong>How does full duplex improve Ethernet performance compared to half duplex?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p>Full duplex allows simultaneous sending and receiving of data, reducing collisions and improving overall network speed compared to half duplex.<\/p>\n\n\n\n<p><strong>Read More:<\/strong><\/p>\n\n\n<ul class=\"wp-block-latest-posts__list wp-block-latest-posts\"><li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/arzhost.com\/blogs\/how-to-fix-403-forbidden-error-wordpress\/\">How To Fix 403 Forbidden Error WordPress<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/arzhost.com\/blogs\/how-to-get-the-most-out-of-claude-ai\/\">How To Get The Most Out Of Claude Ai<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/arzhost.com\/blogs\/bad-gateway-error-502-the-ultimate-guide-to-quick-fixes\/\">Bad Gateway Error (502): The Ultimate Guide to Quick Fixes<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/arzhost.com\/blogs\/a-deep-dive-into-todays-best-linux-distros\/\">A Deep Dive Into Today\u2019s Best Linux Distros<\/a><\/li>\n<li><a class=\"wp-block-latest-posts__post-title\" href=\"https:\/\/arzhost.com\/blogs\/domain-investor-terms-powerful-strategy\/\">Domain Investor Terms: Expert Insight on Powerful Strategy<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Introduction: Optimizing Network Interface Settings for Performance How well your servers communicate depends on how your Ethernet card is configured. Here at ARZ Host, we will discuss the Ethtool command change speed duplex ethernet card Linux to modify the settings. To maintain network connectivity with the least amount of effort, it is vital to comprehend [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6225,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31],"tags":[],"table_tags":[],"class_list":["post-4433","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-linux"],"_links":{"self":[{"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/posts\/4433","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/comments?post=4433"}],"version-history":[{"count":4,"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/posts\/4433\/revisions"}],"predecessor-version":[{"id":13406,"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/posts\/4433\/revisions\/13406"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/media\/6225"}],"wp:attachment":[{"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/media?parent=4433"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/categories?post=4433"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/tags?post=4433"},{"taxonomy":"table_tags","embeddable":true,"href":"https:\/\/arzhost.com\/blogs\/wp-json\/wp\/v2\/table_tags?post=4433"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}