{"id":592,"date":"2022-06-07T06:58:40","date_gmt":"2022-06-07T06:58:40","guid":{"rendered":"https:\/\/infraon.io\/blog\/?p=592"},"modified":"2025-09-30T11:39:06","modified_gmt":"2025-09-30T11:39:06","slug":"what-is-sd-wan","status":"publish","type":"post","link":"https:\/\/infraon.io\/blog\/what-is-sd-wan\/","title":{"rendered":"What is SD-WAN"},"content":{"rendered":"\n<h2 class=\"wp-block-heading has-large-font-size\"><span class=\"ez-toc-section\" id=\"What_is_SD-WAN\"><\/span><strong>What is SD-WAN<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img fetchpriority=\"high\" decoding=\"async\" width=\"561\" height=\"454\" src=\"https:\/\/infraon.io\/blog\/wp-content\/uploads\/2022\/06\/SD-WAN-infraon-1.png\" alt=\"\" class=\"wp-image-7026\" title=\"\"><figcaption class=\"wp-element-caption\">What is SD-Wan?<\/figcaption><\/figure>\n\n\n\n<p class=\"has-medium-font-size\">SD-WAN is software to help manage the WAN. It makes the management and operation of a WAN by decoupling the networking hardware from its control mechanism and making it more straightforward.<\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size\">SD-WAN is a transformative technology used to simplify IT infrastructure management through a virtual WAN architecture that securely connects users to their applications. To understand SD-WAN, we should start with the traditional WAN<\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\"><span class=\"ez-toc-section\" id=\"What_is_traditional_WAN\"><\/span><strong>What is traditional WAN?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size\">The function of the traditional WAN (wide-area network) was to connect users at the campus or branch to applications hosted on servers in a Data Center. Traditionally, dedicated MPLS circuits were used to help ensure security and reliable connectivity. This doesn&#8217;t work in a cloud-centric world. Some of the traditional WAN&#8217;s limitations are:<\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Limited to enterprise, branch, and data center.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SaaS-application performance problem<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>WAN expenses can rise with an inefficient use of dedicated and backup circuits<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The complexity of connecting multiple types of users with various types of devices to various cloud environments<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img decoding=\"async\" width=\"748\" height=\"368\" data-src=\"https:\/\/infraon.io\/blog\/wp-content\/uploads\/2023\/07\/SD-WAN-architecture-with-MPLS-integration.-1.jpg\" alt=\"\" class=\"wp-image-7027 lazyload\" title=\"\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 748px; --smush-placeholder-aspect-ratio: 748\/368;\"><figcaption class=\"wp-element-caption\">SD-WAN architecture with MPLS integration.<\/figcaption><\/figure>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size\">SD-WAN addresses the current IT challenges. This new approach of SD-WAN to network connectivity helps reduce operational costs and improve resource utilization for multisite deployments. Network administrators can use bandwidth efficiently and ensure high-performance levels for all applications without sacrificing security or data privacy.<\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size\">There are three components to this virtualized network: The SD-WAN edge, the Controller, and the orchestrator.<\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The network endpoints reside at the SD-WAN edge &#8211; a branch office, a remote <a href=\"https:\/\/www.sdxcentral.com\/data-center\/definitions\/software-defined-data-center\/\" target=\"_blank\" rel=\"noopener\">data center<\/a>, or a cloud platform.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>The Controller offers centralized management and enables the operators to view the network through a single pane of glass. Furthermore, it made it possible to set a policy for the orchestrator to execute.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>An SD-WAN Orchestrator is the virtualized manager for &#8211; the network, overseeing traffic and applying policy and protocol set by operators.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" data-src=\"https:\/\/infraon.io\/blog\/wp-content\/uploads\/2023\/11\/nms-ent-to-end.svg\" alt=\"\" class=\"wp-image-12355 lazyload\" title=\"\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\"><\/figure>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\"><span class=\"ez-toc-section\" id=\"AdvantagesBenefits_of_SD-WAN\"><\/span><strong>Advantages\/Benefits of SD-WAN<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Transport independence across <a href=\"https:\/\/www.cisco.com\/c\/en\/us\/products\/ios-nx-os-software\/multiprotocol-label-switching-mpls\/index.html\" target=\"_blank\" rel=\"noopener\">MPLS<\/a>, 4G\/ 5G LTE, and other connections help reduce costs.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Improved application performance and increased agility.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>High availability, predictable service for all critical enterprise applications<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Multiple hybrid active links for all network scenarios<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Software-as-a-Service (<a href=\"https:\/\/community.cisco.com\/t5\/licensing-enterprise-agreements\/cloud-saas-overview\/ta-p\/3652296?attachment-id=144769\" target=\"_blank\" rel=\"noopener\">SaaS<\/a>) and public cloud applications could offer an optimized user experience and efficiency.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Simplified operations with automation and cloud-based management.<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Enhanced security<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\"><span class=\"ez-toc-section\" id=\"How_Does_SD-WAN_Work\"><\/span><strong>How Does SD-WAN Work?<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size\">SD-WAN creates an overlay to virtualize the WAN with centralized control to simplify the management and deployment of branch-office services.<\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\"><span class=\"ez-toc-section\" id=\"Enterprise-Grade_SD-WAN\"><\/span><strong>Enterprise-Grade SD-WAN<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size\">The software-defined wide-area networking (SD-WAN) market is at an inflection point. This powerful technology has moved beyond initial deployments and proofs of concept and graduated to full-scale, enterprise-wide adoption.<\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size\">SD-WAN&#8217;s rapid rate of enterprise adoption has been driven by a handful of important factors, including:<\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Integrated management of multiple WAN connectivity types, including MPLS, broadband, and LTE<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A centralized application policy controller that enables dynamic path selection across application links<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size\">Next-generation SD-WAN solutions should focus on integrated security, multi-cloud connectivity, and application reliability.<\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img decoding=\"async\" width=\"788\" height=\"131\" data-src=\"https:\/\/infraon.io\/blog\/wp-content\/uploads\/2023\/07\/Key-Benift-SD-WAN-architecture-1.png\" alt=\"\" class=\"wp-image-7028 lazyload\" title=\"\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 788px; --smush-placeholder-aspect-ratio: 788\/131;\"><figcaption class=\"wp-element-caption\">Key Benefit SD-WAN architecture<\/figcaption><\/figure>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size\">Meanwhile, COVID-19 has changed the dynamics in enterprise networking. The global pandemic forced organizations to reconsider how their WANs support those users who access the network from more distributed sites &#8211; whether from a traditional campus or branch, from home, or another remote location. SD-WAN platforms must be agile enough to support these various deployment options. In conjunction with more ways to deploy SD-WAN, customers are also exploring new modes of consuming SD-WAN infrastructure via more flexible consumption licensing and procurement models.<\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img decoding=\"async\" width=\"789\" height=\"308\" data-src=\"https:\/\/infraon.io\/blog\/wp-content\/uploads\/2023\/07\/SA-WAN-1.png\" alt=\"\" class=\"wp-image-7029 lazyload\" title=\"\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 789px; --smush-placeholder-aspect-ratio: 789\/308;\"><figcaption class=\"wp-element-caption\">SA &#8211; WAN<\/figcaption><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"SD-WAN_Use_Cases\"><\/span><strong>SD-WAN Use Cases<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\"><span class=\"ez-toc-section\" id=\"SD-WAN_to_provide_temporary_VPN_connections_to_the_Cloud_for_DevOps\"><\/span><strong>SD-WAN to provide temporary VPN connections to the Cloud for DevOps<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size\">There was pressure on DevOps teams to work faster because of modern software development practices. They needed to set up and take down test environments quickly. Waiting for VPN connections to the Cloud became unacceptable. The same was true in the case of semi-custom applications deployed. SD-WAN technology overcame the challenge of quickly and securely connecting the users to cloud-based and semi-custom applications. SD-WAN cut the time down to minutes instead of days.<\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\"><span class=\"ez-toc-section\" id=\"Establishing_one-to-many_connections_of_cloud_apps_to_branchremote_offices\"><\/span><strong>Establishing one-to-many connections of cloud apps to branch\/remote offices<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size\">In a situation where cloud-based applications will be used from multiple locations, setting up secure connections to all user sites will be slow and more prone to errors. However, if this task were to be performed with the automation capabilities of SD-WAN, it could be completed in ten minutes or less. SD-WAN enables the set up of secure connections in full- or partial-mesh topologies that interconnect enterprise sites, VPCs, and cloud regions.<\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\"><span class=\"ez-toc-section\" id=\"Managing_network_traffic_with_performance_and_security_requirements\"><\/span><strong>Managing network traffic with performance and security requirements<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size\">SD-WAN products have a GUI-based, central console to implement management policies aligned with your business needs. It can be done with greater speed and consistency than the traditional approach of configuring individual devices via a command-line interface. It&#8217; also makes it simpler to set up a policy that will send the network traffic of certain users via only secure connections. Moreover, a policy to only route unified communications traffic over high-capacity circuits can also be set up. Any changes in the policy or a new one can be translated into operational procedures, or rules can be downloaded to all managed devices.<\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\"><span class=\"ez-toc-section\" id=\"Setting_up_hybrid_WAN_topologies_that_connect_enterprise_sites\"><\/span><strong>Setting up hybrid WAN topologies that connect enterprise sites<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size\">Enterprises rely on MPLS to connect enterprise sites. By moving the WAN traffic onto broadband Internet, you can realize substantial savings. SD-WAN enables easy setting up of secure and hybrid WANs that blend MPLS in different topologies. An administrator can use policy-based management to set priorities and automatically balance traffic across WAN links as circumstances change.<\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\"><span class=\"ez-toc-section\" id=\"Connecting_branchremote_sites_directly_to_the_Internet\"><\/span><strong>Connecting branch\/remote sites directly to the Internet<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size\">The increasing dependence on cloud-based applications in organizations is a driver in this use case. Setting up Internet break-outs from branch\/ remote offices can be slow, inefficient, and prone to errors in traditional methods. SD-WAN simplifies, and the process gets speeded up. You can also design a <em>shadow appliance<\/em> on the central management console as a placeholder for your physical device. The <em>zero-touch provisioning <\/em>enables bringingthe SD-WAN device online without needing an administrative action when plugged in at a remote location.<\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\"><span class=\"ez-toc-section\" id=\"InfraonIMS_%E2%80%93_SD-WAN_Monitoring_Scope\"><\/span><strong>InfraonIMS \u2013 SD-WAN Monitoring Scope<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size\"><a href=\"https:\/\/infraon.io\/infraon-ims.html\" target=\"_blank\" rel=\"noreferrer noopener\">Infraon IMS<\/a> monitors the key aspects related to Performance and Events in an SD-WAN setup.<\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size\">Advanced performance features like IPSLA, Flow Monitoring, Deep Packet Inspection, etc., are also getting monitored. Some of the major monitoring features are highlighted below.<\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" style=\"font-size:25px\">Device Monitoring<\/h3>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Device status (All SD-WAN components)<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>CPU\/ Memory utilization<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" style=\"font-size:25px\">Link Monitoring<\/h3>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Link availability<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Throughput\/utilization<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Link Error\/packet drop<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Link downtime<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" style=\"font-size:25px\">IPSLA Monitoring<\/h3>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Jitter\/ packet loss\/latency<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" style=\"font-size:25px\">Flow Monitoring<\/h3>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Top Source Traffic &#8211; Top Source of Traffic in the Network<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Top Destination Traffic- Top Destination of Traffic in the Network<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Top Talkers -Top talkers between Source and Destination<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Application DPI &#8211; Top Application Traffic in the Network by Volume<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h3 class=\"wp-block-heading\" style=\"font-size:25px\">SD-WAN Alarms\/Events<\/h3>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Link\/interface up and down<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Control connections<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>BFD sessions<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<ul class=\"wp-block-list\">\n<li>OMP Sessions (OMP peers)<\/li>\n<\/ul>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2 class=\"wp-block-heading has-large-font-size\"><span class=\"ez-toc-section\" id=\"References\"><\/span><strong><u>References<\/u><\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size\"><a href=\"https:\/\/engage2demand.cisco.com\/LP=20906\" rel=\"nofollow noopener\" target=\"_blank\"><span class=\"has-inline-color has-vivid-cyan-blue-color\">https:\/\/engage2demand.cisco.com\/LP=20906<\/span><\/a><\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size\"><a href=\"https:\/\/www.sdxcentral.com\/networking\/sd-wan\/definitions\/software-defined-sdn-wan\/\" rel=\"nofollow noopener\" target=\"_blank\"><span class=\"has-inline-color has-vivid-cyan-blue-color\">https:\/\/www.sdxcentral.com\/networking\/sd-wan\/definitions\/software-defined-sdn-wan\/<\/span><\/a><\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size\"><a href=\"https:\/\/www.cisco.com\/c\/en\/us\/solutions\/enterprise-networks\/sd-wan\/what-is-sd-wan.html\" target=\"_blank\" rel=\"noopener\"><span class=\"has-inline-color has-vivid-cyan-blue-color\">https:\/\/www.cisco.com\/c\/en\/us\/solutions\/enterprise-networks\/sd-wan\/what-is-sd-wan.html<\/span><\/a><\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<p class=\"has-medium-font-size\"><a href=\"https:\/\/www.riverbed.com\/blogs\/5-use-cases-for-sd-wan.html\" target=\"_blank\" rel=\"noopener\"><span class=\"has-inline-color has-vivid-cyan-blue-color\">https:\/\/www.riverbed.com\/blogs\/5-use-cases-for-sd-wan.html<\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is SD-WAN SD-WAN is software to help manage the WAN. It makes the management and operation of a WAN by decoupling the networking hardware from its control mechanism and making it more straightforward. SD-WAN is a transformative technology used to simplify IT infrastructure management through a virtual WAN architecture that securely connects users to [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":2621,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rank_math_title":"What is SD-WAN? Best guide 2025 | Infraon","rank_math_description":"Discover how SD-WAN simplifies WAN management by separating hardware from control, boosting efficiency. Learn more! | Infraon","rank_math_focus_keyword":"SD-Wan","footnotes":""},"categories":[34],"tags":[],"class_list":["post-592","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-sd-wan"],"pvc_views":2663,"rank_math_description":"Discover how SD-WAN simplifies WAN management by separating hardware from control, boosting efficiency. Learn more! | Infraon","rank_math_keywords":"","_links":{"self":[{"href":"https:\/\/infraon.io\/blog\/wp-json\/wp\/v2\/posts\/592","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/infraon.io\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/infraon.io\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/infraon.io\/blog\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/infraon.io\/blog\/wp-json\/wp\/v2\/comments?post=592"}],"version-history":[{"count":2,"href":"https:\/\/infraon.io\/blog\/wp-json\/wp\/v2\/posts\/592\/revisions"}],"predecessor-version":[{"id":12476,"href":"https:\/\/infraon.io\/blog\/wp-json\/wp\/v2\/posts\/592\/revisions\/12476"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/infraon.io\/blog\/wp-json\/wp\/v2\/media\/2621"}],"wp:attachment":[{"href":"https:\/\/infraon.io\/blog\/wp-json\/wp\/v2\/media?parent=592"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/infraon.io\/blog\/wp-json\/wp\/v2\/categories?post=592"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/infraon.io\/blog\/wp-json\/wp\/v2\/tags?post=592"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}