Cisco ccie exam You must know about SD-WAN... (1)
1. What is SD-WAN?
"SD-WAN is a service formed by applying SDN technology to a wide area network scenario. Cisco ccie exam.This service is used to connect a wide range of enterprise networks, including enterprise branches and data centers."Although in many consulting reports or vendor solutions, SD-WAN is often limited to the networking scenarios where enterprise branch offices are interconnected.However, based on the definition of SD-WAN, the application scenarios of SD-WAN can be summarized into three categories: enterprise interconnection, data center interconnection and cloud interconnection scenarios.
The enterprise interconnection SD-EN (SDN based Enterprise Network) focuses on the WAN connection on the user side, providing an efficient SDN-based solution for the connection between the enterprise headquarters and branch offices across the WAN.SD-DCI (SDN based Data Center Interconnection) refers to an SDN-based solution established for multiple data centers of an enterprise or between an enterprise office and a data center.SDN based Cloud Exchange (CSDN) focuses more on application-side WAN connectivity, providing efficient SDN-based solutions for public, private, and increasingly rich hybrid cloud applications.Cisco ccie exam.
SD-WAN (software-defined wide area network) is an architecture that uses a software-defined network to direct traffic and improve connectivity while sending data over large geographic distances. It increases flexibility and productivity and reduces costs.
2, why companies choose SD-WAN
Although MPLS still dominates the WAN market, WAN decisions are rapidly evolving from "MPLS and SD-WAN" to "Which SD-WAN?" With the widespread adoption of SD-WAN in the marketplace, organizations need to determine how and why SD-WAN will be deployed.
SD-WAN--Improve the diversity of user experience
In a cloud-based user environment, the quality and reliability of the WAN that delivers application performance has become an important part of IT infrastructure design.Cisco ccie exam.Given the increasing commitment to improvement through user experience and enhanced application performance management, the benefits of SD-WAN technology can be easily leveraged - from agility and rapid change to multi-link failover and application prioritization -This should be an indispensable consideration.The way companies decide to deploy an SD-WAN will be key. The dominant market is the hosted SD-WAN service model, as experienced MSPs can quickly deploy solutions with significant performance and multiple built-in features from day one, which means organizations can get immediate benefits.Cisco ccie exam.These services include all aspects of SD-WAN solutions, from hardware to software, networking and connectivity, all delivered in a standard Service Level Agreement (SLA) model.Compared to the hosted service, each aspect of the service and all changes to the parameters of the service are covered by the MSP, and the alternative deployment model is SD-WAN as a service.This software-only model provides multi-tenant infrastructure settings that enable companies to quickly connect to sites while also providing IT administrators with the tools to monitor, manage, and change service parameters as needed.
Mature and confident
Of course, if an organization has the resources and confidence to manage an SD-WAN network, many of these benefits can of course be achieved immediately through an internal service model.Given the current market maturity, few companies are able to achieve the required level of confidence or skill.However, as SD-WAN maturity and confidence increase, it may be of interest.With the proliferation of cloud-based applications, businesses are becoming more application-centric, and IT is looking to dedicate more resources to monitoring application performance critical to business operations.Cisco ccie exam.These skills will increasingly be embedded in the IT team, which means that looking to the future, the SD-WAN as a service model may become more popular, cleverly aligned with next-generation application-aware monitoring and management tools,which will be key to improving the end-user experience.
Cost consideration
In terms of service models, the cost difference between managing MPLS and hosted SD-WAN services is negligible - although many of the SD-WAN technologies being developed are much more expensive than MPLS alternatives.These are feature-rich solutions, and companies need to use powerful assessment methods to determine if they really need any expensive add-ons.
The SD-WAN as a service model is significantly cheaper - but it requires additional internal resources, so the operational cost comparison will depend on the existing IT skills base and the need to add headers to manage the network.Finding and recruiting the required skills internally can result in higher costs than the managed service model.
Either way, SD-WAN offers cost and performance advantages.Of course, for those accustomed to hosting services, the faster response and automation speed provided by SD-WAN technology should enable IT managers to redistribute internal resources that were previously dedicated to managing application issues.
Publisher:IE LAB
publish Website: http://ielab.network
WhatsApp: +8617782638871
Skype:live:ielab.anna
Although MPLS still dominates the WAN market, WAN decisions are rapidly evolving from "MPLS and SD-WAN" to "Which SD-WAN?" With the widespread adoption of SD-WAN in the marketplace, organizations need to determine how and why SD-WAN will be deployed.
SD-WAN--Improve the diversity of user experience
In a cloud-based user environment, the quality and reliability of the WAN that delivers application performance has become an important part of IT infrastructure design.Cisco ccie exam.Given the increasing commitment to improvement through user experience and enhanced application performance management, the benefits of SD-WAN technology can be easily leveraged - from agility and rapid change to multi-link failover and application prioritization -This should be an indispensable consideration.The way companies decide to deploy an SD-WAN will be key. The dominant market is the hosted SD-WAN service model, as experienced MSPs can quickly deploy solutions with significant performance and multiple built-in features from day one, which means organizations can get immediate benefits.Cisco ccie exam.These services include all aspects of SD-WAN solutions, from hardware to software, networking and connectivity, all delivered in a standard Service Level Agreement (SLA) model.Compared to the hosted service, each aspect of the service and all changes to the parameters of the service are covered by the MSP, and the alternative deployment model is SD-WAN as a service.This software-only model provides multi-tenant infrastructure settings that enable companies to quickly connect to sites while also providing IT administrators with the tools to monitor, manage, and change service parameters as needed.
Mature and confident
Of course, if an organization has the resources and confidence to manage an SD-WAN network, many of these benefits can of course be achieved immediately through an internal service model.Given the current market maturity, few companies are able to achieve the required level of confidence or skill.However, as SD-WAN maturity and confidence increase, it may be of interest.With the proliferation of cloud-based applications, businesses are becoming more application-centric, and IT is looking to dedicate more resources to monitoring application performance critical to business operations.Cisco ccie exam.These skills will increasingly be embedded in the IT team, which means that looking to the future, the SD-WAN as a service model may become more popular, cleverly aligned with next-generation application-aware monitoring and management tools,which will be key to improving the end-user experience.
Cost consideration
In terms of service models, the cost difference between managing MPLS and hosted SD-WAN services is negligible - although many of the SD-WAN technologies being developed are much more expensive than MPLS alternatives.These are feature-rich solutions, and companies need to use powerful assessment methods to determine if they really need any expensive add-ons.
The SD-WAN as a service model is significantly cheaper - but it requires additional internal resources, so the operational cost comparison will depend on the existing IT skills base and the need to add headers to manage the network.Finding and recruiting the required skills internally can result in higher costs than the managed service model.
Either way, SD-WAN offers cost and performance advantages.Of course, for those accustomed to hosting services, the faster response and automation speed provided by SD-WAN technology should enable IT managers to redistribute internal resources that were previously dedicated to managing application issues.
Publisher:IE LAB
publish Website: http://ielab.network
WhatsApp: +8617782638871
Skype:live:ielab.anna
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