Designing an SD-WAN Network Fabric: Benefits of Direct Internet Access at Every Site

Benefits of Direct Internet Access in SD-WAN Network Fabric

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Question

What are two benefits of designing an SD-WAN network fabric with direct Internet access implemented at every site? (Choose two.)

Answers

A. It decreases latency to applications hosted by public cloud service provider.

B. It decreases latency on Internet circuits.

C. It increases the speed of delivery of site deployments through zero-touch provisioning.

D. It increases the total available bandwidth on Internet circuits.

E. It alleviates network traffic on MPLS circuits.

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Explanations

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A. B. C. D. E.

AE.

An SD-WAN (Software-Defined Wide Area Network) is a type of network architecture that utilizes software to control the connectivity and management of multiple geographically dispersed sites. One of the key features of an SD-WAN network is the ability to provide direct Internet access (DIA) at every site, which can bring numerous benefits, including:

Decreased latency to applications hosted by public cloud service provider: When a site has direct Internet access, traffic can be routed directly to public cloud service providers such as Amazon Web Services (AWS) or Microsoft Azure. This can reduce latency and improve performance for applications hosted by these providers, as traffic doesn't have to traverse the network core or backhaul through the data center.
Increased total available bandwidth on Internet circuits: With direct Internet access at each site, traffic can be load-balanced across multiple Internet circuits. This can increase the total available bandwidth for the site, which can improve application performance and user experience.

Other potential benefits of SD-WAN networks with DIA at every site may include:

Decreased latency on Internet circuits: By bypassing the traditional hub-and-spoke architecture of a network and providing DIA, latency can be reduced on Internet circuits.
Increased speed of delivery of site deployments through zero-touch provisioning: With SD-WAN, site deployments can be automated through zero-touch provisioning, which can reduce deployment time and minimize manual configuration errors.
Alleviated network traffic on MPLS circuits: Direct Internet access can alleviate network traffic on MPLS (Multiprotocol Label Switching) circuits, which can be more expensive and have limited bandwidth.

Overall, implementing an SD-WAN network fabric with direct Internet access at every site can bring significant benefits, including improved application performance, increased bandwidth, reduced latency, and simplified site deployments.

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