472,779 Members | 1,816 Online
Bytes | Software Development & Data Engineering Community
Post Job

Home Posts Topics Members FAQ

Join Bytes and contribute your articles to a community of 472,779 developers and data experts.

The Business Impact of WAN Transformation with SD-WAN

SD-WAN is one of the hottest technologies in the networking space. Being “hot”, though, doesn't mean that SD-WAN has a solid business case to support it. How can IT executives justify the investment in this technology? In short, SD-WAN promises to have a positive business impact in the following areas:

● Improve network capacity, availability, and agility to maximize end user productivity

● Optimize global connectivity for fixed and mobile users to support global growth

● Enable strategic IT initiatives such as cloud infrastructure and applications migration

Improves WAN capacity, availability, and agility

The network is the foundation of the business. Historically, MPLS was the default WAN choice to maximize uptime and ensure predictable network behavior. But, MPLS was expensive and subject to capacity and availability constraints.

SD-WAN enables locations to use multiple WAN transports concurrently including MPLS, cable, xDSL, or LTE, and dynamically route traffic based on transport quality and application needs.

SD-WAN enables the business to boost overall capacity by aggregating all transports and reduce cost by utilizing affordable Internet services. Agility is also improved, because IT can deploy new sites quickly with available transports and not wait for the lengthy rollout of premium services, such as MPLS.

Business Impact
SD-WAN maximizes end user productivity by boosting the WAN’s capacity and resiliency. SD-WAN also supports quick alignment of the enterprise network with emerging business needs such as onboarding of new locations and users.

Optimizes global connectivity for fixed and mobile users

Organizations often use global carrier MPLS for consistent network experience for their remote locations. The only other option available to lower costs is to use the inconsistent and unpredictable public Internet. Mobile users can’t leverage MPLS-connected locations on the road, and have to accept service levels provided by the Internet.

As discussed before, SD-WAN enables businesses to use inexpensive, last-mile Internet connections within the WAN. For regional businesses, and especially in the developed world, the Internet is pretty reliable over short distances, but using the public Internet can be a challenge in a global context. IT organizations must use predictable, global connectivity to ensure consistent service levels.

In a classic hybrid WAN setup, MPLS provides this consistency while the Internet adds capacity at lower cost. To reduce costs even further, affordable MPLS alternatives, such as SLA-backed cloud networks, can ultimately replace MPLS services. Mobile users remain an afterthought, even for SD-WAN, and can’t benefit from either legacy MPLS or SD-WAN appliances. Yet, these users have the same needs for optimal global access. Only a subset of SD-WAN solutions can extend their fabrics to mobile users globally.

Business Impact

Global connectivity requires a consistent and predictable transport. To reduce or eliminate the cost of MPLS in a global context, SD-WAN solutions must incorporate an affordable MPLS alternative that ideally can extend to branch locations and mobile users.

Enables strategic IT initiatives

Many enterprises are migrating, or considering the migration of, all or parts of their applications to cloud datacenters, such as Amazon AWS and Microsoft Azure. This change, alongside the use of public cloud applications, such as Office 365, makes legacy network designs obsolete.

Instead of focusing network planning on the branch to datacenter routes using dedicated MPLS connections, network architects must address the increased share of traffic going to the cloud. Wasteful backhauling, also known as the Trombone Effect, is saturating MPLS links and adds latency because the traffic goes to the datacenter only to be securely sent to the Internet. Sending Internet traffic directly from the branch makes more sense.

Direct Internet access in the branch, using SD-WAN, enables Internet- and cloud-bound traffic to directly exit the branch without backhauling. There is a cost to this optimization, as security now has to be applied at the branch. Simple firewalls incorporated into SD-WAN appliances have limited inspection and threat protection capabilities; and a full blown security stack in every branch creates appliance sprawl and increases complexity.

Firewall as a Service (FWaaS) is an emerging technology that enables IT to secure Internet traffic at the branch without deploying physical appliances alongside SD-WAN appliances.

Security is one consideration. Optimizing cloud access from the branch is another. Even the branch offices of regional companies often need to access distant cloud resources. MPLS was designed for branch-to-physical datacenter connectivity not branch-to-cloud. Alternative approaches, such as cloud networks, can optimally support cloud traffic by extending the network fabric to both customer locations and cloud destinations, and by using private SLA-backed backbones to optimize performance.

Business Impact

SD-WAN can support strategic cloud migration initiatives by securing and optimizing traffic between business locations, mobile users, and cloud resources. Appropriate SD-WAN architectures, built for secure and optimized cloud connectivity, should be evaluated.


SD-WAN is a strategic WAN transformation initiative. Better network availability, capacity, and agility, high performance global connectivity, and secure and optimized cloud integration, are all major business impact drivers. Addressing them holistically will ensure a high return on investment in the SD-WAN solution.

Dave Greenfield is the secure networking evangelist at Cato Networks
May 14 '18 #1
1 4669
220 128KB
"SD-WAN is one of the hottest technologies in the networking space." That reads like spam.

So, I scrolled down and found that Rabbit (one of the protectors of this realm), has removed a link.

I do not care what the link was or what the logic of its removal was or any more information about it.

Rabbit removed a link.

Bad spammer. Bad.

I therefore had no more interest in reading this posting.

Maybe if someone wrote a process that looked up all of such spammer's postings on all sites and then supplied an automated process that blocked all of them (even the one's with the SSL [actually very breakable] security) from showing in web browsers.

Thank you Rabbit.
Jul 22 '20 #2

Sign in to post your reply or Sign up for a free account.

Similar topics

by: Jain, Pranay Kumar | last post by:
Hi All, We have created a simple application that takes a dataset and generates the data in Excel schema format. It uses an xslt file to do the transformation for excel 2002 and so on. We are...
by: kids_pro | last post by:
What is the different between Business rule & data validation? How much impact does it give in OOP concept? Thanks, Kid
by: YellowFin Announcements | last post by:
Whitepaper: "Yellowfin Reporting" enables Embedded Business Intelligence -------------------------------------------------------------------------------- Embedded reports are a standard...
by: MS newsgroup | last post by:
I don't have clear reasons why we need business logic layer and data logic layer instead of having only data logic layer. Are there any good reasons for that?
by: HendrikLeder | last post by:
Hello everybody :-) Next year I`ll write my diploma in computer science for business (It`s a degree in Germany) and I`ve some questions about the topic. The diploma will handle about refactoring...
by: olduncleamos | last post by:
Hi all, What is, in general, the preferred practice to transfer data between business objects and the data layer? To be more specific, I have a couple of business objects with state data that...
by: Aryan | last post by:
Hi, I am implementing Business object, but while implementing this I want to have DataTable or DataSet as part of Business Object. For example, I want to bind controls directly to these Business...
by: R. P. | last post by:
I wonder how to indicate in a stylesheet that character entities in an element are not to be transformed as would be the case in XML-to-XML transforms. I want to keep those & " and other character...
by: Rina0 | last post by:
Cybersecurity engineering is a specialized field that focuses on the design, development, and implementation of systems, processes, and technologies that protect against cyber threats and...
by: isladogs | last post by:
The next Access Europe meeting will be on Wednesday 2 August 2023 starting at 18:00 UK time (6PM UTC+1) and finishing at about 19:15 (7.15PM) The start time is equivalent to 19:00 (7PM) in Central...
by: erikbower65 | last post by:
Using CodiumAI's pr-agent is simple and powerful. Follow these steps: 1. Install CodiumAI CLI: Ensure Node.js is installed, then run 'npm install -g codiumai' in the terminal. 2. Connect to...
by: kcodez | last post by:
As a H5 game development enthusiast, I recently wrote a very interesting little game - Toy Claw ((http://claw.kjeek.com/))。Here I will summarize and share the development experience here, and hope it...
by: DJRhino | last post by:
Private Sub CboDrawingID_BeforeUpdate(Cancel As Integer) If = 310029923 Or 310030138 Or 310030152 Or 310030346 Or 310030348 Or _ 310030356 Or 310030359 Or 310030362 Or...
by: lllomh | last post by:
Define the method first this.state = { buttonBackgroundColor: 'green', isBlinking: false, // A new status is added to identify whether the button is blinking or not } autoStart=()=>{
by: lllomh | last post by:
How does React native implement an English player?
by: Mushico | last post by:
How to calculate date of retirement from date of birth
by: DJRhino | last post by:
Was curious if anyone else was having this same issue or not.... I was just Up/Down graded to windows 11 and now my access combo boxes are not acting right. With win 10 I could start typing...

By using Bytes.com and it's services, you agree to our Privacy Policy and Terms of Use.

To disable or enable advertisements and analytics tracking please visit the manage ads & tracking page.