Tag Archives: Application Performance

29 Oct

SD-WAN Growing Use Cases for the Cloud

SD-WAN: Growing Use Cases for the Cloud

It’s remarkable how fast software-defined wide-area networking (SD-WAN) has gained momentum. Many people ask why. The answer is: SD-WAN is expanding the functionality of automating and management access to cloud applications.

The primary trigger for the growth and interest in SD-WAN is the shift, over the past decade, of a massive amount of applications to the cloud (both private and public). Networks in the client-server era were built to access applications that were housed either at an enterprise site or, more rarely, in a private data center. But the cloud shifted the game — creating the need for fast access to applications wherever they reside, including the cloud when accessed across the Internet.

Cloud Connection Challenges

From the CIO or CTO’s perspective, cloud has many benefits but also presents many challenges from the network and security point of view. Cloud applications can speed the velocity and agility of IT, enabling your workforce to connect and build on new applications on demand.

But the challenge is that you need to build a new infrastructure to support these cloud applications. There are several challenges to connecting your workforce to this new world of agile cloud applications. Here are a few:

Application Performance: Cloud means there are many routes for workers to connect – and generally they do so using the network, not always under control of the corporate network. They could be using Internet broadband to connect to a cloud application or they might be on a corporate WAN. SD-WAN technology can add network intelligence to the corporate WAN to recognize which applications are being accessed and connect them in the most efficient, cost effective way. It can provide Internet breakout to make sure that general Internet traffic is not routed through expensive private data-center connections (such as MPLS). And furthermore, SD-WAN technology can be used to connect directly to recognize the most common cloud applications (Microsoft Office 365, Salesforce), and connect to application-specific gateways that speed up applications access.

Security: With the increased use of the Internet and cloud technologies, it’s harder for IT staff to assure security when employees are using the network to connect to the cloud. SD-WAN can enable additional network visibility and security functions that assure that cloud applications are being accessed in a secure way. More importantly, by enabling network branches and endpoints with SD-WAN, IT staff can gain more insight into how the networks are being used and implement security policies.

Agility and Automation: In the hardware-based WAN world, networks were connected with complicated hardware configurations and leased lines, making changes to the network topology and architecture difficult. In order to connect to the cloud, a more responsive network is needed to gain control and visibility over cloud connections. With SD-WAN, networks can be more quickly orchestrated and changed using software, increasing the speed with which IT and networking staff can respond to changing business demand. In addition, SD-WAN deployments can often be set up using software-based automation tools such as templates.

End-User Attraction: Making Life Easier

What’s most powerful about SD-WAN is that it has the potential to solve several of these challenges at once, by providing an integrated, software-driven platform for automating network policy and applications.

Cloud applications mean that traffic flows within the network have drastically changed and become inefficient. The technology to handle these new traffic flows is embedded in many SD-WAN platforms.

SD-WAN emerged with a few use cases anchored to the need for fast cloud access, but those use cases are now expanding, according to Futuriom research.  That is because the WAN is a key enabler — and also possibly stumbling block — for cloud applications.

So how exactly does SD-WAN do that? The MEF, a global industry alliance comprised of more than 150 networking technology and service-provider organizations, is working to reduce the confusion surrounding SD-WAN technologies and solutions. As part of their work the MEF has identified the following as being fundamental capabilities of SD-WAN managed services:

  • Secure, IP-based virtual overlay network
  • Transport-independence of underlay network
  • Service assurance of each SD-WAN tunnel
  • Application-driven packet forwarding
  • High availability through multiple WAN links
  • Policy-based packet forwarding
  • Service automation via centralized management, control and orchestration
  • The MEF also identified some value-added services that are beyond the fundamental SD-WAN service offering. This includes WAN optimization and advanced security services.

These expanding capabilities of SD-WAN show why it’s growing so fast – it’s become the Swiss army knife of WAN automation and management. This is why IT and network managers have taken a liking to the approach is that streamlines the management of many of challenges posed to given users a better experience in connecting to the cloud.

FatPipe Networks has been developing and delivering traffic management solutions for over 17 years and was “SD-WAN before SD-WAN was cool”- Gartner.   With 12 seminal patents and a comprehensive suite that addresses any SD-WAN need, FatPipe Networks is a must for any WAN administrator considering or updating their WAN traffic management needs

24 Sep

What’s in an SD-WAN?

What’s in an SD-WAN?

By R. Scott Raynovich, Principal Analyst Futuriom

Software-defined wide-area networking (SD-WAN) technology combines many desired enterprise networking features – including security, bandwidth optimization, and application acceleration – and delivers them with a cloud-managed networking architecture.

One of the primary benefits of SD-WAN technology is that it implements new network services and features in software, without requiring hardware upgrades. Enterprise and service-provider buyers are interested in the multiple benefits of SD-WAN, including improving and managing broadband Internet, reducing network costs for both connectivity and operating expense (opex), and improved management and automation. Service providers are aware of this trend and are scrambling to put together managed services offerings, as their MPLS offerings will clearly be replaced by SD-WAN services in the long term.

The Network’s Cloud Evolution

One of the big trends with information technology is the move to the cloud. Enterprises now expect to buy IT services, on-demand, from the cloud. The network is moving to the cloud as well. Enterprise network managers seek the agility and flexibility of managing their network from the cloud, while at the same time getting locked into proprietary equipment on expensive private lines. Gains in Internet availability and bandwidth optimization technology, such as WAN optimization, de-duplication, load-balancing, and link balancing, have become more sophisticated, enabling enterprises to leverage Internet broadband for business applications. This is driving the rapid expansion of the SD-WAN market, which provides all of this functionality in a cloud-delivered model

The Network’s Cloud Evolution

Futuriom’s ongoing interviews with enterprise end users as well as service providers delivering SD-WAN reveals the following goals in connecting the WAN in these new cloud environments:

  • Optimize and accelerate WAN traffic to the cloud
  • Improve overall network security
  • Reduce costs related to WAN bandwidth
  • Leverage multiple access technologies such as fiber, DSL, and wireless
  • Increased flexibility in CPE so that management can be outsourced or updated with software-only upgrades
  • Improve capability to purchase, provision, and manage network services via the cloud, using software

Customers can solve all of these problems with a single SD-WAN offering that addresses these challenges with specific features. Take a look at the features that can now be typically included in an SD-WAN package:

Let’s highlight why all of these SD-WAN features are important.

Router replacement and Open CPE: Managing proprietary hardware and customer premises equipment (CPE), including branch-office routers, can be expensive and time consuming. SD-WAN can be used to simplify the deployment and management of CPE – especially if you are a retail company that has to manage hundreds or thousands of branches. SD-WAN functionality can be delivered on open, commercial off-the-shelf (COTS) hardware and managed from the cloud, helping to streamline and automate management.

Enhanced Security and Cloud VPN: One of the allures of SD-WAN technology is that it can be used to deploy a virtual private network (VPN) as a software overlay using end-to-end encryption. This helps meet security requirements for businesses that may want to connect branch offices or retail outlets but also have high security requirements. But SD-WAN platforms can also be used to deliver value-added security services such as stronger encryption, malware detection, and intrusion detection services (IDS). Security is becoming an important checklist item for SD-WAN.

WAN Optimization: SD-WAN can be used to improve the performance of applications on the network. WAN optimization, once a discrete function delivered with a hardware or software appliances, is being integrated into SD-WAN functionality. Many SD-WAN technologies include WAN optimization functionality and we expect this to be a checklist item in SD-WAN deployments.

Application Performance Enhancement: Cloud WAN solutions can be built that optimize access to cloud applications by monitoring traffic and routing higher-priority business applications ahead of leisure services such as Netflix and YouTube. Additionally, many WAN services can peer directly with cloud services to offer a “fast lane” to the business applications. These techniques can be used to “offload” enterprise WAN backhaul, routing cloud traffic directly to the source using a combination of broadband technologies. This will also have the effect of challenging the traditional ADC model of providing these services as part of a discrete hardware device. In addition, some SD-WAN vendors are working with cloud vendors to set up specialized cloud gateways and POPs in cloud datacenters to provide more direct access to cloud applications.

Cloud Management: As we have outlined, SD-WAN functionality can be deployed using COTS hardware and then managed from the cloud. This means that new network features, functionality, and updates can be managed with software over the network, rather than forklift upgrades, yielding a network-as-a-service model.

The SD-WAN market is now rapidly moving to customer deployments and accelerating because it delivers a more flexible, agile, and feature-rich platform to manage the enterprise WAN. Futuriom believes that in 2019 the market will continue to accelerate and drive into the billions of dollars, as it replaces some legacy technologies for VPN, ADC, edge routers, and firewalls. The market is consolidating around software-delivered and adaptive WAN services that can connect either through thin customer clients or industry-standard CPE.

FatPipe Networks have been selling software defined networking solutions for over 20 years and have specialized in providing customers with best of breed security, (one of the only SD-WAN providers with FIPS 140-2 government certification) reliability, flexibility (can support up to 15 interfaces in one device) and is easy to manage, providing a single pane interface view of the entire network.

FatPipe Networks www.fatpipeinc.com