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Delivering business value with SD-WAN

Jan. 16, 2019 By Tony Dunphy

Escalating carrier costs, inflexible configuration, slow deployment, security risks and network management headaches. Sounds familiar? You’re not alone.

Software-defined wide-area networking (SD-WAN) represents a simplified, flexible and cost-effective alternative to traditional WAN solutions, improving the performance of business applications both in the cloud and on-premises. Not all solutions are created equal, the more value drivers your SD-WAN vendor can address the quicker you will realize the return on your SD-WAN investment.

SD-WAN AUSTRALIA


As SD-WAN solutions rapidly mature, innovative service providers continue to evolve their offering to provide optimised solutions that can deliver a truly competitive advantage to enterprises in terms of reduced CapEx, lower operating costs, improved network performance and game-changing analytics.

What business challenges does SD-WAN address?

Business ChallengeSD-WAN CapabilitiesBusiness Value
Manage ROI› Augment or replace your existing MPLS network with lower-cost Internet links
› Flexible, rapid low-touch deployment (using physical appliance or Network Functions Virtualization (VNF)
› Remove requirement for Virtual Private Network (VPN) and security hardware
› Simplify ongoing operations, enabling business transformation, with the cloud orchestrator
Reduce cost of network ownership
Accelerate Access to Cloud Apps› Improves cloud application performance by intelligently breaking out Internet traffic at the edge. Backhauling Internet traffic from the branch to the data centre doesn’t make sense in a cloud-first world
› Enable a multi-cloud strategy using Amazon Web Services, Microsoft Azure, Google Cloud, Softlayer and more
Improve productivity
Maximise Availability, Performance and Optimize Bandwidth› SD-WAN dynamically load balances across multiple links to deliver high availability and flexible capacity - issues that cripple traditional Telco MPLS networks › Delivering application-level SLAs over any transport using link optimisation and dynamic steering › Error correct to achieve MPLS-style performance using a mix of transport types including consumer broadband
› Deliver resiliency by aggregating multiple links, and use all available bandwidth
› Overcome the effects of high latency with fully integrated, optional on-demand WAN optimisation
› Enabled devices automatically route network packets along the most appropriate links and improve application performance
› SD-WAN overcomes the complexity of traditional MPLS environments - resulting in additional latency and poor user experiences - by automatically routing traffic directly through the most appropriate path and handling security closer to the edge
Enhance user experience
Improve Network Resilience› Twin edge appliances deliver resilient High Availability (HA) cluster architecture › Establish virtual tunnels across multiple links with sub-second failover in case of degrading link quality › Provide the highest level of resiliency while ensuring design simplicity via an intelligent software stackIncrease business uptime
Deliver reliable, contemporary security measures› Segment apps based on simple policies
› Employ a zero-trust security model based on an app-whitelist approach
› Secure cloud-driven provisioning
› Orchestrate security policies with service chaining e.g. Check Point, Fortinet, Palo Alto Networks, Zscaler
› SD-WAN provides a secure overlay independent of your connectivity. Vendors continually invest in developing and deploying the most reliable and contemporary security measures possible
› Turn Internet connections into secure VPNs using SD-WAN encryption tools.
› Native zone-based firewalls and access controls to identify and block suspicious behaviour complement this capability
› Dynamic path selection delivers better resilience and is programmed smarter delivering a more secure environment
Accelerate problem resolution
Provide Powerful Visibility and Control› Quickly address outages and their causes with deep, real-time visibility into application and network performance (including packet loss, latency and jitter)
› Run reports to analyze bandwidth usage statistics and WAN metrics
› Investigate cloud application usage, traffic patterns and link loading
Accelerate problem resolution
Simplify Architecture and Deploy Quickly› Eliminate routers as the SD-WAN edge device combines routing and firewall
› Permits easy security service chaining › Manage configuration edge to edge – without branch IT staff - using the Cloud Orchestrator
› Extremely simple provisioning
› Rapid deployment is now a reality. SD-WAN is deployed in days, not months – and without the need for IT involvement on site.
› Benefit from greater agility and faster application delivery
Accelerate problem resolution
Improve Automation› Create central business intent policies to define how application traffic is routed between sites
› Simply orchestrate and automate the deployment of consolidated network functions such as firewall
› Manage, configure, report and maintain branch office network services with a single pane-of-glass orchestrator
Accelerate problem resolution
Integrate Seamlessly with Existing WAN› Integrate with existing routers ‘in line’ and slowly remove them given time to minimise disruption
› Overlay and consolidate existing MPLS and Internet access networks under contract
› Use Internet services securely with encrypted tunnels and service chaining to cloud security services
Accelerate problem resolution
Gain visibility of the WAN› Central orchestration provides deep insight into granular path performance, application usage and network trafficAccelerate problem resolution


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