🧪Undertaking a Proof of Concept Before Implementing Last Mile SD-WAN🧑‍🔬

Ronald BartelsRonald Bartels
4 min read

In today’s fast-paced digital landscape, businesses constantly seek ways to optimise their networks to achieve greater efficiency, scalability, and cost savings. A Software-Defined Wide Area Network (SD-WAN) offers an innovative solution to address these needs, but many organisations remain hesitant about committing to this relatively new technology. A Proof of Concept (POC) provides the ideal middle ground—allowing businesses to evaluate SD-WAN's real-world impact before full implementation.

Why Consider a POC for SD-WAN?

While SD-WAN is lauded for its ability to enhance network performance, reduce costs, and simplify management, businesses often face concerns about its potential ROI, impact on operations, and interoperability with existing infrastructure. A POC addresses these concerns by offering a controlled environment to test SD-WAN's capabilities without committing to a full-scale deployment.

Benefits of a POC:

  1. Validation of Performance Claims: Real-world testing demonstrates whether SD-WAN delivers promised benefits like enhanced bandwidth, improved cloud performance, and simplified network management.

  2. Stakeholder Confidence: IT teams and business leaders gain first-hand experience, fostering trust in the technology.

  3. Informed Decision-Making: A successful POC provides tangible data to justify investment, reducing uncertainty for executive teams.

  4. Customisation Insights: Understanding how SD-WAN integrates with unique business needs and environments.


Key Steps to Conducting a SD-WAN POC

1. Define Goals and Scope

Before starting a POC, clearly outline what the business aims to achieve with SD-WAN. Typical goals include:

  • Increasing bandwidth and improving application performance.

  • Enhancing scalability to support future growth.

  • Reducing operational and infrastructure costs.

Decide whether to run the POC in a production, lab, or hybrid environment. Each option has its pros and cons:

  • Production: Provides the most accurate insights but carries the risk of disrupting ongoing operations.

  • Lab: Safer but may not replicate real-world conditions precisely.

  • Hybrid: Offers a balanced approach, with lab simulations for initial testing and limited production trials for validation.


2. Select POC Sites

Choose representative sites to deploy SD-WAN components. Consider including:

  • Remote offices or branches with different topologies.

  • Legacy systems to evaluate interoperability.

  • High-traffic areas for stress testing.


3. Prepare a Test Plan

Develop a comprehensive test plan detailing scenarios to evaluate SD-WAN's capabilities:

  • Bandwidth allocation and optimisation.

  • Cloud application performance.

  • Troubleshooting and escalation processes.

  • Integration with legacy hardware and multi-vendor environments.

Simulate real-world challenges, such as traffic surges or equipment failures, to assess the SD-WAN platform's resilience.


4. Establish Success Criteria

Determine measurable outcomes for a successful POC:

  • Seamless integration with existing systems.

  • Improvements in network performance metrics, such as latency and uptime.

  • Cost savings compared to current infrastructure.

  • Ease of use for IT teams and stakeholders.


5. Monitor & Analyse Results

During the POC, gather data from analytics dashboards and user feedback. Key metrics include:

  • Application performance improvements.

  • Reduced complexity in managing the network.

  • Operational efficiency gains for IT teams.


6. Generate a Final Report

Compile findings into a final report detailing:

  • Successes and failures.

  • Recommendations for adjustments in the full implementation.

  • ROI projections based on POC results.

This report should provide stakeholders with a clear understanding of SD-WAN's impact and guide the next steps.


Fusion’s Role in POC Success

Fusion’s SD-WAN solution simplifies POC execution, offering flexible deployment options that seamlessly integrate with existing network infrastructure. Fusion’s expert team collaborates with businesses to:

  • Define POC objectives and success criteria.

  • Provide technical support during deployment.

  • Offer actionable insights through real-time analytics.

With Fusion, businesses can test SD-WAN’s capabilities in real-world scenarios, ensuring a smooth transition to full implementation.


POC Checklist

Use this checklist to plan your SD-WAN POC effectively:

  1. Identify Goals: What does the business aim to achieve with SD-WAN?

  2. Define Scope: Which sites, systems, and environments will be included?

  3. Create a Test Plan: What scenarios and metrics will be evaluated?

  4. Determine Success Criteria: What defines a successful POC?

  5. Plan for ROI Analysis: How will cost-benefit impacts be measured?

  6. Engage Vendors: Are all the infrastructure vendors prepared to support a multi-vendor environment?

  7. Evaluate Interoperability: How well does SD-WAN integrate with existing infrastructure?


Wrap

A well-executed POC demonstrates the tangible benefits of SD-WAN while addressing concerns about ROI and operational disruption. For businesses seeking a faster, more agile network, a POC offers the assurance needed to move forward confidently. With Fusion’s expertise and cutting-edge SD-WAN platform, your business can successfully transition to a future-ready network while minimising risk.


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Written by

Ronald Bartels
Ronald Bartels

Driving SD-WAN Adoption in South Africa