Case Studies/SD-WAN Deployment
Case StudyFrom Legacy MPLS to Modern SD-WAN.
Cost Savings. Better Performance. Safer Network.
The Engagement
A major well-known UK business operating across multiple sites across London approached BTLITC with an ageing network infrastructure. Their existing setup relied on a legacy MPLS network from a major provider that was costly, inflexible, and no longer meeting the demands of a modern distributed operation.
BTLITC conducted a full network discovery and audit across all locations, assessed the existing infrastructure, identified gaps, and designed a comprehensive Fortinet SD-WAN solution underpinned by modern leased line connectivity from a leading UK provider. The result was a modern, secure, cost-effective network replacing legacy MPLS with centralised management and 24/7 visibility.
Client
Major Well-Known UK Business
Location
Multiple Sites Across London
Services
Discovery, Audit, SD-WAN Design and Deployment, Monitoring
Technology
Fortinet SD-WAN, SolarWinds
Outcome
NIS2 Ready, Legacy MPLS Replaced, Costs Reduced
What the Client Was Facing
High Legacy MPLS Costs
The existing legacy MPLS network was expensive, locked into rigid contracts, and no longer cost-effective for a modern distributed operation.
Legacy MPLS replaced with cost-effective modern connectivity
Fragmented Monitoring
No single view of network health across sites. Incidents were slow to identify with no centralised operations dashboard available to the team.
60% reduction in incident response time achieved
Compliance and Security Gaps
Growing regulatory requirements demanded better network segmentation, real-time monitoring, and documented evidence of proactive security measures.
Full NIS2 compliance readiness delivered
Legacy MPLS vs Modern SD-WAN
Legacy MPLS
ReplacedFortinet SD-WAN
DeployedWhat BTLITC Delivered
Phase 1 Discovery
Network Discovery and Audit
Full infrastructure audit across all locations. Mapped existing topology, performed gap analysis, assessed monitoring coverage, and defined the target architecture.
Phase 2 Design
SD-WAN Architecture Design
Designed a resilient Fortinet Secure SD-WAN solution with intelligent traffic routing, load balancing, QoS for business-critical applications, and failover mechanisms.
Phase 3 Connectivity
Modern Leased Line Provisioning
Worked with a leading UK connectivity provider to replace legacy MPLS circuits with modern leased line connectivity across all sites as the SD-WAN underlay.
Phase 4 Deployment
SD-WAN Deployment and Monitoring
Deployed Fortinet SD-WAN across all locations with SolarWinds unified monitoring, delivering a single 24/7 operations dashboard for the client team.
Measurable Outcomes Delivered
Faster Incident Response
Significant reduction in time to identify and respond to network incidents
Network Infrastructure
Legacy MPLS fully replaced with scalable cost-effective SD-WAN
Full Network Visibility
Continuous monitoring across all locations with real-time alerting
Compliance Ready
Network segmentation and incident reporting aligned to regulatory requirements
Platforms and Tools
Facing Similar Network Challenges?
Talk to our team about how BTLITC can audit, design, and deploy the right SD-WAN solution for your organisation.