SD-WAN and SASE

Everything securely connected – everywhere

Integrated SD-WAN and SASE unites high-performance connectivity, zero-trust security and centralised control, delivering a WAN infrastructure that scales with your business instead of holding it back.

Security: finally one platform

Distributed sites, cloud applications, and mobile users overwhelm classic MPLS architectures every single day. Organisations that continue to run network and security as separate stacks pay twice: in cost and in risk. Fortinet SD-WAN combines intelligent link management across fibre, DSL, and LTE with native SASE: Zero-trust access, ZTNA, SWG, and CASB from a single platform.

Yesterday’s WAN is slowing today’s business

Classic WAN architectures were built for a world where applications lived in the data centre and users sat at fixed desks. That world no longer exists. SaaS applications such as Microsoft 365, Salesforce, and SAP S/4HANA have moved to the cloud, employees work in hybrid models, and branch offices require reliable, secure internet access, not just a tunnel back to headquarters.

The result of legacy architectures is predictable: applications backhauled over MPLS to the data centre before reaching the internet introduce artificial latencies of 80–200 ms. Every new branch means weeks of lead time for MPLS provisioning, manual firewall configurations, and fragmented security policies. IT teams juggle network management consoles, firewall dashboards, and SIEM systems, without a unified operational picture.

The consequences are measurable

Declining user productivity, rising operational costs and a security model that ends at the perimeter edge, exactly where modern attacks Your network was built for a world that no longer exists.

The Challenge

The cost of keeping what you have

Four signs your network is holding you back

MPLS: High Cost, Declining Value

Fixed costs and rigid contracts deliver less value with every cloud migration

MPLS circuits are provisioned at fixed bandwidths on long-term contracts, making them difficult and costly to scale as traffic demands shift. As cloud adoption increases, a growing share of this dedicated capacity is spent routing cloud-bound traffic back through the data centre before it reaches its actual destination, a structural inefficiency that adds latency and compounds cost.

Applications Everywhere, Network Nowhere

Legacy architectures assume traffic flows through a central point, your applications do

Traditional hub-and-spoke network architectures assume that traffic flows to and from a central data centre, an assumption that breaks down when applications run across public cloud, SaaS platforms, private infrastructure, and edge locations simultaneously. Network and IT teams face disproportionate operational overhead trying to manage connectivity, performance and policy consistently across an environment that was never designed to be this distributed.

Distributed Security, Distributed Risk

Independent security policies across locations create gaps an attacker only needs to find

When each site, cloud environment, and edge location manages security independently, policy inconsistencies and blind spots are inevitable and an attacker only needs to find one gap. Without centralised visibility and unified policy enforcement, detecting lateral movement or anomalous behaviour across the full environment becomes operationally unmanageable at scale.

WAN Latency Costs Productivity

Routing collab tools and cloud apps through DC detours affects every user, every

Latency-sensitive applications like video conferencing, real-time collaboration tools, cloud-hosted ERP systems degrade noticeably when forced through a central data centre before reaching their destination, even when the added delay is measured in milliseconds. Branch office users and remote workers are disproportionately affected, as their traffic travels the furthest from the application endpoints it needs to reach.

The good news: this is a solved problem

evoila has seen this exact situation across hundreds of enterprise networks. The path forward is not another workaround layered onto legacy infrastructure, it is a platform built for the way your business actually operates today. Your network can look very different in only 90 days.

Our Solution

SD-WAN meets SASE: the platform for distributed enterprises

With Fortinet SD-WAN and SASE, evoila closes the gap between network performance and security. Instead of separate boxes for routers, firewalls, and WAN optimisation, all functions converge in a single FortiGate appliance, or in the cloud-native FortiSASE platform for fully cloud-managed scenarios.
The foundation is a set of high-performance connectivity products: fibre connections as the primary link for maximum bandwidth and low latency, DSL as a cost-optimised secondary path, and LTE/5G as an always-ready failover option.

The integrated SD-WAN engine steers traffic across all available links based on application type and policy — automatically, in real time, without manual intervention. Microsoft 365 traffic breaks out directly to the internet, ERP data is prioritised over fibre, and video conferencing receives guaranteed bandwidth.

At evoila you’ll get SD-WAN and SASE combined with the lines and cellular. One stop shop for your modern WAN infrastructure.

Technologies that make the difference

Modern WAN architecture requires more than fast links and a firewall at the edge. Performance, security and connectivity resilience need to be managed as a single converged system, where each layer informs the others. The following three components deliver exactly that, each engineered for its role and built to work as one.

Fortinet SD-WAN: intelligent link management

The Fortinet SD-WAN stack is deeply integrated into the FortiOS operating system and leverages a dedicated network processor for hardware-level throughput. Applications are classified via Deep Packet Inspection and the FortiGuard Application Control database with over 5,000 signatures. The result: every application receives the optimal path, based on latency, jitter, packet loss, and defined SLA thresholds measured in real time across all links. On link failure, the engine switches to the next available path in under 300 milliseconds, transparently, without session drops.

Benefits of using Fortinet SD-WAN

  • Every application travels its optimal path
  • Seamless failover in under 300 milliseconds
  • Lower WAN costs, higher application performance

FortiSASE: zero trust from the cloud

FortiSASE is Fortinet’s cloud-native SASE platform that converges network and security functions across a global PoP network. Secure Web Gateway filters web traffic by category, reputation, and malware signatures. CASB governs access to SaaS applications and prevents data loss through granular DLP policies. ZTNA ensures that users can only reach explicitly authorised applications, based on identity, device health, and contextual signals, not on membership in a trusted network segment.

Benefits of using FortiSASE

  • Identity-based access control, regardless of location
  • Unified security policy across every environment
  • Direct cloud access, secured at source

Connectivity products: the performance foundation

Fibre connections deliver symmetrical bandwidths from 100 Mbit/s up to 10 Gbit/s with round-trip times below 5 ms, the ideal backbone for real-time applications and cloud connectivity. DSL broadband complements the portfolio as a cost-optimised secondary path with bandwidth up to 250 Mbit/s. LTE and 5G serve as a fail-safe backup link that activates automatically on primary failure. SD-WAN aggregates all connections into a single logical WAN, delivering greater total bandwidth and higher resilience than any individual link alone.

Benefits of using connectivity products

  • Resilient connectivity across fibre, DSL and LTE
  • Aggregated bandwidth beyond any single link
  • Automatic failover keeps connectivity always available
Technical Advantages

SD-WAN and SASE: Six reasons to modernise your WAN

1. Savings

Measurably lower TCO through SD-WAN-based MPLS replacement

2. Speed

New branches provisioned in hours through zero-touch deployment

3. Compliance

NIS2 and KRITIS compliance through integrated security controls

4. Performance

Microsoft 365 and cloud apps delivered through direct internet breakout

5. Control

Full network and security visibility from a single management platform

6. Simplicity

Router, firewall, and WAN optimiser consolidated in one appliance

Your partner of choice

Why evoila for SD-WAN and SASE

The technology is proven, so the partner who deploys it makes the difference. Four reasons for evoila:

Fortinet Advanced Partner

NSE 4-7 certified engineers, dedicated SD-WAN/SASE project team, 80+ successfully migrated WAN projects.

Connectivity from One Source

We procure and coordinate fibre, DSL, and LTE backup directly: one contract, one SLA, one point of contact.

Zero-Downtime Migration Framework

Proven runbook for parallel operation of legacy and new system throughout the migration — no outages, no surprises.

Managed SD-WAN and SASE

24/7 monitoring, proactive link management and security operations as optional managed service, so your team stays focused.

Our Network Partnerships

With our partners we can deliver the WAN performance you need

Technology Partner
Fortinet: The network is no longer just connectivity — it is your first line of defence. Fortinet SD-WAN and SASE unify intelligent link management, zero-trust security, and centralised visibility into one platform built for the way distributed enterprises actually operate today.

Strategic Partners
Telekom, Vodafone, o2: The physical WAN connections that Fortinet SD-WAN manages (fibre, DSL and LTE) are procured and coordinated directly through evoila’s partnerships with Germany’s leading network providers. One engagement covers both the platform and the lines it runs on.

Wanna expand your Network? Let’s connect!

The right WAN architecture starts with the right conversation. Tell us about your current setup and what needs to change, we will tell you directly what is possible and how fast we can get there.

FAQ

Commonly Asked Questions about SD-WAN and SASE