SD-WAN & SASE
Modernise and secure your network, get visibility, control and performance for hybrid work, cloud and everything in between.
Empower your teams with secure experience
Hybrid work, internet‑first traffic and cloud adoption have outgrown legacy MPLS designs, creating bottlenecks, patchy visibility and inconsistent security. You need a network that’s agile, observable and secure, without adding complexity.
Secure SD-WAN provides a smarter way to connect users, applications and data across branch offices, cloud platforms and remote workforces. It makes your network simpler and safer, giving IT teams full visibility, central control and the flexibility to adapt as your business and connectivity options change. The result? One integrated network with consistent security and a seamless experience, built for today’s fast‑moving, cloud‑driven world.
Node4 Approach
It adapts to your organisation’s changes and continually prioritises traffic flow so that everybody has an amazing experience whether they’re on an HD video call with the team or simply accessing files across the network. Secure SD-WAN forms a core part of our vision for secure networking across your workforce.
We bring advanced security to every location, providing leading protection from internal and external threats. Laptop and mobile devices are protected with centralised endpoint protection. Wherever your teams are working, our Secure Access Service Edge approach will keep your organisation’s data safe, while accelerating their application experience.
Expert Engineers: Our UK-based team of accredited engineers are highly experienced in delivering complex network solutions.
Flexible Support Packages: We provide friendly, flexible options for 24x7x365 service, including access to reports and statistics.
SLA’s: Guaranteed network performance backed by rigorous Service Level Agreements.
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Features
Smart traffic routing
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Your apps don’t all need the same speed. SD‑WAN automatically prioritizes critical ones, like voice calls, video meetings, ERP systems, and SaaS apps, so they always perform at their best.
Built‑in security everywhere
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Firewalls, intrusion prevention, web filtering, and network segmentation are included as standard plus strong DDoS protection, so your data stays safe across every site.
Works with any connection
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Whether it’s MPLS, broadband, fiber, 5G, or even satellite, SD‑WAN uses the best available path for each application, automatically.
One dashboard for control
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Manage policies, monitor performance, and make changes from a single, easy‑to‑use console. You can even share access with your team for co‑management.
Optimised for the cloud
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Get direct, secure access to SaaS and cloud platforms without sending traffic back through a data center that is faster and more efficient.
Always‑on resilience
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If one link fails or slows down, SD‑WAN instantly switches to another. Active/active paths and automated failover keep your users connected and productive.
We suffer huge losses in a network-down scenario, making SD-WAN an attractive technology platform. Node 4 have been a real asst in helping us validate the SD-WAN business case.
Benefits
Higher uptime with multi‑path resilience
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More agility for Mergers and Acquisitions, new sites and hybrid work
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Speak to a specialist
See how Secure SD‑WAN could work for you
People Also Ask
What is the difference between a WAN and an SD‑WAN?
A WAN (Wide Area Network) is the traditional way to connect multiple sites, usually using fixed circuits like MPLS. It’s reliable but often rigid and expensive.
SD‑WAN (Software‑Defined WAN) does the same job, connecting sites, users and apps, but adds intelligence and flexibility. It uses software to steer traffic over the best available path (broadband, fiber, 5G, even satellite) and applies security policies consistently across the network.
How does SD‑WAN work?
SD‑WAN uses a central controller to manage all your network connections. It monitors performance in real time and automatically routes traffic based on application needs and link quality. Built‑in security features like firewalls and encryption to protect data everywhere. The result: better performance, lower costs and simpler management compared to legacy WANs.
What’s the migration strategy from MPLS to SD-WAN?
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What is an SD‑WAN used for?
SD‑WAN is used to:
- Connect multiple sites and remote users securely and efficiently
- Improve application performance for cloud and SaaS services
- Reduce costs by using internet links instead of expensive MPLS circuits
- Increase agility for opening new sites, supporting hybrid work or M&A
- Simplify operations with central visibility and policy control