SD-WAN
Software-defined WAN overlay with application-aware path selection across Internet, Broadband, MPLS and LTE. Delivers sub-second failover, per-packet load balancing, WAN optimisation and zero-touch provisioning so a new site joins the fabric without an engineer on site.
Overview
Your links are fine individually and terrible together. SD-WAN replaces manual per-circuit configuration with application-aware routing across all your WAN links — Internet, Broadband, MPLS and LTE — steering each flow to the optimal path based on real-time latency, loss, and jitter measurements. If a link degrades, traffic shifts before users notice. If a new site comes online, it provisions automatically. The WAN becomes a programmable fabric rather than a collection of rigid circuits managed through separate carrier portals.
Clevertek scopes every engagement to your environment — capacity, sites, compliance and support model — so you get a tailored plan rather than a fixed SKU. Pricing is quote-only, and our solutions architects will work through your requirements before any proposal.
Our approach
We design, deploy, and manage SD-WAN fabrics for enterprises that need to consolidate multiple WAN transports into one intelligent overlay. Our deployment starts with a network audit to map existing circuits, applications, and traffic patterns — then designs the SD-WAN architecture around your specific SLA requirements per application type. We handle edge device selection, zero-touch provisioning, underlay configuration, application steering policy definition, and ongoing optimisation. Your WAN becomes application-aware and resilient by design, not by manual intervention.
Why work with us
Application-aware path selection
Traffic steered across the best available link in real time — voice uses the lowest-latency path, bulk transfers use the highest-capacity path, failover happens within the application-session timeout.
Zero-touch provisioning for new sites
Edge device ships to the site, connects to power and internet, and provisions itself from the controller — no on-site engineer, no pre-staging, no configuration templates.
Underlay-agnostic operation
Works over Internet, Broadband, MPLS or LTE — any combination, any carrier, any technology. The overlay abstracts the underlay from the applications.
Integrated security (SASE-ready)
Built-in stateful firewall, IPS, URL filtering, and TLS inspection at each edge — or integration with cloud-delivered SSE for full SASE architecture.
Application performance visibility
Per-application, per-path, per-site performance dashboards — latency, throughput, packet loss, and jitter for every business application on every WAN link.
Carrier independence
Switching carriers does not require reconfiguring the WAN. The SD-WAN overlay accommodates changing underlay circuits without service disruption.
Key benefits
What this solution delivers for your business.
Improved application performance
Each application gets the optimal path for its needs — voice never shares a degraded link with bulk backup traffic. Performance improves without upgrading any circuit.
Reduced WAN costs
Consolidate expensive MPLS circuits with lower-cost broadband or LTE links. SD-WAN can route business-critical traffic over MPLS and use lower-cost links for less sensitive traffic.
Faster new-site deployment
Zero-touch provisioning reduces new-site connectivity from weeks to days. The edge device connects and configures itself — no on-site IT required.
No single-carrier dependency
SD-WAN bonds multiple carriers into one fabric. A failure on any one carrier degrades capacity but does not disconnect any site.
Centralised policy management
Application steering rules, security policies, and QoS configuration managed from a single controller — applied to every site simultaneously.
Measurable WAN SLA compliance
Per-application, per-path performance data provides SLA verification for circuit providers and internal service level commitments to business units.
What's included
Part of this managed service.
Application-aware routing
Real-time path quality measurements steer each application flow to the optimal WAN transport.
- Per-flow path selection
- Sub-second failover
- Application identification (DPI)
- Custom traffic policies
Zero-touch provisioning
Edge devices auto-configure from the cloud controller — ship, plug, connect, no on-site expertise needed.
- Auto-provisioning
- Cloud-managed controller
- Template-based configuration
- Bulk deployment
WAN optimisation
Built-in optimisation for bandwidth-constrained links — compression, deduplication, and latency mitigation.
- TCP acceleration
- Data compression
- Latency buffering
- FEC for lossy links
Integrated security
Stateful firewall, IPS, URL filtering, and TLS inspection at the SD-WAN edge — or integration with cloud SSE.
- Stateful firewall
- IPS/IDS
- URL filtering
- SASE integration
Performance monitoring
Per-application, per-path, per-site dashboards for latency, throughput, loss, and jitter.
- Application visibility
- Path quality scoring
- SLA compliance dashboard
- Historical trending
Where it helps
Real-world scenarios where this solution delivers measurable outcomes.
Multi-site WAN consolidation
Replace a mesh of point-to-point MPLS circuits with an SD-WAN fabric over mixed underlays — MPLS for critical traffic, LTE for less sensitive, fixed wireless as failover.
Branch office connectivity
Connect remote branches with broadband + LTE failover managed through an SD-WAN overlay — application-aware, carrier-independent, zero-touch provisioning.
Cloud-first enterprise
Direct branch-to-cloud access over SD-WAN without hairpinning traffic through headquarters — reducing latency and eliminating unnecessary tromboning.
Acquisition integration
Quickly onboard newly acquired companies onto the corporate WAN — send zero-touch SD-WAN appliances to their sites and adopt them into the fabric within days.
Questions buyers actually ask
Do I replace my existing routers?
SD-WAN appliances typically sit alongside or replace existing edge routers. The approach depends on your current hardware and whether it supports SD-WAN functionality.
Can SD-WAN work with MPLS?
Yes — and MPLS is an excellent underlay for SD-WAN. The SD-WAN overlay adds application-aware steering on top of the MPLS backbone while also adding broadband or LTE links for diversity.
How is security handled?
Built-in stateful firewall and IPS at each edge, plus optional integration with cloud-delivered SSE for full SASE architecture — including CASB, DLP, and Zero Trust Network Access.
How long does a typical SD-WAN deployment take?
For an existing multi-site network with documented circuit inventory, deployment takes 4-8 weeks from design to full production rollout, depending on the number of sites.
What happens when an underlay link fails?
SD-WAN detects the failure through real-time path quality monitoring and reroutes traffic to the best alternative link within the application-session timeout — typically under one second.
Ready to scope a solution?
Talk to a Clevertek solutions architect about your requirements — no obligation.