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
The edge device ships to the site, connects to power and internet, and provisions itself from the controller. Nobody needs to visit, and there is nothing to pre-stage or template.
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.