Secure SD-WAN, One Resilient Network
Secure SD-WAN only matters once you run two or more sites that need to behave as one network. Below that, a managed firewall and one good line is enough. Above it, a single circuit per site is a point of failure. We pair two different circuit types per branch, part of our wider infrastructure services, so one carrier's fault can't take a site down.
A Backup Line Isn't The Same As Real Redundancy
Most “redundant” branch connections we take over aren’t redundant at all. They’re one primary circuit with a second SIM or a spare line sitting unused until someone notices the first one is down. That isn’t failover, it’s a spare part nobody has tested.
the Same Carrier means the Same Risk
When a backup SIM on the same network as your primary provider, or a second fibre pair routed through the same exchangehas a fault, both circuits go down together.
Nobody Watching Isn't Failover
A router that has to be manually reset, or a SIM that has to be swapped in by hand, only helps once someone on site notices the branch is offline and knows what to do about it.
Bandwidth Back Isn't Voice Back
A backup line that restores general internet access doesn't automatically restore voice and video quality over the link unless that traffic is prioritised on the secondary path too.
On their own, these are irritations. Together they mean a branch that goes dark the moment its one real path fails, a failover nobody's testing until the day it matters, and calls dropping even after the internet comes back. As your Secure SD-WAN partner in Johannesburg, we design the failover, monitor it, and make sure voice and video actually come back with it, not just general browsing.
Every Step In The Build, Before The First Site Goes Live
A secure SD-WAN rollout is not a box that arrives and gets plugged in. Before any branch goes live, we work through the same sequence, site by site.
Audit Existing WAN
We list every site and every circuit already running there: MPLS, fibre, LTE, fixed wireless, what each one costs and what depends on it, so nothing gets replaced blind.
Map Traffic Per Site
Voice and video, bulk traffic like backups, and cloud-bound traffic to Microsoft 365 or Azure get separated out, because each type needs a different routing rule to perform well.
Transport Mix
Every site gets a primary circuit paired with a secondary of a different type, fibre with LTE rather than two lines from one carrier, so one fault cannot take the branch down.
Build The Security Layer
Every site to site path runs encrypted, traffic is segmented between corporate, guest and IoT, and the SD-WAN edge either carries firewall functions or hands off to a managed one.
Pre-Stage And Roll Out
Each appliance is configured centrally before it ships, so a non-technical person on site plugs it into power and the circuits, and it pulls its policy down automatically.
Testing Before Cutover
The new network runs alongside the old one first. We pull the primary circuit deliberately to confirm the reroute actually works before the site goes live on it.
Failover That's Engineered In And Proven On Site
A resilient design only means something once it’s been tested against a real fault. Every SD-WAN rollout we hand over has its failover pulled and timed before the site depends on it.
Traffic Prioritisation
Voice and video are marked and given strict priority ahead of bulk traffic like backups and general browsing, enforced live per packet across every link, not by a static route table someone edits by hand later.
Link Health Monitoring
Both circuits are watched continuously through proactive monitoring, so a flapping link or a struggling carrier gets picked up and acted on before it causes a dropped call or a failed session.
Tested Failover
Before a site goes live, we pull the primary circuit deliberately and time the reroute to the secondary path, so the failover window is proven on that site, not just quoted from a spec sheet.
Documented Recovery
What happens to an active call or session when the primary link drops, and how long recovery actually takes, is written down and handed over, so you know exactly what to expect rather than what to hope for.
What Actually Sets The Price Of Secure SD-WAN
There’s no flat per-site rate, because SD-WAN pricing is engineered, not templated. It comes down to four things: site count, transport mix, security layer, and cloud breakout needs.
Every engagement starts with a WAN audit of your existing circuits and traffic, then a fixed monthly quote, not an hourly estimate.
01 How Many Sites You're Linking
02 Your Transport Mix Per Site
03 Whether Security Sits On The Edge
04 How Much Traffic Breaks Out To The Cloud
Where SD-WAN Actually Fits
This fits businesses running two or more sites, a warehouse and head office, or branches, that need to behave as one network. It suits real-time voice and video, and cloud-bound apps needing branch traffic breaking out locally. A single site with no branch growth planned is better served by enterprise wireless.
How it works
frequently asked questions
What actually happens to our sites during the cutover?
We run the new SD-WAN links alongside your existing WAN for a burn in period before anything switches over, so no branch loses connectivity mid-migration. Cutover only happens once failover has been tested and proven on that site.
Is broadband or LTE reliable enough to carry our voice and video calls?
On its own, no single broadband or LTE line is. Paired as a second transport type behind a primary circuit, with application aware routing prioritising real time traffic, it carries calls and video reliably, the same real time traffic that our business VoIP and connectivity systems depend on.
If a branch's ISP goes down, who is responsible and how fast do we fail over?
The carrier owns the outage on their network, we own getting your branch back online. Failover to the secondary link is automatic, engineered for a sub-second to low-second reroute, not a support call and a wait.
Do we need to replace our existing hardware?
Not always, we assess what you have first and only recommend replacement where it’s genuinely needed.
Two Carrier Types Per Site Is What Transport Independence Means
Talk to our SD-WAN team.