Peplink SpeedFusion
SpeedFusion, explained
SpeedFusion is Peplink's technology for combining several WAN links — Starlink, VSAT, cellular, fibre — into one encrypted tunnel that stays up when any single link drops. Here's how it works, the three ways to run it, and where it fits in what Negu builds.
What it does
Four things SpeedFusion does that a plain router can't
A normal router picks one link at a time. SpeedFusion wraps all of them in a single tunnel between your Peplink router and a hub, and then decides — per packet — how to use them.
Bandwidth bonding
Traffic is split at the packet level across every link in the tunnel and reassembled at the far end — so a 100 Mbps Starlink and two 50 Mbps cellular links behave like one ~200 Mbps connection, not three separate ones.
Hot failover
Because every session already lives inside the tunnel rather than on any one link, a link dropping out doesn't drop the session. Calls, streams and remote sessions carry on over whatever is left.
WAN smoothing
For latency-sensitive traffic — voice, video, remote desktops — packets can be duplicated across links so the fastest copy wins. It trades some bandwidth for a connection that never stutters.
Encrypted end to end
Everything inside the tunnel is encrypted between the router and the hub. Which links it crosses — satellite, cellular, someone else's Wi-Fi — stops mattering to the security of the traffic.
It takes two ends
A SpeedFusion tunnel needs a router and a hub
The router on site does the splitting; the hub on the far side does the reassembling. Which hub you use is the biggest decision in a SpeedFusion design.
On site: a Peplink router
A Peplink SDX, EPX or Balance with every WAN — Starlink, VSAT, cellular, fibre — plugged in.
Far end: a hub
A FusionHub you host, Peplink's shared SpeedFusion Connect, or a managed FusionHub from Negu — dedicated to you, on our private network.
Bonding vs. failover vs. load balancing
Three words that get used interchangeably — and aren't
Plenty of routers advertise “multi-WAN.” Most of them mean load balancing or failover. Only bonding gives one session more than one link.
| Behaviour | Load balancing | Failover | SpeedFusion bonding |
|---|---|---|---|
| What one session gets | One link's bandwidth — sessions are spread across links, but each stays on one | One link's bandwidth — the others sit idle until the primary fails | The combined bandwidth of every link, for a single download or stream |
| When a link drops | Sessions on that link are cut and have to reconnect | Everything reconnects on the backup — calls and remote sessions drop | Nothing drops — the session was never tied to that link |
| Latency-sensitive traffic | At the mercy of whichever link it landed on | Same — plus a gap during every switch | WAN smoothing duplicates packets so the fastest copy wins |
| What it needs | Just the router | Just the router | A router and a hub at the far end |
Three Ways to Run SpeedFusion
Self-hosting and SpeedFusion Connect both work. Here's how Negu compares.
Self-hosting and Peplink's own SpeedFusion Connect are both legitimate options, depending on what you need. A managed FusionHub service from Negu simply removes the server layer and the speed caps.
| Feature | Self-Hosted | SpeedFusion Connect | Negu Managed FusionHub Service |
|---|---|---|---|
| Setup time | You provision, install, and configure the server or VM yourself | Instant — enable it as a subscription on your existing Peplink device | We provision and configure your dedicated instance for you |
| Maintenance burden | Ongoing patching, updates, and troubleshooting fall to your team | None — Peplink manages the service | We handle patching, updates, and health monitoring |
| Uptime & performance | Dependent on your own server's infrastructure, redundancy, and available bandwidth | Shared, multi-tenant infrastructure. Metered (quota'd) plans are capped at 200 Mbps; even the top-tier unlimited plan is capped around 400 Mbps | Redundant infrastructure with proactive monitoring, on bandwidth that's never shared with other customers |
| Cost predictability | Variable — hardware, infrastructure, and staff time all add up | Metered data buckets — costs scale with usage unless you buy the speed-capped unlimited tier | Fixed subscription pricing scoped to your deployment |
| Technical expertise required | Requires in-house server administration knowledge | None — simple subscription activation | None — we manage the server layer end to end |
| Scalability | Scaling means provisioning and configuring more infrastructure yourself | Speed-capped at 200–400 Mbps depending on plan; data buckets need topping up as you grow | Scale bandwidth and sites without new hardware procurement |
Where it fits
SpeedFusion is the thread through everything Negu builds
FAQ
SpeedFusion questions, answered
Run it without running it
SpeedFusion bonding on a hub that's yours alone.
Negu's managed FusionHub service gives you dedicated, unshared SpeedFusion bonding with unlimited data — we run the hub, you run the network.