Culmen Failover Engine — under four second detection, multi-WAN uplinks, policy reroute

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Culmen Failover Engine

£440
Delivered and configured by the engineer who built it
Proven on a live network serving 200+ subscribers
Questions before you buy? Get in touch — no sales pressure

Automatic multi-carrier failover for MikroTik routers. Keeps subscribers online when an upstream provider fails.

What it does

  • Independent health monitoring per uplink, with hysteresis — no flapping on a single dropped packet
  • Sub-4-second failover between transit providers, invisible to most subscribers
  • Scoped routing changes with correct connection tracking, so established sessions actually move rather than sticking to a dead path
  • Scheduled bandwidth windows — apply different rate profiles by time of day
  • Alarm logging for events that need a human rather than an automatic action

Why this is hard to get right

Naive failover scripts fail in ways that look fine on the router and terrible to the customer: probes that never traverse the path they claim to test, routing changes that leave old connections on the dead link, watchdogs that fire heavyweight scripts on a single missed ping. This engine was built by working through those failures on a production network.

Perpetual licence. Configured to your specific uplinks and topology.

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