A fiber provider starts unwinding three inherited networks and a manual failover
A regional fiber-optic internet service provider.
The problem
Decades of growth, mergers and divestitures had left a regional fiber-optic internet service provider running three separate corporate networks stitched together with four routing methods. Where the protocols met, engineers had fallen back on static routes, and one critical circuit still had to be failed over by hand.
Why it mattered
Manual failover turns a circuit fault into an extended outage, and every extra hop, static route and redundant device was another thing to break, patch and explain to new staff.
What we did
Vizius wrote down the design philosophy first (fewer static routes, dynamic routing for failover, fewer hops) so every change could be judged against it. When the team paused to reassess which routing protocol should win at the core, Vizius closed the fixed-price project by agreement and moved the remaining work into a retainer with documented procedures and dated deliverables.
What changed
The fixed-price project closed in May 2026 with the redesign near completion. Under the retainer, dynamic routing between the two core routers was established and tested by July 2026, with procedures drafted to bring both data-center firewalls into one routing domain.
- Telecom and isp
- Midsize company