Network Topology & Redundancy Simulator

End-to-End Connectivity — SURVIVES

At least one path is up through every tier. System availability 99.900%.

Reliability math: Series tiers multiply (A = A₁·A₂·…); a redundant pair is parallel (A = 1−(1−A₁)(1−A₂)). Adding a Path B turns a single point of failure into a parallel block, sharply raising availability. Connectivity is lost only when every path through one tier is down.

Three-Tier Topology · Green = up, Red = failed, Dashed = redundant path