IREN Childress · Horizon-1 · East–West Fabric
Live per-SU port health from the 5-minute fabric sweep. Down = not passing traffic · dirty = link has light / bounces, a cleaning candidate · backbone dark = spine↔core link with no usable light — needs physical remediation at the xframe. Every down link is validated against the v7.1 map: if the far end is admin-down the near side is dark because nobody is transmitting, so it is excluded from dark — the fix is a port enable, not a truck roll. Click any SU for a port-level map.