Pngr
Graphs & History

Hop latency visualization

Read the route-aligned latency ranges and response-loss bars.

Reading the plot

The compact plot beside the hop table aligns one row with each displayed hop. Its horizontal axis is latency in milliseconds.

MarkMeaning
Horizontal range with end capsMinimum to maximum measured latency
Small circular markerAverage latency, falling back to the current value when necessary
Connecting lineVisual link between adjacent available hop markers
Red bar extending from the rightDiagnostic response loss, using its own 0–100% width scale
Highlighted rowSelected hop

The connecting line helps compare rows; it is not a measurement of latency between routers. Hop measurements are round-trip diagnostic responses from your computer.

Click a hop row or its plot row to select that hop's history graph. Use the graph visibility control in the hop table to add or remove a graph without stopping monitoring.

Scale and thresholds

The latency scale expands automatically unless a fixed maximum is configured in Display settings. Default warning and critical thresholds are 100 ms and 200 ms. Their background bands provide a visual reference; they are separate from alert rules.

Missing responses have no measured latency. A long red bar at one intermediate hop, with healthy later hops and destination replies, can indicate limited diagnostic replies rather than a forwarding problem.

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