Appendix G. Constant Quality Monitoring - technical details

Table of Contents

The FireBrick provides constant quality monitoring. The main purpose of this is to provide a graphical representation of the performance of an interface or traffic shaper .

100 second interval statistics available graphically as svg or png and in text as csv covering at least the last 25 hours (one day)
Loss latency stats where available including minimum, average, and maximum latency for the 100 second sample, and percentage packet loss.
Throughput stats where available (e.g. interfaces, shapers ) including average tx and rx rate for 100 second sample

Graphs can be loss/latency or throughput of both. A ping only system would only have loss/latency. An interface or shaper normally has only throughput data.

G.1. Tx/Rx direction

A graph shows information about two directions, tx and rx. In many cases this is simple - a graph attached to an interface has rx for traffic coming in to the FireBrick, and tx is for traffic leaving.


F.6. Advanced commands		G.2. Access to graphs and csvs