14 Hardware GuideSys AIndicates that the Firebox is running from its primary user-defined configuration.Sys BIndicates that the Firebox is running from the read-only factorydefault system area.PowerIndicates that the Firebox is currently powered up.Security Triangle DisplayIndicates traffic between Firebox interfaces. Green arrows brieflylight to indicate allowed traffic between two interfaces in thedirection of the arrows. A red light at a triangle corner indicatesthat the Firebox is denying packets at that interface.TrafficA stack of lights that functions as a meter to indicate levels oftraffic volume through the Firebox. Low volume indicators aregreen, while high volume indicators are yellow. The displayupdates three times per second. The scale is exponential: the firstlight represents 64 packets/second, the second light represents128 packets/second, increasing to the eighth light whichrepresents 8,192 packets/second.LoadA stack of lights that functions as a meter to indicate the systemload average. The system load average is the average number ofprocesses running (not including those in wait states) during thelast minute. Low average indicators are green, while high averageindicators are yellow. The display updates three times per second.The scale is exponential with each successive light representing adoubling of the load average. The first light represents a loadaverage of 0.15. The most significant load factor on a Firebox is thenumber of proxies running.Firebox III front view (Model 500 and 700)Firebox III Model 500 and 700 indicators are on a central back-lit indicatorpanel. The following photograph shows the entire front view.