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A P P E N D I X A Runtime LED Diagnostics
151
Runtime LED Diagnostics
Runtime Activity
At runtime, the LEDs provide information about system activity as
described below.
Status LED
• Blinks on and off quickly when operating normally.
• Continuous on or off indicates troubled (hung) system.
Activity LEDs
The following table describes the runtime behavior of the Status and
Activity LEDs (Act 1, Act 2)
Runtime Errors
At runtime, the 7190’s health-monitoring processes indicate critical
error conditions by turning off the Status LED and flashing error
patterns on the two Activity LEDs.
Status Act 1 Act 2 Condition
1 sec on,
1 sec off
Off Off DNS Server is Running
1 sec on,
1 sec off
Solid Off 1000 – 3500 DNS Queries/sec
1 sec on,
1 sec off
Solid Solid > 3500 DNS Queries/sec
Solid Solid Solid DNS Server is Down
Off Off Flash NIC Failure
Flash Flash Flash Health Montoring Failure (each LED
lights in sequence)
Runtime Errors