F5 8400, User Manual

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Using Additional IP Application Switch Functionality
Platform Guide: 8400 and 8800 4 - 1
Understanding LED behavior
This section describes the LED behavior of the BIG-IP
®
system, version 9.0
and later, on the BIG-IP 8400 platform.
Indicator LED functions
There are four types of indicator LEDs on the faceplate of each unit. Each
indicator LED serves a specific function. The indicator LED functions are
defined in Table 4.1.
Indicator LED actions
The behavior, or action, of each of LED indicates the status of the system.
The indicator LED actions are defined in Table 4.2.
Function Description
Power Reports the power status: on (green), present (yellow),
or off (none). Note that units with the capacity for
additional power supplies have a Power LED for each
power supply bay.
Status Reports the state of the system: Active/standalone
(Green) or Standby (Yellow).
Activity Reports storage device and network device activity.
Alarm Reports a non-specific alert level. Use SNMP traps,
system logs, or the LCD display for more information.
Table 4.1 Indicator LED functions
Action Description
Off (none) The LED is not lit and does not display any color.
Solid The LED is lit and does not blink.
Blinking The LED turns on and off at a regular frequency.
Intermittent The LED turns on and off with an irregular frequency
and may sometimes appear solid.
Table 4.2 Indicator LED actions