LEDs

Chassis LEDs

The chassis LEDs are located at the top of the front of the chassis. They indicate whether each type of module (supervisors, controllers, I/O modules, fabric modules, fan trays, and power supplies) are fully functional or have a fault condition. The following table describes what each of these LEDs can indicate.

Table 1 Chassis LED Descriptions
LED Color Status

BCN

Flashing blue

The operator has activated this LED to identify this chassis.

Off

This chassis is not being identified.

SUP

Green

Supervisor modules are all operational.

Amber

Check the Supervisor Module LED Descriptions for more information.

FAB

Green

Fabric modules are all operational.

Amber

Check the FAB LED description in the Fan Tray LED Descriptions for more information.

IOM

Green

I/O modules are all operational.

Amber

Check the I/​O Module LED Descriptions for more information.

PSU

Green

Power supplies are all operational.

Amber

Check the Power Supply LED Descriptions for more information.

FAN

Green

Fan trays are all operational.

Amber

Check the Fan Tray LED Descriptions for more information.

PWR MGMT

Green

Sufficient power is available for all of the installed modules.

Amber

Either of the following:

  • Insufficient power for at least one of the installed modules.

  • The configured power redundancy mode differs from the operational power redundancy.

System Controller LEDs

The system controller module LEDs are located on the left side of the module. The following table describes the possible states for each of these LEDs.

Table 2 System Controller LED Descriptions
LED Color Status

BCN

Flashing blue

The operator has activated this LED to identify this module in the chassis.

Off

This module is not being identified.

STS

Green

This module is operational.

Flashing amber

This module is booting up.

Flashing red

Temperature exceeds major alarm threshold.

Off

The module is not receiving power.

ACT

Green

The controller module is operational and in active mode.

Amber

The controller module is operational and in standby mode.

Supervisor Module LEDs

The Beacon (BCN), Status (STS), and Active (ACT) LEDs are located on the lower left front of the supervisor module. The management port link and active LEDs are located immediately above the port on the front of the module. The following table describes the possible states for each of these LEDs.

Table 3 Supervisor Module LED Descriptions

LED

Color

Status

BCN

Flashing blue

The operator has activated this LED to identify this module in the chassis.

Off

This module is not being identified.

STS

Green

This module is operational.

Flashing amber

This module is booting up.

Flashing red

Temperature exceeds major alarm threshold.

Off

The module is not receiving power.

ACT

Green

This module is operational and in active mode.

Amber

This module is operational and in standby mode.

(management port LINK)

Green

The management port is linked up.

Off

The management port is not linked up.

(management port ACT)

Green

The management port is linked up.

Off

The management port is not linked up.

Fan Tray LEDs

The fan tray LEDs are located on the lower right portion of the module. The following table describes the possible states indicated by this module.

Table 4 Fan Tray LED Descriptions

LED

Color

Status

BCN

Blue

The operator has activated this LED to identify this module in the chassis.

Off

This module is not being identified.

FAN

Green

The fan tray is operational.

Red

One or more fans in this fan tray has failed.

Off

No power is going to the fan tray.

FAB

Green

Both fabric modules behind this fan tray are operational.

Amber

At least one fabric module behind this fan tray is not operating.

Off

No power is going to the fabric module behind this fan tray.

Fabric Module LEDs

The fabric modules are located behind the fan trays.

Table 5 Fabric Module LED Descriptions

LED

Color

Status

(top LED)

Blue

The operator has activated this LED to identify this module in the chassis.

Off

This module is not being identified.

(bottom LED)

Green

The fabric module is operational.

Flashing red

The fabric module has a fault.

Flashing amber

The fabric module is booting up.

Off

No power is going to the fabric module.

I/O Module LEDs

The Beacon (BCN) and Status (STS) LEDs are located on the front left of the module, and the Link LED for each port is located between the two rows of ports (each of these LEDs is a triangle pointing to the port above or below the LED).

Table 6 I/O Module LED Descriptions
LED Color Status

BCN

Flashing blue

The operator has activated this LED to identify this module in the chassis.

Off

This LED is not being used.

STS

Green

All diagnostics passed. This module is operational (normal initialization sequence).

Flashing red

Indicates one of the following:

  • The module has detected a slot ID parity error and will not power on or boot up.

  • The module is not fully inserted, and it is not making a reliable connection with the supervisor.

  • The module has failed diagnostic tests and has powered down.

  • An overtemperature condition has occurred. A major temperature threshold has been exceeded during environmental monitoring

Flashing amber

Indicates one of the following:

  • The module is booting up or initializing.

  • The module is resetting and both ejector levers are out.

  • The module has been inserted during the initialization process.

  • The module could not power up because of insufficient power.

Off

The module is not receiving power.

Link (for each port)

Green

The port is active (the link is connected and active).

Orange

The port is disabled by the operator or is not initializing.

Flashing orange

The port is faulty and disabled.

Off

The port is not active or the link is not connected.

Power Supply LEDs

The power supply LEDs are located on the upper left front portion of the module. Combinations of states indicated by the OK and Fail LEDs indicate the status for the module as shown in the following table.

Table 7 Power Supply LED Descriptions

OK LED

Fail LED

Status

Green

Off

Power supply is on and outputting power to the switch.

Flashing green

Off

Power supply is connected to AC power source but not outputting power to the switch. The power supply might not be properly installed in the chassis.

Off

Off

Either all of the installed power supplies are not receiving power or an uninstalled power supply is not receiving power.

Off

Flashing amber

Power supply is operating but a warning condition has occurred—possibly one of the following conditions:

  • High temperature

  • High power

  • Slow power supply fan

  • Low voltage

  • Power supply is installed in the chassis but was disconnected from the power source

Off

Flashing amber (10 seconds) then amber

Power supply is installed without a connection to a power source.

Off

Amber

Power supply failure—possibly one of the following conditions:

  • Over voltage

  • Over current

  • Over temperature

  • Power supply fan failure