Cisco Nexus 5000 Series Hardware Installation Guide
LEDs
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Table of Contents

LEDs

Chassis and Module LEDs for the Cisco Nexus 5000 Series Switches

Chassis and Module LED Descriptions

Conditions Indicated by the Power Supply LEDs

Port LEDs

Ethernet Port LEDs

Ethernet and Fibre Channel LEDs

LEDs

This appendix describes the conditions indicated by the chassis and module LEDs on the Cisco Nexus 5000 Series switches.

This appendix includes the following sections:

Chassis and Module LEDs for the Cisco Nexus 5000 Series Switches

This section includes the following topics:

Chassis and Module LED Descriptions

Table C-1 describes the chassis LEDs for the Cisco Nexus 5000 Series switches.

 

Table C-1 LEDs for the Cisco Nexus 5500 Platform Switches

Component
LED
Status
Description

Chassis
(front and back)

ID
(Cisco Nexus 5500 Platform only)

On
(blue)

Identifies the chassis receiving the beacon signal.

Status

Solid on
(green)

All diagnostics pass. The module is operational.

Off

The module is not receiving power.

On
(amber)

The module is booting or running diagnostics.

An overtemperature condition has occurred. The temperature threshold has been exceeded by a small value during environmental monitoring.

Blinking
(amber)

An overtemperature condition has occurred. The temperature threshold has been exceeded by a large value during environmental monitoring.

If the module fails during initial reset, the LED continues to blink and the module does not come online.

The module has a runtime failure and is brought offline.

Fan tray
(front of chassis)

Status

Solid on
(green)

All diagnostics pass. The module is operational.

Off

The module is not receiving power.

Solid on
(amber)

The module is booting or running diagnostics.

Blinking
(amber)

If the module fails during initial reset, the LED continues to blink and the module does not come online.

The module has runtime failure and is brought offline.

Power supply
(front of chassis)

OK (green)

Solid on

Power supply is on and okay.

Blinking

3.3 voltage standby (VSB) is on but the power supply unit is not powering the other modules.

Off

No AC power to the power supply.

FAULT (amber)

Solid on

Power supply failures, overvoltage, overcurrent, overtemperature.

Blinking

AC is present, 3.3 VSB on, and the power supply is off.

Off

Operating normally.

Expansion module

Status

On
(green)

All diagnostics pass. The module is operational.

Off

The module is not receiving power.

Solid on
(amber)

The module is booting or running diagnostics.

An overtemperature condition has occurred. The temperature threshold has been exceeded by a small value during environmental monitoring.

Blinking
(amber)

An overtemperature condition has occurred. The temperature threshold has been exceeded by a large value during environmental monitoring.

If the module fails during initial reset, the LED continues to blink and the module does not come online.

The module has runtime failure and is brought offline.

Port LED

Indicates LED status

Off

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

Solid on
(green)

The port is active. The link is connected and operational.

Solid on
(amber)

The module or port is disabled through the CLI command or the module is initializing.

Blinking
(amber)

The port is faulty and has been disabled.

Table C-2 table describes the status of the two power supply LEDs

Conditions Indicated by the Power Supply LEDs

You can determine the power supply conditions by combining the LED states of the OK and FAIL LEDs (see Table C-2 ).

Table C-2 Power Supply LED Descriptions

Power Supply Condition
OK LED
(Green)
FAIL LED
(Amber)

No AC or DC power to all power supplies.

Off

Off

Power supply failure, including over voltage, over current, over temperature, and fan failure.

Off

On

Power supply warning events where the power supply continues to operate. These events include high temperature, high power, and slow fan.

Off

Blinking

AC present, 3.3 voltage standby (VSB) on, and the power supply unit is off.

For a DC power supply, it indicates that DC power is present.

Blinking

Off

Power supply on and OK.

On

Off

Port LEDs

This section includes the following topics:

Ethernet Port LEDs

Table C-3 lists the LED descriptions for the RJ-45 Ethernet port LEDs.

Table C-3 Ethernet Port LED Descriptions

LED
Status
Description

Left

Off

No link

Solid green

Physical link

Right

Off

No activity

Blinking green

Activity

Ethernet and Fibre Channel LEDs

There are 20 to 26 port activity LEDs on the switch depending on whether the GEM is a Fibre Channel or 10-Gigabit Ethernet module. Table C-4 describes the behavior of the port LEDs.

Table C-4 Port-Level LEDs

Link State
LED State
Notes

Link Down

OFF

POST failed on port

AMBER blinking yellow

Administrative disabled

AMBER_ON

Depending on the product you look at, the

LED could be off, or solid amber

Link Up,

port in STP forwarding state

GREEN_ON

Blinks based on network activity