5420 Series Switch LEDs

ExtremeSwitching 5420 Series front panel port LEDs, as described in the following table:

Table 1. 5420 Series Port LEDs

LED

Color/State

Port State

SYStem status LED

(Legacy MGMT function)

Note: The system status LED is solid green to indicate normal operation when the switch is running Fabric Engine.

Green flash slowly

POST Passed,

normal operation, blinks on standalone switch, stack primary, and backup nodes in a stack;

off for standby nodes in a stack

Green blinking

POST in progress

Amber blinking

POST failed or overheat

PSU status LEDs P1/P2

Green

Power On

Off

Power off and no power attached

Amber Blinking

Power supply failures

Speed status (SPD), Stacking status (STK)SPD solid greenSpeed mode
STK solid green Stacking mode
All off Normal mode

Fan status for 5420F

Green

Normal operation

Amber Blinking

Fan failure

Fan module status for 5420M

Green

Normal operation

Amber Blinking

Fan module failure

Off

Fan module not present

Bluetooth Status LED (BT)

Green Blinking

Bluetooth pairing in progress

Green

Bluetooth connected

Off

Bluetooth not connected

Locator LED (LOC)

Blue Blinking

Locator function

The following figure shows the two alternate mode LEDs for 5420 Series switches: SPD and STK. The Mode button is used to cycle through three display modes for the port LEDs. In the default mode, SPD and STK are off. SPD and STK display modes expire after 30 seconds, at which time the port LEDs revert to the default SYS mode. Pressing and holding the the Mode button initiates Bluetooth pairing.

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5420 Series Mode and System Status LEDs
Front panel view of LEDs and ports
Note

Note

Front-panel PoE ports use Amber to indicate PoE states.

Port LEDs in Default (SYS) Mode

In the default SYS mode, SPD is OFF, and the port status displays behavior for link, traffic, and PoE as described in the following table:

Table 2. Port LEDs in SYS Mode (default)

Color/State

Meaning

Green

Link is OK; port is not powered

Amber

Link is OK; port is powered; no traffic

Green blinking

Link is OK and transmitting packets; port is not powered

Amber blinking

Link is OK and transmitting packets; port is powered

Amber slow blinking

No link, or disabled port; port is powered

Alternating amber and green

Port has a power fault

Off

Port is not powered, has no link, or is disabled

Port LEDs in SPD Mode

The port LEDs enter the SPD display mode when the Mode button is pressed one time, indicated by the SPD LED. SPD mode is used to help determine the operational speed of a port.

There are two LEDs per SFP-DD port on 5420 models. When an SFP-DD port is used for Ethernet and stacking is disabled, each SFP-DD port can be used as either a single SFP+ port or two SFP+ ports if an SFP-DD transceiver is used on 5420M models. When the SFP-DD port is used for as a single SFP+ port, the first LED represents link and traffic, while the second LED is not operational. When the SFP-dd port is used as two SFP+ ports, the first LED represents link and traffic for the first port, and the second LED represents link and traffic for the second port. 5420F models are limited to one 10Gbps port per SFP-DD port in Ethernet mode with stacking disabled. The second SFP+ port is not available and the second LED is not operational.

In stack mode, each SFP-DD port can be used as one 20Gbps SFP+ port, or one 10Gbps SFP+ port, depending on the stack speed and optic used. The first LED represents the link state and traffic of the stack port with solid or blinking green. The second SFP+ port is not available and the second LED is not operational.

Color and blink pattern indicate speeds, as referenced by the following table:

Table 3. Port LEDs in SPD Mode

Color/State

Speed

Green

10Mbps

Green blinking

100Mbps

Amber

1000Mbps

Amber slow blinking

2.5Gbps

Green slow blinking

10Gbps

Green fast blinking

25Gbps

Green fast blinking

40/50Gbps

Port LEDs in STK Mode

The port LEDs enter the STK display mode after the Mode button is pressed twice, indicated by the STK LED. STK mode is used to indicate slot presence and slot number via the first eight port LED, as referenced by the following table:

Table 4. Port LEDs in STK Mode

Color/State

Speed

Green

The slot corresponding to the port number of the LED is present.

Green blinking

This slot has a slot number corresponding to the port number of the blinking LED.

Management Port LEDs

The management port uses two LEDs to indicate port activity and link status, as referenced by the following table:

Table 5. Management Port LEDs
Right side LED State
Link Green Link up
Off No link up or port disabled
Left side LED State
Act Green blinking Packet transmitting or receiving
Off No packet transmitting or receiving