Table 22: Port LEDs in SPD Mode (continued)
Color/State Speed (RJ45, SFP) Speed (QSFP)
Fast blinking amber 5Gbps unused
Slow blinking green 10Gbps 10Gbps
Port LEDs in STK Mode
After two presses of the Mode button, the port LEDs enter the STK Display Mode, indicated by the STK
LED. STK mode is used to indicate slot presence and slot number via the first eight port LEDs, as
referenced by the following table:
Table 23: Port LEDs in STK Mode
Port 1-8 Color/State Speed
Steady green Slot corresponding to the port number of the LED is present
Blinking green 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 24: Management Port LEDs
Right side LED State
Link Solid Green Link up
O No link up or port disabled
Left side LED State
Act Blinking Green Packet transmitting or receiving
O No packet transmitting or receiving
Locator LED
The blue LED labelled LOC on the front panel is the locator LED, which is controlled by using the CLI.
Monitor the Device
Port LEDs in STK Mode
ExtremeSwitching 5720 Series Hardware Installation Guide 89
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