1x40 mode, the first LED will indicate the port state and trac and the second LED will be oColor and
blink pattern indicate speeds, as referenced by the following table:
Table 29: Port LEDs in SPD Mode
Color/State Speed
Slow blinking green 10Mbps
Fast blinking green 100Mbps
Steady green 1000Mbps
Slow blinking amber 2.5Gbps
Fast blinking amber 5Gbps
Slow blinking green 10Gbps
Fast blinking green 25Gbps
Fast blinking green 40Gbps
Fast blinking green 50Gbps
Port LEDs in STK Mode
After two presses of the Mode button, the port LEDs will 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 LED, as
referenced by the following table:
Table 30: Port LEDs in STK Mode
Color/State Speed
Steady green Slot corresponding to the port number of the LED is present
Blinking green This slot has slot number corresponding to the port number of the blinking LED
Table 31: Management Port LEDs
Right side LED State
Link Solid Green Link up
O No link up or port disable
Left side LED State
Act Blinking Green Packet transmitting or receiving
O No packet transmitting or receiving
Versatile Interface Modules (VIM) Port LEDs
There are two supported modes for ExtremeSwitching 5520-VIM port LEDs:
• SYS - default, use normal port LED behavior for link, trac, and PoE
• SPD – use the port LEDs to indicate operational speed
Port LEDs in STK Mode
Monitoring the Device
126 ExtremeSwitching 5520 Series Hardware Installation Guide
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