16 ZT8101 User’s Manual
Installation and Initial Setup
Status LEDs
The two LEDs at the bottom of the font panel are status LEDs. The top LED indicates the overall
status of the board and the bottom LED indicates the hot swap status of the board.
Health Status LED
Hot Swap LED
Port LEDs
The LED array on the front panel displays information about all the Ethernet links on the board. A
green/amber two-color LED is used for each of the 26 Ethernet port connections (24 10/100 + 2
Gigabit). A push-button switch just below the array toggles the LED display from Link /Activity
mode to Link / Speed mode. The default LED mode is Link /Activity. When you depress the switch
button, the LEDs are in Link/Speed mode.
Link / Activity LED Mode
Status Meaning
Off Not powered.
Green Powered and functioning normally.
Amber
Attention needed due to one of the following conditions:
• Over temperature
• Backend supplies exceeding voltage limits
• IPMB time outs
Status Meaning
Off Switch is active or in the process of shutting down; do not remove it.
Blue Safe to remove the switch.
Status Meaning
Off No Ethernet connection.
Solid Green Good connection, link present.
Blinking Green Port is transmitting or receiving packets (activity is on going).
Solid Amber
Port is not forwarding packets. The port has been disabled by management, an
address violation has occurred, or the port is being blocked by STP.
Note: After a port is reconfigured, the port LED can remain amber for as long as
30 seconds while STP checks the switch for loop paths. When the STP checking
is completed, the port then resumes displaying its current connection status.
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