Juniper EX9253 Hardware Manual page 46

• Lane LEDs
• Line card LED—An LED labeled OK/FAIL, which indicates the status of the line card.
• ONLINE LED—An LED labeled ONLINE, which indicates if the line card is online.
• OFFLINE button—A button to take the line card offline before removing it
The ports are divided into two port groups. The six QSFP+ ports labeled 0 through 5 form one port
group, PIC 0. The 12 QSFP28 ports labeled 0 through 11 form the other port group, PIC 1. The ports in
each group share 1.2 terabits of bandwidth. Thus, you can transmit up to 1.2 terabits of traffic through a
port group, without packet drop.
Port LEDs and Lane LEDs on EX9253-6Q12C Line Card
You can select a port operating in a breakout mode for an individual lane display, either periodically or
when the request chassis port-led command is executed. Similar to the port status LEDs, the lane LED
supports four states defined by the color or the LED status—Off, Green, Amber, and Red.
The following are the port LED display modes:
• Normal—The port status LED represents port state or a breakout port state. By default, the port
status display mode is Normal.
• Lane display—An array of lane status LEDs displays the status of each individual lane for the selected
port. The lane display is ON when the software cycles through ports for lane status display. One port
is selected at a time, and the display mode for that particular port switches to lane display mode. The
other ports remain in normal display mode.
• Port location—The port location mode is
command for a port or a group of ports. The request chassis port-led command temporarily overrides
periodic software port selection for the lane display; all ports on an interface card that are not
selected for port location switch to Normal mode, and selected ports switch to port location mode. If
only one port is selected for port location, then the corresponding lane LEDs are applicable.
However, if the selected port is in breakout mode, then all lane LEDs are applicable. If not in breakout
mode, only lane 0 LED displays the port status. If more than one port is selected for port location,
then the lane LEDs are disabled.
The following factors trigger a change in the port LED color:
• Change in the port state. For example, loss of signal (LOS) to no LOS, remote fault, or local fault.
• Insertion or removal or a transceiver
• Change in configuration
• Activation or deactivation of port location feature
ON when a remote operator initiates a port location
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