Troubleshooting Line Card Installation on EX8200 Switches

Problem

The ON LED on a line card does not blink in green or is not lit steadily after the line card is installed in an EX8200 switch.

Cause

• The switch does not have sufficient power to power the line card while maintaining its N+1 or N+N power configuration.
• The line card is not seated correctly in the slot in the switch chassis.

Solution

1. If the ON LED does not blink in green:

   • Ensure the switch has sufficient power to power the line card while maintaining its N+1 or N+N power configuration:
     • To determine the power requirements of the line card, see Power Requirements for EX8208 Switch Components or Power Requirements for EX8216 Switch Components.
     • To determine whether the switch has enough power available for the line card, use the show chassis power-budget-statistics command if your switch is running Junos OS Release 10.2 or later. If your switch is running Junos OS Release 10.1 or earlier, see Calculating Power Requirements for an EX8208 Switch or Calculating Power Requirements for an EX8216 Switch to calculate the available power.
   • If the ON LED does not blink still, remove the line card (see Removing a Line Card from an EX8200 Switch) and reinstall the line card (see Installing a Line Card in an EX8200 Switch).
2. If the ON LED blinks in green, but is not lit steadily, tighten the captive screws on the faceplate of the line card.