Switch User Manual

CHAPTER 15

Troubleshooting Switch Components

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Troubleshooting Line Card Installation on EX8200 Switches on page 237

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 One or both of these has caused these problems:

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

• 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” on page 111 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” on page 114

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” on page 218) and reinstall the line card (see “Installing a

Line Card in an EX8200 Switch” on page 160).

2. If the ON LED blinks in green, but is not lit steadily, tighten the captive screws on the

faceplate of the line card.

Related Topics • 8-port SFP+ Line Card in an EX8200 Switch on page 30