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Troubleshooting the QFX5130-32CD

 

QFX5130-32CD Troubleshooting Resources Overview

To troubleshoot a QFX5130-32CD problem, you can use:

  • Junos OS CLI

    The CLI is the primary tool for controlling and troubleshooting hardware, Junos OS, routing protocols, and network connectivity. CLI commands display information from routing tables, information specific to routing protocols, and information about network connectivity derived from the ping and traceroute utilities. For information about using the CLI to troubleshoot Junos OS, see the appropriate Junos OS configuration guide.

  • Alarms and LEDs on the network ports, management panel, and components

    When the Routing Engine detects an alarm condition, it lights the red or yellow alarm LED on the management panel as appropriate. In addition, you can also use component LEDs and network port LEDs to troubleshoot the QFX5130-32CD. For more information, see QFX5130-32CD Management Panel.

  • JTAC

    If you need assistance during troubleshooting, you can contact the Juniper Networks Technical Assistance Center (JTAC) by using the Web or by telephone. If you encounter software problems, or problems with hardware components not discussed here, contact JTAC.

  • Knowledge Base articles–Knowledge Base.

QFX5130-32CD Alarm Messages Overview

When a QFX5130-32CD switch detects an alarm condition, it lights the red or yellow alarm LED on the management panel as appropriate. To view a more detailed description of the alarm cause, issue the show system alarms operational CLI command.

user@host> show system alarms

For thermal problems, the show chassis temperature-thresholds CLI command shows the cutoff temperatures for each level of alarm:

user@host> show chassis temperature-thresholds

It is also helpful to calculate the percentage of fan RPM, or duty cycle, use the following in root:

root@re0.~#i2cget -y -f 13 0x66 0x11

In this example, the system returned the hexadecimal value 0x07. Convert that value to decimal, which is 7 in this example. Then use this formula to get the duty cycle:

In this example, duty cycle = (7 +1)*6.25 = 50%

Chassis Alarm Messages

Chassis alarms indicate a failure on the device or one of its components. Chassis alarms are preset and cannot be modified.

Chassis alarms on QFX5130-32CD devices have two severity levels:

  • Major (red)—Indicates a critical situation on the device that has resulted from one of the conditions described in Table 1. A red alarm condition requires immediate action.

  • Minor (yellow)—Indicates a noncritical condition on the device that, if left unchecked, might cause an interruption in service or degradation in performance. A yellow alarm condition requires monitoring or maintenance.

Table 1 describes the chassis alarm messages on QFX5130-32CD.

Junos OS Evolved systems, such as QFX5130-32CD, are based on a new alarm infrastructure, not all power supplies and fan alarms are supported. Table 1 shows these alarms.

Table 1: Chassis Alarm Messages for QFX5130-32CD

Component

Alarm Type

CLI Message

Recommended Action

Fans

Red (major)

Fan Tray fan-tray-number Absent

Install fan modules in the slots where they are absent.

Fan Tray fan-tray-number Failure

Remove and check fan module for obstructions. Reinsert the fan module. If the problem persists, replace the fan module.

sensor-location Temp Sensor Too Hot

Check the environmental conditions and alarms on other devices. Ensure that environmental factors (such as hot air blowing around the equipment) do not affect the temperature sensor. If the condition persists, the device might shut down.

Yellow (minor)

FAN fan-number Fan Sensor Fail

Remove and check fan module for obstructions. Reinsert the fan module. If the problem persists, check the system log for the message related to the sensor and report the message to customer service.

sensor-location Temp Sensor Too Warm

Check the environmental conditions and alarms on other devices. Ensure that environmental factors (such as hot air blowing around the equipment) do not affect the temperature sensor.

Power Supplies

Red (major)

PEM pem-number Not Powered

Install a power supply into the empty slot and ensure the power supply is powered.

Temperature sensors

Major (red)

FPC 0 Temperature Hot

Check environmental conditions and alarms on other devices. Ensure that environmental factors (such as hot air blowing around the equipment) do not affect the temperature sensor. if the condition persists, the device might shut down.

Minor (yellow)

FPC 0 Temperature Warm

Check environmental conditions and alarms on other devices. Ensure that environmental factors (such as hot air blowing around the equipment) do not affect the temperature sensor.

FPC 0 Temp Sensor Fail

Check the system log for the following error message and report the message to customer support:

Routing Engine

Major (red)

RE RE number /var partition is full

File storage is at capacity. Reduce unnecessary files to free space.

Minor (yellow)

RE RE number /var partition is high

File storage is reaching capacity. Reduce unnecessary files to free space.

Management Ethernet interface

Major (red)

Management interface management-interface-name down on node

Check whether a cable is connected to the management Ethernet interface, or whether the cable is defective. Replace the cable, if required.