Troubleshoot the QFX5130 Switch

To troubleshoot a QFX5130 problem, you can use:

• Junos Evolved OS CLI

  The CLI is the primary tool for controlling and troubleshooting hardware, Junos OS Evolved, 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 switch. For more information, see QFX5130 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.

When a QFX5130 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.

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

You can calculate the percentage of fan real-time performance monitoring (RPM) or duty cycle from the output of the following command that you issue when you're logged in as the root user:

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

Chassis alarms on QFX5130 switches have two severity levels:

• Major (red)—Indicates a critical situation on the switch 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 switch 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 the QFX5130 switches.

Junos OS Evolved systems, such as QFX5130-32CD/QFX5130E-32CD and QFX5130-48C, are based on a new alarm infrastructure, not all power supplies and fan alarms are supported. Table 1 shows these alarms.