Troubleshoot the QFX5250
This topic contains some common troubleshooting resources for the QFX5250 and a list of alarms and how to fix them.
Troubleshooting Resources for QFX5250
Use the front panel LEDs to identify alarm conditions and the Junos OS Evolved CLI to troubleshoot the device. You can also contact the Juniper Networks® Technical Assistance Center (JTAC) for support.
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LEDs—When the device detects an alarm condition, the alarm LED on an interface glows red or yellow.
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CLI—The CLI is the primary tool for controlling and troubleshooting hardware, Junos OS Evolved, and network connectivity. CLI command outputs display information about network connectivity, which Junos OS Evolved derives from the ping and traceroute utilities. You can use the CLI to see more information about alarm conditions.
For information about using the CLI to troubleshoot Junos OS Evolved, see the appropriate Junos OS Evolved configuration guide.
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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 in this guide, contact JTAC.
Alarm Types and Alarm Severity
| Term |
Definition |
|---|---|
|
Alarm |
A signal alerting you to conditions that might prevent normal operation. On a device, the alarm signal is the red system LED that is lit on the front of the chassis. |
|
Alarm condition |
A failure event that triggers an alarm. |
|
Alarm severity |
The seriousness of the alarm. The level of severity can be either major or minor. |
Alarm Types
| Term | Definition |
|---|---|
|
Chassis alarms |
A predefined alarm triggered by a physical condition in the device such as a power supply failure or excessive component temperature. |
|
Interface alarms |
An alarm that you configure to alert you when an interface link is down. The alarm applies to Ethernet, Fibre Channel, and management Ethernet interfaces. You can set the alarm as major or minor for a specific link-down condition or have the condition ignored. |
|
System alarms |
A predefined alarm that might be triggered by a missing rescue configuration, failure to install a license for a licensed software feature, or high disk usage. You can configure system alarms to appear automatically in the J-Web interface display or CLI display. |
|
Leakage alarms |
An alarm that is triggered when there is a coolant leakage in the QFX5250 switch. The LEAKAGE LED will be lit red (on steadily) once the leakage is detected. |
|
Pressure alarms |
An alarm that is triggered when the coolant pressure is outside the recommended range for the inlet and outlet UQDB06 ports in QFX5250 switch. For information on the minor and major pressure alarm conditions, see Table 3. |
| Port Type | Minor Alarm | Major Alarm | Fire Shutdown | ||
|---|---|---|---|---|---|
| High | Low | High | Low | ||
| Pressure at inlet port (PSI) | 42 | 20 | 45 | 15 | 47 |
| Pressure at outlet port (PSI) | 37 | 15 | 40 | 10 | 42 |
Alarm Severity
| Term | Definition |
|---|---|
|
Major (red) |
Indicates a critical situation on the router that has resulted from one of the following conditions and that requires immediate action:
|
|
Minor (stable yellow) |
Indicates a noncritical condition in the router that, if left unchecked, might cause an interruption in service or degradation in performance. A minor alarm condition requires monitoring or maintenance. For example, a missing rescue configuration generates a minor system alarm. |
QFX5250 Alarm Messages
When the QFX5250 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, run the show system alarms
operational CLI command.
user@host> show system alarms 0 alarms currently active
For thermal problems, the show chassis temperature-thresholds CLI
command shows the cutoff temperatures for each level of alarm:
user@host> show chassis environment
Class Item Status Measurement
Power PSM 0 OK 36 degrees C / 96 degrees F
PSM 1 OK 36 degrees C / 96 degrees F
PSM 2 OK 36 degrees C / 96 degrees F
Temp FPC 0 TH6 Max Temperature OK 52 degrees C / 125 degrees F
FPC 0 MB Top Left Exhaust OK 52 degrees C / 125 degrees F
FPC 0 MB Top Left Intake OK 52 degrees C / 125 degrees F
FPC 0 MB Top Right Exhaust OK 48 degrees C / 118 degrees F
FPC 0 MB Bottom Middle Exhaust OK 53 degrees C / 127 degrees F
FPC 0 MB Top Right Intake OK 45 degrees C / 113 degrees F
FPC 0 MB_TMP464_Local Temp OK 52 degrees C / 125 degrees F
FPC 0 Routing Engine 0 Board 01 OK 38 degrees C / 100 degrees F
FPC 0 Routing Engine 0 Board 02 OK 49 degrees C / 120 degrees F
FPC 0 Routing Engine 0 Board 03 OK 39 degrees C / 102 degrees F
FPC 0 SFP System Inlet OK 32 degrees C / 89 degrees F
FPC 0 D2D Board Temp OK 36 degrees C / 96 degrees F
FPC 0 Inlet Fluid Temp OK 32 degrees C / 89 degrees F
FPC 0 Outlet Fluid Temp OK 34 degrees C / 93 degrees F
FPC 0 System IO Inlet OK 31 degrees C / 87 degrees F
FPC 0 SFP MPM54322 OK 48 degrees C / 118 degrees F
FPC 0 BMC Board Temp OK 38 degrees C / 100 degrees F
FPC 0 MB_PHYTILE_0_Ext OK 54 degrees C / 129 degrees F
FPC 0 MB_PHYTILE_0_Int OK 54 degrees C / 129 degrees F
FPC 0 MB_PHYTILE_1_Ext OK 51 degrees C / 123 degrees F
FPC 0 MB_PHYTILE_1_Int OK 51 degrees C / 123 degrees F
FPC 0 MB_PHYTILE_2_Ext OK 53 degrees C / 127 degrees F
FPC 0 MB_PHYTILE_2_Int OK 54 degrees C / 129 degrees F
FPC 0 MB_PHYTILE_3_Ext OK 49 degrees C / 120 degrees F
FPC 0 MB_PHYTILE_3_Int OK 49 degrees C / 120 degrees F
FPC 0 MB_PHYTILE_4_Ext OK 52 degrees C / 125 degrees F
FPC 0 MB_PHYTILE_4_Int OK 52 degrees C / 125 degrees F
FPC 0 MB_PHYTILE_5_Ext OK 46 degrees C / 114 degrees F
FPC 0 MB_PHYTILE_5_Int OK 46 degrees C / 114 degrees F
FPC 0 MB_PHYTILE_6_Ext OK 51 degrees C / 123 degrees F
FPC 0 MB_PHYTILE_6_Int OK 52 degrees C / 125 degrees F
FPC 0 MB_PHYTILE_7_Ext OK 46 degrees C / 114 degrees F
FPC 0 MB_PHYTILE_7_Int OK 46 degrees C / 114 degrees F
FPC 0 MB_VDD0P8_Ext OK 59 degrees C / 138 degrees F
FPC 0 MB_VDD0P8_Int OK 59 degrees C / 138 degrees F
FPC 0 MB_TRVDD0V75_0_Ext OK 49 degrees C / 120 degrees F
FPC 0 MB_TRVDD0V75_0_Int OK 49 degrees C / 120 degrees F
FPC 0 MB_TRVDD0V9_0_Ext OK 56 degrees C / 132 degrees F
FPC 0 MB_TRVDD0V9_0_Int OK 55 degrees C / 131 degrees F
FPC 0 MB_TRVDD0V75_1_Ext OK 47 degrees C / 116 degrees F
FPC 0 MB_TRVDD0V75_1_Int OK 47 degrees C / 116 degrees F
FPC 0 MB_TRVDD0V9_1_Ext OK 53 degrees C / 127 degrees F
FPC 0 MB_TRVDD0V9_1_Int OK 53 degrees C / 127 degrees F
FPC 0 MB_TRVDD0V72_0_Ext OK 54 degrees C / 129 degrees F
FPC 0 MB_TRVDD0V72_0_Int OK 56 degrees C / 132 degrees F
FPC 0 MB_TRVDD0V72_1_Ext OK 48 degrees C / 118 degrees F
FPC 0 MB_TRVDD0V72_1_Int OK 48 degrees C / 118 degrees F
FPC 0 MB_TRVDD0V72_2_Ext OK 54 degrees C / 129 degrees F
FPC 0 MB_TRVDD0V72_2_Int OK 55 degrees C / 131 degrees F
FPC 0 MB_TRVDD0V72_3_Ext OK 45 degrees C / 113 degrees F
FPC 0 MB_TRVDD0V72_3_Int OK 45 degrees C / 113 degrees F
FPC 0 MB_RVDD1P5_0_Int OK 56 degrees C / 132 degrees F
FPC 0 MB_RVDD1P5_1_Int OK 56 degrees C / 132 degrees F
Routing Engine 0 CPU Temperature OK 39 degrees C / 102 degrees F
Routing Engine 0 Ch-0 DIMM-0 Temp OK 40 degrees C / 104 degrees F
Routing Engine 0 Ch-1 DIMM-0 Temp OK 40 degrees C / 104 degrees F
Routing Engine 0 SSD-0 Temp OK 51 degrees C / 123 degrees F
Routing Engine 0 SSD-1 Temp OK 50 degrees C / 122 degrees F
Humidity FPC 0 Humidity sensor OK 33 %
Pressure FPC 0 Pressure Sensor Inlet OK 2957 mBar / 42 psi
FPC 0 Pressure Sensor Outlet OK 2261 mBar / 32 psi
Leakage FPC 0 Leakage Sensor Loop1 OK No Leakage (Leakage Score: 0/100)
FPC 0 Leakage Sensor Loop2 OK No Leakage (Leakage Score: 0/100)
FPC 0 Leakage Sensor Loop3 OK No Leakage (Leakage Score: 0/100)
FPC 0 Leakage Sensor Loop4 OK No Leakage (Leakage Score: 0/100)
user@host>
To display environmental information about the QFX5250 switch
chassis, run the CLI command show chassis environment:
user@host> show chassis temperature-thresholds show chassis temperature-thresholds Fan speed Yellow alarm Red alarm Fire Shutdown (degrees C) (degrees C) (degrees C) (degrees C) Item Normal High Normal Bad fan Normal Bad fan Normal Routing Engine 0 CPU Temperature 0 0 92 0 96 0 98 Routing Engine 0 Ch-0 DIMM-0 Temp 0 0 82 0 85 0 88 Routing Engine 0 Ch-1 DIMM-0 Temp 0 0 82 0 85 0 88 Routing Engine 0 SSD-0 Temp 0 0 82 0 85 0 88 Routing Engine 0 SSD-1 Temp 0 0 82 0 85 0 88 FPC 0 TH6 Max Temperature 0 0 95 0 100 0 103 FPC 0 MB Top Left Exhaust 0 0 100 0 103 0 105 FPC 0 MB Top Left Intake 0 0 100 0 103 0 105 FPC 0 MB Top Right Exhaust 0 0 100 0 103 0 105 FPC 0 MB Bottom Middle Exhaust 0 0 100 0 103 0 105 FPC 0 MB Top Right Intake 0 0 100 0 103 0 105 FPC 0 MB_TMP464_Local Temp 0 0 100 0 103 0 105 FPC 0 Routing Engine 0 Board 01 0 0 80 0 85 0 90 FPC 0 Routing Engine 0 Board 02 0 0 80 0 85 0 90 FPC 0 Routing Engine 0 Board 03 0 0 80 0 85 0 90 FPC 0 SFP System Inlet 0 0 65 0 68 0 70 FPC 0 D2D Board Temp 0 0 85 0 95 0 100 FPC 0 Inlet Fluid Temp 0 0 50 0 53 0 55 FPC 0 Outlet Fluid Temp 0 0 60 0 65 0 70 FPC 0 System IO Inlet 0 0 60 0 65 0 70 FPC 0 SFP MPM54322 0 0 100 0 115 0 120 FPC 0 BMC Board Temp 0 0 65 0 68 0 70 FPC 0 MB_PHYTILE_0_Ext 0 0 100 0 115 0 120 FPC 0 MB_PHYTILE_0_Int 0 0 100 0 115 0 120 FPC 0 MB_PHYTILE_1_Ext 0 0 100 0 115 0 120 FPC 0 MB_PHYTILE_1_Int 0 0 100 0 115 0 120 FPC 0 MB_PHYTILE_2_Ext 0 0 100 0 115 0 120 FPC 0 MB_PHYTILE_2_Int 0 0 100 0 115 0 120 FPC 0 MB_PHYTILE_3_Ext 0 0 100 0 115 0 120 FPC 0 MB_PHYTILE_3_Int 0 0 100 0 115 0 120 FPC 0 MB_PHYTILE_4_Ext 0 0 100 0 115 0 120 FPC 0 MB_PHYTILE_4_Int 0 0 100 0 115 0 120 FPC 0 MB_PHYTILE_5_Ext 0 0 100 0 115 0 120 FPC 0 MB_PHYTILE_5_Int 0 0 100 0 115 0 120 FPC 0 MB_PHYTILE_6_Ext 0 0 100 0 115 0 120 FPC 0 MB_PHYTILE_6_Int 0 0 100 0 115 0 120 FPC 0 MB_PHYTILE_7_Ext 0 0 100 0 115 0 120 FPC 0 MB_PHYTILE_7_Int 0 0 100 0 115 0 120 FPC 0 MB_VDD0P8_Ext 0 0 100 0 115 0 120 FPC 0 MB_VDD0P8_Int 0 0 100 0 115 0 120 FPC 0 MB_TRVDD0V75_0_Ext 0 0 100 0 115 0 120 FPC 0 MB_TRVDD0V75_0_Int 0 0 100 0 115 0 120 FPC 0 MB_TRVDD0V9_0_Ext 0 0 100 0 115 0 120 FPC 0 MB_TRVDD0V9_0_Int 0 0 100 0 115 0 120 FPC 0 MB_TRVDD0V75_1_Ext 0 0 100 0 115 0 120 FPC 0 MB_TRVDD0V75_1_Int 0 0 100 0 115 0 120 FPC 0 MB_TRVDD0V9_1_Ext 0 0 100 0 115 0 120 FPC 0 MB_TRVDD0V9_1_Int 0 0 100 0 115 0 120 FPC 0 MB_TRVDD0V72_0_Ext 0 0 100 0 115 0 120 FPC 0 MB_TRVDD0V72_0_Int 0 0 100 0 115 0 120 FPC 0 MB_TRVDD0V72_1_Ext 0 0 100 0 115 0 120 FPC 0 MB_TRVDD0V72_1_Int 0 0 100 0 115 0 120 FPC 0 MB_TRVDD0V72_2_Ext 0 0 100 0 115 0 120 FPC 0 MB_TRVDD0V72_2_Int 0 0 100 0 115 0 120 FPC 0 MB_TRVDD0V72_3_Ext 0 0 100 0 115 0 120 FPC 0 MB_TRVDD0V72_3_Int 0 0 100 0 115 0 120 FPC 0 MB_RVDD1P5_0_Int 0 0 100 0 115 0 120 FPC 0 MB_RVDD1P5_1_Int 0 0 100 0 115 0 120 user@host>
Troubleshoot Chassis and Interface Alarms on the QFX5250 Switch
Table 5 lists the chassis alarm messages on the QFX5250, their severity levels, and the actions you can take to respond to them.
|
Component |
Alarm Type |
CLI Message |
Recommended Action |
|---|---|---|---|
|
Temperature sensors |
Major (red) |
|
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) |
|
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. |
|
|
|
Check the system log for an error message. Report the message to customer support. |
||
|
Routing Engine |
Major (red) |
|
File storage is at capacity. Reduce unnecessary files to free space. |
|
Minor (yellow) |
|
File storage is reaching capacity. Reduce unnecessary files to free space. |
|
|
Management Ethernet interface |
Major (red) |
|
Check whether a cable is connected to the management Ethernet interface, or whether the cable is defective. Replace the cable, if required. |
|
Coolant leakage detection and reporting (Management Ethernet interface over Redfish) |
Red Solid, On Steadily or no indication (applicable only for liquid-cooled model) |
curl -sk -u root:0penBmc \ "https://<BMC_IP>/redfish/v1/Chassis/Chassis_0/ThermalSubsystem/LeakDetection/LeakDetectors/LeakDetector_0" Check `Status.State` in the response: - `"Enabled"` — leak detection is active - `"Disabled"` or `"UnavailableOffline"` — leak detection is suppressed |
Check the current state of leak detection alarm |
|
Red Solid, On Steadily or no indication (applicable only for liquid-cooled model) |
curl -sk -X PATCH \
-u root:0penBmc \
-H "Content-Type: application/json" \
-d '{"Enabled": true}' \
"https://<BMC_IP>/redfish/v1/Chassis/Chassis_0/ThermalSubsystem/LeakDetection/LeakDetectors/LeakDetector_0"
|
Re-enable leak detection alarm | |
|
Red Solid, On Steadily or no indication (applicable only for liquid-cooled model) |
curl -sk -X PATCH \
-u root:0penBmc \
-H "Content-Type: application/json" \
-d '{"Enabled": false}' \
"https://<BMC_IP>/redfish/v1/Chassis/Chassis_0/ThermalSubsystem/LeakDetection/LeakDetectors/LeakDetector_0”
|
Disable leak detection alarm |