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Understanding Chassis Alarms
This topic lists various chassis conditions that are configured to trigger alarms.
Chassis alarms are predefined alarms triggered by a physical condition on the device such as
a power supply failure or excessive component temperature. You can use the show chassis alarms command to display the chassis
alarm information for presently active alarms. Chassis alarms are preset. You cannot modify
them. You cannot clear the alarms for chassis components. Instead, you must remedy the cause
of the alarm.
Chassis Conditions That Trigger Alarms
Various conditions related to the chassis components trigger yellow and red alarms. You cannot configure these conditions.
Chassis Component Alarm Conditions on MX Series 5G Universal Routing Platforms
Chassis Component Alarm Conditions for Guest Network Functions (GNFs)
Chassis Component Alarm Conditions on SRX1500, SRX4100, SRX4200 and SRX4600 devices
For PTX5000 Packet Transport Router chassis component alarm conditions, see the PTX5000 Packet Transport Router Hardware Guide
For T320 Core Router chassis component alarm conditions, see the T320 Core Router Hardware Guide
For T640 Core Router chassis component alarm conditions, see the T640 Core Router Hardware Guide
For T1600 Core Router chassis component alarm conditions, see the T1600 Core Router Hardware Guide
For T4000 Core Router chassis component alarm conditions, see the T4000 Core Router Hardware Guide
For TX Matrix chassis component alarm conditions, see the TX Matrix Router Hardware Guide
For TX Matrix Plus chassis component alarm conditions, see the TX Matrix Plus Router Hardware Guide
- Chassis Component Alarm Conditions on M5 and M10 Routers
- Chassis Component Alarm Conditions on M7i and M10i Routers
- Chassis Component Alarm Conditions on M20 Routers
- Chassis Component Alarm Conditions on M40 Routers
- Chassis Component Alarm Conditions on M40e and M160 Routers
- Chassis Component Alarm Conditions on M120 and M320 Routers
- Chassis Component Alarm Conditions on M320 Routers
- Chassis Component Alarm Conditions on MX Series 5G Universal Routing Platforms
- Backup Routing Engine Alarms
- Chassis Component Alarm Conditions for Guest Network Functions (GNFs)
- Chassis Component Alarm Conditions on SRX1500, SRX4100, SRX4200 and SRX4600 devices
Chassis Component Alarm Conditions on M5 and M10 Routers
Table 1 lists the alarms that the chassis components can generate on M5 and M10 routers.
Chassis Component |
Alarm Condition |
Remedy |
Alarm Severity |
|---|---|---|---|
| Alternative media | The router boots from an alternate boot device, the hard disk. The CompactFlash card is typically the primary boot device. The Routing Engine boots from the hard disk when the primary boot device fails. |
Open a support case using the Case Manager link at www.juniper.net/ or call 1-888-314-JTAC (within the United States) or 1-408-745-9500 (from outside the United States). |
Yellow |
| Craft interface | The craft interface has failed. |
Replace failed craft interface. |
Red |
| Fan trays | One fan tray has been removed from the chassis. |
Install missing fan tray. |
Yellow |
Two or more fan trays have been removed from the chassis. |
Install missing fan trays. |
Red |
|
One fan in the chassis is not spinning or is spinning below required speed. |
Replace failed fan tray. |
Red |
|
| Forwarding Engine Board (FEB) | The control board has failed. If this occurs, the board attempts to reboot. |
Replace failed FEB.
|
Red |
| Flexible PIC Concentrator (FPC) | An FPC has failed. If this occurs, the FPC attempts to reboot. If the FEB sees that an FPC is rebooting too often, it shuts down the FPC. |
Replace failed FPC. |
Red |
| Hot swapping | Too many hot-swap interrupts are occurring. This message generally indicates that a hardware component that plugs into the router’s backplane from the front (generally, an FPC) is broken. |
Replace failed component. |
Red |
| Routing Engine | Error in reading or writing CompactFlash card. |
Reformat CompactFlash card and install bootable image. If this fails, replace failed Routing Engine. |
Yellow |
System booted from hard disk. |
Install bootable image on CompactFlash card. If this fails, replace failed Routing Engine. |
Yellow |
|
CompactFlash card missing in boot list. |
Replace failed Routing Engine. |
Red |
|
Hard disk missing in boot list. |
Replace failed Routing Engine. |
Red |
|
The Ethernet management interface ( |
|
Red |
|
| Power supplies | A power supply has been removed from the chassis. |
Install missing power supply. |
Yellow |
A power supply has failed. |
Replace failed power supply. |
Red |
|
| Temperature | The chassis temperature has exceeded 55 degrees C (131 degrees F), the fans have been turned on to full speed, and one or more fans have failed. |
|
Yellow |
The chassis temperature has exceeded 65 degrees C (149 degrees F), and the fans have been turned on to full speed. |
|
Yellow |
|
The chassis temperature has exceeded 65 degrees C (149 degrees F), and a fan has failed. If this condition persists for more than 4 minutes, the router shuts down. |
|
Red |
|
The chassis temperature has exceeded 75 degrees C (167 degrees F). If this condition persists for more than 4 minutes, the router shuts down. |
|
Red |
|
The temperature sensor has failed. |
Open a support case using the Case Manager link at www.juniper.net/ or call 1-888-314-JTAC (within the United States) or 1-408-745-9500 (from outside the United States). |
Red |
Chassis Component Alarm Conditions on M7i and M10i Routers
Table 2 lists the alarms that the chassis components can generate on M7i and M10i routers.
Chassis Component |
Alarm Condition |
Remedy |
Alarm Severity |
|---|---|---|---|
| Alternative media | The router boots from an alternate boot device, the hard disk. The CompactFlash card is typically the primary boot device. The Routing Engine boots from the hard disk when the primary boot device fails. |
Open a support case using the Case Manager link at https://www.juniper.net/support/ or call 1-888-314-JTAC (within the United States) or 1-408-745-9500 (from outside the United States). |
Yellow |
| Compact FEB (CFEB) | For an M7i router, CFEB has failed. If this occurs, the board attempts to reboot. |
Replace failed CFEB. |
Red |
For an M10i router, both control boards have been removed or have failed. |
Replace failed or missing CFEB. |
Red |
|
Too many hard errors in CFEB memory. |
Replace failed CFEB. |
Red |
|
Too many soft errors in CFEB memory. |
Replace failed CFEB. |
Red |
|
A CFEB microcode download has failed. |
Replace failed CFEB. |
Red |
|
| Fan trays | A fan has failed. |
Replace failed fan tray. |
Red |
For an M7i router, a fan tray has been removed from the chassis. |
Install missing fan tray. |
Red |
|
For an M10i router, both fan trays are absent from the chassis. |
Install missing fan tray. |
Red |
|
For a TX Matrix Plus router, fan tray is not matching the ST-SIB-Ls SIB. |
Install a Rev.3 fan tray. |
Red |
|
| Hot swapping | Too many hot-swap interrupts are occurring. This message generally indicates that a hardware component that plugs into the router’s midplane from the front is broken. |
Replace failed component. |
Red |
| Power supplies | A power supply has been removed. |
Insert missing power supply. |
Yellow |
A power supply has failed. |
Replace failed power supply. |
Red |
|
For an M10i router, only one power supply is operating. |
Insert or replace secondary power supply. |
Red |
|
| Routing Engine | Excessive framing errors on console port. An excessive framing error alarm is triggered when the default framing error threshold of 20 errors per second on a serial port is exceeded. This might be caused by a faulty serial console port cable connected to the device. |
Replace the serial cable connected to the device. If the cable is replaced and no excessive framing errors are detected within 5 minutes from the last detected framing error, the alarm is cleared automatically. |
Yellow |
Error in reading or writing hard disk. |
Reformat hard disk and install bootable image. If this fails, replace failed Routing Engine. |
Yellow |
|
Error in reading or writing CompactFlash card. |
Reformat CompactFlash card and install bootable image. If this fails, replace failed Routing Engine. |
Yellow |
|
System booted from hard disk. This alarm only applies, if you have an optional CompactFlash card. |
Install bootable image on CompactFlash card. If this fails, replace failed Routing Engine. |
Yellow |
|
CompactFlash card missing in boot list. |
Replace failed Routing Engine. |
Red |
|
Hard disk missing in boot list. |
Replace failed Routing Engine. |
Red |
|
Routing Engine failed to boot. |
Replace failed Routing Engine. |
Red |
|
The Ethernet management interface ( |
|
Red |
|
| Temperature | The chassis temperature has exceeded 55 degrees C (131 degrees F), the fans have been turned on to full speed, and one or more fans have failed. |
|
Yellow |
The chassis temperature has exceeded 65 degrees C (149 degrees F), and the fans have been turned on to full speed. |
|
Yellow |
|
The chassis temperature has exceeded 65 degrees C (149 degrees F), and a fan has failed. If this condition persists for more than 4 minutes, the router shuts down. |
|
Red |
|
The chassis temperature has exceeded 75 degrees C (167 degrees F). If this condition persists for more than 4 minutes, the router shuts down. |
|
Red |
|
The temperature sensor has failed. |
Open a support case using the Case Manager link at https://www.juniper.net/support/ or call 1-888-314-JTAC (within the United States) or 1-408-745-9500 (from outside the United States). |
Red |
Chassis Component Alarm Conditions on M20 Routers
Table 3 lists the alarms that the chassis components can generate on M20 routers.
Chassis Component |
Alarm Condition |
Remedy |
Alarm Severity |
|---|---|---|---|
| Alternative media | The router boots from an alternate boot device, the hard disk. The CompactFlash card is typically the primary boot device. The Routing Engine boots from the hard disk when the primary boot device fails. |
Open a support case using the Case Manager link at https://www.juniper.net/support/ or call 1-888-314-JTAC (within the United States) or 1-408-745-9500 (from outside the United States). |
Yellow |
| Craft interface | The craft interface has failed. |
Replace failed craft interface. |
Red |
| Fan trays | One fan tray has been removed from the chassis. |
Install missing fan tray. |
Yellow |
Two or more fan trays have been removed from the chassis. |
Install missing fan trays. |
Red |
|
One fan in the chassis is not spinning or is spinning below requires speed. |
Replace fan tray. |
Red |
|
| FPC | An FPC has failed. If this occurs, the FPC attempts to reboot. If the System and Switch Board (SSB) sees that an FPC is rebooting too often, it shuts down the FPC. |
Replace failed FPC. |
Red |
| Hot swapping | Too many hot-swap interrupts are occurring. This message generally indicates that a hardware component that plugs in to the router’s backplane from the front (generally, an FPC) is broken. |
Replace failed component. |
Red |
| Routing Engine | Excessive framing errors on console port. An excessive framing error alarm is triggered when the default framing error threshold of 20 errors per second on a serial port is exceeded. This might be caused by a faulty serial console port cable connected to the device. |
Replace the serial cable connected to the device. If the cable is replaced and no excessive framing errors are detected within 5 minutes from the last detected framing error, the alarm is cleared automatically. |
Yellow |
Error in reading or writing hard disk. |
Reformat hard disk and install bootable image. If this fails, replace failed Routing Engine. |
Yellow |
|
Error in reading or writing CompactFlash card. |
Reformat CompactFlash card and install bootable image. If this fails, replace failed Routing Engine. |
Yellow |
|
System booted from default backup Routing Engine. If you manually switched mastership, ignore this alarm condition. |
Install bootable image on default primary Routing Engine. If this fails, replace failed Routing Engine. |
Yellow |
|
System booted from hard disk. |
Install bootable image on CompactFlash card. If this fails, replace failed Routing Engine. |
Yellow |
|
CompactFlash card missing in boot list. |
Replace failed Routing Engine. |
Red |
|
Hard disk missing in boot list. |
Replace failed Routing Engine. |
Red |
|
The Ethernet management interface ( |
|
Red |
|
Routing Engine failed to boot. |
Replace failed Routing Engine. |
Red |
|
| Power supplies | A power supply has been removed from the chassis. |
Insert power supply into empty slot. |
Yellow |
A power supply has failed. |
Replace failed power supply. |
Red |
|
| SSB | The control board has failed. If this occurs, the board attempts to reboot. |
Replace failed control board. |
Red |
| Temperature | The chassis temperature has exceeded 55 degrees C (131 degrees F), the fans have been turned on to full speed, and one or more fans have failed. |
|
Yellow |
The chassis temperature has exceeded 65 degrees C (149 degrees F), and the fans have been turned on to full speed. |
|
Yellow |
|
The chassis temperature has exceeded 65 degrees C (149 degrees F), and a fan has failed. If this condition persists for more than 4 minutes, the router shuts down. |
|
Red |
|
The chassis temperature has exceeded 75 degrees C (167 degrees F). If this condition persists for more than 4 minutes, the router shuts down. |
|
Red |
|
The temperature sensor has failed. |
Open a support case using the Case Manager link at https://www.juniper.net/support/ or call 1-888-314-JTAC (within the United States) or 1-408-745-9500 (from outside the United States). |
Red |
Chassis Component Alarm Conditions on M40 Routers
Table 4 lists the alarms that the chassis components can generate on M40 routers.
Chassis Component |
Alarm Condition |
Remedy |
Alarm Severity |
|---|---|---|---|
| Air filter | Change air filter. |
Change air filter. |
Yellow |
| Alternative media | The router boots from an alternate boot device, the hard disk. The CompactFlash card is typically the primary boot device. The Routing Engine boots from the hard disk when the primary boot device fails. |
Open a support case using the Case Manager link at https://www.juniper.net/support/ or call 1-888-314-JTAC (within the United States) or 1-408-745-9500 (from outside the United States). |
Yellow |
| Craft interface | The craft interface has failed. |
Replace failed craft interface. |
Red |
| Fan trays | One fan tray has been removed from the chassis. |
Install missing fan tray. |
Yellow |
Two or more fan trays have been removed from the chassis. |
Install missing fan trays. |
Red |
|
One fan in the chassis is not spinning or is spinning below required speed. |
Replace fan tray. |
Red |
|
| FPC | An FPC has an out of range or invalid temperature reading. |
Replace failed FPC. |
Yellow |
An FPC microcode download has failed. |
Replace failed FPC. |
Red |
|
An FPC has failed. If this occurs, the FPC attempts to reboot. If the SCB sees that an FPC is rebooting too often, it shuts down the FPC. |
Replace failed FPC. |
Red |
|
Too many hard errors in FPC memory. |
Replace failed FPC. |
Red |
|
Too many soft errors in FPC memory. |
Replace failed FPC. |
Red |
|
| Hot swapping | Too many hot-swap interrupts are occurring. This message generally indicates that a hardware component that plugs into the router’s backplane from the front (generally, an FPC) is broken. |
Replace failed component. |
Red |
| Power supplies | A power supply has been removed from the chassis. |
Insert power supply into empty slot. |
Yellow |
A power supply temperature sensor has failed. |
Replace failed power supply or power entry module. |
Yellow |
|
A power supply fan has failed. |
Replace failed power supply fan. |
Yellow |
|
A power supply has high temperature. |
Replace failed power supply or power entry module. |
Red |
|
A 5-V power supply has failed. |
Replace failed power supply or power entry module. |
Red |
|
A 3.3-V power supply has failed. |
Replace failed power supply or power entry module. |
Red |
|
A 2.5-V power supply has failed. |
Replace failed power supply or power entry module. |
Red |
|
A power supply input has failed. |
Check power supply input connection. |
Red |
|
A power supply has failed. |
Replace failed power supply or power entry module. |
Red |
|
| Routing Engine | Excessive framing errors on console port. An excessive framing error alarm is triggered when the default framing error threshold of 20 errors per second on a serial port is exceeded. This might be caused by a faulty serial console port cable connected to the device. |
Replace the serial cable connected to the device. If the cable is replaced and no excessive framing errors are detected within 5 minutes from the last detected framing error, the alarm is cleared automatically. |
Yellow |
Error in reading or writing hard disk. |
Reformat hard disk and install bootable image. If this fails, replace failed Routing Engine. |
Yellow |
|
Error in reading or writing CompactFlash card. |
Reformat CompactFlash card and install bootable image. If this fails, replace failed Routing Engine. |
Yellow |
|
System booted from default backup Routing Engine. If you manually switched mastership, ignore this alarm condition. |
Install bootable image on default primary Routing Engine. If this fails, replace failed Routing Engine. |
Yellow |
|
System booted from hard disk. |
Install bootable image on CompactFlash card. If this fails, replace failed Routing Engine. |
Yellow |
|
CompactFlash card missing in boot list. |
Replace failed Routing Engine. |
Red |
|
Hard disk missing in boot list. |
Replace failed Routing Engine. |
Red |
|
Routing Engine failed to boot. |
Replace failed Routing Engine. |
Red |
|
The Ethernet management interface ( |
|
Red |
|
| SCB | The System Control Board (SCB) has failed. If this occurs, the board attempts to reboot. |
Replace failed SCB. |
Red |
| Temperature | The chassis temperature has exceeded 55 degrees C (131 degrees F), the fans have been turned on to full speed, and one or more fans have failed. |
|
Yellow |
The chassis temperature has exceeded 65 degrees C (149 degrees F), and the fans have been turned on to full speed. |
|
Yellow |
|
The chassis temperature has exceeded 65 degrees C (149 degrees F), and a fan has failed. If this condition persists for more than 4 minutes, the router shuts down. |
|
Red |
|
The chassis temperature has exceeded 75 degrees C (167 degrees F). If this condition persists for more than 4 minutes, the router shuts down. |
|
Red |
|
The temperature sensor has failed. |
Open a support case using the Case Manager link at https://www.juniper.net/support/ or call 1-888-314-JTAC (within the United States) or 1-408-745-9500 (from outside the United States). |
Red |
Chassis Component Alarm Conditions on M40e and M160 Routers
Table 5 lists the alarms that the chassis components can generate on M40e and M160 routers.
Chassis Component |
Alarm Condition |
Remedy |
Alarm Severity |
|---|---|---|---|
| Air filter | Change air filter. |
Change air filter. |
Yellow |
| Alternative media | The router boots from an alternate boot device, the hard disk. The CompactFlash card is typically the primary boot device. The Routing Engine boots from the hard disk when the primary boot device fails. |
Open a support case using the Case Manager link at https://www.juniper.net/support/ or call 1-888-314-JTAC (within the United States) or 1-408-745-9500 (from outside the United States). |
Yellow |
| Connector Interface Panel (CIP) | A CIP is missing. |
Insert CIP into empty slot. |
Red |
| Craft interface | The craft interface has failed. |
Replace failed craft interface. |
Red |
| Fan trays | One fan tray has been removed from the chassis. |
Install missing fan tray. |
Yellow |
Two or more fan trays have been removed from the chassis. |
Install missing fan trays. |
Red |
|
One fan in the chassis is not spinning or spinning below required speed. |
Replace fan tray. |
Red |
|
| FPC | An FPC has an out of range or invalid temperature reading. |
Replace failed FPC. |
Yellow |
An FPC microcode download has failed. |
Replace failed FPC. |
Red |
|
An FPC has failed. If this occurs, the FPC attempts to reboot. If the MCS sees that an FPC is rebooting too often, it shuts down the FPC. |
Replace failed FPC. |
Red |
|
Too many hard errors in FPC memory. |
Replace failed FPC. |
Red |
|
Too many soft errors in FPC memory. |
Replace failed FPC. |
Red |
|
| Hot swapping | Too many hot-swap interrupts are occurring. This message generally indicates that a hardware component that plugs into the router’s backplane from the front (generally, an FPC) is broken. |
Replace failed component. |
Red |
| Miscellaneous Control Subsystem (MCS) | An MCS has an out of range or invalid temperature reading. |
Replace failed MCS. |
Yellow |
MCS0 has been removed. |
Reinstall MCS0. |
Yellow |
|
An MCS has failed. |
Replace failed MCS. |
Red |
|
| Packet Forwarding Engine Clock Generator (PCG) | A backup PCG is offline. |
Set backup PCG online. |
Yellow |
A PCG has an out of range or invalid temperature reading. |
Replace failed PCG. |
Yellow |
|
A PCG has been removed. |
Insert PCG into empty slot. |
Yellow |
|
A PCG has failed to come online. |
Replace failed PCG. |
Red |
|
| Routing Engine | Excessive framing errors on console port. An excessive framing error alarm is triggered when the default framing error threshold of 20 errors per second on a serial port is exceeded. This might be caused by a faulty serial console port cable connected to the device. |
Replace the serial cable connected to the device. If the cable is replaced and no excessive framing errors are detected within 5 minutes from the last detected framing error, the alarm is cleared automatically. |
Yellow |
Error in reading or writing hard disk. |
Reformat hard disk and install bootable image. If this fails, replace failed Routing Engine. |
Yellow |
|
Error in reading or writing CompactFlash card. |
Reformat CompactFlash card and install bootable image. If this fails, replace failed Routing Engine. |
Yellow |
|
System booted from default backup Routing Engine. If you manually switched mastership, ignore this alarm condition. |
Install bootable image on default primary Routing Engine. If this fails, replace failed Routing Engine. |
Yellow |
|
System booted from hard disk. |
Install bootable image on CompactFlash card. If this fails, replace failed Routing Engine. |
Yellow |
|
CompactFlash card missing in boot list. |
Replace failed Routing Engine. |
Red |
|
Hard disk missing in boot list. |
Replace failed Routing Engine. |
Red |
|
Routing Engine failed to boot. |
Replace failed Routing Engine. |
Red |
|
The Ethernet management interface ( |
|
Red |
|
| Power supplies | A power supply has been removed from the chassis. |
Insert power supply into empty slot. |
Yellow |
A power supply has failed. |
Replace failed power supply. |
Red |
|
| Switching and Forwarding Module (SFM) | An SFM has an out of range or invalid temperature reading on SPP. |
Replace failed SFM. |
Yellow |
An SFM has an out of range or invalid temperature reading on SPR. |
Replace failed SFM. |
Yellow |
|
An SFM is offline. |
Set SFM online. |
Yellow |
|
An SFM has failed. |
Replace failed SFM. |
Red |
|
An SFM has been removed from the chassis. |
Insert SFM into empty slot. |
Red |
|
All SFMs are offline or missing from the chassis. |
Insert SFMs into empty slots or set all SFMs online. |
Red |
|
| Temperature | The chassis temperature has exceeded 55 degrees C (131 degrees F), the fans have been turned on to full speed, and one or more fans have failed. |
|
Yellow |
The chassis temperature has exceeded 65 degrees C (149 degrees F), and the fans have been turned on to full speed. |
|
Yellow |
|
The chassis temperature has exceeded 65 degrees C (149 degrees F), and a fan has failed. If this condition persists for more than 4 minutes, the router shuts down. |
|
Red |
|
The chassis temperature has exceeded 75 degrees C (167 degrees F). If this condition persists for more than 4 minutes, the router shuts down. |
|
Red |
|
The temperature sensor has failed. |
Open a support case using the Case Manager link at https://www.juniper.net/support/ or call 1-888-314-JTAC (within the United States) or 1-408-745-9500 (from outside the United States). |
Red |
Chassis Component Alarm Conditions on M120 and M320 Routers
Table 6 lists the alarms that the chassis components can generate on M120 routers.
Chassis Component |
Alarm Condition |
Remedy |
Alarm Severity |
|---|---|---|---|
| Air filters | Change air filter. |
Change air filter. |
Yellow |
| Alternative media | The router boots from an alternate boot device, the hard disk. The CompactFlash card is typically the primary boot device. The Routing Engine boots from the hard disk when the primary boot device fails. |
Open a support case using the Case Manager link at https://www.juniper.net/support/ or call 1-888-314-JTAC (within the United States) or 1-408-745-9500 (from outside the United States). |
Yellow |
| Control Board (CB) | A CB Ethernet switch has failed. |
Replace failed CB. |
Yellow |
A CB has been removed. |
Insert CB into empty slot. |
Red |
|
A CB has failed. |
Replace failed CB. |
Red |
|
| Craft interface | The craft interface has failed. |
Replace failed craft interface. |
Red |
| Fan trays | One fan tray has been removed from the chassis. |
Install missing fan tray. |
Yellow |
Two or more fan trays have been removed from the chassis. |
Install missing fan trays. |
Red |
|
One fan in the chassis is not spinning or is spinning below required speed. |
Replace fan tray. |
Red |
|
| Forwarding Engine Boards (FEBs) | A spare FEB has failed. |
Replace failed FEB. |
Yellow |
A spare FEB has been removed. |
Insert FEB into empty slot. |
Yellow |
|
A FEB is offline. |
Check FEB. Remove and reinsert the FEB. If this fails, replace failed FEB. |
Yellow |
|
A FEB has failed. |
Replace failed FEB. |
Red |
|
A FEB has been removed. |
Insert FEB into empty slot. |
Red |
|
| Host subsystem | A host subsystem has failed. |
Replace the host subsystem. |
Yellow |
A host subsystem has been removed. |
Insert host subsystem into empty slot. |
Red |
|
| Hot swapping | Too many hot-swap interrupts are occurring. This message generally indicates that a hardware component that plugs into the router’s backplane from the front (generally, an FPC) is broken. |
Replace failed component. |
Red |
| Power supplies | A power supply has been removed from the chassis. |
Insert power supply into empty slot. |
Yellow |
A power supply has a high temperature. |
Replace failed power supply or power entry module. |
Red |
|
A power supply input has failed. |
Check power supply input connection. |
Red |
|
A power supply output has failed. |
Check power supply output connection. |
Red |
|
A power supply has failed. |
Replace failed power supply. |
Red |
|
| Routing Engine | Excessive framing errors on console port. An excessive framing error alarm is triggered when the default framing error threshold of 20 errors per second on a serial port is exceeded. This might be caused by a faulty serial console port cable connected to the device. |
Replace the serial cable connected to the device. If the cable is replaced and no excessive framing errors are detected within 5 minutes from the last detected framing error, the alarm is cleared automatically. |
Yellow |
Error in reading or writing hard disk. |
Reformat hard disk and install bootable image. If this fails, replace failed Routing Engine. |
||
Error in reading or writing CompactFlash card. |
Reformat CompactFlash card and install bootable image. If this fails, replace failed Routing Engine. |
Yellow |
|
System booted from default backup Routing Engine. If you manually switched mastership, ignore this alarm condition. |
Install bootable image on default primary Routing Engine. If this fails, replace failed Routing Engine. |
Yellow |
|
System booted from hard disk. |
Install bootable image on CompactFlash card. If this fails, replace failed Routing Engine. |
Yellow |
|
CompactFlash card missing in boot list. |
Replace failed Routing Engine. |
Red |
|
Hard disk missing in boot list. |
Replace failed Routing Engine. |
Red |
|
Routing Engine failed to boot. |
Replace failed Routing Engine. |
Red |
|
The Ethernet management interface ( |
|
Red |
|
| Temperature | The chassis temperature has exceeded 55 degrees C (131 degrees F), the fans have been turned on to full speed, and one or more fans have failed. |
|
Yellow |
The chassis temperature has exceeded 65 degrees C (149 degrees F), and the fans have been turned on to full speed. |
|
Yellow |
|
The chassis temperature has exceeded 65 degrees C (149 degrees F), and a fan has failed. If this condition persists for more than 4 minutes, the router shuts down. |
|
Red |
|
Chassis temperature has exceeded 75 degrees C (167 degrees F). If this condition persists for more than 4 minutes, the router shuts down. |
|
Red |
|
The temperature sensor has failed. |
Open a support case using the Case Manager link at https://www.juniper.net/support/ or call 1-888-314-JTAC (within the United States) or 1-408-745-9500 (from outside the United States). |
Red |
Chassis Component Alarm Conditions on M320 Routers
Table 7 lists the alarms that the chassis components can generate on M320 routers.
Chassis Component |
Alarm Condition |
Remedy |
Alarm Severity |
|---|---|---|---|
| Air filters | Change air filter. |
Change air filter. |
Yellow |
| Alternative media | The router boots from an alternate boot device, the hard disk. The CompactFlash card is typically the primary boot device. The Routing Engine boots from the hard disk when the primary boot device fails. |
Open a support case using the Case Manager link at https://www.juniper.net/support/ or call 1-888-314-JTAC (within the United States) or 1-408-745-9500 (from outside the United States). |
Yellow |
| Control Board (CB) | A CB has been removed. |
Insert CB into empty slot. |
Yellow |
A CB temperature sensor alarm has failed. |
Replace failed CB. |
Yellow |
|
A CB has failed. |
Replace failed CB. |
Red |
|
| CIP | A CIP is missing. |
Insert CIP into empty slot. |
Red |
| Craft interface | The craft interface has failed. |
Replace failed craft interface. |
Red |
| Fan trays | One fan tray has been removed from the chassis. |
Install missing fan tray. |
Yellow |
Two or more fan trays have been removed from the chassis. |
Install missing fan trays. |
Red |
|
One fan in the chassis is not spinning or is spinning below required speed. |
Replace fan tray. |
Red |
|
| FPC | An FPC has an out of range or invalid temperature reading. |
Replace failed FPC. |
Yellow |
An FPC microcode download has failed. |
Replace failed FPC. |
Red |
|
An FPC has failed. If this occurs, the FPC attempts to reboot. If the CB sees that an FPC is rebooting too often, it shuts down the FPC. |
Replace failed FPC. |
Red |
|
Too many hard errors in FPC memory. |
Replace failed FPC. |
Red |
|
Too many soft errors in FPC memory. |
Replace failed FPC. |
Red |
|
| Hot swapping | Too many hot-swap interrupts are occurring. This message generally indicates that a hardware component that plugs into the router’s backplane from the front (generally, an FPC) is broken. |
Replace failed component. |
Red |
| Power supplies | A power supply has been removed from the chassis. |
Insert power supply into empty slot. |
Yellow |
A power supply has failed. |
Replace failed power supply. |
Red |
|
| Routing Engine | Excessive framing errors on console port. An excessive framing error alarm is triggered when the default framing error threshold of 20 errors per second on a serial port is exceeded. This might be caused by a faulty serial console port cable connected to the device. |
Replace the serial cable connected to the device. If the cable is replaced and no excessive framing errors are detected within 5 minutes from the last detected framing error, the alarm is cleared automatically. |
Yellow |
Error in reading or writing hard disk. |
Reformat hard disk and install bootable image. If this fails, replace failed Routing Engine. |
Yellow |
|
Error in reading or writing CompactFlash card. |
Reformat CompactFlash card and install bootable image. If this fails, replace failed Routing Engine. |
Yellow |
|
System booted from default backup Routing Engine. If you manually switched mastership, ignore this alarm condition. |
Install bootable image on default primary Routing Engine. If this fails, replace failed Routing Engine. |
Yellow |
|
System booted from hard disk. |
Install bootable image on CompactFlash card. If this fails, replace failed Routing Engine. |
Yellow |
|
CompactFlash card missing in boot list. |
Replace failed Routing Engine. |
Red |
|
Hard disk missing in boot list. |
Replace failed Routing Engine. |
Red |
|
Routing Engine failed to boot. |
Replace failed Routing Engine. |
Red |
|
A spare SIB is missing. |
Insert spare SIB in to empty slot. |
Yellow |
|
The Ethernet management interface ( |
|
Red |
|
| Switch Interface Board (SIB) | A SIB has failed. |
Replace failed SIB. |
Yellow |
A spare SIB has failed. |
Replace failed SIB. |
Yellow |
|
A SIB has an out of range or invalid temperature reading. |
Replace failed SIB. |
Yellow |
|
A SIB is missing. |
Insert SIB into empty slot. |
Red |
|
A SIB has failed. |
Replace failed SIB. |
Red |
|
The chassis temperature has exceeded 55 degrees C (131 degrees F), the fans have been turned on to full speed, and one or more fans have failed. |
|
Yellow |
|
| Temperature | The chassis temperature has exceeded 65 degrees C (149 degrees F), and the fans have been turned on to full speed. |
|
Yellow |
The chassis temperature has exceeded 65 degrees C (149 degrees F), and a fan has failed. If this condition persists for more than 4 minutes, the router shuts down. |
|
Red |
|
Chassis temperature has exceeded 75 degrees C (167 degrees F). If this condition persists for more than 4 minutes, the router shuts down. |
|
Red |
|
The temperature sensor has failed. |
Open a support case using the Case Manager link at https://www.juniper.net/support/ or call 1-888-314-JTAC (within the United States) or 1-408-745-9500 (from outside the United States). |
Red |
|
Chassis Component Alarm Conditions on MX Series 5G Universal Routing Platforms
Table 8 lists the alarms that the chassis components can generate on MX Series 5G Universal Routing Platforms.
Chassis Component |
Alarm Condition |
Remedy |
Alarm Severity |
|---|---|---|---|
| Air filters | Change air filter. |
Change air filter. |
Yellow |
| Alternative media | The router boots from an alternate boot device, the hard disk. The CompactFlash card is typically the primary boot device. The Routing Engine boots from the hard disk when the primary boot device fails. |
Open a support case using the Case Manager link at https://www.juniper.net/support/ or call 1-888-314-JTAC (within the United States) or 1-408-745-9500 (from outside the United States). |
Yellow |
| Craft interface | The craft interface has failed. |
Replace failed craft interface. |
Red |
| Dense Port Concentrators (DPC)s | A DPC is offline. |
Check DPC. Remove and reinsert the DPC. If this fails, replace failed DPC. |
Yellow |
A DPC has failed. |
Replace failed DPC. |
Red |
|
A DPC has been removed. |
Insert DPC into empty slot. |
Red |
|
| Fan trays | A fan tray has been removed from the chassis. |
Install missing fan tray. |
Red |
One fan in the chassis is not spinning or is spinning below required speed. |
Replace fan tray. |
Red |
|
A higher-cooling capacity fan tray is required when an MPC is installed on the chassis. |
Upgrade to a high-capacity fan tray. |
Yellow |
|
| Host subsystem | A host subsystem has been removed. |
Insert host subsystem into empty slot. |
Yellow |
A host subsystem has failed. |
Replace failed host subsystem. |
Red |
|
| Hot swapping | Too many hot-swap interrupts are occurring. This message generally indicates that a hardware component that plugs into the router’s backplane from the front (generally, an FPC) is broken. |
Replace failed component. |
Red |
| Power supplies | A power supply has been removed from the chassis. |
Insert power supply into empty slot. |
Yellow |
A power supply has a high temperature. |
Replace failed power supply or power entry module. |
Red |
|
A power supply input has failed. |
Check power supply input connection. |
Red |
|
A power supply output has failed. |
Check power supply output connection. |
Red |
|
A power supply has failed. |
Replace failed power supply. |
Red |
|
Invalid AC power supply configuration. |
When two AC power supplies are installed, insert one power supply into an odd-numbered slot and the other power supply into an even-numbered slot. |
Red |
|
Invalid DC power supply configuration. |
When two DC power supplies are installed, insert one power supply into an odd-numbered slot and the other power supply into an even-numbered slot. |
Red |
|
Mix of AC and DC power supplies. |
Do not mix AC and DC power supplies. For DC power, remove the AC power supply. For AC power, remove the DC power supply. |
Red |
|
Not enough power supplies. |
Install an additional power supply. |
Red |
|
| Routing Engine | Excessive framing errors on console port. An excessive framing error alarm is triggered when the default framing error threshold of 20 errors per second on a serial port is exceeded. This might be caused by a faulty serial console port cable connected to the device. |
Replace the serial cable connected to the device. If the cable is replaced and no excessive framing errors are detected within 5 minutes from the last detected framing error, the alarm is cleared automatically. |
Yellow |
Error in reading or writing hard disk. |
Reformat hard disk and install bootable image. If this fails, replace failed Routing Engine. |
Yellow |
|
Error in reading or writing CompactFlash card. |
Reformat CompactFlash card and install bootable image. If this fails, replace failed Routing Engine. |
Yellow |
|
System booted from default backup Routing Engine. If you manually switched mastership, ignore this alarm condition. |
Install bootable image on default primary Routing Engine. If this fails, replace failed Routing Engine. |
Yellow |
|
System booted from hard disk. |
Install bootable image on CompactFlash card. If this fails, replace failed Routing Engine. |
Yellow |
|
CompactFlash card missing in boot list. |
Replace failed Routing Engine. |
Red |
|
Hard disk missing in boot list. |
Replace failed Routing Engine. |
Red |
|
Routing Engine failed to boot. |
Replace failed Routing Engine. |
Red |
|
The Ethernet management interface ( |
|
Red |
|
| System Control Board (SCB) | An SCB has been removed. |
Insert SCB into empty slot. |
Yellow |
An SCB temperature sensor alarm has failed. |
Replace failed SCB. |
Yellow |
|
An SCB has failed. |
Replace failed SCB. |
Red |
|
| Temperature | The chassis temperature has exceeded 55 degrees C (131 degrees F), the fans have been turned on to full speed, and one or more fans have failed. |
|
Yellow |
The chassis temperature has exceeded 65 degrees C (149 degrees F), and the fans have been turned on to full speed. |
|
Yellow |
|
The chassis temperature has exceeded 65 degrees C (149 degrees F), and a fan has failed. If this condition persists for more than 4 minutes, the router shuts down. |
|
Red |
|
Chassis temperature has exceeded 75 degrees C (167 degrees F). If this condition persists for more than 4 minutes, the router shuts down. |
|
Red |
|
The temperature sensor has failed. |
Open a support case using the Case Manager link at https://www.juniper.net/support/ or call 1-888-314-JTAC (within the United States) or 1-408-745-9500 (from outside the United States). |
Red |
|
Flexible PIC Concentrator (FPC) |
FPC <slot number> Major Errors On MX Series routers with MPC1 and MPC2 line cards, a major chassis alarm is raised when the following transient hardware errors occur
By default, these errors result in the Packet Forwarding Engine
interfaces on the FPC being disabled. You can use the You can check the syslog messages to know more about the errors. |
To resolve the error, restart the line card. If the error is still not resolved, open a support case using the Case Manager link at https://www.juniper.net/support/ or call 1-888-314-JTAC (within the United States) or 1-408-745-9500 (from outside the United States). |
Red |
Backup Routing Engine Alarms
For routers with primary and backup Routing Engines, a primary Routing Engine can generate alarms for events that occur on a backup Routing Engine. Table 9 lists chassis alarms generated for a backup Routing Engine.
Because the failure occurs on the backup Routing Engine, alarm severity for some events (such as Ethernet interface failures) is yellow instead of red.
For information about configuring redundant Routing Engines, see the Junos OS High Availability Library for Routing Devices.
Chassis Component |
Alarm Condition |
Remedy |
Alarm Severity |
|---|---|---|---|
| Alternative media | The backup Routing Engine boots from an alternate boot device, the hard disk. The CompactFlash card is typically the primary boot device. The Routing Engine boots from the hard disk when the primary boot device fails. |
Open a support case using the Case Manager link at https://www.juniper.net/support/ or call 1-888-314-JTAC (within the United States) or 1-408-745-9500 (from outside the United States). |
Yellow |
| Boot Device | The boot device (CompactFlash or hard disk) is missing in boot list on the backup Routing Engine. |
Replace failed backup Routing Engine. |
Red |
| Ethernet | The Ethernet management interface ( |
|
Yellow |
| FRU Offline | The backup Routing Engine has stopped communicating with the master Routing Engine. |
Open a support case using the Case Manager link at https://www.juniper.net/support/ or call 1-888-314-JTAC (within the United States) or 1-408-745-9500 (from outside the United States). |
Yellow |
| Hard Disk | Error in reading or writing hard disk on the backup Routing Engine. |
Reformat hard disk and install bootable image. If this fails, replace failed backup Routing Engine. |
Yellow |
| Multibit Memory ECC | The backup Routing Engine reports a multibit ECC error. |
|
Yellow |
Chassis Component Alarm Conditions for Guest Network Functions (GNFs)
Table 10 lists the Chassis conditions that trigger alarms on guest network functions (GNFs).
Read more about GNFs in this Junos Node Slicing article.
Chassis Component |
Alarm Condition |
Remedy |
Alarm Severity |
|---|---|---|---|
| Routing Engine | Mixed Master and Backup RE types This alarm is raised when the GNF primary Routing Engine and GNF Backup Routing Engine have been assigned either mismatching frequencies ( with difference above 100 MHz), mismatching numbers of cores, or DRAM. |
Correct the differences and then relaunch the corrected GNF Routing Engine. |
Yellow |
| Routing Engine | System Incompatibility with BSYS The alarm is shown when any incompatibilities between BSYS and GNF software versions cause the GNF to go offline. |
Make the required changes to the BSYS or GNF software through upgrade. |
Red |
| Routing Engine | Feature Incompatibility with BSYS Indicates a minor incompatibility between BSYS and GNF software versions. This could result in a:
|
Make the required changes to the BSYS or GNF software through upgrade. |
Yellow |
Chassis Component Alarm Conditions on SRX1500, SRX4100, SRX4200 and SRX4600 devices
Table 11 lists
the alarms that the chassis components can generate on SRX1500, SRX4100,
SRX4200 and SRX4600 devices. Execute show chassis alarms operational mode command on SRX1500, SRX4100, SRX4200 and SRX4600
devices to view the alarm.
Chassis Component |
Alarm Name/ Condition |
Remedy |
Alarm Severity |
|---|---|---|---|
| Power supply unit (PSU) |
Appears when one among the two PSU is not available or not energized for SRX1500, SRX4100, and SRX4200. |
Install the missing PSU or refer pem abscence |
Red |
| Power supply unit (PSU) |
Appears when one among the two PSU is not available or not energized for SRX4600. |
Install the missing PSU or refer pem abscence |
Yellow |
| FPC Line Card |
FPC Inefficient Port Mapping: Appears when the two port blocks 0/0 - 0/3 and 0/4 - 0/7 are unequally used on the SRX4100 or SRX4200. |
This minor alarm is triggered when the two port blocks 0/0 - 0/3 and 0/4 - 0/7 are unequally used. The alarm is cleared when the ports in UP status are more equally distributed over the two port blocks. |
Yellow |
MX204 LED Scheme Overview
LEDs on the interface cards display the status of the ports. In MX204 router, there are four port LEDs per port. Each port provides an individual status LED with four states signaled by the color/LED state: OFF, GREEN, AMBER, RED.
The following port LED display modes are defined:
Normal—Represents the normal working mode of the LED. By default, the port status display mode is Normal.
Port location—The port location mode is ON when a remote operator initiates a port location command for a port or a group of ports.
The following factors trigger a change in the port LED color:
Change in the port state. For example, loss of signal (LOS) to no LOS, remote fault, or local fault
Pluggable insertion or removal
Change in configuration
Activation or deactivation of port location feature
Table 12 summarizes the state and color rules for the port LEDs. These rules help in determining the port LED color. When port location mode is activated, the port LED state or color can be determined from the Port Location ON column.
In MX204 router, there are four port LEDs per port. On PIC 0, if the port operates at the speed of 40-Gbps or 100-Gbps, then the first LED of PIC 1 will be ON and the other three LEDs will be OFF. And, if the port operates at the speed of 10-Gbps, then all the LEDs will be ON.
Pluggable Inserted |
Explicitly Disabled |
Port State |
Normal |
Port Location ON |
|---|---|---|---|---|
Yes |
No |
Up |
Green |
Blinking green |
Yes |
No |
Down; loss of signal (LOS) detected |
Off |
Blinking green |
Yes |
No |
Down; transceiver hardware failure |
Red |
Blinking red |
Yes |
No |
Down; any other fault other than LOS and transceiver hardware failure |
Amber |
Blinking amber |
ANY |
Yes |
Port disabled by CLI |
Amber |
Blinking amber |
No |
No |
Anything except disabled port; however, transceiver not present |
Off |
Blinking green |
MPC and MIC Lane LED Scheme Overview
LEDs on the interface cards display the status of the ports. On some MICs and MPC that have multiple ports and supports multiple port speed, it is not feasible to have an individual LED display for each port on an interface card. Hence, a shared LED display is introduced—the lane LEDs.
The MX10003 MPC includes this new LED lane display. The Multi-Rate 12xQFSP28 MIC and the fixed-port PIC (6xQFSPP) have separate lane LEDs.
The lane LEDs of the MIC are located on the MIC itself, whereas the lane LEDs of the PIC are located on the MPC.
The following interface cards support lane LEDs:
You can select a port operating in a breakout mode for an individual
lane display, either periodically or when the request chassis
port-led command is executed. Similar to the port status LEDs,
the lane LED supports 4 states defined by the color or the LED status—OFF,
GREEN, AMBER, and RED.
Figure 1 illustrates the port LED and lane LED displays on the MPC.
1 — Port LEDs | 2 — Lane display LEDs |
Figure 2 illustrates the port LED and lane LED displays for the MPC.
1 — Lane display LEDs | 2 — Port LEDs |
Figure 3 illustrates the port LED and lane LED displays for the MIC.
1 — Lane display LEDs | 2 — Port LEDs |
The following port LED display modes are defined:
Normal—The port status LED represents port state or a breakout port state. By default, the port status display mode is Normal.
Lane display—An array of lane status LEDs displays the status of each individual lane for the selected port. The lane display is ON when the software cycles through ports for lane status display. One port is selected at a time, and the display mode for that particular port switches to lane display mode. The other ports remain in normal display mode.
Port location—The port location mode is ON when a remote operator initiates a port location command for a port or a group of ports. The
request chassis port-ledcommand temporarily overrides periodic software port selection for the lane display; all ports on an interface card that are not selected for port location switch to Normal mode, and selected ports switch to port location mode. If only one port is selected for port location, then the corresponding lane LEDs are applicable. However, if the selected port is in breakout mode, then all lane LEDs are applicable. If not in breakout mode, only lane 0 LED displays the port status. If more than one port is selected for port location, then the lane LEDs are disabled.
The following factors trigger a change in the port LED color:
Change in the port state. For example, loss of signal (LOS) to no LOS, remote fault, or local fault
Pluggable insertion or removal
Change in configuration
Activation or deactivation of port location feature
Selection of breakout port for lane display
Ports with all individual links in Up state are skipped and are not considered for lane display, thereby reducing the time needed to cycle through all the ports.
Table 13 summarizes the state and color rules for the port LEDs. These rules help in determining the port LED color. When port location mode is activated, the port LED state or color can be determined from the Port Location ON column. If the breakout port is selected for the lane status display, then port LED state or color can be determined from the Lane Display column.
Pluggable Inserted |
Breakout Configuration State |
Explicitly Disabled |
Port State |
Normal |
Port Location ON |
Lane Display |
|---|---|---|---|---|---|---|
Yes |
No breakout |
No |
Up |
Green |
Blinking green |
- |
Yes |
No breakout |
No |
Down; loss of signal (LOS) detected |
Off |
Blinking green |
- |
Yes |
No breakout |
No |
Down; transceiver hardware failure |
Red |
Blinking red |
- |
Yes |
No breakout |
No |
Down; any other fault other than LOS and transceiver hardware failure |
Amber |
Blinking amber |
- |
ANY |
No breakout |
Yes |
Port disabled by CLI |
Amber |
Blinking amber |
- |
No |
Any |
No |
Anything except disabled port; however, transceiver not present |
Off |
Blinking green |
- |
Yes |
Breakout |
No |
All breakout ports are UP |
Green |
Blinking green |
Blinking green |
Yes |
Breakout |
No |
All breakout ports are down with LOS |
Off |
Blinking green |
Blinking green |
Yes |
Breakout |
No |
Hardware failure; transceiver initialization error at the port level (not individual lane) |
Red |
Blinking red |
Blinking red |
Yes |
Breakout |
Any |
In all other cases the port LED color is amber |
Amber |
Blinking amber |
Blinking amber |
The following factors trigger a change in the lane LED color:
A breakout port is selected for a lane display.
Port location mode is activated for a port on a given interface card.
Table 14 summarizes the state and color rules for the lane LEDs.
Pluggable Inserted |
Breakout Configuration State |
Explicitly Disabled |
Port State |
Order |
LED Color |
|---|---|---|---|---|---|
Yes |
Breakout |
No |
Up |
1 |
Green |
Yes |
Breakout |
No |
Down; loss of signal (LOS) detected |
2 |
Off |
Yes |
Breakout |
No |
Down; transceiver hardware failure |
3 |
Red |
Yes |
Breakout |
No |
Down; fault other than LOS and transceiver hardware failure |
4 |
Amber |
Yes |
Breakout |
Yes |
Breakout port is disabled in the CLI |
5 |
Amber |
Configuring Slow Packet Forwarding Engine Alarm
On an M Series, an MX Series, a T Series, or an SRX Series Firewall, the Packet Forwarding Engine might not send a resource acknowledgment message to the Routing Engine within a predetermined time of 360 seconds. This delay in receiving resource acknowledgment could be due to a slow or stuck Packet Forwarding Engine on the M Series, MX Series, T Series, or SRX Series Firewall, or on one of the LCCs connected to a TX Matrix, TX Matrix Plus, or TX Matrix Plus router with 3D SIBs.
Starting with Junos OS Release 13.2R1 (also applicable in Junos
OS Releases 12.1R6, 12.2R5, 12.3R3, 13.1R2 and later), to display
the issue as an alarm in the show chassis alarms command
output and to append the alarm to the system log messages file, you
must enable the slow Packet Forwarding Engine alarm on the router.
The following sections provide more information about the slow Packet Forwarding Engine alarm:
- Enabling Slow Packet Forwarding Engine Alarm
- Disabling Slow Packet Forwarding Engine Alarm
- Verifying That the Alarm Output and System Log Messages are Updated
Enabling Slow Packet Forwarding Engine Alarm
To enable the slow Packet Forwarding Engine alarm, perform the following steps:
By default, the slow Packet Forwarding Engine alarm is disabled.
Disabling Slow Packet Forwarding Engine Alarm
To disable the slow Packet Forwarding Engine alarm, perform the following steps:
Verifying That the Alarm Output and System Log Messages are Updated
Purpose
To verify that the output of the show chassis alarms operational mode command and the system log messages file are updated
with the slow Packet Forwarding Engine alarm when:
The
slow-pfe-alarmstatement is enabled in the[edit chassis]hierarchy.The Packet Forwarding Engine resource acknowledgment is not received by the Routing Engine within a predetermined time of 360 seconds.
Action
To check the output on an M Series, MX Series, T Series, or an SRX Series Firewall:
-
Verify that the alarm is displayed in the output of the
show chassis alarmsoperational mode command.show chassis alarms
user@host> show chassis alarms 1 alarms currently active Alarm time Class Description 2013-02-05 01:12:33 PST Minor Potential slow peers are: XDPC2
For field descriptions, see show chassis alarms.
Verify that the alarm is appended to the system log messages file.
/var/log/messages – ... Alarm set: RE color=YELLOW, class=CHASSIS, reason=Potential slow peers are: XDPC2 ... Minor alarm set, Potential slow peers are: XDPC2
To check the output on a TX Matrix, TX Matrix Plus, or a TX Matrix Plus with 3D SIBs router:
-
Verify that the alarm is displayed in the output of the
show chassis alarmsoperational mode command.show chassis alarms
user@scc> show chassis alarms scc-re0: -------------------------------------------------------------------------- 9 alarms currently active Alarm time Class Description 2013-02-06 00:45:46 PST Minor Potential slow peers are: LCC1 LCC0 ... lcc0-re0: -------------------------------------------------------------------------- 4 alarms currently active Alarm time Class Description 2013-02-06 00:44:51 PST Minor Potential slow peers are: GFPC4 GFPC3 ... lcc1-re0: -------------------------------------------------------------------------- 4 alarms currently active Alarm time Class Description 2013-02-06 00:45:44 PST Minor Potential slow peers are: GFPC10 ... lcc2-re0: -------------------------------------------------------------------------- No alarms currently active lcc3-re0: -------------------------------------------------------------------------- No alarms currently active
For field descriptions, see show chassis alarms.
Verify that the alarm is appended to the system log messages file.
... Alarm set: RE color=YELLOW, class=CHASSIS, reason=Potential slow peers are: LCC0 LCC1 ... Minor alarm set, Potential slow peers are: LCC0 ... Alarm set: RE color=YELLOW, class=CHASSIS, reason=Potential slow peers are: GFPC4 GFPC3 ... Minor alarm set, Potential slow peers are: GFPC4 GFPC3 ... Alarm set: RE color=YELLOW, class=CHASSIS, reason=Potential slow peers are: GFPC10 ... Minor alarm set, Potential slow peers are: GFPC10
Meaning
The output of show chassis alarms operational
mode command and the system log messages file are updated as expected
when the slow Packet Forwarding Engine alarm is enabled and when the
Packet Forwarding Engine resource acknowledgment is not received by
the Routing engine within a predetermined time of 360 seconds.
User-Defined Alarm Relay Overview
The ACX Series router alarm contact port—labeled ALARM on the front panel—allows you to manage sensors and external devices connected to the router in remote unstaffed facilities.
Alarm contact port is not applicable on ACX5048 and ACX5096 routers.
Alarm Contact Port
The ACX Series router alarm contact port is a 15-pin D-type dry contact connector for alarms. The alarm contact port is used to generate LED alarms on the router and to turn external devices on or off. You can connect up to four input alarms and two output alarms. The alarm setting is open or closed.
Alarm Input
Alarm input provides dry contacts to connect to security sensors such as door or window monitors. The alarm input—open or closed—is sensed and reported to the management software. You can configure up to four alarm input relay ports (0 through 3) to operate as normally open or normally closed, and to trigger a red alarm condition or a yellow alarm condition or to ignore alarm conditions.
Alarm Output
Alarm output provides dry contacts to connect to external equipment, such as an audible or visual alarm that switches on or off–for example, a bell or a light. The four alarm output relay ports—0 through 3—are set up as follows:
Ports 0 and 1—These ports can be configured to trigger an alarm when the system temperature goes to the red alarm status and when an alarm input port is triggered.
Ports 2 and 3—These ports are not configured. They are used to indicate system major and minor alarms and are normally open. When a condition triggers an alarm, an alarm message is displayed.
To view the alarm input and output relay information, issue
the show chassis craft-interface command from the Junos
OS command line interface.
See Also
Configuring Chassis Alarm Relays
On ACX Series routers, you can configure alarm relays that can trigger alarms and turn external devices on or off. For example, if the router heats up to more than the critical temperature, the output port is activated and a device connected to the output port—such as a fan—is turned on.
To configure conditions that trigger alarms, include
the relay statement with the input and output options at the [edit chassis alarm] hierarchy
level.
[edit chassis alarm]
relay
input {
port port-number {
mode (close | open);
trigger (ignore | red | yellow);
}
}
output{
port port-number {
input-relay input-relay;
mode (close | open);
temperature;
}
}
The following output shows an example configuration of a chassis relay alarm:
[edit chassis alarm]
user@host# show
relay {
input {
port 1 {
mode close;
trigger red;
}
}
output {
port 0 {
temperature;
}
}
}
Configuring Chassis Alarm Input
The ACX Series router alarm contact port—labeled ALARM on the front panel—allows you to manage sensors and external devices connected to the router in remote unstaffed facilities. You can configure up to four alarm input ports (0 through 3) to operate as normally open or normally closed, and to trigger a red alarm condition or a yellow alarm condition or to ignore alarm conditions.
To configure an input alarm:
To view the alarm input relay information, issue the show
chassis alarms or show chassis craft-interface commands
from the Junos OS command line interface.
Configuring Chassis Alarm Output
The ACX Series router alarm contact port—labeled ALARM on the front panel—allows you to manage sensors and external devices connected to the router in remote unstaffed facilities. You can configure up to two alarm output relay ports (0 and 1) to operate as normally open or normally closed, and to trigger an alarm when the system temperature goes to the red alarm status and when an alarm input port is triggered.
Ports 2 and 3 are not configured. They are used to indicate system major and minor alarms and are normally open. When a condition triggers an alarm, an alarm message is displayed, and the corresponding LED turns on.
To configure an output alarm:
To view the alarm output relay information, issue the show
chassis alarms or show chassis craft-interface command
from the Junos OS command line interface.
Configuring Chassis Alarm Input and Output (ACX710 Routers)
The alarm interface port, an RJ45 port on the front panel of the ACX710 router, provides user-configurable input and output signals. You can configure the alarm input to receive alarm inputs from the external devices (such as sensors) connected to the router through the alarm port. You can configure the alarm output to relay the alarms in the router to external alarm devices (for example, bells and bulbs) connected to the router through the alarm port. You can configure up to three alarm inputs and one alarm output.
The router supports configuration of up to three alarm inputs and one alarm output, using the command alarm-port at the [edit chassis] hierarchy. You can configure the alarm input signals independent of the alarm output signal, and vice versa.
Pin Number of the Connector on the Device |
Signal Definition |
IN/OUT |
CLI Mapping |
|---|---|---|---|
1 |
ALARM_IN0_Sig |
IN |
port 1 |
2 |
ALARM_IN0_Return |
IN |
port 1 |
3 |
ALARM_IN1_Sig |
IN |
port 2 |
4 |
ALARM_IN2_Sig |
IN |
port 3 |
5 |
ALARM_IN1_Return |
IN |
port 2 |
6 |
ALARM_IN2_Return |
IN |
port 3 |
7 |
ALARM_OUT_Sig |
OUT |
port 1 |
8 |
ALARM_OUT_Return |
OUT |
port 1 |
To configure an alarm input:
To view the input alarms, by using the show chassis alarms command.
To configure an alarm output:
Specify the output port number by using the command
set chassis alarm-port output port port-number. The router supports only one output port (port number: 1).user@host# set chassis alarm-port output port 1
Set the administrative state of the alarm output as enabled.
user@host# set chassis alarm-port output port 1 admin-state enabled
Provide a description to the alarm input.
user@host# set chassis alarm-port input port 1 description alarm-output-description
Commit the configuration with the
commitcommand.
For more information, see alarm-port.
You can use the command show chassis craft-interface to view the alarm port configuration details.
user@router> show chassis craft-interface
System LED's on front panel:
-----------------------------
Fault LED : On
Status LED : Off
Operational LED : On
Fan LED : Off
Alarm-port on front panel:
-----------------------------
Input port : 1
Active signal : LOW
Description :
Admin state : DISABLED
Severity : CRITICAL
Input port : 2
Active signal : LOW
Description :
Admin state : DISABLED
Severity : CRITICAL
Input port : 3
Active signal : LOW
Description :
Admin state : DISABLED
Severity : CRITICAL
Output port : 1
Description :
Admin state : DISABLED