3troubleshootingjunos

•ReproductionItem: Shows information for the chassis component about the

Displaying Chassis Inv ntory

The output of the show chassis hardware command displays the hardware

components install in the platform. This command is useful when troubleshooting

or upgrading your device. The (edited) sample shown on the slide is from a T640

outer with redundant Routing Engines (RE).

The following are the show chassis hardware command output fields:

backplane, the power supplies, the maxicab (the connection between the

Routing Engine and the backplane), the System Control Board (SCB), and

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each of the FPCs and their PICs.

Version: Displays the revision level of the chassis component.

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Part number: Displays the part number of the chassis component.

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Serial number: Displays the serial number of the chassis component.

The serial number of the backplane is also the serial number of the

router chassis.

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Description: For the power supplies, it displays the type of supply; for

the PICs, it displays the type of PIC.

Reproduction

user@host> show chassis hardware clei-models

Hardware inventory:

Part number CLEI code

FRU model number

Item

Version

Midplane

REV 07

710-009120

CHAS-BP-M320-S

FPM Display

REV 05

710-009351

CRAFT-M320-S

CIP

REV 05

710-005926

CIP-M320-S

PEM 0

Rev 05

740-009149

PWR-M-AC-S

PEM 1

Rev 05

740-009149

PWR-M-AC-S

PEM 2

Rev 05

740-009149

PWR-M-AC-S

PEM 3

Rev 05

740-009149

PWR-M-AC-S

Routing Engine 0 REV 07

740-014082

RE-A-2000-4096-S

Routing Engine 1 REV 07

740-014082

RE-A-2000-4096-S

. . .

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Reproduction

Listing Alarm Conditions

The show chassis alarms command lists all of the alarm conditions that

currently exist in the vice. You can disable some alarms; however, you cannot

disable safety-related and chassis component alarms.

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P essing the alarm cutoff (ACO) button, located on the Craft Interface, manually

silences the alarm to an external device connected to the alarm relay, but it does not

em ve the alarm messages from the display (if present on the device) nor does it

extinguish the alarm LEDs. In addition, new alarms that occur after silencing an

external device reactivate the external device.

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The llowing are the show chassis alarms output fields:

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Alarm time: Displays the date and time of the alarm;

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Class: Displays the severity class for this alarm (it can be minor or

major); and

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Description: Displays information about the alarm.

OK,ReproductionTesting (during initial power-on), Failed, or Absent. For

the

Displaying Environm ntal Information

The show chassis

nvironm nt command displays environmental information

about the device chassis, including the temperature, and information about the fans,

power supplies, and

outing Engine. The truncated example is from a T640 platform.

The following a e the output fields:

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Power: Displays information about each power supply. The status can be

M120, M320, and T Series platforms, information displays about the

PEM.

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Temp: Displays the temperature of air flowing through the chassis.

for• Fans: Displays information about the fans. The status can be OK,

Testing (during initial power-on), Failed, or Absent. Measurement

indicates whether the fans are spinning at normal or high speed.

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Other: Depending upon the platform, various other fields might be

present. For example, for T Series platforms, the display includes

information on the SONET Clock Generator (SCG), Control Board (CB),

SIBs, the Switch Processor Mezzanine Board (SPMB) and the Connector

Interface Panel (CIP). The sample on the slide does not show these fields.

Reproduction

CPU Temp rature

In addition to the ambi nt t mperature surrounding the system components, you can

see the actual CPU mp rature of the Routing Engine.

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Reproduction

Displaying System Control Board Status

The show chassis (f b | scb | | cfeb | sfm slot | ssb slot )

command displays information about the system controller boards—either Forwarding

Engine Board (FEB), Compact Forwarding Engine Board (CFEB), SCB, SFM, or System

and Switch Boa (SSB). The following are the output fields:

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Intake temperature: Displays the temperature of the air passing by

the controller in both Celsius and Fahrenheit;

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Exhaust temperature: Displays the temperature of the air flowing

past the exhausts;

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CPU utilization: Displays the total percentage of the CPU used by

forthe controller’s processor;

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•

Interrupt utilization: Out of the total CPU percentage in use by

the controller’s processor, displays the percentage in use for interrupts;

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Heap utilization: Displays the percentage of heap space in use by

the controller’s processor;

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Buffer utilization: Displays the percentage of buffer space in use

by the controller’s processor;

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DRAM: Displays the total DRAM available to the controller’s processor;

Engine (PFE)-generated ICMP error messages or traffic that requires directi

to the

host RE for processing. Examples of exception traffic include Internet C tr

l Message

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