When you check the router craft interface, the component LEDs,
and the environmental and operational information, you are either
physically inspecting the components or obtaining output about their
status from commands you issue from the command-line interface (CLI).
To check router component status, follow these steps:
To confirm that the craft interface is functioning
properly by checking the alarm indicator status or by checking the
craft interface physically.
Action
To check the craft interface information for router status, do one
of the following:
Use the following CLI command:
user@host>
show chassis craft-interface
The command output displays the router
alarm indicator status, the LCD display information (router name,
router uptime, and status message that rotate at 2-second intervals),
and the major component LED status.
Physically look at the router craft interface. Table 22 shows the component characteristics of
the craft interface for each M-series router and T-series platform.
Table 22: Craft
Interface Components for the M-series Routers and T-series Platforms
Component
M5 and M10
M20
M40
M40e
M160
T320
T640
Alarm LEDs
X
X
X
X
X
X
X
Lamp test button
X
X
X
Alarm cutoff button
X
X
X
X
Alarm relay contacts
X
X
Link and activity status lights
X
X
LCD display and navigation buttons
X
X
X
X
X
Routing Engine ports
X
X
X
Routing Engine LEDs
X
X
X
Host module LEDs
X
Host subsystem LEDs
X
X
Physical Interface Card (PIC) online and offline buttons
X
Flexible PIC Concentrator (FPC) LEDs
X
X
X
X
X
X
FPC offline buttons
X
X
X
X
FPC online buttons
X
X
Switch Interface Board (SIB) LEDs
X
X
Check the Component LEDs
Purpose
To confirm that the component LEDs are functioning
properly by checking either that the output messages, physically checking
the craft interface or examining the LEDs on the component faceplate.
Action
To
check the component LED status, do one of the following:
Use the following CLI command:
user@host>
show chassis craft-interface
The output shows the messages that are
currently displayed on the craft interface (for routers that have
a display on the craft interface).
For examples of sample output, see the JUNOS System Basics and Services Command Reference.
Physically look at the craft interface. You see the following
component LEDs: Routing Engine, FPCs, PICs, host module (for M40e
and M160 routers), and host subsystem and SIB (for T-series platforms).
Look at the LEDs on the component faceplate. Table 23 describes where the LEDs are located on
the router or platform.
Table 23: Component
LED Location on the Router or Platform
Component
LED Location on the Router
Router or Platform
CB
On the Control Board (CB) faceplate.
T320 router and T640 routing node
FPC
On the FPC faceplate at the front of the router.
M20, M40, M40e, and M160 routers
Host module
On the craft interface. Remove the component cover.
M40e and M160 routers
MCS
On the Miscellaneous Control System (MCS) faceplate at
the rear of the router. Remove the component cover.
M40e and M160 routers
PIC
On the craft interface.
On the PIC faceplate at the front of the router.
M5 and M10 routers All other routers
PCG
On the PFE clock generator (PCG) faceplate at the rear
of the router. Remove the component cover.
M40e and M160 routers
Power supply
On the power supply faceplate at the bottom rear of the
router.
All routers
Routing Engine
On the rear Routing Engine panel.
On the craft interface.
M20 router M20, M40, M40e, and M160 routers
SCB
On the System Control Board (SCB) faceplate at the front
of the router, vertical in the middle of the FPC card cage.
M40 router
SCG
On the SONET Clock Generator (SCG) faceplate.
T320 router and T640 routing node
SFM
On the Switching and Forwarding Module (SFM) faceplate
at the rear of the router. Remove the component cover.
M40e and M160 routers
SIB
On the SIB faceplate.
T320 router and T640 routing node
SSB
On the System and Switch Board (SSB) faceplate at the
top front of the router.
M20 router
Display Detailed Component Environmental Information
Purpose
To check the component environmental information for
the uptime to determine if it is functioning properly.
Action
To display detailed environmental status information
about a component, use the following CLI command:
user@host> show chassis environment component-name
The command output displays the temperature of the
air passing by the component, in degrees Centigrade. It also displays
the total percentage of CPU, interrupt, heap space, and buffer space
being used by the component processor, including the total DRAM available
to the component processor. The command output displays the time when
the component started running and how long the component has been
running. A short uptime can indicate a problem with the component.
For examples of sample output, see the JUNOS System
Basics and Services Command Reference.
Table 24 lists the operational
mode CLI commands that display more detailed information for each
router and platform component.
Table 24: CLI Commands
for Detailed Component Environment Status
Component
Operational Mode CLI Command
Router or Platform
CB
show chassis environment cb
T320 and T640 platforms
Forwarding Engine Board (FEB)
show chassis feb
M5 and M10 routers
FPC
show chassis environment fpc
M40e and M160 routers, and T-series platforms
Front panel module (FPM) or craft interface
show chassis environment fpm
M40e and M160 routers, and T-series platforms
MCS
show chassis environment mcs
M40e and M160 routers
PCG
show chassis environment pcg
M40e and M160 routers
Power Entry Module (PEM) or power supply
show chassis environment pem
M40e and M160 routers, and T-series platforms
Routing Engine
show chassis environment routing-engine
M40e and M160 routers, and T-series platforms
SONET Clock Generator (SCG)
show chassis environment scg
T320 and T640 platforms
SFM
show chassis environment sfm
M40e and M160 routers
SIG
show chassis environment sib
T320 and T640 platforms
Display Detailed Operational Information About Components
Purpose
To check the component environmental information for
the uptime to determine if it is functioning properly.
Action
To display detailed operational information about a
component, use the following CLI command:
user@host> show chassis component-name
The command output displays the temperature of the
air passing by the component, in degrees Centigrade and Fahrenheit.
It displays the total percentage of CPU, interrupt, heap space, and
buffer space being used by the component processor, including the
total DRAM available to the component processor. The command output
displays the time when the component started running and how long
the component has been running. A short uptime can indicate a problem
with the component.
For examples of sample output, see the JUNOS System
Basics and Services Command Reference.
Table 25 lists the components
for which you can display more detailed operational status information.
Table 25: CLI Commands
for Detailed Operational Status of Components