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Juniper M Series - Verifying Craft Interface Failure

Juniper M Series
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Verifying Craft Interface Failure
When the craft interface fails, you might not see any lights on the craft interface panel
and the LCD display will be blank. In addition, the buttons on the panel might not work
as indicated.
On M5 and M10 routers, you can use the lamp test button to ensure that the alarm LED
lights are working properly.
To verify craft interface failure:
1.
Displaying Craft Interface Alarms on page 259
2.
Display Craft Interface Error Messages in the System Log File on page 260
3.
Displaying Craft Interface Messages in the Chassis Daemon Log File on page 260
4.
Displaying Craft Interface Hardware Information on page 261
Displaying Craft Interface Alarms
Purpose A craft interface failure generates a red or yellow alarm, or both. For information about
conditions that trigger craft interface alarms.
Action To display a craft interface alarm, use the following command:
user@host> show chassis alarms
Sample Output
For an M20 router:
user@host> show chassis alarms
1 alarms currently active
Alarm time Class Description
2002-05-09 00:00:54 UTC Major fxp0: ethernet link down
For M40e and M160 routers:
user@host> show chassis alarms
2 alarms currently active
Alarm time Class Description
2002-06-07 18:20:00 UTC Minor Craft Failure
2002-06-07 18:20:00 UTC Minor Front Top Fan Absent
Meaning (M20 router) If the craft interface fails or is removed, you see an alarm. For example, if
you remove the craft interface, a major management Ethernet interface down alarm is
generated. The Ethernet link to the router is down. The Ethernet management interface,
or fpx0, provides an out-of-band method for connecting to the router. You can connect
to the management interface over the network using utilities such as secure shell (SSH)
and telnet. The Simple Network Management Protocol (SNMP) can use the management
interface to gather statistics from the router.
(M40e and M160 routers) The craft interface is connected to the front top fan assembly.
If the craft interface fails or is removed, a craft interface failure alarm and a front top fan
absence alarm are generated.
259Copyright © 2012, Juniper Networks, Inc.
Chapter 9: Monitoring the Craft Interface

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