Step 1: Display Craft Interface Alarms

A craft interface failure generates a red or yellow alarm, or both. For information about conditions that trigger craft interface alarms, see Gather Component Alarm Information.

Action

To display a craft interface alarm, use the following CLI 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

What It Means

(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.