Chassis Monitoring and Troubleshooting

From the command-line interface (CLI), you can display information about the chassis components using the commands in the show chassis hierarchy. These commands get their information from the chassis software process, which runs when the router is up and running. If the SCB, SSB, SFM, or FEB is not running, no information about chassis components is available through the CLI.

Table 29 summarizes the CLI commands you can use to monitor the router chassis. In the table, the commands are grouped by functionality. In the remainder of this chapter, they are explained alphabetically.

Table 29: Commands for Monitoring the Chassis

Task or Information to Monitor	CLI Command
Chassis alarm status.	show chassis alarms on page 339
Clear the chassis alarms.	clear chassis craft-interface display on page 334
Clear the chassis craft-interface display	clear chassis craft-interface display on page 334
Class-of-service configuration.	show chassis cos on page 340
Chassis clock-source configuration.	request chassis pcg slot on page 334
Information currently on craft display.	show chassis craft-interface on page 341
Environmental information.	show chassis environment on page 343 show chassis feb on page 353 show chassis environment fpc on page 346 show chassis environment fpm on page 347 show chassis environment mcs on page 348 show chassis environment pcg on page 349 show chassis environment pem on page 350 show chassis environment routing engine on page 351 show chassis environment sfm on page 352
Firmware version.	show chassis firmware on page 354
FPC and PIC status.	show chassis fpc on page 355 request chassis fpc slot on page 334
Hardware inventory.	show chassis hardware on page 357
MAC address.	show chassis mac-addresses on page 361
Routing Engine.	show chassis routing-engine on page 361 request chassis routing-engine master on page 335
FEB, SCB, SFM, or SSB status.	show chassis feb on page 353
	show chassis scb on page 365
	show chassis sfm on page 366 request chassis sfm slot on page 337
	show chassis ssb on page 368 request chassis ssb master switch on page 337
Display a message on the router's craft interface.	set chassis display message on page 338