Monitoring FPCs

You monitor and maintain Flexible PIC Concentrators (FPCs) to connect Physical Interface Cards (PICs) to the rest of the router so that incoming packets are forwarded across the midplane to the appropriate destination ports. (See Table 44.)

Table 44: Checklist for Monitoring FPCs

Monitor FPC Tasks	Command or Action
Understanding FPCs FPC Numbering
Checking the FPC Status
Check FPC Status and Utilization	show chassis fpc
Check FPC Status and Uptime	show chassis fpc detail fpc-slot
(M40e, M160, M320, and T320 routers and T640 routing node only) Check FPC Status and Temperature	show chassis environment fpc fpc-slot
Check the FPC LED States	show chassis craft-interface Or, physically check the FPC LEDs on the Front Panel Module (FPM).
Checking for FPC Alarms
Display the Current FPC Alarms	show chassis alarms
Display FPC Error Messages in the System Log File	show log messages | match "fpc| kernel | tnp"
Display FPC Error Messages in the Chassis Daemon Log File	show log chassisd | match fpc
Verifying FPC Failure
Document Events Prior to the FPC Failure	Document a software upgrade, hardware upgrade, or reset.
Check the FPC Installation	Check that the FPC is seated in the slot. Try to bring the FPC online.
Check the FPC Fuses	The fuses for the and FPCs are located in the rear of the midplane behind the power supply in slot PEM0.
Take the FPC Offline	Press the offline button for approximately 3 seconds.
Perform an FPC Swap Test	Replace the FPC with one that you know works.
Display the FPC Software Version Information	show version brief
Display the FPC Hardware Information	show chassis hardware
Locate the FPC Serial Number ID Label	M20 Internet router—With the FPC in horizontal position, look on the top back right of the FPC. M40 Internet router—With the FPC in vertical position, look on the back left side of the FPC. M40e and M160 routers—With the FPC in vertical position, look on the center right side of the FPC. For M320 routers—On an FPC3, the serial number ID label is located on the center of the right side. On an FPC2, the serial number label is located on the top PIC slot. For T320 routers—On an FPC3, the serial number ID label is located on the center of the right side. On an FPC1 and FPC2, the serial number ID label is located near the top PIC slot. For T640 routing nodes—On an FPC3, the serial number label is located on the center of the right side. On an FPC2, the serial number label is located near the top PIC slot.
Replacing an FPC	See Return the Failed Component. Follow the procedure in the appropriate router hardware guide.