Troubleshooting the MX960 FPCs
Problem
Description
The FPCs are not functioning normally.
Solution
Monitor the green LED labeled OK above the FPC on the craft interface as soon as an FPC is seated in an operating router.
The Routing Engine downloads the FPC software to it under two conditions: the FPC is present when the Routing Engine boots Junos OS, and the FPC is installed and requested online through the CLI or push button on the front panel. The FPC then runs diagnostics, during which the OK LED blinks. When the FPC is online and functioning normally, the OK LED lights green steadily.
Make sure the FPC is properly seated in the midplane. Check that each ejector handle has been turned clockwise and is tight.
Check the OK/FAIL LED on the FPC and OK and FAIL FPC LEDs on the craft interface. When the FPC is online and functioning normally, the OK LED lights green steadily.
Issue the show chassis fpc command to check the status of installed FPCs. As shown in the sample output, the value Online in the column labeled State indicates that the FPC is functioning normally:
user@host> show chassis fpc Temp CPU Utilization (%) Memory Utilization (%) Slot State (C) Total Interrupt DRAM (MB) Heap Buffer 0 Online 24 3 0 1024 13 21 1 Empty 2 Online 41 9 0 1024 15 57 3 Online 43 5 0 1024 16 57 4 Online 43 11 0 1024 16 57 5 Online 41 9 0 1024 15 57 6 Online 43 5 0 1024 16 57 7 Empty 8 Empty 9 Empty 10 Online 24 3 0 1024 13 21 11 EmptyNote:The show chassis fpc command displays the status of the FPCs.
For more detailed output, add the detail option. The following example does not specify a slot number, which is optional:
user@host> show chassis fpc detail Slot 0 information: State Online Temperature 24 degrees C / 75 degrees F Total CPU DRAM 1024 MB Total RLDRAM 128 MB Total DDR DRAM 2048 MB Start time: 2008-12-11 16:53:24 PST Uptime: 15 hours, 2 minutes, 47 seconds Slot 2 information: State Online Temperature 29 degrees C / 84 degrees F Total CPU DRAM 1024 MB Total RLDRAM 256 MB Total DDR DRAM 4096 MB Start time: 2008-12-11 16:53:18 PST Uptime: 15 hours, 2 minutes, 53 seconds Slot 3 information: State Online Temperature 29 degrees C / 84 degrees F Total CPU DRAM 1024 MB Total RLDRAM 256 MB Total DDR DRAM 4096 MB Start time: 2008-12-11 16:53:18 PST Uptime: 15 hours, 2 minutes, 53 seconds Slot 4 information: State Online Temperature 29 degrees C / 84 degrees F Total CPU DRAM 1024 MB Total RLDRAM 256 MB Total DDR DRAM 4096 MB Start time: 2008-12-11 16:53:18 PST Uptime: 15 hours, 2 minutes, 53 seconds Slot 5 information: State Online Temperature 29 degrees C / 84 degrees F Total CPU DRAM 1024 MB Total RLDRAM 256 MB Total DDR DRAM 4096 MB Start time: 2008-12-11 16:53:22 PST Uptime: 15 hours, 2 minutes, 49 seconds Slot 6 information: State Online Temperature 29 degrees C / 84 degrees F Total CPU DRAM 1024 MB Total RLDRAM 256 MB Total DDR DRAM 4096 MB Start time: 2008-12-11 16:53:18 PST Uptime: 15 hours, 2 minutes, 53 seconds Slot 10 information: State Online Temperature 24 degrees C / 75 degrees F Total CPU DRAM 1024 MB Total RLDRAM 128 MB Total DDR DRAM 2048 MB Start time: 2008-12-11 16:53:24 PST Uptime: 15 hours, 2 minutes, 47 seconds
For further description of the output from the commands, see the Junos OS Administration Library for Routing Devices.