Juniper Networks M160 manual Troubleshooting FPCs

M160 Internet Router Hardware Guide

Troubleshooting FPCs

As soon as an FPC is seated in an operating router, the Routing Engine downloads the FPC software to it. The FPC then runs diagnostics and enables the PICs housed on it. During this time, the green LED labeled OK above the FPC on the craft interface blinks. When the FPC is online and functioning normally, the OK LED lights steadily.

To troubleshoot the FPCs, follow these guidelines:

If the red LED labeled FAIL above the FPC on the craft interface lights steadily, check the LCD on the craft interface for a message about the status of the FPC and the PICs housed in it.

Make sure the FPC is properly seated in the midplane—use a Phillips screwdriver to check that the screws at the top and bottom of the card carrier are tight.

To check the status of an FPC, issue the following CLI command:

user@host> show chassis fpc
		Temp	CPU Utilization (%)		Memory	Utilization (%)
Slot	State	(C)	Total	Interrupt	DRAM (MB) Heap		Buffer
0	Online	37	4	0	32	1	39
1	Online	39	4	0	32	1	39
2	Empty
3	Online	34	1	0	32	1	40
4	Empty
5	Online	35	4	0	32	2	40
6	Online	36	4	0	32	1	39
7	Empty

For more detailed output, add the detail option. The following example also specifies a slot number (0), which is optional:

user@host> show chassis fpc detail 0

Slot 0 information:
State		Online
Temperature	37	degrees	C / 98 degrees F
Total CPU DRAM	32	MB
Total SRAM	4	MB
Total SDRAM	256	MB
I/O Manager ASIC information		Version	2.0, Foundry	IBM, Part number 0
I/O Manager ASIC information		Version	2.0, Foundry	IBM, Part number 0
I/O Manager ASIC information		Version	2.0, Foundry	IBM, Part number 0
I/O Manager ASIC information		Version	2.0, Foundry	IBM, Part number 0
Start time:		2003-04-29 16:11:55 PDT
Uptime:		5 days,	21 hours, 32	minutes, 41 seconds

For further description of the output from the commands, see the JUNOS

Internet Software Operational Mode Command Reference: Protocols, Class of

Service, Chassis, and Management.

214 Troubleshooting Packet Forwarding Engine Components