Juniper Networks M10, M5 manual Maintain Packet Forwarding Engine Components, Maintain the FEB

Maintain Packet Forwarding Engine Components

For further description of the output from the command, see the JUNOS Internet Software Operational Mode Command Reference: Protocols, Class of Service, Chassis, and Management.

Maintain Packet Forwarding Engine Components

For instructions on maintaining Packet Forwarding Engine components, see the following sections:

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Maintain the FEB on page 76

Maintain PICs and PIC Cables on page 76

Maintain the FEB

The Forwarding Engine Board (FEB) installs into the rear of the chassis, as shown in Figure 3. To maintain the FEB, perform the following procedures on a regular basis:

•Check the system logging messages on the management console. The FEB notifies the Routing Engine of any errors it detects during normal operation.

•Issue the CLI show chassis feb command to check the status of the FEB.

user@host> show chassis feb

FEB status:

Temperature	32	degrees	C / 89 degrees F
CPU utilization	3	percent
Interrupt utilization	0	percent
Heap utilization	18	percent
Buffer utilization	44	percent
Total CPU DRAM	64	MB
Internet Processor II		Version	1, Foundry IBM, Part number 9
Start time:		2003-05-01 15:08:59 PDT
Uptime:		3 days,	9 hours, 3 minutes, 13 seconds

For a description of the output from the command, see the JUNOS Internet Software

Operational Mode Command Reference: Protocols, Class of Service, Chassis, and

Management.

Maintain PICs and PIC Cables

To maintain PICs and PIC cables, follow these guidelines:

•Check the LEDs on PIC faceplates. Most PIC faceplates have an LED labeled STATUS. Some PICs have additional LEDs, often one per port. The meaning of the LED states differs for various PICs. For more information, see the M5 and M10 Internet Routers PIC Guide. If the FPC that houses the PIC detects a PIC failure, the FPC generates an alarm message to be sent to the Routing Engine.

76M5 and M10 Internet Routers Hardware Guide