Chapter 15: Monitoring FPCs
Figure 58 shows the location of the M320 fuses in the rear of the midplane for the
FPC. (The labels shown in the figure do not appear on the actual fuses—the clear cover on every fuse reads BUSS GMT-X—and might not match the labels on the midplane. Ignore the labels on the midplane.)
Figure 58: Component Fuses in the M320 Router Midplane
J416
A B C D
J415
A B C D
J414
A B C D
J412
A B C D
J411 J410
A B C D A B C D
Amber LED
Step 4: Take the FPC Offline
The FPCs are hot-insertable and hot-removable. When you remove an FPC, the router continues to function, although the PIC interfaces installed on the FPC no longer function.
Action To take an FPC offline, press the offline button for approximately 3 seconds, and follow the instructions in the appropriate router hardware guide.
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JUNOS Internet Software Network Operations Guide: Hardware
Step 5: Perform an FPC Swap Test
CAUTION: Before performing a swap test, always check for bent pins in the midplane and check the FPC for stuck pins in the connector. Pins stuck in the component connector can damage other good slots during a swap test.
Action To perform a swap test on an FPC, follow these steps:
1.
Remove the FPC that you suspect has failed from the router chassis.
2.
Inspect the router midplane for bent pins. Inspect the FPC connector for pins that are stuck. If you find a bent or stuck pin, see “Return the Failed
Component” on page 86.
3.
If there are no bent or stuck pins and there is a spare FPC slot in the router, insert the FPC that failed into a spare slot. If the FPC still fails, see “Return the
Failed Component” on page 86. If there is no spare FPC slot, insert an FPC that you know works into the slot where the FPC failed. If the FPC works, the replaced FPC failed. If the FPC does not work, the FPC slot has failed.
Step 6: Display the FPC Software Version Information
Action To display the version of kernel software running on the router, use the following
CLI command: user@host> show version brief
Sample Output user@host> show version brief
Hostname: host
Model: m160
JUNOS Base OS boot [5.5R1.2]
JUNOS Base OS Software Suite [5.5R1.2]
JUNOS Kernel Software Suite [5.5R1.2]
JUNOS Packet Forwarding Engine Support [5.5R1.2]
JUNOS Routing Software Suite [5.5R1.2]
JUNOS Online Documentation [5.5R1.2]
JUNOS Crypto Software Suite [5.5R1.2]
What It Means The command output displays the router hostname, model number, and the version of software running on the router. The kernel software version is important when diagnosing FPC issues. You will need this information when you contact JTAC.
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Step 7: Display the FPC Hardware Information
Action To display the FPC hardware information, use the following CLI command: user@host> show chassis hardware
Sample Output user@host> show chassis hardware
Hardware inventory:
Item Version Part number Serial number Description
[...Output truncated...]
FPC 0 REV 01 710-001292 AE3843
PIC 0 REV 04 750-000617 AE2495 1x OC-48 SONET, SMIR
FPC 1 REV 07 710-000175 AA3408
PIC 0 REV 01 750-001323 AB1244 1x Tunnel
PIC 1 REV 05 750-000613 AA3151 1x OC-12 SONET, SMIR
FPC 3 REV 01 710-000175 AA0048
PIC 0 REV 04 750-000613 aa0343 1x OC-12 SONET, SMIR
PIC 1 REV 05 750-000616 AA1394 1x OC-12 ATM, MM
PIC 2 REV 04 750-000613 AA0377 1x OC-12 SONET, SMIR
PIC 3 REV 04 750-000613 AA0378 1x Tunnel
FPC 5 REV 07 710-000175 AA3475
PIC 0 REV 04 750-000611 AA3506 4x OC-3 SONET, MM
PIC 2 REV 06 750-001072 AA1785 1x G/E, 1000 BASE-SX
FPC 7 REV 07 710-000175 AA3409
PIC 1 REV X1 750-000603 AAO181 4x OC-3 SONET, SMIR
What It Means The command output displays each FPC installed in the router, including the version level, part number, serial number, and description. The output also displays a description of the PICs installed in each FPC. You will need this information when you contact JTAC.
Step 8: Locate the FPC Serial Number ID Label
Action The serial number ID label is small, rectangular, and has the component serial number and bar code on it. To locate the FPC serial number ID label, do one of the following:
!
M20 router—With the FPC in horizontal position, look on the top back right of the FPC (see Figure 59).
Figure 59: M20 Router FPC Serial Number ID Label
Serial number ID label
AA1234
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