Controlling Redundant SFMs ! 591
Chapter 44: Monitoring Redundant SFMs
user@host> show chassis sfm
Temp CPU Utilization (%) Memory Utilization (%)
Slot State (C) Total Interrupt DRAM (MB) Heap Buffer
0 Ready 0 0 0 0 0 0
1 Online 38 1 0 64 8 46
2 Offline --- Unresponsive ---
3 Online 39 1 0 64 8 46
What It Means The command output shows that the SFM restart has been initiated. On the M160
router, the command output indicates to use the
show chassis sfm CLI command to
verify that the SFM has been restarted. The SFM status information shows that the
SFM is ready and that the status values are 0 for approximately 5 seconds until the
SFM is active.
Step 3: Perform an SFM Swap Test
Action To perform a swap test on an SFM, follow these steps:
1. Remove the chassis rear component cover by loosening the screws on the
corners of the cover and pulling it straight out from the chassis.
2. Remove the SFM, as described in the M40e and M160 router hardware guides.
3. Take the SFM offline by using the
request chassis sfm slot slot-number offline CLI
command. You can also press and hold the offline button on the SFM faceplate
at the rear of the router until the SFM OK LED turns off (about 5 seconds).
4. Replace the SFM with one that you know works.
5. Bring the SFM online. Press and hold the offline button on the SFM faceplate
until the green OK LED lights (about 5 seconds). You can also use the
request
chassis sfm slot
slot-number online CLI command.
6. Reinstall the rear component cover and tighten the screws to secure it to the
chassis.
7. Check the SFM status. See “Display the SFM Summary Status” on page 582.
Controlling Redundant SFMs
Steps To Take To control the operation of an SFM, follow these steps:
1. Take an SFM Offline on page 592
2. Bring an SFM Online on page 592
3. Switch SFM Mastership on page 593
CAUTION: Before performing a swap test, always check for bent pins in the
midplane and check the SFM for stuck pins in the connector. Pins stuck in the
component connector can damage other good slots during a swap test.
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