Step 3: Perform an SFM Swap Test

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.

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 doing one of the following:

• Use the following CLI command:

user@host> request chassis sfm slot slot-number offline

• 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 by doing one of the following:

• Use the following CLI command:

user@host> request chassis sfm slot slot-number online

• Press and hold the offline button on the SFM faceplate until the green OK LED lights (about 5 seconds).

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.