4. Align the rear of the CFEB or CFEB-E with the guides inside the chassis and slide it in
completely.
5. Press the ejector handle at each end of the CFEB or CFEB-E inward.
6. Tighten the thumbscrew on each ejector locking tab (shown in Figure 18 on page 65)
to seat the CFEB or CFEB-E firmly in the chassis.
7. Press and hold the ONLINE/OFFLINE button on the CFEB or CFEB-E faceplate until
the green OK LED lights steadily.
You can verify correct CFEB or CFEB-E functioning by issuing the show chassis cfeb
command described in “Maintaining the M7i CFEB and CFEB-E” on page 195.
Figure 68: Installing a CFEB or CFEB-E
See Also Preventing Electrostatic Discharge Damage to an M7i Router on page 228•
• Troubleshooting the M7i CFEB and CFEB-E on page 207
• Removing the M7i CFEB and CFEB-E on page 183
• Upgrading and Downgrading the CFEB and CFEB-E on page 185
Upgrading and Downgrading the CFEB and CFEB-E
To upgrade by replacing a CFEB with a CFEB-E or to downgrade by replacing a CFEB-E
with a CFEB requires a system reboot after swapping the CFEB devices.
To upgrade from a CFEB to a CFEB-E or downgrade from a CFEB-E to a CFEB:
1. Remove the CFEB or CFEB-E as described in “Removing the M7i CFEB and CFEB-E”
on page 183.
2. Install the upgrade CFEB-E or downgrade CFEB as described in “Installing the M7i
CFEB and CFEB-E” on page 184.
3. Reboot the router by issuing the following CLI command:
user@host> request system reboot
185Copyright © 2019, Juniper Networks, Inc.
Chapter 26: Replacing Switch Fabric Components
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