Juniper MX240 Hardware Manual page 405

3. Switch the configuration mode to ensure that you are still in configure exclusive mode by issuing the
exit command and then the configure exclusive command, from the old master Routing Engine.
4. Log in to the current master Routing Engine again and issue the configure exclusive command.
5. Issue the request system power-off other-routing-engine command to power down the backup Routing
Engine from the master Routing Engine.
6. Issue the show chassis routing-engine 0 command to verify that the Routing Engine is powered down.
user@host> show chassis routing-engine 0
Routing Engine Status:
Slot 0:
Current State
Verify that the Current State is Present, which indicates that the Routing Engine is offline.
7. Issue the request chassis fabric plane 0 offline command to take the first fabric plane of the backup
Routing Engine offline. SCB 0 has four fabric planes numbered, 0, 1, 2, and 3.
8. Issue the show chassis fabric summary command to verify that the fabric plane is offline.
user@host> show chassis fabric summary
Plane State Uptime
0 Offline
1 Online 3 minutes, 45 seconds
Verify that the State of plane 0 is Offline.
9. Take the remaining fabric planes offline by issuing the request chassis fabric plane 1/2/3 offline
command—that is, by changing the fabric plane number each time.
10. Issue the configure exclusive command to verify that the fabric planes are offline.
11. Issue the request chassis cb offline slot 0 command to take the SCB-MX in slot 0 offline.
12. Issue the show chassis environment cb 0 command to verify that the SCB is offline.
user@host> show chassis environment cb 0
Present
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