Juniper MX240 - Completing the SCBE2 Upgrade

If any of the status LEDs indicates that the power supply is not functioning normally,
repeat the installation and cabling procedures.
9. On the external management device connected to the Routing Engine, monitor the
startup process to verify that the system has booted properly.
NOTE: If the system is completely powered off when you power on the
power supply, the Routing Engine boots as the power supply completes
its startup sequence. Normally, the router boots from Junos OS on the
CompactFlash card.
After turning on a power supply, wait at least 60 seconds before turning
it off.
Completing the SCBE2 Upgrade
To complete the SCBE2 upgrade procedure:
1. Verify that the installation is successful and the SCBE2 is online by issuing the show
chassis environment cb command:
user@host> show chassis environment cb 0
CB 0 status
State Online
Temperature 30 degrees C / 86 degrees F
...
user@host> show chassis environment cb 1
CB 1 status
State Online
Temperature 30 degrees C / 86 degrees F
...
Other details, such as, temperature, power, etc are also displayed along with the state.
2. Verify that the fabric planes come online correctly by issuing the show chassis fabric
summary command:
user@host> show chassis fabric summary
Plane State Uptime
0 Online 2 days, 19 hours, 10 minutes, 9 seconds
1 Online 2 days, 19 hours, 10 minutes, 9 seconds
...
3. Verify that the backup Routing Engine is back online by issuing the show chassis
routing-engine 1 command:
user@host> show chassis routing-engine 1
Routing Engine Status:
Slot 1:
371Copyright © 2017, Juniper Networks, Inc.
Chapter 27: Replacing Switch Fabric Components