Juniper MX960 Hardware Manual page 589

Upgrade the software on the Routing Engine hosting the failed SCB-MX or SCBE-MX with Junos OS
Release 13.3R1 or later.
Replace the SCBs. Ensure that you replace the SCBs at the same time.
Upgrade the software on the Routing Engine hosting the SCBE2-MX with Junos OS Release 13.3R1 or
later.
Configure Enhanced IP or Enhanced Ethernet Network Services mode.
To upgrade the SCB-MX or SCBE-MX to SCBE2, perform the following steps:
NOTE: You cannot upgrade to SCBE2-MX without powering off the MX960 router.
Prepare the MX960 Router for SCBE2-MX Upgrade | 579
1.
Power Off the MX960 Router | 579
2.
Remove the MX960 Routing Engine | 580
3.
Install the MX960 Routing Engine into the SCBE2-MX | 580
4.
Power On the MX960 Router | 581
5.
Complete the SCBE2-MX Upgrade | 582
6.
578