Upgrade The Scb-Mx In The Backup Routing Engine - Juniper MX480 Hardware Manual

Upgrade the SCB-MX in the Backup Routing Engine

TIP: The MX480 has two slots for the SCB-MX—that is, SCB 0 and SCB 1—and these correspond
to RE0 and RE1 respectively, where SCB 1 is the first SCB-MX.
To upgrade the SCB-MX in the backup Routing Engine:
1. Power down the backup Routing Engine from the master Routing Engine by issuing the request system
power-off other-routing-engine command.
2. Verify that the Routing Engine is powered down by issuing the show chassis routing-engine 1 command.
The slot of the Routing Engine may be 0 or 1, and is shown as 1 in this example:
user@host> show chassis routing-engine 1
Routing Engine Status:
Slot 1:
Current State
Ensure that the Current State is Present, which indicates that the Routing Engine is offline.
3. Take the fabric plane offline by issuing the request chassis fabric plane 4 offline command. SCB 1 has
four fabric planes numbered, 4, 5, 6, and 7.
4. Verify that the fabric plane 4 is offline by issuing the show chassis fabric summary command.
user@host> show chassis fabric summary
Plane State Uptime
4 Offline
5 Online 1 hour, 15 minutes, 35 seconds
5. Take the remaining fabric planes offline by issuing the request chassis fabric plane 5/6/7 offline
command—that is, by changing the fabric plane number each time. Verify that the fabric planes are
offline by issuing the command given in Step 2.
6. Take the SCB-MX in slot 1 offline by issuing the request chassis cb offline slot 1 command.
7. Verify that SCB-MX is offline:
Present
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