Upgrade The Mx240 Scb-Mx In The Master Routing Engine - Juniper MX240 Hardware Manual

user@host> show chassis environment cb 1
CB 1 status
State Online
Temperature 30 degrees C / 86 degrees F
Other details, such as power, are also displayed, along with the state.
11. Verify that the fabric planes come online correctly:
user@host> show chassis fabric summary
Plane State Uptime
4 Online 2 minutes, 25 seconds
5 Online 2 minutes, 15 seconds
6 Online 2 minutes, 3 seconds
7 Online 1 minute, 49 seconds
12. Verify that the backup Routing Engine is back online:
user@host> show chassis routing-engine 1
Routing Engine Status:
Slot 1:
Current State
13. Verify the alarms:
user@host> show chassis alarms
Alarm Time Class Description
2011-06-01 13:26:56 EDT Major CB fabrics are of mixed types
Because only one SCB-MX has been upgraded, the alarm indicates that the SCB-MXs are of mixed
type. This alarm is cleared after all the control boards are upgraded.

Upgrade the MX240 SCB-MX in the Master Routing Engine

1. Issue the request chassis routing-engine master switch command so that the backup RE becomes the
master RE. This ensures a Graceful RE Switchover (GRES) to gracefully switch between the master and
backup Routing Engines.
2. Log in to the new master Routing Engine after the switchover.
Backup
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