11. 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
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 by issuing the show chassis
routing-engine 1 command:
user@host> show chassis routing-engine 1
Routing Engine Status:
Slot 1:
Current State Backup
13. Verify the alarms by issuing the show chassis alarms command:
user@host> show chassis alarms
Alarm Time Class Description
2011-06-01 13:26:56 EDT Major CB fabrics are of mixed types
As only one SCB has been upgraded, the alarm indicates that the SCBs are of mixed
type. This alarm is cleared after all the control boards are upgraded.
Upgrading the SCB in the Master Routing Engine
To upgrade the SCB in the master Routing Engine:
1. Ensure a Graceful RE Switchover (GRES) to gracefully switch between the master
and backup Routing Engines, so that the backup RE becomes the master RE, by issuing
the request chassis routing-engine master switch command.
2. Log in to the new master Routing Engine after the switchover.
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. Power down the backup Routing Engine from the master Routing Engine by issuing
the request system power-off other-routing-engine command.
6. Ensure that the Routing Engine is powered down by issuing the show chassis
routing-engine 0 command.
user@host> show chassis routing-engine 0
405Copyright © 2017, Juniper Networks, Inc.
Chapter 27: Replacing Switch Fabric Components
To Next Page
Loading...
Need help?
General
