Complete The Scb-Mx Upgrade - Juniper MX240 Hardware Manual

user@host> show chassis alarms
Alarm Time Class Description
2011-06-01 13:26:56 EDT Major CB fabric links require upgrade/training
2011-06-01 12:10:41 EDT Major Require a fan tray upgrade
The major alarm has changed from CB fabrics are of mixed types to CB fabric links require
upgrade/training, as a SCB-MX requires training to change the link speed from 3G to 6G for the
SCBE-MX. This alarm is displayed until the 3G to 6G link transition is completed.

Complete the SCB-MX Upgrade

1. Check to see if there are any MPCs running at 3G instead of 6G:
user@host> request chassis fabric upgrade-bandwidth info
Slot State
0 Upgrade not supported
1 Needs upgrade
2 Empty
3 Empty
4 Empty
5 Empty
In this example, the results indicate that slot 0 does not support the upgrade and slot 1 needs to be
upgraded.
2. Issue the request chassis fabric upgrade-bandwidth fpc all command to upgrade the bandwidth of all
MPCs. If you want to control the MPC line card upgrade, go to Step 3.
CAUTION:
upgrade order or if only one old MPC is present in the chassis. Running this
command may result in a loss of traffic across the MPC. Using this method may
increase the traffic loss, because it does not consider any redundancy or graceful
switchover strategies that you may have configured on the system.
3. Issue the request chassis fabric upgrade-bandwidth fpc slot 1 command to upgrade the MPC in slot
1.
4. Verify that the MPC is upgraded:
Use this command only if you are not concerned with the slot
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