Juniper MX480 - Completing the SCB Upgrade

from 3G speed to 6G speed of the SCBE. This alarm is displayed until the 3G to 6G
link transition is completed.
Completing the SCB Upgrade
To complete the procedure after upgrading the SCBs:
1. Verify that any Modular Port Concentrator (MPC) is running at 3G instead of 6G by
issuing the request chassis fabric upgrade-bandwidth info command:
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
The results indicate that slot 0 does not support the upgrade and slot 1 needs to be
upgraded.
2. Upgrade the bandwidth of all MPCs by issuing the request chassis fabric
upgrade-bandwidth fpc all command. If you want to control the MPC line card upgrade,
go to Step 3.
CAUTION: Use this command only if you are not concerned with the slot
upgrade order or if only one old MPC is present in the chassis. Running this
commandmay result in a loss of traffic across that MPC. Using this method
may increase that loss, because it does not consider any redundancy or
graceful switchover strategiesthatyou may haveconfiguredon the system.
3. Upgrade the MPC in slot 1 by running the request chassis fabric upgrade-bandwidth
fpc slot 1 command.
4. Verify that the MPC is upgraded by issuing the request chassis fabric upgrade-bandwidth
info command:
user@host> request chassis fabric upgrade-bandwidth info
Slot State
0 Upgrade not supported
1 Upgraded
2 Empty
5. Verify the state of the fabric planes for all MPCs by issuing the show chassis fabric
summary command.
user@host> show chassis fabric summary
Plane State Uptime
0 Spare 21 seconds
391Copyright © 2017, Juniper Networks, Inc.
Chapter 27: Replacing Switch Fabric Components