Completing The Scb Upgrade - Juniper MX960 Hardware Manual

MX960 3D Universal Edge Router Hardware Guide
420
Routing Engine Status:
Slot 0:
Current State Backup
Verify the alarms by issuing the
17.
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 now changed from "CB fabrics are of mixed types" to "CB fabric
links require upgrade/training." This is because there is a switch control board that
requires training to change links 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:
Verify that any Modular Port Concentrator (MPC) is running at 3G instead of 6G by
1.
issuing the
request chassis fabric upgrade-bandwidth info
user@host> request chassis fabric upgrade-bandwidth info
Slot State
0 Upgrade not supported
1 Upgraded
2 Empty
3 Empty
4 Empty
5 Empty
6 Empty
7 Empty
The results indicate that slot 0 does not support the upgrade and slot 1 needs upgrade.
NOTE: The SCBE line card supports only DPC, MS-DPC, MPC1, MPC2, and
MPC3 line cards for the upgrade-bandwidth command. If line cards that
do not support the
chassis during the SCB to SCBE upgrade, the
upgrade-bandwidth
slot(s) that contain the unsupported line card(s).
Upgrade the bandwidth of all MPCs by issuing the
2.
upgrade-bandwidth fpc all
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
command may result in a loss of traffic across that MPC. Using this method
show chassis alarms
command option are present in the
upgrade-bandwidth
commands will return
request chassis fabric
command. If you want to control the MPC line card upgrade,
command:
command:
request chassis fabric
for the
Upgrade not supported
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