Juniper Networks T1600 - Manual (Page 29)

Preparing to Upgrade the SIBs
To prepare to upgrade the SIBs, follow this procedure:
1. The T640 routing node must contain five standard SIBs or SIBs version B before
the upgrade. Verify that four SIBs are in the
Online state and one SIB is in the
Spare state. Display the status of the SIBs by issuing the show chassis sibs
command:
user@host> show chassis sibs
Slot State Uptime
0 Spare 255 days, 31 minutes, 12 seconds
1 Online 255 days, 31 minutes, 12 seconds
2 Online 255 days, 31 minutes, 12 seconds
3 Online 255 days, 31 minutes, 12 seconds
4 Online 255 days, 31 minutes, 12 seconds
To bring a SIB online, issue the request chassis sib online operational mode
command. To install additional SIBs, use the standard installation procedure
described in the T640 Internet Routing Node Hardware Guide.
NOTE: Do not proceed with the upgrade until all five SIBs are present and operational.
2. Enter configuration mode.
user@host> configure
3. Include the fabric upgrade-mode statement in the configuration at the [edit chassis]
hierarchy level.
user@host# set chassis fabric upgrade-mode
4. Commit the configuration:
■ If GRES is enabled, commit the configuration on both the master and the
backup Routing Engines:
user@host# commit synchronize
■ If GRES is not enabled, commit the configuration on the master Routing
Engine:
user@host# commit
5. Exit configuration mode.
Upgrading SIBs ■ 29
Upgrading SIBs