Juniper Networks T1600 User Manual download pdf (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

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.

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Upgrading SIBs

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Juniper Networks T1600 User Manual Page 29