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Upgrading to T4000 SIBs with Junos OS Release 12.1

 Note

You must use this procedure for Junos OS Release 12.1.

You must proceed through the upgrade process in the following order:

  1. Unpack the T4000 SIBs and verify the parts received.
  2. Gather the tools required to upgrade the T4000 SIBs.
  3. Include the fabric upgrade-mode statement in the configuration of the T640 or T1600 router at the [edit chassis] hierarchy level.
  4. Commit the configuration on both the master and the backup Routing Engines.
  5. On the T640 router or the T1600 router, verify that upgrade mode has been set.
  6. Install the SIB-I-T4000 SIBs. Replace one SIB at a time.

    After each SIB is replaced, bring the newly installed SIB online, and check for crc errors and link status with the following commands before adding another SIB:

    • Use the show chassis sib command to check the SIB state. The state should be Online, indicating that the SIB is operational and running.

    • Use the show chassis fabric fpc to check the switch fabric links between the Flexible PIC Concentrators (FPCs) and the switch interface boards (SIBs). The Fabric management FPC state should be Links ok. The Link error state indicates that the link between the SIB and FPC has CRC errors. However, the link is still eligible to carry traffic.

    • Use the show chassis fabric sib to check the switch fabric links between the SIBs and FPCs. The Fabric management SIB state should be Links ok. The Link error state indicates that the link between the SIB and the FPC is not operational.

  7. Delete the fabric upgrade-mode statement in the configuration of the T4000 router at the [edit chassis] hierarchy level.
  8. Commit the configuration on both the master and the backup Routing Engines.
  9. Power off the T1600 router or T640 router.

    See the T640 Core Router Hardware Guide or T1600 Core Router Hardware Guide.

  10. Power on the T4000 router.

    See Powering On the T4000 Router.

  11. Issue the show chassis hardware models command:
    user@host> show chassis hardware models