Juniper PTX5000, Hardware Manual

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NOTE: If link errors or traffic drops occur at any point during the upgrade, you can reverse
the upgrade procedure and return the PTX5000 to its original state by taking the newly
installed SIBs offline and replacing them with the original SIBs, one at a time. After the
original SIBs are installed, use the commands listed above to verify that there are no longer
any link errors or traffic drops. Finally, delete the
fabric upgrade-mode default statement from
the configuration of the PTX5000 at the [edit chassis] hierarchy level, and commit the
configuration change.
14. Repeat Step 9 through Step 13 until you have replaced each of the old SIBs with the new SIBs.
15. Delete the fabric upgrade-mode default statement from the configuration of the PTX5000 at the [edit
chassis]
hierarchy level.
[edit]
user@host# delete chassis fabric upgrade-mode
16. Commit the configuration on both the primary and the backup Routing Engines.
[edit]
user@host# commit synchronize
17. Check again for any issues with the following commands:
• show chassis alarms
• show chassis fabric fpcs
• show chassis fabric sibs
• show interfaces statistics and show pfe statistics traffic
Upgrading the FPCs in an Operational PTX5000
Before you begin upgrading the FPCs, use the show chassis hardware command to verify the following:
• That the correct SIBs are installed.
• That the correct PDUs and PSMs are installed.
• That the correct fan trays are installed.
To determine which hardware is required for the FPC that you are upgrading to, see "PTX5000 FPC
Upgrade Kit" on page 544 .
To remove an existing FPC:
551