Prerequisites for upgrading
You must complete the system updates before you can update any packages. Download and install package updates only after you install all system updates.
![]() Important |
In a multihop upgrade, you must confirm that the applications have been updated successfully before you begin the next system update. If you skip to the next system update without first updating the applications, you will have to reimage your Cisco Catalyst Center appliance. |
Note these points:
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You cannot upgrade the packages individually. You must complete every step described in this guide.
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Before you upgrade, ensure that the cluster link interface is connected to a switch port and is up. To confirm the interface state, complete these steps:
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In an SSH client, log in to Catalyst Center on your appliance.
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Run the ifconfig interface-name command, using the appropriate interface name for your appliance:
Interface name Catalyst Center appliance enp94s0f1
Medium second-generation appliance (DN2-HW-APL)
Medium third-generation appliance (DN3-HW-APL)
Large second-generation appliance (DN2-HW-APL-L)
Large third-generation appliance (DN3-HW-APL-L)
enp69s0f1
Extra large second-generation appliance (DN2-HW-APL-XL)
Extra large third-generation appliance (DN3-HW-APL-XL)
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Check the output's last line to verify that data has been received and transmitted. Nonzero values indicate that the interface is up and operational.
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Review this list of prerequisites before upgrading your installed instance of Catalyst Center:
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You must have SUPER-ADMIN-ROLE permissions to perform this procedure. For more information, see the Cisco Catalyst Center Administrator Guide.
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Create a backup of your Catalyst Center database. For more information, see the Cisco Catalyst Center Administrator Guide.
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If you have a firewall, allow Catalyst Center to access these URLs on each node in your cluster for all system and package downloads:
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*.cloudfront.net
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*.tesseractcloud.com
Log in to the cluster and run the maglev catalog settings validate command to verify cloud connectivity with AWS. For more information, see the "Internet connectivity traffic" table in the Cisco Catalyst Center Appliance Installation Guide.
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While the Catalyst Center GUI is compatible with these browsers that support HTTPS, we recommend that you use Chrome, not Firefox, during the upgrade:
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Google Chrome: Version 93 or later (recommended for upgrade)
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Mozilla Firefox: Version 92 or later (not recommended for upgrade)
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Have the username and password for a cisco.com user account available during the upgrade. You might be prompted for the account credentials during package installations. This can be any valid cisco.com user account.
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Allocate enough time for the upgrade. It can take more than 6 hours.
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Use Catalyst Center's applications and tools only after the upgrade is complete.
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Confirm that the minimum disk requirements are met:
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The / partition has at least 2 GB of free space.
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The /data partition has at least 35 GB of free space and is not more than 70% full.
If you receive a
storage validations failed
error, contact Cisco TAC. -
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If the Catalyst Center download, update, or install procedures fail for any reason, retry the procedure a second time using the GUI.
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If your environment uses Catalyst Center's disaster recovery implementation, see the "Implement Disaster Recovery" chapter in the Cisco Catalyst Center Administrator Guide for upgrade information specific to a disaster recovery setup.
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Before you upgrade your disaster recovery system or update your Cisco IMC firmware, first place your system on pause. For more information, see the "Pause Your Disaster Recovery System" section in the Cisco Catalyst Center Administrator Guide.
In a 3-node cluster, you can trigger an upgrade of the entire cluster from the Catalyst Center GUI (the GUI represents the entire cluster and not just a single host). An upgrade triggered from the GUI automatically upgrades all hosts in the cluster.
![]() Note |
To upgrade a 3-node cluster, Service Distribution (or high availability) must be enabled. |