TPVM Complete Package Upgrade
    
    
        You can perform a complete package
            upgrade of TPVM.
     
        
        You can upgrade a device‘s TPVM image when a TPVM is installed and running an XCO instance which is managing the
            device. After the TPVM image update, an XCO instance gets reinstalled with the
            same XCO version as before and rejoins with
            the active XCO instance. 
        
Note   
            
                - An upgrade from TPVM 4.5.x to TPVM 4.6.0 is a complete package upgrade. 
- Change the TPVM password after you upgrade the SLX-OS version. This is due to
                    Ubuntu 20.04 LTS having a restriction with supporting certain special ASCII
                    characters. These special characters are required in storing TPVM password on
                        SLX-OS.
- TPVM Incremental upgrade is not supported. 
For more information about commands and supported parameters, see 
    ExtremeCloud Orchestrator Command Reference,
     3.6.0
   
        Assumptions and Limitations
            
                - XCO supports SLX-OS 20.3.2a and
                    later. The TPVM upgrade has SLX-OS dependencies for the new SLX commands:
                        tpvm
                        upgrade and tpvm revert. The
                    TPVM configurations has already been present in the SLX running-config.
- XCO does not support TPVM
                    upgrade on a single-node TPVM deployment.
- You can deploy a TPVM on multiple
                    high-availability (HA) nodes, but you can upgrade a TPVM only on the standby
                    TPVM node.
- TPVM upgrade is allowed only on
                    the XCO HA nodes that are managing
                    the devices and hosting the XCO HA instances.
- The XCO version is reinstalled and
                    remains the same after the TPVM upgrade. You must not perform an XCO version upgrade during a
                    TPVM upgrade. Ensure that you perform the XCO version upgrade before or after
                    the TPVM upgrade is completed on both the HA nodes.
- You can upgrade only one device‘s
                    TPVM at a time.
- User is required to change the TPVM password after upgrading to SLX-OS 20.5.1a.
                    This is due to Ubuntu 20.04 LTS having a restriction with supporting certain
                    special ASCII characters. These special characters are required in storing TPVM
                    password on SLX-OS.