About Managing an Existing Cisco Nexus 1000V Switch
If you want to add hosts to, monitor, or upgrade a Cisco Nexus 1000V switch that was installed without Cisco VSUM, you must first set up management in Cisco VSUM.
You can set up management when you add hosts to, monitor, or upgrade a Cisco Nexus 1000V switch, as documented later in this guide. However, you can also set up Cisco VSUM management ahead of time.
It is important that you set up management in Cisco VSUM for all the Cisco Nexus 1000V versions that were installed without using the Virtual Switch Image File Upload utility.