Information About Using Cisco VSUM to Install Licenses
Cisco VSUM is a GUI that you can use to install and upload a license on the Virtual Supervisor Module (VSM) to mark the VSM as licensed.
The license file is shared by both VSMs in an HA pair. A license file contains the number of licenses ordered for your VSM. One license is required for each CPU socket on each VEM, but you do not need a license for the VSM itself. A VSM can have more than one license file depending on the number of CPU sockets on each VEM.
If the license checkout fails, the module is marked as unlicensed and the virtual Ethernet (vEth) interfaces that are attached to that module do not come up. For software upgrades, if the switch is still in the default licensing period, the license is extended for another 60 days from the software upgrade date.
See the Cisco Nexus 1000V Platform Multi-Hypervisor Licensing Guide for more information about the Cisco Nexus 1000V licensing model.