How many seperate ESXi license keys can vCenter 5.5 manage? Not sockets, but seperate keys.
Not 100% sure if there is a limitation in number of licenses that vCenter can manage, anyway an limit will be that vCenter can manage only 3.000 hosts in Linked Mode... then I think you can have at least 3.000 ESXi licenses.
http://www.vmware.com/pdf/vsphere5/r55/vsphere-55-configuration-maximums.pdf
