6.7

Table Of Contents
The following list sums the requirements that your system must meet so that you can use migration
across vCenter Server instances:
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The source and destination vCenter Server instances and ESXi hosts must be 6.0 or later.
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The cross vCenter Server and long-distance vMotion features require an Enterprise Plus license. For
more information, see http://www.vmware.com/uk/products/vsphere/compare.html.
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Both vCenter Server instances must be time-synchronized with each other for correct vCenter Single
Sign-On token verification.
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For migration of compute resources only, both vCenter Server instances must be connected to the
shared virtual machine storage.
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When using the vSphere Web Client, both vCenter Server instances must be in Enhanced Linked
Mode and must be in the same vCenter Single Sign-On domain. This lets the source vCenter Server
to authenticate to the destination vCenter Server.
For information about installing vCenter Server in Enhanced Linked Mode, see the vCenter Server
Installation and Setup documentation.
If the vCenter Server instances exist in separate vCenter Single Sign-On domains, you can use
vSphere APIs/SDK to migrate virtual machines. For more information, see the
VirtualMachineRelocateSpec data object in the VMware vSphere API Reference.
Network Compatibility Checks During vMotion Between vCenter Server
Instances
Migration of VMs between vCenter Server instances moves VMs to new networks. The migration process
performs checks to verify that the source and destination networks are similar.
vCenter Server performs network compatibility checks to prevent the following configuration problems:
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MAC address compatibility on the destination host
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vMotion from a distributed switch to a standard switch
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vMotion between distributed switches of different versions
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vMotion to an internal network, for example, a network without a physical NIC
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vMotion to a distributed switch that is not working properly
vCenter Server does not perform checks for and notify you about the following problems:
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If the source and destination distributed switches are not in the same broadcast domain, virtual
machines lose network connectivity after migration.
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If the source and destination distributed switches do not have the same services configured, virtual
machines might lose network connectivity after migration.
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