vMotion migrations use a dedicated network to transfer the virtual machine state between the source and destination hosts. You must configure such a network for each host that you will use for vMotion migrations.

You must perform the network configuration steps on both the source and the destination host. The source host is running the virtual machine that you will migrate to the destination host by using vMotion.

1

Select the host ESXi-A in the inventory.

2

Click the Manage tab.

3

Click Networking and click Virtual adapters.

4

Click the Add host networking icon.

5

Click VMkernel Network Adapter, and click Next.

The VMkernel TCP/IP stack handles traffic for several ESXi services, including vMotion.

6

Click New standard switch, and click Next.

This scenario instructs you to use vSphere standard switches for vMotion networking. In a production environment, you can choose to configure vMotion networking by using a vSphere distributed switch. See vSphere Networking.

7

Click the Add adapters icon (+) to assign an adapter to the Active Adapters group and click Next.

8

In the Network label text box, type vMotion Network.

9

Click vMotion traffic to enable this port group to advertise itself to another host as the network connection through which vMotion traffic should be sent, and click Next.

Leave the rest of the port settings to their default values.

10

Select Use static IPv4 settings, type the port network settings, and click Next.

The IP address settings might be in the same network or in a subnet. vMotion migrations are also possible over DHCP networks.

In a production environment, you should use a subnet for vMotion only, because the migration generates intensive traffic. Assign unique IP addresses from the same subnet to all VMkernel interfaces.

11

Review your settings and click Finish.

12

Repeat the procedure for the host ESXi-B and assign to the second vMotion adapter a unique IP.

The virtual machines in your environment can now be migrated over the newly-created virtual network adapters.