The vNetwork Distributed Switch (vDS) is a much improved version of the virtual switch or vSwitch found in Vmware Infrastructure 3 (VI3). The distributed switch offers new features, is managed at the datacenter level in vCenter Server, and spans across esx hosts which simplifies administration. Third party developers can create solutions for the distributed switch using the vNetwork Appliance APIs. Distributed switches migrate runtime state during Vmotion migrations and support private vlans. Both the standard and distributed switch support the forwarding of layer 2 traffic and 802.1q VLAN encapsulation. And the new distributed switch now supports bi-directional traffic shaping.
I am glad that Vmware added the “Migrate Virtual Machine Networking” tool. This will help you move multiple vm guest from one virtual switch to another whether it’s a vSwitch or vDS. Check out the video which shows the basics of the distributed switch and one way you could migrate to vDS. There are many ways you can migrate to vDS but it will depend on your needs and your current setup. I have added a couple of links to documentation that will example the distributed switch and migration options.
This video show the basics about the VMware Virtual Distributed Switch, how to set one up, configure, and migrate from the standard virtual switch.