Patent attributes
Methods, systems, and apparatus, including computer programs encoded on a computer storage medium, for virtual machine name resolution. In one aspect, a method includes receiving a first outgoing packet from a source virtual machine executing on the data processing apparatus destined for a destination virtual machine, wherein the destination virtual machine belongs to a first cluster of virtual machines, and wherein the first outgoing packet identifies the destination virtual machine using a unique name for the destination virtual machine; determining an internal network address of the destination virtual machine based at least in part on the unique name for the destination virtual machine; and sending the first outgoing packet to the destination virtual machine by sending the packet to the internal network address.