Patent ID: 9634930
Date: 2017-04-25
CPC Classifications: G06F,H04L

Claim:
1. A method of controlling a virtual router, the method comprising: transferring, from a first network to a second network, a first virtual machine included in a plurality of virtual machines which are executed in the first network, the first network including a first virtual router having a first address; generating, in the second network, a second virtual router having a same address as the first address; constructing, with respect to the plurality of virtual machines arranged in the first network and the second network, a first virtual network that establishes coupling between the plurality of virtual machines including the first virtual machine, coupling between plurality of virtual machines except the first virtual machine and the first virtual router, and coupling between the first virtual machine and the second virtual router; constructing a second virtual network that establishes coupling between the first virtual router and the second virtual router; creating first and second routing tables corresponding to the first and second virtual routers respectively; and setting the first and second routing tables in the first and second virtual routers, respectively, wherein the creating of the first routing table includes: the creating of the second routing table includes: