Patent ID: 9634887
Date: 2017-04-25
CPC Classifications: G06F,H04L

Claim:
1. A system, comprising: a first server configured to execute a first virtual machine and a second virtual machine among a plurality of virtual machines belonging to both a first virtual network and a second virtual network, each of the plurality of virtual machines are identified by a common address in the second virtual network and the second virtual machine is configured to be a back-up virtual machine for the first virtual machine; a second server; and a switch including a first port coupled to the first server, a second port coupled to the second server and a third port coupled to a computer apparatus, the computer apparatus being configured to belong to the second virtual network and to communicate with the plurality of virtual machines based on the common address, the switch being configured to: the first virtual network is a virtual network coupling the plurality of virtual machines, the first virtual machine is configured to broadcast a message within the first virtual network to notify the common address, the second virtual network is a network coupling the first virtual machine and the second virtual machine in accordance with a virtual router redundancy protocol (VRRP), and the first virtual network is a network to transfer a VRRP advertisement message.