Abstract: A management server device in a virtual server system includes: a unit that collects load data from plural physical server devices; a unit that calculates the amount of resource available in each of the physical server devices using the collected load data; a unit that calculates a resource allocation amount for the managing virtual server so as to fall within the range of the calculated amount of resource available; and a unit that instructs a physical server device on which the managing virtual server is running to allocate the resource with the calculated resource allocation amount for the managing virtual server.

Abstract: An auto-configuration server (ACS) and a management method of customer premises equipments (CPEs) thereof are provided, and the ACS includes a sub server communication module and a group management module. When an online message is received from a new CPE, the management method includes performing an extension procedure including the following steps. A health value of the ACS is calculated. When the health value of the ACS is less than or equal to a health threshold, a new group and a sub server corresponding to the new group are added and the new CPE is managed by the sub server corresponding to the new group.

Abstract: A distributed cloud environment system comprising: a repository; a plurality of cloud managed nodes with a client program interface; a plurality of service management components with a service management component interface; a central trusted computing platform service in communication with the repository, the plurality of cloud managed nodes and the plurality of service management components, comprising: a first interface for communication with the client program interface in each of the plurality of cloud managed nodes through a first single touch point; and a second interface for communication with the service management component interface for the plurality of service management components through a second single touch point. The central trusted computing platform service manages interaction of the plurality of service management components with the plurality of cloud managed nodes, and the interaction of the plurality of cloud managed nodes with the repository.

Abstract: A virtual network is dynamically created when a relay communication system is constructed including a plurality of relay servers that are arranged to communicate with each other. In the relay communication system, the VLAN client terminals defining the VLAN group are allowed to share VLAN group information. In addition, a VLAN session is established between the activatable VLAN devices among the VLAN client terminals based on the VLAN group information, and the VLAN devices are allowed to share virtual address information created when the VLAN group is activated. The VLAN device sets the given virtual address in a VLAN interface of the VLAN device, and communicates with other VLAN device using the virtual address and VLAN session.