Abstract:
Methods, computer program products, and systems are presented. The methods include, for instance: locating, by one or more processor, at least one virtual machine within a virtual network, wherein gratuitous address resolution functionality of the at least one virtual machine is inactive; and providing, by the one or more processor, location information of the at least one virtual machine. In one embodiment, the locating comprises: receiving an IP address of the at least one virtual machine; and selecting a virtual machine hosting network device from a computing network node table, where the computing network node table comprises at least one network connection record of the silent virtual machine network device hosting a silent virtual machine having a known MAC address and an unknown IP address; and querying the silent virtual machine network device for a MAC address corresponding to the IP address of the at least one virtual machine.
Abstract:
Methods, systems, and computer program products for parameter management between programs with different addressing modes are described. A request may be received from a first program with a first addressing mode in a first runtime environment for calling a second program with a second addressing mode different from the first addressing mode, where at least one parameter included in the request is for calling the second program. A parameter area may be allocated in the first runtime environment for the at least one parameter. The at least one parameter may be stored in the allocated parameter area. The second program may be invoked based at least in part on the at least one parameter in the allocated parameter area. In this manner, parameter(s) may be communicated between the first program and the second program in an easy and effective way.
Abstract:
Methods, computer program products, and network authority devices are presented. The methods include, for instance: updating a source network with migration information of a virtual machine to redirect network traffic for the virtual machine to a destination network; and updating at least one remote network with the migration information of the virtual machine. In one embodiment, the updating includes updating the source network concurrent with a migration of the virtual machine to minimize interruption of the network traffic. In another embodiment, the updating includes updating a network device of the source network to forward the network traffic for the virtual machine to another network device of the destination network. In a further embodiment, the updating includes updating the source network to redirect the network traffic from at least one client on the at least one remote network.