摘要 |
PURPOSE:To confirm information showing a fact that a fault has been generated, which host computer is being updated, by terminal equipment, by adding the interlocking information to an updating telegraphic message after updating of the host computer, and always sending it back temporarily to the terminal equipment. CONSTITUTION:When a network controller 3 updates plural host computers A, B, the controller 3 executes a control of a network so that an updating telegraphic message is sent back to a terminal equipment 4 after updating of each host computer. And information adding part 12 in the host computer adds interlocking information to the updating telegraphic message transmitted to the equipment 4 through the controller 3. A judging part 42 in the equipment 4 judges whether the updating telegraphic message is to be transmitted to other host computer than a specific host computer or not, based on the updating telegraphic message which has been transmitted from said specific host computer. A data transmitting part 44 in the equipment 4 outputs information for showing whether the updating processing of said specific host computer has been formed or not, based on the updating telegraphic message.
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