Hitachi, Ltd.

Takanori Yaginuma

Shinichiro Saito

Daiki Nozue

Shin Nishikawa

Katsunori Murase

Ken Oouti

Hisaya Tanaka

An information processing device performs software license authentication while sharing the license between an operational system and a standby system in a closed network. A license file and a license key are installed in the operational system. License synchronization starts between the operational system and the standby system. When the operational system fails, the operational system is separated from the closed network, and when a different device is provided, license synchronization is performed between the different device serving as a new standby system and a new operational system (old standby system). When the standby system fails, the standby system is separated from the closed network, and license synchronization is performed between a different device serving as a new standby system and the operational system. A device which retains the license monitors whether or not an unauthorized use of the license is conducted in the closed network.

Information processing device performing software license authentication, communication system, and software license authentication method

It is intended to provide a frame transfer apparatus for transferring an LLDP frame to reduce a traffic load of the LLDP frame periodically sent for survival confirmation. The frame transfer apparatus within a network sends the LLDP frame by converting a TTL of the LLDP frame to be transferred to its maximum value of 65535. Also, the frame transfer apparatus makes the survival confirmation for a terminal, and sends as proxy the LLDP frame in which the TTL is set to 0, in place of the terminal, at a moment of expiration of the TTL, whereby the disconnection of the terminal from the network is appropriately notified to the other terminals. Thereby, the load of the LLDP frame periodically sent for survival confirmation within the network can be reduced.

Frame transfer apparatus and frame transfer method

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Kawasaki, Japan

Takanori Yaginuma