Network relay apparatus, gateway redundancy system, program, and redundancy method
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United States of America Patent
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Jul 30, 2019
Grant Date -
Jan 4, 2018
app pub date -
Jan 4, 2016
filing date -
Jan 28, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
Provided is a network relay apparatus of a gateway redundancy system, including: a storage unit configured to store, as an internal status, a redundancy status for indicating whether the network relay apparatus operates as an active system or a standby system for each subscriber terminal or subscriber terminal group, and a subscriber status for indicating a list of used address information for each subscriber terminal; and a management unit configured to: monitor communication between another network relay apparatus in a redundancy configuration and a subscriber terminal group; record, into the storage unit, used address information assigned by the another network relay apparatus to a subscriber terminal as a part of the subscriber status; and notify or advertise the sequentially recorded internal status to a notification destination sequentially at a predetermined timing.
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