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AssigneeElectronics and Telecommunications Research Institute
InventorsKwang Koog Lee, Jeong Dong Ryoo, Sang Min Lee, Dae Ub Kim, Jea Hoon Yu, Tea Whan Yoo
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A method for updating a filtering database in a multi-ring network, includes: when the topology of a lower ring in a multi-ring network, in which a plurality of ring networks are connected by two ring connection nodes, is altered and the ring connection node detects the alteration in the topology of the lower ring, erasing, by the ring connection node, its filtering database; generating, by the ring connection node, a control message including a ring ID, a blockage flag, and an erasure flag; transmitting the control message in both directions of the ring; and determining, by a node which receives the control message, to erase a filtering database by referring to and correcting the blockage and erasure flag information included in the control message.
A method for updating a filtering database maintained by an upper ring when a topology of a lower ring is altered in a multi-ring network in which a plurality of ring networks are connected by two ring connection nodes, the method comprising:
A method for updating a filtering database by determining whether to erase the filtering database upon receiving a control message transmitted from a ring connection node which has detected an alteration of a topology of a lower ring in a multi-ring network in which a plurality of ring networks are connected by two ring connection nodes, the method comprising:
Dependencies are inferred from the claim text.