Fujitsu Corporation

Kumiko Uematsu

Takashi Honda

Junichi Moriyama

Kanji Naito

Kazunari Shiota

Hiroshi Kanzawa

Isao Takata

Hidetoshi Kawamura

Yukie Yoshihara

A network apparatus for a wide area network (WAN) includes a plurality of ports through which a local area network (LAN) and the WAN are connected; an active-port selecting unit that selects an active port from among the ports, and identifies a port other than the active port as a standby port; and a notifying unit that notifies an interface device for the LAN via the standby port that a line connected to the standby port is in a standby mode.

Network apparatus, redundant network method, and computer product

A ring configuring method configures a network in which a plurality of nodes are connected linearly, and performs topology construction for the ring by circulating topology data through the respective nodes and collecting connection information of the respective nodes. The method includes the steps of providing in the topology data a flag indicating whether the connection information is collected in each node; inverting the flag at a terminal station which is an end node of the open ring, and turning the topology data there; causing the topology data to passing through a node other than any terminal station as it is; and adding the connection information to the topology data in each node according to the flag, and performing topology construction.

Ring configuring method and node apparatus used in the ring

Growing community of inventors

Kawasaki, Japan

Kumiko Uematsu