Alaxala Networks Corporation

Kengo Miyajima

Hideo Kodaka

Takashi Miyazaki

A packet relay device determines a port to be placed on standby in a link aggregation, determines whether there is an active port among ports belonging to redundant network interfaces, and, if a network interface has no active port, places the network interface on standby. The packet relay device monitors whether a failure has occurred in an active network interface and, if a failure is detected, activates a standby network interface and places the failed network interface on standby.

Packet relay device

A fault that cannot be autonomously detected by all or a specific software module and all or a specific hardware device which realize the packet transmitting/receiving function is detected, and also a fault part is specified. A packet relay device realizes the packet transmitting and receiving functions through plural software modules and plural hardware devices. The packet relay device includes a memory space, reception statistics, and transmission statistics, and collects pass information of fault monitoring packets in all or the specific software module and all of the hardware devices whose operation is to be confirmed by the fault monitoring packets for detecting the faults within the device. A fault part specifying unitis provided for specifying the fault part according to the pass information of the fault monitoring packet when abnormality is detected.

Growing community of inventors

Ayase, Japan

Kengo Miyajima