Fujitsu Corporation

Satoshi Namura

Michio Kusayanagi

Akio Morimoto

Koji Tatsumi

Kazuhisa Shimazaki

Hisaya Ogasawara

Koichiro Yamada

Shigeo Konriki

Atsunori Yamamoto

Masatoshi Yamamoto

Norihisa Uchimoto

The packet processing method includes receiving a first packet, selecting a first storage area from a plurality of storage areas included in a buffer as a packet storage area in accordance with first time at which the first packet is received, and storing the first packet into the selected first storage area. The first storage area is selected as the packet storage area for the other packets received when a predetermined time period has passed from the first time.

Packet processing method, and packet transmission apparatus

A first communication device receives an ATM cell bound for a second ATM device from a first ATM device via an ATM interface, and then the first communication device sends a data frame including the ATM cell to the second ATM device via wide area Ethernet. In addition, the first communication device sends a synchronization frame to the second ATM device via the wide area Ethernet continuously at a predetermined time interval in accordance with a clock frequency of the first ATM device. A second communication device receives the synchronization frame and measures a clock frequency of the first ATM device in accordance with a time interval of receiving the synchronization frame so as to reproduce a clock having the same frequency as the measured clock frequency. After that, the second communication device sends the clock to the second ATM device via an ATM interface.

System for supporting communications among ATM devices, device for supporting data transmission, method for sending data, and computer program product

Growing community of inventors

Amagasaki, Japan

Satoshi Namura