Fujitsu Corporation

Satoru Hirasawa

Kenji Fukuda

Takayuki Ohtsuka

Toshifumi Inoue

Yoshiaki Fukunaga

Tomohiro Sakai

Isamu Fukuda

Nobuyuki Fukuda

Nobuaki Kitazumi

Kiyohisa Hoshino

Takeshi Masubuchi

Takenari Takahashi

Yoshimi Sasaki

Takahiro Fujii

A communication apparatus is configured to include first and second cards, and a card-to-card link connecting the cards. Each card is communicably connected to another communication apparatus through a route connected to the card. One of the cards is determined to be a primary card that controls data transmission between the communication apparatus and another communication apparatus, and the other card is determined to be a secondary card controlled by the primary card. The primary card establishes a primary data-path for transmitting primary data, using one of the first and second routes connected to the primary card. The primary card further establishes a secondary data-path for transmitting secondary data, using the card-to-card link, the secondary card, and the other one of the first and second routes connected to the secondary card.

Communication apparatus for transmitting data through a plurality of data-paths

In a method for controlling a communication system, the reception device reports a first size of a free space of a buffer in the reception device to the transmission device. The transmission device controls transmission of first data with a first priority to the reception device based on the first size. The transmission device controls transmission of second data with a second priority lower than the first priority to the reception device based on a threshold less than the first size.

Communication apparatus and method for controlling communication system

When being triggered by a call setting request that has been made, dummy information that is different from information to be transmitted and is information used for creating a path on which encrypted communication is to be performed is generated. The path on which the encrypted communication is to be performed is established by using the generated dummy information. A responding process of responding to the call setting request is performed after the path on which the encrypted communication is to be performed has been established. Thus, in the case where information that is obtained after the responding process of responding to the call setting request is encrypted and transmitted, it is possible to transmit the information while maintaining the real-time characteristics of the information to be transmitted.

Packet transmitting and receiving apparatus and packet transmitting and receiving method

Growing community of inventors

Kawasaki, Japan

Satoru Hirasawa