PACKET FORWARDING APPARATUS AND PACKET ROUTING METHOD

摘要

A packet forwarding apparatus that allows a communication terminal to which a packet is addressed to quickly recognize a communication breakdown and that performs a route reorganization. In the apparatus, if receiving neither any data reception restoration signal nor any transmitting terminal identifier from an arrival interval monitoring part (306) within an externally set routing data transmission interval, a number-of-transmissions counting part (309) retransmits a routing data transmission request signal and a transmitting terminal identifier to a control data processing part (307). The number-of-transmissions counting part (309) repeats this operation the number of times equal to the externally set number of routing data transmissions. Even if receiving neither any data reception restoration signal nor any transmitting terminal identifier from the arrival interval monitoring part (306) until completion of that repetition, then the number-of-transmissions counting part (309) transmits a routing data transmission completion signal and the transmitting terminal identifier to the arrival interval monitoring part (306).