COMMUNICATION APPARATUS INCLUDING A PLURALITY OF NETWORK INTERFACES, METHOD OF CONTROLLING COMMUNICATION APPARATUS, AND STORAGE MEDIUM

摘要

A communication apparatus including a plurality of network interfaces capable of retransmitting data immediately after failure in data. It is determined whether there is a network interface having an IP address in the same subnet as a destination IP address in the network interfaces. Data transmission is performed using a default network interface if it is determined that there is no network interface having an IP address in the same subnet as the destination IP address in the network interfaces. If it is determined that there is no network interface having an IP address in the same subnet as the destination IP address in the network interfaces and where the data transmission using the default network interface has failed, the data transmission is performed again by changing the used network interface from the default network interface to another network interface.

主权项

1. A communication apparatus that includes a plurality of network interfaces, one of the plurality of network interfaces being set as a default network interface, comprising:
a determination unit configured to determine whether or not there is a network interface having an IP address in the same subnet as a destination IP address in the plurality of network interfaces; a transmission unit configured to perform data transmission using the default network interface, in a case where it is determined by said determination unit that there is no network interface having an IP address in the same subnet as the destination IP address in the plurality of network interfaces; and a retransmission unit configured to perform the data transmission again by changing the used network interface from the default network interface to another network interface, in a case where it is determined by said determination unit that there is no network interface having an IP address in the same subnet as the destination IP address in the plurality of network interfaces and also where the data transmission using the default network interface has failed.