Communication device and method for controlling transmission priority related to shared backup communication channel

摘要

A communication device includes a processor that is operative to perform actions, including, determining whether a failure occurs in a regular communication channel to transmit a packet to another communication device, selecting, upon determining that the failure occurs in the regular communication channel, a backup communication channel for transmitting the packet, determining, upon selecting the backup communication channel, whether the backup communication channel is shared by the regular communication channel and another regular communication channel, changing, upon determining that the backup communication channel is shared, a priority assigned to the packet transmitted from the regular communication channel to the backup communication channel, and controlling the transmission of the packet in accordance with the changed priority.

主权项

1. A communication device comprising:
a memory; and a processor coupled to the memory and configured to execute a process, the process including: determining whether a failure occurs in a first communication channel to transmit a packet to another communication device; selecting, upon determining that the failure occurs in the first communication channel, a second communication channel for transmitting the packet; determining, upon selecting the second communication channel, whether the second communication channel is shared by the first communication channel and a third communication channel; changing, upon determining that the second communication channel is shared, a first priority assigned to the packet to be transmitted through the shared second communication channel instead of the first communication channel where the failure occurs; controlling the transmission of the packet in accordance with the changed priority; determining, upon determining that the second communication is shared, whether an identifier for the first communication channel and an identifier for the third communication channel match each other; and changing, upon determining that the first-communication-channel identifier and the third-communication-channel identifier match each other, the first-communication-channel identifier added to the packet transmitted from the first communication channel to the second communication channel to a second-communication-channel identifier.