That is, when the fourth node is the target receiving node of the third data packet, the fourth node may perform corresponding processing based on the fourth message carried in the third data packet, if the fourth node is not the target receiving node of the third data packet, the fourth node may perform corresponding processing based on the fourth message carried in the data packet, and continue to transmit the data packet to the target receiving node to transmit the data packet to the target receiving node so that the target receiving node may perform corresponding processing based on the information in the data packet (including the fourth message).
The above optional embodiments of the third aspect are described from the perspective of the fourth message transmitting node (that is, the third node). Similarly, when the corresponding solution is described from the receiving node (the fifth node), the communication methods may include:
receiving the fourth message transmitted by the third node, the fourth message is used to indicate the timing of updating and/or releasing configuration by the fourth node, and/or indicate the status of the data packet transmitted to the fourth node.
Alternatively, the fifth node is the fourth node, or the fifth node is another node on the transmission path between the third node and the fourth node.
Alternatively, if the fifth node is another node, the method further includes: