Traffic scheduling method, device, and system

A method implemented by a first network device in a fully distributed model using Time-Sensitive Networking (TSN), wherein the method comprises:

• receiving, from a second network device of a TSN network, a traffic scheduling message comprising traffic scheduling information, wherein the traffic scheduling information comprises time extension information indicating an extension time of currently effective traffic scheduling information before the traffic scheduling information takes effect, wherein the traffic scheduling information is based on a first talker attribute message and a listener attribute message, wherein the first talker attribute message requests the second network device to deliver the traffic scheduling information of a data stream, wherein the first talker attribute message indicates that a talker device is a transmitting end of the data stream, and wherein the listener attribute message indicates that a listener device is a receiving end of the data stream;
• generating a gate control list based on the traffic scheduling information;
• and
• controlling, based on the gate control list, a state of a port for transmitting the data stream.

A first network device in a fully distributed model using Time-Sensitive Networking (TSN), wherein the first network device comprises:

• a receiver configured to:
• receive, from a talker device of a TSN network, a first talker attribute message requesting the first network device to deliver traffic scheduling information of a data stream, wherein the talker device is a transmitting end of the data stream;
• and
• receive, from a listener device of the TSN network, a listener attribute message indicating that the listener device is a receiving end of the data stream;
• a processor coupled to the receiver and configured to determine, based on the first talker attribute message and the listener attribute message, the traffic scheduling information and a transmission path of the data stream, wherein the traffic scheduling information instructs generation of a gate control list for controlling a state of a first port for transmitting the data stream, and wherein the traffic scheduling information comprises time extension information indicating an extension time of currently effective traffic scheduling information before the traffic scheduling information takes effect;
• and
• a transmitter coupled to the processor and configured to send, to a second network device on the transmission path, a traffic scheduling message comprising the traffic scheduling information.

A first network device in a fully distributed model using Time-Sensitive Networking (TSN), wherein the first network device comprises:

• a receiver configured to receive, from a second network device of a TSN network, a traffic scheduling message comprising traffic scheduling information, wherein the traffic scheduling information comprises time extension information indicating an extension time of currently effective traffic scheduling information before the traffic scheduling information takes effect, wherein the traffic scheduling information is based on a first talker attribute message and a listener attribute message, wherein the first talker attribute message requests the second network device to deliver the traffic scheduling information of a data stream, wherein the first talker attribute message indicates that a talker device is a transmitting end of the data stream, and wherein the listener attribute message indicates that a listener device is a receiving end of the data stream;
• and
• a processor coupled to the receiver and configured to:
• generate a gate control list based on the traffic scheduling information;
• and
• control, based on the gate control list, a state of a port for transmitting the data stream.