Message scheduling method, network device, storage medium, and computer program product

A method for packet scheduling, comprising:

• acquiring a local deadline time indicative of a maximum allowable residence time of a packet at a local node;
• acquiring a cumulative latency error indicative of a difference between a sum of each local deadline time that the packet goes through at each upstream node via which the packet is transferred and the sum of each residence time that the packet goes through at each upstream node via which the packet is transferred;
• acquiring a forwarding latency;
• subtracting the forwarding latency from a sum of the local deadline time and the cumulative latency error to acquire a deadline time adjustment value;
• and
• adjusting a time at which the packet is sent according to the deadline time adjustment value.

A network device, comprising a memory, a processor and a computer program stored in the memory and executable by the processor which, when executed by the processor causes the processor to carry out method for packet scheduling, comprising:

• acquiring a local deadline time indicative of a maximum allowable residence time of a packet at a local node;
• acquiring a cumulative deadline time indicative of a sum of each local deadline time that the packet goes through at each upstream node via which the packet is transferred, and a cumulative residence time indicative of the sum of each local residence time that the packet goes through at each upstream node via which the packet is transferred;
• acquiring a forwarding latency;
• subtracting the cumulative residence time and the forwarding latency from the sum of the local deadline time and the cumulative deadline time to acquire a deadline time adjustment value;
• and
• adjusting a time at which the packet is sent according to the deadline time adjustment value.