Method and device for parallelly sending route advertisement messages

A network device, wherein the network device is used in a network system comprising a first network device and a second network device, the first network device and the second network device establish a quick user datagram protocol internet connection (QUIC)-based border gateway protocol (BGP) connection, the network device is the first network device, and the network device comprises:

• at least one processor;
• and
• at least one non-transitory computer-readable storage medium storing a program comprising instructions that, when executed by the at least one processor, cause the network device to:
• obtain two or more route sending groups, wherein each of the two or more route sending groups comprises one or more pieces of route information, wherein
• for each of the two or more route sending groups, generate a corresponding route advertisement message, wherein each of the generated at least two route advertisement messages comprises the one or more pieces of route information in the route sending group corresponding to the route advertisement message;
• and
• send, in parallel, the at least two route advertisement messages corresponding to the two or more route sending groups to the second network device through the QUIC-based BGP connection,
• wherein each of the at least two route advertisement messages is transmitted through a different sending stream of the QUIC-based BOP connection.