Link congestion processing method, communication system, and related apparatus

A network device, applied to a first network device, wherein the first network device belongs to a first network, the first network further comprises a second network device, the first network device and the second network device are traffic ingress devices of the first network, the first network device is connected to a third network device in a second network through a first link, and the second network device is connected to a fourth network device in the second network through a second link;

• and
• the network device comprises one or more memories configured to store instructions;
• and
• one or more processors coupled to the one or more memories and configured to execute the instructions, wherein execution of the instructions causes the network device to:
• obtain first quality information and second quality information, wherein the first quality information comprises quality information of the first link, and the second quality information comprises quality information of the second link;
• and
• if it is determined, based on the first quality information and the second quality information, that a traffic adjustment condition is satisfied, adjust target traffic on the first link to the second link.

A communication system, wherein the system comprises a first network device and a second network device, the first network device and the second network device are traffic ingress devices of a first network, the first network device is connected to a third network device in a second network through a link, and the second network device is connected to a fourth network device in the second network through a link;

• and
• the first network device is configured to perform operations comprising:
• obtaining first quality information and second quality information, wherein the first quality information comprises quality information of a first link, and the second quality information comprises quality information of a second link;
• and
• if it is determined, based on the first quality information and the second quality information, that a traffic adjustment condition is satisfied, adjusting target traffic on the first link to the second link.