Communication method and communication apparatus

A communication method, comprising:

• obtaining, by a first transmission server, first quality of service measurement information and first quality of service monitoring information, wherein:
• the first quality of service measurement information comprises information about quality of service of serving by the first transmission server connected to a first transmission client via a first user plane function network element and a first access network device;
• and
• the first quality of service monitoring information comprises information about quality of service of a path between the first transmission client and the first access network device and information about quality of service of a path between the first access network device and the first user plane function network element;
• determining, by the first transmission server based on the first quality of service measurement information and the first quality of service monitoring information, that deterioration of quality of service of a data flow is caused by abnormal load of the first transmission server or abnormality of a path between the first transmission server and the first user plane function network element;
• and
• determining, by the first transmission server, a second transmission server to switch to, wherein quality of service of serving the first transmission client, by the second transmission server, satisfies a quality of service requirement of an application.

A first transmission server, comprising:

• at least one processor;
• and
• at least one memory, wherein the at least one memory is configured to store instructions, and when the instructions are executed by the processor, the first transmission server is enabled to:
• determine, based on first quality of service measurement information and first quality of service monitoring information, that the first transmission server is to be switched, wherein:
• the first quality of service measurement information comprises information about quality of service of serving by the first transmission server connected to a first transmission client via a first user plane function network element and a first access network device;
• and
• the first quality of service monitoring information comprises information about quality of service of a path between the first transmission client and the first access network device and information about quality of service of a path between the first access network device and the first user plane function network element;
• and
• determine a second transmission server to switch to, wherein quality of service of serving by the second transmission server connected to the first transmission client via the first access network device and a second user plane function network element satisfies a quality of service requirement of an application.