a processor;

the processor is couple to a memory, wherein the memory includes instructions that, responsive to being executed by the processor, cause the processor to perform operations to:

receive, indication information from a first network apparatus, wherein the indication information is used to indicate that a first application is to be associated with at least two sessions for redundant transmission, and wherein the indication information is a first description and a second description that are of the first application and that are included in a user route selection policy (URSP), the first description establishing a first session of the at least two sessions, and the second description establishing a redundant session of the first session, the first description being different from the second description; and

establish, at least one session for the first application based on the indication information, wherein the established at least one session for the first application is associated with the at least two sessions.