Methods, systems, and computer readable media for providing updated network slice information to a network slice selection function (NSSF)

A system for providing updated network slice information to a network slice selection function (NSSF), the system comprising:

• a network slice management function (NSMF) including at least one processor and a memory;
• and
• an orchestration engine stored in the memory and implemented by the at least one processor for registering with a network function (NF) repository function (NRF) an NF profile corresponding to the NSMF, subscribing with the NRF for status updates corresponding to NF instances belonging to network slice instances created by the NSMF, receiving from the NRF a notification message including one or more network traffic load level updates for each of the NF instances, processing the one or more network traffic load level updates to generate network slice instance configuration information for at least one of the network slice instances, and providing the network slice instance configuration information to an NSSF that provides network slice selection assistance information (NSSAI) and network slice selection service to NFs seeking to access network slice services.