Summary

Supplement 41 to the ITU-T Y-series Recommendations describes use cases and deployment models of service function chaining. This Supplement also specifies requirements in order to support service function chaining in IP-based fixed and mobile networks.

Service function chaining determines the requisite service functions (SFs), based on context information and selects a proper service function chain that consists of the requisite SFs providing specific treatment of packets. Therefore, service provisioning can be rapid and flexible with high manageability.