Summary

Constituting a hierarchical packet data network which can meet requirements of future packet based networks (FPBN), public packet telecom data networks (PTDN) provide efficient interworking mechanisms with other packet data networks (PDN), e.g., IP networks and other PTDNs. Recommendation ITU-T Y.2616 illustrates five typical PTDN interworking scenarios and relevant interworking frameworks, interworking mechanisms and corresponding interworking procedures on the data plane, control plane and management plane.