As DRA, ZXUN DSC processes diameter signaling, and supports centralized routing, policy binding, load balancing and boundary routing scenarios etc.
As STP, ZXUN DSC processes No.7 signaling, and supports central and edge routing of TDM STP and IP STP scenarios.
As SCP, ZXUN DSC processes HTTP signaling, supports centralized routing and load balancing scenarios, converges network signaling routing and simplifies networking.
As BSF, ZXUN DSC supports the 5GC policy session binding scenarios and routes multiple sessions of the same user to the same PCF for processing.
As SEPP, ZXUN DSC supports the 5GC border routing scenarios, and provides functions such as signaling encryption, signaling screening and topology hiding to enhance network security.
Diameter Routing Function
SS7 Routing Function
Diameter Signaling Screening Function
SS7 Signaling Screening Function
BSF (Binding Support Function) implements the PDU session binding function for 5G users. In BSF, each PDU session stores the session binding information including user ID, DNN, UE address (IP address or MAC address), and PCF address selected by SMF. It provides the PCF address query service for AF or NEF to ensure that the AF can identify the UE's service based on the UE address, so that the N5/Rx interface messages can be routed to the corresponding PCF for the PDU session of the UE.
SEPP provides the following functions for 5G signaling protection:
• Topology hiding
• Message filtering
• Confidentiality protection of parameters (such as SUPI), etc.