What is BSF (binding support function)?

The BroadForward Binding Support Function (BroadForward BSF) empowers charging (PCF/CHF) scaling of the 5G network while guaranteeing session correlation for HTTP/2. The core function of the BSF is to follow sessions that are found anyplace in the network, however share common rules, like subscriber identifiers. It is utilized to track the limiting data and permitting systems to update and eliminate the limiting data.