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IP-Based and IFL-Based TDF Subscribers Overview

Junos Subscriber Aware implements the Third-Generation Partnership Project (3GPP) traffic detection function (TDF), enabling subscriber-aware policy enforcement and traffic steering that is application-aware. Before a user’s data traffic can undergo TDF processing, a TDF subscriber session must be set up.

You can configure two types of TDF subscribers:

IP-Based Subscribers

IP-based subscriber sessions are initiated when Junos Subscriber Aware processes a RADIUS accounting start request for a potential subscriber from a gateway GPRS support node (GGSN), Packet Data Network Gateway (PGW), or broadband network gateway (BNG). An IP-based subscriber session is for one unique user IP address.

IFL-Based Subscribers

IFL-based subscriber sessions are initiated when you configure the TDF subscriber and assign it a set of interfaces. All traffic that the MX Series router receives on those interfaces shares the same IFL-based subscriber session.