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Understanding the Definition of a Set of IFL-Based Subscriber Properties with a TDF Domain

A traffic detection function (TDF) domain identifies a set of properties for the IFL-based subscribers configured in the TDF domain. You can create several TDF domains if you have multiple categories of subscribers. Multiple subscribers can be assigned to the same TDF domain.

TDF domains include the following information:

  • Logical interface-based type of subscriber.

  • Name of each subscriber.

  • Interfaces that belong to a subscriber. An interface can belong to only one subscriber.

  • The TDF logical interface (mif) that handles the subscriber traffic. A TDF interface is distinct from other types of interfaces and is used to associate a TDF domain’s subscribers with an access interface in a virtual routing and forwarding table (VRF). The TDF logical interface also identifies the TDF service set that is applied to the traffic.

  • The PCEF profile that must be applied to the TDF subscriber. The PCEF profile specifies how to apply policy and charging rules to the TDF subscriber traffic.

  • Source IP addresses for uplink traffic and destination IP addresses for downlink traffic you do not want to undergo TDF processing.