The Traffic Flow Template is used by GGSN (Gateway GPRS Support Node) to discriminate between different user payloads. The TFT incorporates packet filters such as QoS (Quality of Service), PDP Context and security. Using the packet filters the GGSN maps the incoming datagrams into the correct PDP Context. Note: The use of a TFT allows multiple PDP contexts to be associated with the same PDP address.
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