Cisco ASR 5000 Series Product Overview â–„
Product Description
The PDN Gateway is the node that terminates the SGi interface towards the PDN. If a UE is accessing multiple PDNs,
there may be more than one P-GW for that UE. The P-GW provides connectivity to the UE to external packet data
networks by being the point of exit and entry of traffic for the UE. A UE may have simultaneous connectivity with more
than one P-GW for accessing multiple PDNs. The P-GW performs policy enforcement, packet filtering for each user,
charging support, lawful interception and packet screening.
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