PDN Gateway Overview
▀ Network Deployment(s)
▄ Cisco ASR 5x00 Packet Data Network Gateway Administration Guide
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For more information on the Gy interface and online accounting, refer to
Gy Interface Support
in the
Features and
Functionality - Base Software
section of this chapter.
Gz Interface
The Gz reference interface enables offline accounting functions on the P-GW. The P-GW collects charging information
for each mobile subscriber UE pertaining to the radio network usage.
Supported protocols
:
Transport Layer: TCP
Network Layer: IPv4, IPv6
Data Link Layer: ARP
Physical Layer: Ethernet
Gn/Gp Interface
This reference point provides tunneling and management between the P-GW and the SGSN during handovers between
the EPS and 3GPP 2G and/or 3G networks (3GPP TS 29.060). For more information on the Gn/Gp interface, refer to
Gn/Gp Handoff Support
in the
Features and Functionality - Base Software
section of this chapter.
Supported protocols
Transport Layer: UDP, TCP
Tunneling: GTP: GTP-C (signaling channel)
Network Layer: IPv4, IPv6
Data Link Layer: ARP
Physical Layer: Ethernet
Rf Interface