Cisco Cisco Packet Data Interworking Function (PDIF) Documentation Roadmaps
GGSN Support in GPRS/UMTS Wireless Data Services
▀ Features and Functionality - Optional Enhanced Feature Software
▄ Cisco ASR 5000 Series Product Overview
OL-22938-01
Figure 86. GRE Deployment Scenario
IPv4
Network
GRE Tunnel
Mobile
Node
GGSN
Corporate B
gateway
Corporate B
network
Corporate A
network
Corporate A
gateway
GRE Tunnel
Access
Network
Gx Interface Support
Gx interface support on the system enables the wireless operator to:
Implement differentiated service profiles for different subscribers