Cisco Cisco Packet Data Gateway (PDG) Documentation Roadmaps
ASN Gateway Overview
▀ ASN Gateway in a WiMAX Network
▄ Cisco ASR 5000 Series Product Overview
OL-22938-01
Figure 40. ASN Network Reference Model with ASN Gateway
ASN Gateway
ASN
HA
H-AAA
Another CSN
R6
R6
R4
R3
R5
Network Service Privider
(NSP)
Network Access Privider
(NAP)
CSN
Another ASN/
ASN-GW
BS
BS
R8
Connectivity Service Network (CSN)
The Connectivity Service Network (CSN) is a set of network functions that provide IP connectivity services to the
WiMAX subscriber. A CSN provides the following functions:
WiMAX subscriber. A CSN provides the following functions:
SS/MS IP address and endpoint parameter allocation for user sessions
Internet access
AAA proxy or server
Policy and admission control based on user subscription profiles
ASN-CSN tunneling support,
WiMAX subscriber billing and inter-operator settlement
Inter-CSN tunneling for roaming
Inter-ASN mobility
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