Cisco Cisco Packet Data Interworking Function (PDIF) Documentation Roadmaps
![Cisco](https://files.manualsbrain.com/attachments/7380d0050044647c30f5c24bbbf5d0c0b6d9bb84/common/fit/150/50/faa183d287233c52228cfea3dbc2a127fe780f60564fcb0955d9c3d1cd23/brand_logo.png)
HRPD Serving Gateway Overview
▀ Product Description
▄ Cisco ASR 5000 Series Product Overview
OL-22937-01
Figure 123. eHRPD Basic Network Topology
Internet
Enterprise
eAN/ePCF
A10/A11
SGi
eHRPD
S2a
Gxa
STa
S-GW
S1-U
S5/S8
S11
Gx
Gxc
S1-MME
eNodeB
S6a
MME
PCRF
3GPP
AAA
S6b
SWx
HSS
OFCS
Rf
Rf
S101
S103
P-GW
OCS
Gy
HSGW
Basic Features
Authentication
The HSGW supports the following authentication features: