Cisco Cisco Packet Data Gateway (PDG) Documentation Roadmaps

Serving Gateway Overview

▀ Network Deployment(s)

▄ Cisco ASR 5000 Series Product Overview

OL-22937-01

Network Deployment(s)

This section describes the supported interfaces and the deployment scenarios of a Serving Gateway.

Serving Gateway in the E-UTRAN/EPC Network

The following figure displays a simplified network view of the S-GW and how it interconnects with other 3GPP
Evolved-UTRAN/Evolved Packet Core network devices.

Figure 172. S-GW in the E-UTRAN/EPC Network

Internet

SGi

E-UTRAN

EPC

S1-U

S5/S8

S11

Gxc

S1-MME

eNodeB

S6a

MME

PCRF

3GPP

AAA

S6b

SWx

HSS

Signaling Interface

Bearer Interface

OFCS

P-GW

OCS

S-GW

S2b

S2c

Enterprise

Trusted/Untristed

Non-3GPP Devices

Rf / Gz