Cisco ASR 5000 series Product Overview page 389

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Table of Contents

HRPD Serving Gateway Overview

Figure 105. HSGW Supported Network Interfaces

Signaling Interface

Bearer Interface

In support of both mobile and network originated subscriber PDP contexts, the HSGW provides the following network

This interface exists between the Evolved Access Network/Evolved Packet Control

Function (eAN/ePCF) and the HSGW and implements the A10 (signaling) and A11 (bearer) protocols defined in

3GPP2 specifications.

S2a Interface

This reference point supports the bearer interface by providing signaling and mobility support between a trusted non-

3GPP access point (HSGW) and the PDN Gateway. It is based on Proxy Mobile IP but also supports Client Mobile IPv4

FA mode which allows connectivity to trusted non-3GPP IP access points that do not support PMIP.

Supported protocols

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