Cisco ASR 5000 series Product Overview page 342

Hide thumbs Also See for ASR 5000 series:

Table of Contents

▀ How GGSN Works

Figure 94. Corporate IP VPN Connectivity Call Flow

1. The Mobile Station (MS) goes through the process of attaching itself to the GPRS/UMTS network.

2. The MS sends an Activate PDP Context Request message that is received by an SGSN. The message contains

information about the subscriber such as the Network layer Service Access Point Identifier (NSAPI), PDP

Type, PDP Address, Access Point Name (APN), Quality of Service (QoS) requested, and PDP configuration

▄ Cisco ASR 5000 Series Product Overview

GGSN Support in GPRS/UMTS Wireless Data Services