Network Deployments And Network Interfaces; Network Deployments; Network Interfaces - Cisco ASR 5000 Administration Manual

▀ Product Overview

Network Deployments and Network Interfaces

This section describes deployment options and network interfaces supported by the eWAG.

Network Deployments

The eWAG can be deployed in any of the following ways:
 Stand-alone eWAG deployment on an ASR 5000 chassis.
 Combo eWAG + GGSN deployment on the same ASR 5000 chassis.
Important:
are available only for lab testing purposes.
 Combo eWAG + TTG deployment on the same ASR 5000 chassis.
 Combo eWAG + TTG + GGSN deployment on the same ASR 5000 chassis.
Important:
and Limitations

Network Interfaces

The Gn' reference point is located between the eWAG and the GGSN supporting GTPv1 and GTPv0 protocols. eWAG
supports GTP Path messages towards GGSN. Here, the eWAG acts as an SGSN and initiates the PDP Context Creation
procedure. For every UE, the eWAG creates one GTP tunnel with the GGSN. The UE's APN and IMSI are forwarded
to the GGSN in the Create PDP Context Request message. This APN is either the subscribed APN from the HLR for the
connecting user, or the locally configured default APN at the eWAG.
▄ Cisco ASR 5000 Enhanced Wireless Access Gateway Administration Guide
10
In this release, the following deployment options are not fully qualified and are not supported, these
For information on dependencies and limitations of these deployment options see the
section.
Enhanced Wireless Access Gateway Overview
Dependencies
OL-28188-02