6
Configuring Services and Profiles
In this chapter:
• Configuring the GGSN/PGW Service
• Configuring Authentication Services
• Configuring HLR Services
• Configuring Diameter Services
• Configuring FTP Services
• Configuring Location Services
• Configuring an SMS Server
• Working with Profiles
In this chapter:
Configuring the GGSN/PGW Service
The controller has 3GPP defined Tunnel Terminating Gateway (TTG) functionality, which enables
it to act as a gateway between the UE (southbound) and the telecom core (northbound) to tunnel
traffic between the UE (user equipment, such as mobile phones).
The controller gateway terminates the tunnel, and then transfers the data over to GGSN (Gateway
GPRS serving node) implementing the Gn’ interface via GTPv1 (Release 6).
The Gn interface is used in controlling the signal between controller and GGSN as well as for
tunneling end user data payload within the backbone network between both the nodes.
GPRS Tunneling Protocol (GTP) transmits user data packets and signaling between controller
and GGSN. GTP encapsulates traffic and creates GTP tunnels, which act as virtual data channels
for transmission of packet data between the controller and GGSN. A GTP tunnel is established
between the controller and GGSN for a data session initiated from UE.
A GTP tunnel is identified by a pair of IP addresses and a pair of GTP Tunnel End Point Identifiers
(TEIDs), where one IP address and TEID is for the SGSN and the other is for GGSN. TEID is a
session identifier used by GTP protocol entities in SGSN and GGSN.
GTP separates signaling from payload. Traffic is sorted onto a control plane (GTP-C) for signaling
and a user plane (GTP-U) for user data. GTP-C is a tunnel control and management protocol
and is used to create, modify and delete tunnels. GTP-U is a tunneling mechanism that provides
a service for carrying user data packets.
Clicking Configuration > Services & Profiles on the main menu displays a sidebar on the left
side of the page, which includes GGSN Services. Figure 59 shows the GGSN Service
configuration page.
SmartCell Gateway 200/Virtual SmartZone High-Scale for Release 3.4.1 Administrator Guide
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