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Cisco Prime Network 4.0 User Guide
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Chapter 25 Monitoring Mobile Technologies GPRS/UMTS Networks
Figure 25-1 Basic GPRS/UMTS Network Topology
The GPRS/UMTS packet core comprises two major network elements:
• Gateway GPRS support node (GGSN)—A gateway that provides mobile cell phone users access to
a Packet Data Network (PDN) or specified private Internet Protocol (IP) networks.
• Serving GPRS support node (SGSN)—Connects the radio access network (RAN ) to the
GPRS/UMTS core and tunnels user sessions to the GGSN. The SGSN sends dat a t o an d r ece ives
data from mobile stations, and maintains information about the location of a mobile station (MS).
The SGSN communicates directly with the MS and the GGSN.
PDNs are associated with Access Point Names (APNs) configur ed o n the system. Each APN consists of
a set of parameters that dictate how subscriber authentication and IP address assignment is to be handled
for that APN.
Prime Network Vision allows you to configure the mobile technologies by using commands and also
view the properties configured for the mobile technologies. Figure 25-2 shows an example of the
Inventory window with the mobile technology nodes/containers under the Mobile context.
From Prime Network 3.9, the mobile technologies are supported on Cisc o Ag gregati on Se rvic e
Router (ASR) 5000 series mobile gateways.