Cisco Cisco IOS Software Release 12.4(2)XB6
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Cisco Packet Data Serving Node (PDSN) Release 4.1 for Cisco IOS Release 12.4(15)XR7
Cisco Packet Data Serving Node (PDSN) Release 4.1 for Cisco IOS Release 12.4(15)XR7
Feature Overview
A PDSN provides access to the Internet, intranets, and Wireless Application Protocol (WAP) servers for
mobile stations using a Code Division Multiple Access 2000 (CDMA2000) Radio Access Network
(RAN). The Cisco PDSN is a Cisco IOS software feature that runs on SAMI cards on the Cisco 7600
Internet Router, where it acts as an access gateway for Simple IP and Mobile IP stations. It provides
foreign agent (FA) support and packet transport for virtual private networking (VPN). It also acts as an
Authentication, Authorization, and Accounting (AAA) client.
mobile stations using a Code Division Multiple Access 2000 (CDMA2000) Radio Access Network
(RAN). The Cisco PDSN is a Cisco IOS software feature that runs on SAMI cards on the Cisco 7600
Internet Router, where it acts as an access gateway for Simple IP and Mobile IP stations. It provides
foreign agent (FA) support and packet transport for virtual private networking (VPN). It also acts as an
Authentication, Authorization, and Accounting (AAA) client.
The Cisco PDSN supports all relevant 3GPP2 standards, including those that define the overall structure
of a CDMA2000 network, and the interfaces between radio components and the PDSN.
of a CDMA2000 network, and the interfaces between radio components and the PDSN.
System Overview
CDMA is one of the standards for Mobile Station communication. A typical CDMA2000 network
includes terminal equipment, mobile termination, base transceiver stations (BTSs), base station
controllers (BSCs / PCFs), PDSNs, and other CDMA network and data network entities. The PDSN is
the interface between a BSC / PCF and a network router.
includes terminal equipment, mobile termination, base transceiver stations (BTSs), base station
controllers (BSCs / PCFs), PDSNs, and other CDMA network and data network entities. The PDSN is
the interface between a BSC / PCF and a network router.
illustrates the relationship of the components of a typical CDMA2000 network, including a
PDSN. In this illustration, a roaming mobile station user is receiving data services from a visited access
provider network, rather than from the mobile station user’s subscribed access provider network.
provider network, rather than from the mobile station user’s subscribed access provider network.
Figure 1
The CDMA Network
As the illustration shows, the mobile station, which must support either Simple IP or Mobile IP, connects
to a radio tower and BTS. The BTS connects to a BSC, which contains a component called the Packet
Control Function (PCF). The PCF communicates with the Cisco PDSN through an A10/A11 interface.
to a radio tower and BTS. The BTS connects to a BSC, which contains a component called the Packet
Control Function (PCF). The PCF communicates with the Cisco PDSN through an A10/A11 interface.
PDSN
RAN
Visited Access Provider Network
Mobile station
BTS
BSC
PCF
IP
Network
IP
Network
Visited
AAA
42689
Home ISP or Corporate
Private Network
Home AAA
Server
Home Agent
PDSN
RAN
Subscribed Access Provider Network
BTS
BSC
PCF
IP
Network
R-P Interface
AAA
Broker Network
Broker
AAA
R-P Interface