Cisco Cisco IOS Software Release 12.3(11)T
Cisco Mobile Wireless Home Agent Release 2.0
Cisco Home Agent Network
3
Cisco IOS Release 12.3(11)T
OL-3235-04
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.
The A10 interface is for user data and the A11 interface is for control messages. This interface is also
known as the RAN-to-PDSN (R-P) interface. For the Cisco Home Agent Release 1.2, you must use a
Fast Ethernet (FE) interface as the R-P interface on the Cisco 7200 platform, and a Giga Ethernet (GE)
interface on the Cisco Multi-Processor WAN Application Module (MWAM) platform.
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.
The A10 interface is for user data and the A11 interface is for control messages. This interface is also
known as the RAN-to-PDSN (R-P) interface. For the Cisco Home Agent Release 1.2, you must use a
Fast Ethernet (FE) interface as the R-P interface on the Cisco 7200 platform, and a Giga Ethernet (GE)
interface on the Cisco Multi-Processor WAN Application Module (MWAM) platform.
The IP networking between the PDSN and external data networks is through the PDSN-to-intranet/Internet
(P
(P
i
) interface. For the Cisco Home Agent, you can use either an FE or GE interface as the P
i
interface.
For “back office” connectivity, such as connections to a AAA server, the interface is media independent. Any
of the interfaces supported on the Cisco 7206 can be used to connect to these types of services, but we
recommends that you use either an FE or GE interface as the P
of the interfaces supported on the Cisco 7206 can be used to connect to these types of services, but we
recommends that you use either an FE or GE interface as the P
i
interface.
Cisco Home Agent Network
illustrates the functional elements in a typical CDMA2000 packet data system, and Cisco
products that are currently available to support this solution. The Home Agent, in conjunction with the
PDSN and Foreign Agent, allows a mobile station with Mobile IP client function, to access the Internet
or corporate intranet using Mobile IP-based service access. Mobile IP extends user mobility beyond the
coverage area of the current, serving PDSN/Foreign Agent. If another PDSN is allocated to the call
(following a handoff), the target PDSN performs a Mobile IP registration with the Home Agent; this
ensures that the same home address is allocated to the mobile station. Additionally, clients without a
Mobile IP client can also make use of these services by using the Proxy Mobile IP capability provided
by the PDSN.
PDSN and Foreign Agent, allows a mobile station with Mobile IP client function, to access the Internet
or corporate intranet using Mobile IP-based service access. Mobile IP extends user mobility beyond the
coverage area of the current, serving PDSN/Foreign Agent. If another PDSN is allocated to the call
(following a handoff), the target PDSN performs a Mobile IP registration with the Home Agent; this
ensures that the same home address is allocated to the mobile station. Additionally, clients without a
Mobile IP client can also make use of these services by using the Proxy Mobile IP capability provided
by the PDSN.
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