This MIB is an extension to the
CISCO-CDMA-PDSN-MIB. A CDMA
network supports wireless data
communication through 3G CDMA radio
access technology and 3G A10/A11
interface. PDSN acts as a foreign
agent that establishes, maintains
and terminates the link layer to a
mobile station.
The high level architecture of a third
generation CDMA network is shown below:
+========+=+ +====+ +=======+
| RAdio |P| | | Data | Home |
| Network|C|==A10/A11==|PDSN|===Core=|Network|
| (RAN) |F| Interface | |Network | |
+========+=+ +====+ (DCN)+=======+
/|\ Foreign Agent Home Agent
| (FA) (HA)
| Visited Access
| Provider Network
|
\|/
+========+
| Mobile |
| Station|
| (MS) |
+========+
The following diagram illustrates protocols
usage by the CDMA network elements:
MS=== RAN=== PDSN === DCN == Home Network
| | A10/A11 | |
| +=signaling==+ |
| | |
| +...L2TP/L2F |
tunnelling..+
| | |
+======== PPP ========+ |
| | |
| +..Mobile IP |
tunnelling.. +
| |
| |
| |
+=================Mobile IP===========+
| |
| |
+======================data===========+
The CDMA PDSN EXTENSION MIB provides
operational information for a CDMA
PDSN implementation.
The following areas are managed:
1) Global PDSN information. This area contains
generic information such as the number of
auxiliary connections per session, PDSN
IpAddress, system bandwidth etc.
2) PDSN session information. This area contains
details about PPP sessions maintained by the
PDSN router and other related information such
as flows or PCF.
3) Failure notification. This area contains
details of notifications sent to
network management applications in case
of session creation failure.
Acronyms and terms:
A10/A11 A10 interface is a virtual
interface interface used for
transporting data between
the RAN and the PDSN.
A11 interface is the signaling
protocol used for maintaining a
logical connection between
the RAN and PDSN.
CAC Call Admission Control
CDMA Code Division Multiple Access
DCN Data Core Network
DSCP Differentiated Services Code Point
GRE Generic Routing Encapsulation
HRPD High Rate Packet Data
MN Mobile Node
Mobile IP Protocol enhancements that allow
transparent routing of IP datagrams
to mobile nodes.
Refer to RFC 2002 for more details.
MS Mobile Station
NVSE Non Vendor Specific Extension
PCF Packet Control Function
PDSN Packet Data Serving Node
PPPoGRE Point-to-Point over
Generic Routing Encapsulation
PPPoHDLC Point-to-Point over
High Level Data Link Control
PDSN session A PPP connection between a MS and
the PDSN. One session may contain
one or multiple PDSN flows.
QOS Quality of Service
RAN/RN Radio Network
ROHC Robust Header Compression. Refer to
RFC 3095 for more details.
RP Radio Packet
RSVP Resource Reservation protocol
Simple IP IP routing used by a MS when MoIP
services are not needed
SO Service Option
TFT Traffic Flow Template.
