Description: 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.