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25-37
Cisco Prime Network 4.0 User Guide
OL-29343-01
Chapter 25 Monitoring Mobile Technologies
GPRS/UMTS Networks
Viewing SGSN Service Properties
You can also view the following configuration details for SGSN service:
• GPRS Mobility Management—GPRS Mobility Management (GMM) is a GPRS signaling protocol
that handles mobility issues such as roaming, authentication, and selection of encryption algorithms.
GPRS Mobility Management, together with Session Management (GMM/SM) protocol support the
mobility of user terminal so that the SGSN can know the location of a mobile station (MS) at any
time and to activate, modify and deactivate the PDP sessions required by the MS for the user data
transfer. See GPRS Mobility Management Properties, page 25-37.
• NRI Properties—The Network Resource Identifier (NRI) identifies the specific CN node of the pool.
The UE derives the NRI from TMSI, P-TMSI, IMSI or IMEI. See NRI Properties, page 25-38.
• Session Management Properties—The SGSN service performs comprehensive session management,
including context activation, modification, deactivation, and preservation. It also provides support
for IPv4, IPv6, and PPP PDP context types. In addition, the SGSN's intelligent PDP context
preservation feature facilitates efficient radio resource utilization. See Session Management
Properties, page 25-39.
GPRS Mobility Management Properties
To view the GPRS Mobility Management details:
Step 1 Right-click the required device in Prime Network Vision and choose Inventory.
Step 2 In the logical inventory window, choose Logical Inventory > Context > Mobile > SGSN > GPRS
Mobility Management. The GPRS mobility details are displayed in the content pane.
Table 25-20 describes the SGSN service details.
Profile No. The type of billing.
Time (1 - 6) The time-of-day values at different times in a day, which is required to close
the current statistics container.
Table 25-19 SGSN Service Details (continued)
Field Description
Table 25-20 GPRS Mobility Management Details
Field Description
Max Identity Retries The maximum number of retransmissions allowed for identity requests. In
other words, it relates to the number of retransmissions allowed before
failure of the request. This number can be any value between 1 and 10.
Max Page Retries The maximum number of retransmissions allowed for page requests. In other
words, it relates to the number of retransmissions allowed before failure of
the request. This number can be any value between 1 and 5.
Max PTMSI Reloc
Retries
The maximum number of retransmissions allowed for P-TMSI relocation
procedure. In other words, it relates to the number of retransmissions
allowed before failure of the P-TMSI relocation procedure. This number can
be any value between 1 and 10.