Cisco Cisco ASR 5000
SGSN Service Configuration Procedures
2.5G SGSN Service Configuration ▀
SGSN Administration Guide, StarOS Release 18 ▄
2.5G SGSN Service Configuration
The following configuration steps must be completed to allow the system to operate in a 2.5G GPRS network.
The service handling the GPRS or 2.5G functions in the SGSN is called the “gprs-service”.
Step 1
Create all the contexts you will use in your configuration. Refer to the “System Element Configuration Procedures”
chapter in the System Administration Guide.
chapter in the System Administration Guide.
Step 2
Create and configure the Frame Relay interface(s) and Ethernet interface(s). Refer to the “System Element
Configuration Procedures” chapter in the System Administration Guide.
Configuration Procedures” chapter in the System Administration Guide.
Step 3
routing domain is not a standard SS7 concept. It is a concept specific to this platform which groups a set of SS7 feature
configuration together to facilitate the management of the SS7 connectivity resources for an SGSN service.
configuration together to facilitate the management of the SS7 connectivity resources for an SGSN service.
Step 4
Configure GTT. The GTT configuration is used to set rules for GTT and define the GTT databases. Follow the
procedure in
procedure in
Step 5
Configure SCCP-Networks. The purpose of an SCCP network is to isolate the higher protocol layers above SCCP and
the application itself from SS7 connectivity issues, as well as, to provide a place for global SCCP configuration specific
to SGSN services. Use the procedure in
the application itself from SS7 connectivity issues, as well as, to provide a place for global SCCP configuration specific
to SGSN services. Use the procedure in
Step 6
Configure MAP services. The MAP service configuration is used by the SGSN service to communicate with many of
the nodes on the narrow band-SS7 network part of the network such as HLR, EIR, GSM-SCF, GMLC and SMS-
GMSC/SMS-IWMSC. The purpose of having an isolated map configuration is to enable different application services to
use the map service to communicate with other map entities in the network. Use the procedure in
the nodes on the narrow band-SS7 network part of the network such as HLR, EIR, GSM-SCF, GMLC and SMS-
GMSC/SMS-IWMSC. The purpose of having an isolated map configuration is to enable different application services to
use the map service to communicate with other map entities in the network. Use the procedure in
Step 7
Configure SGTP. The SGTP service configures the parameters used for GTP Tunneling. At the minimum, interfaces for
GTP-C and GTP-U must be configured. Use the procedure in
GTP-C and GTP-U must be configured. Use the procedure in
Step 8
Configure the SGSN service. All the parameters specific to the operation of an SGSN are configured in the SGSN
service configuration mode. SGSN services use other configurations like MAP and IuPS to communicate with other
elements in the network. The system can support multiple gprs-services.
service configuration mode. SGSN services use other configurations like MAP and IuPS to communicate with other
elements in the network. The system can support multiple gprs-services.
Step 9
Configure the GPRS service. All of the parameters needed for the system to perform as a an SGSN in a GPRS network
are configured in the GPRS service. The GPRS service uses other configurations such as SGTP and MAP to
communicate with other network entities and setup communications between the BSS and the GGSN. Use the
procedure in
are configured in the GPRS service. The GPRS service uses other configurations such as SGTP and MAP to
communicate with other network entities and setup communications between the BSS and the GGSN. Use the
procedure in
Step 10 Configure the Network Service Entity Instance. This identifies the NSEI to use and associates it with a Network Service
Step 11 Configure DNS. This configuration enables domain name resolution and specifies the DNSs to use for lookup. Use the
Step 12 Configure GTPP Accounting. This configures GTPP-based accounting for subscriber PDP contexts. Use the procedure
Step 13 Configure Frame Relay DLCI paths and bind them to NSEI links as needed. Refer to Creating and Configuring Frame
Relay Interfaces and Ports in the System Administration Guide.