Cisco Cisco ASR 5000
SGSN Support for IMSI Manager Scaling
Configuring Support for Multiple IMSI Managers ▀
SGSN Administration Guide, StarOS Release 18 ▄
Configuring Support for Multiple IMSI Managers
The following configuration command is used to configure the number of IMSIMGR tasks that are required
in the system:
in the system:
config
task facility imsimgr { avoid-sessmgr-broadcast | max <integer_value> | required-
sessmgr no_sess_mgrs | sessmgr-sessions-threshold high-watermark <high_value> low-
watermark <low_value> }
sessmgr no_sess_mgrs | sessmgr-sessions-threshold high-watermark <high_value> low-
watermark <low_value> }
end
Notes:
The keyword max denotes the number of IMSI managers spawned in the system. This keyword is supported only
on ASR5500 and VPC-DI platforms. A maximum of “4” IMSI Manager can be configured.
The default number of IMSI Managers supported is “4” on ASR5500 and VPC-DI platforms.
This is a boot-time configuration and should be added in the configuration file before any SGSN/MME related
configuration is created or any IMSI Manager is started. Run-time configuration of this CLI is not valid. Any
such attempt will result in the following error message being displayed:
such attempt will result in the following error message being displayed:
New config requires system restart to be effective. Please save config and
restart
restart
This configuration should be added in the configuration file and the system should be re-loaded to apply this new
configuration.
The
sgsn imsimgr
command in the Exec mode initiates audit for managing the SGSN's IMSI manager's (IMSIMgr)
IMSI table. The command is updated with a new keyword
instance
to extend support for multiple IMSI Managers.
The audit is initiated from only one specified instance of IMSI Manager at a time.
sgsn imsimgr { instance instance_id }{ add-recordimsi sessmgr instance sessmgr# | audit-
with sessmgr { all | instance sessmgr# } | remove-record imsi }
with sessmgr { all | instance sessmgr# } | remove-record imsi }
Verifying the Configuration
The feature configuration can be verified by executing the
show configuration
command, the number IMSI
Managers configured is displayed:
task facility imsimgr max 4