> SGSN Pool Area Configuration Mode Commands
> The Pool Area configuration mode configures the parameters used to setup the VLRs to use with a pool area in a Gs service.
> With this mode, the command prompt will be similar to:
> [ctx_name]hostname(config-gs-pool-area)#
> Important: The commands or keywords/variables that are available are dependent on platform type, product version, and installed license(s).
> end
> Exits the current configuration mode and returns to the Exec mode.
> Product
> SGSN
> Privilege
> Security Administrator, Administrator
> Syntax
> end
> Usage
> Return to the Exec mode.
> exit
> Exits the current configuration mode and returns to the previous configuration mode.
> Product
> SGSN
> Privilege
> Security Administrator, Administrator
> Syntax
> exit
> Usage
> Return to the previous configuration mode.
> hash-value
> This command configures the load distribution for the VLRs that service this pool area.
> Product
> SGSN
> Privilege
> Security Administrator, Administrator
> Syntax
> hash-value { hash_value | non-configured-values | range start_value to end_value } use-vlr vlr_name
> no hash-value { hash_value | non-configured-values | range start_value to end_value }
> no
> Removes the configured Gs procedures from this Gs service.
> hash_value
> Specifies the specific hash value for VLR(s).
> hash_value must be an integer value from 0 through 999.
> range start_value to end_value
> Specifies the range of hash values for a VLR.
> start_value specifies the start value for range of hash and is an integer value from 0 through 999. start_value must be lower than end_value.
> end_value specifies the end value for range of hash and is an integer value from 0 through 999. end_value must be higher than start_value.
> non-configured-values
> This keyword assign all non-configured hash values to use the named VLR.
> use-vlr vlr_name
> Specifies the name of the VLR to be associated with this pool area.
> vlr_name is the name of VLR and must be an alpha and/or numeric string of 1 to 63 characters.
> Usage
> Use this command to command configures the load distribution for the VLRs that service this pool area as defined in TS 23.236.
> The algorithm for selection of VLR from a pool area is based on the hash value computed on the IMSI digits. The SGSN derives a hash value (V) using procedure as defined in TS 23.236. Every hash value from the range 0 to 999 corresponds to a single MSC/VLR node. Typically many hash values may point to the same MSC/VLR node.
> This command can be entered multiple times for different hash value.
> Example
> Following command configure the all non configured hash values to use VLR named starvlr1 in this pool area:
> hash-value non-configured-values use-vlr starvlr1
> lac
> This command defines a set of location area code (LAC) values for a pool area.
> Product
> SGSN
> Privilege
> Security Administrator, Administrator
> Syntax
> lac lac_id +
> no lac lac_id
> no
> Removes the configured LAC value from this pool area configuration.
> lac lac_id
> Specifies the subscribers’ location area code (LAC) to be associated with this pool area and a specific VLR. This LAC is obtained from the radio area identity (RAI).
> lac_id: Must be an integer from 1 through 65535.
> +
> More than one lac_id, separated by a space, can be entered within a single command.
> Usage
> Use this command to specify a set of LACs to use for a pool area.
> This command can be entered multiple times, subject to a limit of 32 LAC definitions (total for non-pool-area and pool-area configuration) per Gs service.
> Important: LAC values across multiple pool areas and non-pool-areas must be unique within the Gs service.
> Example
> The following command configures LACs 101, 301, and 222 for the pool area.
> lac 101 301 222

Cisco Systems Inc.
Tel: 408-526-4000
Fax: 408-527-0883