SGSN Interface Management Configuration Mode

Mode

The interface management commands, accessed via the SGSN Global configuration mode, are applicable to the SGSN on a global level. They map the NSC/BSC to the SGSN's Gb interface and enable the operator to quickly configure lock or unlock for the BSC interface on the basis of the NSE's ID or name.

Exec > Global Configuration > SGSN Global Configuration > Interface Management Configuration

configure > sgsn-global > interface-management

Entering the above command sequence results in the following prompt: 

[local]host_name(config-sgsn-interface-mgmt)#

Important

The commands or keywords/variables that are available are dependent on platform type, product version, and installed license(s).

do show

Executes all show commands while in Configuration mode.

Product

All

Privilege

Security Administrator, Administrator

Syntax

do show

Usage Guidelines

Use this command to run all Exec mode show commands while in Configuration mode. It is not necessary to exit the Config mode to run a show command.

The pipe character | is only available if the command is valid in the Exec mode.


Caution

There are some Exec mode show commands which are too resource intensive to run from Config mode. These include: do show support collection , do show support details , do show support record and do show support summary . If there is a restriction on a specific show command, the following error message is displayed: 

Failure: Cannot execute 'do	show support' command from Config mode.

end

Exits the current configuration mode and returns to the Exec mode.

Product

SGSN

Privilege

Security Administrator, Administrator

Syntax

end

Usage Guidelines

Return to the Exec mode.

exit

Exits the current configuration mode and returns to the SGSN Global configuration mode.

Product

SGSN

Privilege

Security Administrator, Administrator

Syntax

exit

Usage Guidelines

Returns to the SGSN Global configuration mode.

interface

Maps the Gb interface to an NSE-ID and an NSE-name to facilitate the identification of the peer NSE/BSC.This command also allows the SGSN to configure the mapping between RNC-ID and RNC-NAME which allows the operator to associate rlf-template either by NAME or ID.

Product

SGSN

Privilege

Security Administrator, Administrator

Mode

Exec > Global Configuration > SGSN Global Configuration > Interface Management Configuration

configure > sgsn-global > interface-management

Entering the above command sequence results in the following prompt: 

[local]host_name(config-sgsn-interface-mgmt)#

Syntax

interface   {  gb peer-nsei id  | iu peer-rnc id }  { name  <value> | id  <value> }  
no interface {  gb peer-nsei id  | iu peer-rnc id }  { name  <value> | id  <value> }

no

Removes the interface mapping from the configuration.

The "No" option removes the mapping and action configuration from the SGSN and it resets the behavior to default for that RNC. By default, no throttling is done.

gb peer-nsei id id

Maps a specific peer NSE/BSC to the Gb interface by the NSEI.

id - Enter an integer from 0 to 65535.

gb peer-nsei name

Identifies a BSC by name assigned to the NSEI, which is stored in the SCT.

name - Enter an alphanumeric string of 1 to 64 characters.

iu peer-rnc id id

Maps a specific peer RNC-ID .

id - Enter an integer from 0 to 65535.

iu peer-rnc name

Maps a specific peer RNC-Name.

name - Enter an alphanumeric string of 1 to 64 characters.

Usage Guidelines

This command configures mapping between an NSE-ID and an NSE name and the SGSN's Gb interface. The mapping allows the operator to use the lock-interface command (also in this mode) to more easily configure locking or unlocking of the interface to the BSC by identifying the network service entity by ID or by name.

This command provides a configuration option to create a mapping for RNC to the interface name for the interface identifier which allows the operator to associate rlf-template either by using name or identifier.

Related Commands:

lock-interface

Examples

Map NSE with ID of 422 and the name Dover to the Gb interface: 
interface gb peer-nsei id 422 name Dover
The following example disables the mapping for NSEI 2321 : 
no interface gb peer-nsei id 2321

lock-interface

This command enables the operator to configure the SGSN's Gb interface, toward the peer NSE/BSC, as locked or unlocked on the basis of the NSE's name or identifier.

Product

SGSN

Privilege

Security Administrator, Administrator

Mode

Exec > Global Configuration > SGSN Global Configuration > Interface Management Configuration

configure > sgsn-global > interface-management

Entering the above command sequence results in the following prompt: 

[local]host_name(config-sgsn-interface-mgmt)#

Syntax

[ no ] lock-interface gb peer-nsei { id  nse-id | name  nse_name }

no

Disables a previously configured lock on the interface to the NSE/BSC.

peer-nsei id nsei_id

Specifies the numeric identifier of the network service entity mapped to the Gb interface.

nse_id - Enter an integer from 0 to 65535.

peer-nsei nsei_name

Specifies the name of the NSE associated with the BSC, which is stored in the SCT.

nse_id - Enter an alphanumeric string of 1 to 64 characters.

Usage Guidelines

This command allows the operator to lock/unlock the interface, towards the NSE/BSC, based on the NSE name or NSE identifier.

Lock is configured primarily to avoid the high CPU usage the SGSN can experience when BSCs attempt to reconnect after an SGSN reboot or reload. The lock stops the auto-learn procedure for the locked BSC connected via Gb over IP.

The auto-learn facility can be enabled in a staggered manner for each BSC after reboot/reload by unlocking the BSCs one-by-one.

The NSE unlock state is the default state and the NSE can accept or send any uplink and downlink data.

Related Commands:

interface

Examples

Lockout NSE/BSC ID 319 from the SGSN: 
lock-interface gb peer-nsei id 319

paging-rlf-template

This command allows the SGSN to associate the RLF template either at global level which limits the paging messages initiated across both 2G (NSE level) and 3G (RNC level) access or at per entity level either at RNC level for 3G access or at NSE level for 2G access.

Product

SGSN

Privilege

Security Administrator, Administrator

Mode

Exec > Global Configuration > SGSN Global Configuration > Interface Management Configuration

configure > sgsn-global > interface-management

Entering the above command sequence results in the following prompt: 

[local]host_name(config-sgsn-interface-mgmt)#

Syntax

[no] paging-rlf-template {template-name  <template-name>} {gb peer-nsei | iu peer-rnc} {name  <value> | id  <value>}

no

The "No" option removes the association of the rlf-template against the global level or at particular NSE/RNC.

template-name <template-name>

Specifies the template name.

gb peer-nsei id

Maps a specific peer NSE/BSC to the Gb interface by the NSEI.

id - Enter an integer from 0 to 65535.

gb peer-nsei name

Identifies a BSC by name assigned to the NSEI, which is stored in the SCT.

name - Enter an alphanumeric string of 1 to 64 characters.

iu peer-rnc id

Maps a specific peer RNC-ID .

id - Enter an integer from 0 to 65535.

iu peer-rnc name

Maps a specific peer RNC-Name.

name - Enter an alphanumeric string of 1 to 64 characters.

Usage Guidelines

This command helps to limit the paging load sent out from the SGSN as it consumes more bandwidth in the radio interface. The NSE/RNC level rlf-template association overrides the globally associated rlf-template which throttles the paging messages initiated from that NSE/RNC with the configured message rate. The actual RLF template can be configured under the global configuration mode which provides the option to configure the message-rate, burst-size, threshold and delay-tolerance for throttling or rate-limiting.

Examples

Use the following command to associate a RLF template with name "rlf1":

paging-rlf-template template-name rlf1