intelligent Gb Routing System

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Descriptions

 

iGRS (intelligent Gb Routing System) is an intelligent Gb router. iGRS is inserted between the BSC and the SGSN to monitor and to route the Gb traffic. iGRS extracts the IMSI from the attach request message of a GPRS user to check his user type from the iPALIM. iGRS inquires the user type of an IMSI from the iPALIM through the iPi (iPALIM inquiry) interface. After knowing the iPALIM user type, iGRS will route the attach request to the corresponding SGSN according to the user type and location (Routing Area Identity). iGRS is transparent to the BSC and the SGSN.

 

The principle benefits of the iGRS include:

•Enable iPALIM to support GPRS.

•Aggregation of BSC Gb to enable sharing one SGSN Gb by multiple BSC.

•Redirect Hybrid Users to a particular GGSN by APN replacement. APN replacement function also enables Hybrid User to use the local GPRS service without changing the internet setting in his mobile device.

•Allow operator to apply the Captive Portal technique to redirect iPALIM users to special web page for local service promotion or GPRS service billing by payment gateway or curbing internet traffic.

 

 

See Also

 

•iGRS Parameter Dictionary

 

 

Feature List

 

Feature

Descriptions

Capacity

Gb interface:

•256 BSCs

•8 SGSNs

Subscriber:

•100k online GPRS users

Traffic:

•200k attach per hour

•200k RAU per hour

•200k PDP context activation/deactivation per hour

Interface

Gb interface to BSC and SGSN

SNMP interface to EMS (Element Management System)

Basic Services

Gb routing

•Mobile to GSN

•GSN to Mobile

•ID request

APN (Access Point Name) replacement

License Control

Application flag

1 to 256 BSC Gb in the increment of 1

1 to 8 SGSN Gb in the increment of 1

100 to 100k GPRS subscribers at multiples of 100

Operation and Maintenance

SNMP network management

IE browser client console

Web page based graphic user interface

Real time status display

System parameter maintenance

Organized call measurements and operation logs

 

 

iGRS Parameter Dictionary

 

Parameter

Definition

Range

System

--

--

•System ID

Specify the System ID of the iGRS.

0 - 255

•Primary PALIM IP

IP address of the master iPALIM connecting to iGRS.

Dotted decimal format

•Secondary PALIM IP

IP address of the slave iPALIM connecting to iGRS.

BSS

Create virtual connections between iGRS and BSS.

Max 256 items

•Administration State

(Read Only) Control the operation of the managed interface.

•Locked

•Unlocked

•SNS Type

Specify the type of subnetwork service sub-layer.

•IP

•Frame Relay

> NSE

Network Service Entity

1 item

•Administration State

(Read Only) The state of the current setting entry.

•Locked

•Unlocked

•NSEI

Specify network service entity identifier (NSEI) to identify the NSE.

0 - 65535

>> NSVC

Network Service Virtual Connection

Max 2 items

•Administration State

(Read Only) The state of the current setting entry.

•Locked

•Unlocked

•Blocking Status

(Read Only) The block status of the current setting entry.

•Blocked

•Unblocked

•Alive Status

(Read Only) The running status of the current setting entry.

•Alive

•Dead

•NSVCI

Specify network service virtual connection identifier (NSVCI) to identify the NSVC.

0 - 65535

•Local IP

IP address of the iGRS.

Dotted decimal format

•Local Port

iGRS transmission port for the virtual connection.

0 - 65535

•Peer IP

IP address of the BSS.

Dotted decimal format

•Peer Port

BSS transmission port for the virtual connection.

0 - 65535

SGSN

Create virtual connections between iGRS and SGSN.

Max 8 items

•Administration State

(Read Only) Control the operation of the managed interface.

•Locked

•Unlocked

•SNS Type

Type of subnetwork service.

•IP

•Frame Relay

> NSE

Network Service Entity

Max 255 items

•Administration State

(Read Only) The state of the current setting entry.

•Locked

•Unlocked

•NSEI

Specify network service entity identifier (NSEI) to identify the NSE.

0 - 65535

>> NSVC

Network Service Virtual Connection

Max 2 items

•Administration State

(Read Only) The state of the current setting entry.

•Locked

•Unlocked

•Blocking Status

(Read Only) The block status of the current setting entry.

•Blocked

•Unblocked

•Alive Status

(Read Only) The running status of the current setting entry.

•Alive

•Dead

•NSVCI

Specify network service virtual connection identifier (NSVCI) to identify the NSVC.

0 - 65535

•Local IP

IP address of the iGRS.

Dotted decimal format

•Local Port

iGRS transmission port for the virtual connection.

0 - 65535

•Peer IP

IP address of the SGSN.

Dotted decimal format

•Peer Port

SGSN transmission port for the virtual connection.

0 - 65535

Routing Area

--

Max 1024 items

•MCC

Mobile Country Code.

Numeric max 4 digits

•MNC

Mobile Network Code.

•LAC

Location Area Code.

0 - 65535

•RAC

The Routing Area Code identifies a routing area within the specific location area.

•Administration State

(Read Only) Control the operation of the managed routing area.

•Locked

•Unlocked

> Routing Table

--

--

•User Type

(Read Only) iPALIM user type.

•Private

•Public

•Hybrid

•Administration State

(Read Only) The state of the current setting entry.

•Locked

•Unlocked

•SGSN ID

Specify ID of the serving SGSN virtual connection.

0 - 7

•APN Replace Flag

Enable or disable replace the current access point name.

•Enable

•Disable

•APN

Specify the modified APN if the replace flag is enabled.

--

> BVC Mapping

BSSGP Virtual Connection

Max 16 items

•NSEI

Specify the value of Network Service Entity Identifier.

0 - 65535

•BVCI

Specify the value of BSSGP Virtual Connection Identifier.

•Administration State

(Read Only) The state of the current setting entry.

•Locked

•Unlocked

 

 

Return to

 

•Tasks List

 

•Elements List

 

 

 

 

 

2.1.1.17