OWB091008(Slide)SGSN9810 V900R010C02 Iu Interface Data Configuration-20101105-B-V2.0

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SGSN9810 Iu Interface Data Configuration

ISSUE2.0

Copyright © 2010 Huawei Technologies Co., Ltd. All rights reserved. Page2

References

3GPP TS 25.413

3GPP TS 23.110

HUAWEI SGSN9810 Serving GPRS Support Node

Operation Manual Data Configuration


Objectives

Upon completion of this course, you will be able to:

Describe the protocol stack and main functions of the

Iu interface.

Configure the data for the Iu over Asynchronous

Transfer Mode (ATM) interface.

Configure the data for the Iu over Internet Protocol (IP)

interface.


Contents

1. Basic Concepts

2. Data Configuration for the Iu over ATM Interface

3. Data Configuration for the Iu over IP Interface


Iu Interface The Iu interface is located between the serving GPRS

support node (SGSN) and the radio network controller

(RNC). On a UMTS network, the Iu interface is mandatory.

The Iu interface protocol stack consists of the user plane

and control plane.

The Iu user plane uses the GPRS Tunneling Protocol-User Plane

(GTP-U) protocol.

The Iu interface control plane uses the broadband SS7 network.

The transmission over Iu interface can be based on ATM or

IP.


Iu Interface Protocol Stack

IPSSCOP

AAL5

SCTP

MTP3-B M3UA

SCCP

M3UA

RANAPIu UP Protocol Layer

Tra

nspo

rt N

etw

ork

Lay

er

Physical Layer

TransportUser

NetworkPlane

Control Plane User Plane

TransportUser

NetworkPlane

TransportNetwork

Control Plane

Rad

io N

etw

ork

Lay

er

AAL5

IP

UDP

GTP-U

Physical Layer

ATM Data Link

IP

SCTP

Data LinkATM

IP

UDP

GTP-USSCF-NNI


Protocols over the Iu Interface RANAP

The RANAP protocol is used to process signaling message

between the SGSN and the UTRAN and manage the GTP

connection over the Iu interface.

Broadband MTP

The broadband Message Transfer Part (MTP) is implemented by

the MTP3 User Adaptation (M3UA) or Message Transfer Part layer

3-broadband (MTP3B). The signaling messages of the upper layer

are routed and forwarded through broadband MTP.

GTP-U

The GTP-U protocol uses the tunnel to transmit signaling or user

data.


Boards Related to the Iu Interface

Iu Control Plane

RANAP SGP RANA

P

SGP

SCCP SCCP

MTP3B M3UA

SAAL SCTP

ATM/

PHY

PFP/

PFI

IP/L2/

L1

PFP/

PFI

Iu User Plane

GTP-U GTP+

PFP/

PFIUDP

IP

AAL5 L2

ATM/

PHY

L1


Contents

1. Basic Concepts

2. Data Configuration for the Iu over ATM

Interface

3. Data Configuration for the Iu over IP Interface


Iu over ATM

ATM backbone network

RANAP

SCCP

MTP3B

SAAL(AAL5)

ATM

GTP_U

UDP

IP

AAL5

ATM

RANAP

SCCP

MTP3B

SAAL(AAL5)

ATM

GTP_U

UDP

IP

AAL5

ATM

PVC exchange

IPOA

SAAL link

MTP3B link

PVC exchang

e


Negotiation Data

Board Subrack Slot Front/

back

Subboard

ECUECU 0 0/1

(Active/Standby)

Front

EPUEPU 0 12/13

(Active/Standby)

Front

PFIPFI 0 12/13 Back AIC/AICAIC/AIC

Board Active port Standby port Work mode

PFIPFI 0/12/0 0/13/0 Active/standby


Negotiation DataPVC traffic parameters

Item Service Type Peak Rate

User plane Uncertain rate 100000

Control plane Stationary rate 3708

User

plane SGSN RNC

IP address of the

user plane

217.164.95.65 100.1.1.1

IP address of IPoA 10.110.0.1/24 10.110.0.2/24

VPI/VCI 1/200


Negotiation Data

Control plane

SGSN RNC

PLMN ID 46000

RNC ID 1234

Signaling point code

(SPC)

A00 401

VPI/VCI of MTP3B link1 1/100

VPI/VCI of MTP3B link2 1/101

SLC of MTP3B link1 0

SLC of MTP3B link2 1


Configuration Steps

Step Operation

Performed on the CGP or SGSN Command

1Configure the

ECU. CGP ADD BRD

2Add ECU-related process groups. SGSN ADD PROCESSGRP

3 Activate the port. CGP ACT PORT

Configuring Boards and Optical InterfacesConfiguring Boards and Optical Interfaces


Configuration Steps

Step Operation Command

Set signaling attributes.

4Set the signaling attributes for the

SGSN. SET SIGATTR

Set the MTP3B attributes.

5Configure an MTP3B originating

signaling point code (OPC). ADD MTP3BOPC

6Configure an MTP3B destination

signaling point code (DPC). ADD MTP3BDPC

7 Configure an MTP3B link set. ADD MTP3BLKS

8Configure an MTP3B signaling

route. ADD MTP3BRT

9 (Optional) Set traffic parameters. ADD TRAFFIC

10 Configure an MTP3B signaling link. ADD MTP3BLNK

11 (Optional) Set the MTP3B timer. SET MTP3BTMR

Configuring Control PlaneConfiguring Control Plane


Configuration StepsStep Operation Command

Configure the signaling connection control part (SCCP).

12 Configure an OPC of the SCCP. ADD SCCPOPC

13 Configure a DPC of the SCCP. ADD SCCPDPC

14Configure the subsystem

number of the SCCP. ADD SCCPSSN

Configure the RNC.

15 Configure the RNC information. ADD RNC

16 Configure the 3G paging table. ADD IUPAGING

17

Configure the mapping between the RNC and the

EPU ADD RNCPFLNK


Configuration Steps

Step Operation Command

18Set the IP address for

the Iu interface. ADD IFIP

19 (Optional) Set traffic parameters. ADD TRAFFIC

20Configure an IPoA link destined for the RNC. ADD IPOA

21Configure the route to the RNC user plane. ADD IPRT

22 (Optional)

Configure the mapping between the RNC and

the UGFU. ADD RNCPFLNK

Configuring User PlaneConfiguring User Plane


Step 1: Configure the ECU

ADD BRD:

Configure the ECU

Example

ADD BRD: SRN=0, SN=0, METYPE=SGSN,

FBRDHTYP=UPBA3, APPTYPE=ECU;


FBRDHTYP=UPBA3, APPTYPE=ECU;


Step 2: Add ECU-related Process Groups

ADD PROCESSGRP:

Set the two ECUs at SRN 0 and SN 0, and SRN 0 and SN

1 to operate in active/standby mode, and then add

related process groups on the ECUs.

ADD PROCESSGRP: SRN=0, SN=0, PSN=1,

PROCGRP=ECUGP_8;


Configure the EPU Board

ADD BRD: Configure the EPI, the PFI in the back slot, and the relevant

subboards.


FBRDHTYP=MSPB0, BBRDHTYP=PFIA0, APPTYPE=EPU,

BUPDBRDTYPE=AIC, BDOWNDBRDTYPE=AIC;


FBRDHTYP=MSPB0, BBRDHTYP=PFIA0, APPTYPE=EPU,

BUPDBRDTYPE=AIC, BDOWNDBRDTYPE=AIC;

ADD BRDIP: SRN=0, SN=12, MSTYPE=PRIMARY,

IPT=IPV4, IPV4="217.164.95.65";


Add EPU-related Process Groups ADD PROCESSGRP:

Set the two EPUs at SRN 0 and SN 12, and SRN 0 and

SN 13 to active and standby, and add EPU-related

process groups on the EPU.

ADD PROCESSGRP: SRN=0, SN=12, PSN=13,

PROCGRP=EPUGP;


Step 3: Activate the Port

ACT PORT:

Activate the port of the SRN 0 and SN 12, and SRN0 and SN 13.

ACT PORT: SRN=0, SN=12, PORTID=1;

ACT PORT: SRN=0, SN=13, PORTID=1;

MOD PORT:

MOD PORT: SRN=0, SN=12, PORTID=1,

PORTTYPE=ATM, PEERSN=13, PEERPID=1,

FRAMEFMT=SDH;


Planning the IP Address for the Iu Interface

Optical cable Logical IP

217.164.95.65

10.110.0.1/2410.110.0.2/24

IPoA link

RNC SGSN

100.1.1.1


Step 4: Configure the Signaling Attributes for the Iu Interface SET SIGATTR

Set or modify the signaling attributes of the local

office.

The attributes of the signaling network determine the

signaling attributes supported by the local office.

Example

SET SIGATTR: IF=INVALID, IRF=INVALID,

NF=LABEL24, NRF=LABEL14, BSSAPPF=ENABLE,

SS7T=ITUT_SS7;


Step 5: Configure the OPC for the SGSN ADD MTP3BOPC

This command is used to add MTP3B OPCs of the local

office.

ADD MTP3BOPC: OPX=1, NI=NATB, OPC="A00",

OPN="SGSN9810 Iu interface";


ADD MTP3BDPC

Add the MTP3B DPC.

ADD MTP3BDPC: DPX=0, OPX=0, DPC="401",

SLSSM=B0000, STPF=DISABLE, ADJF=TRUE,

DPN="RNC Iu Interface";

Step 6: Configure the DPC for the RNC


Step 7: Configure the Signaling Link Set

ADD MTP3BLKS

Configure the MTP3B signaling link set between the

SGSN and the RNC.

ADD MTP3BLKS: LSX=1, DPX=1, SLSM=B0000;


Step 8: Configure the MTP3B Signaling Route

ADD MTP3BRT

Configure the MTP3B signaling route between the

SGSN and the RNC.

ADD MTP3BRT: RTX=1, DPX=1, LSX=1;


Step 9: Configure the traffic information for the IPoA link ADD TRAFFIC

Add an entry about the IPoA link traffic. The IPoA links of the user plane and control

plane over the Iu interface use different types of QoS. This command must be executed before the MTP3B link is configured.

ADD TRAFFIC: IDX=30, SC=RTVBR, PCR=3113, SCR=2594, MBS=1000, CDVT=10240;


ATM Traffic Classes


Step 10: Configure the MTP3B Link ADD MTP3BLNK

Configure the signaling link between the SGSN9810 and the RNC.

When the configuration of this command takes effect, the SGSN9810 generates an SAAL link. An SAAL link corresponds to an MTP3B link.

Example ADD MTP3BLNK: LNK=1, IFSRN=0, IFSN=12,

IFPORT=0, PVPI=1, PVCI=100, SRN=0, SN=2, PRN=0, LSX=1, SLC=0, STRAFI=30;


Step 11: Configure the MTP3B Timer SET MTP3BTMR

The default value is recommended.

If the default value is used, this command need not be

configured.


Step 12: Configure the OPC of the SCCP ADD SCCPOPC

Configure the OPC of the SCCP for the SGSN.

ADD SCCPOPC: OPX=1, NI=NATB,

OPC="a00", SPN=IUONLY;


Step 13: Configure the DPC of the SCCP ADD SCCPDPC

Configure the DPC of the SCCP for the SGSN.

The DPC of the SCCP must be the signaling

point that is defined in the MTP3B layer.

ADD SCCPDPC: DPX=1, OPX=1,

DPC="A00", LDP=nouse, DPN="RNC";


Step 14: Configure the subsystem number of the SCCP ADD SCCPSSN

Configure the subsystem number related to the Iu interface for the SGSN.

ADD SCCPSSN: SSNX=1, SSN=SCMG, NI=NATB, DPC="401", OPC="A00", SSNNAME="scmg";

ADD SCCPSSN: SSNX=2, SSN=RANAP, NI=NATB, DPC="401", OPC="A00", SSNNAME="RANAP";

Note: SSN is the user of the MTP3B.

SCMG: SCCP management subsystem

RANAP: radio access network application part subsystem


Step 15: Configure RNC information. ADD RNC

Configure the RNC information.

ADD RNC: RNCX=1, RNCMCC="460",

RNCMNC="00", RNCID=1234, NI=NATB,

SPC="401";


Step 16: Configure the 3G paging table. ADD IUPAGING

This command is used to configure the information

about the paging. The SGSN searches for the specific

RNC based on the information, and then sends paging

to the RNC through signaling.

Example:

ADD IUPAGING: LAI="460001234", RAC="01",

RNCINDEX=1;


Step 17: Add relation link of RNC and EPU

add a direct user plane IP link between the RNC and

the EPU. "Direct" means the link does not need to

be routed by other EPU.

ADD RNCPFLNK


Step 18: Set the IP address for the user plane of the Iu interface. ADD IFIP

This command is used to configure the IP

addresses for both the active port and sub-

interface on the EPU board.

ADD IFIP: SRN=0, SN=12, PN=0, IPT=PRI,

IP="10.110.0.1", MSK="255.255.255.0",

DESC="interface to RNC1";

EPU

IPOAIP1 IP2

IP4IP3

RNC SGSN


Step 19: Define the IPoA link traffic on the user plane.

ADD TRAFFIC

Add a traffic record related to the IPoA link. The IPoA

links of the user plane and control plane of the Iu

interface use different types of QoS.

Example:

ADD TRAFFIC: IDX=30, SC=UBR, PCR=351416,

CDVT=10240;


Step 20: Configure the IPoA link. ADD IPOA

Configure the IPoA link for the user plane of the Iu interface.

ADD IPOA: SRN=0, SN=12, PN=0, VPI=1, VCI=200,

TP=STATIC_MAP, IP="10.110.0.2", TRAF=30, QOS=0;


Step 21: Configure an IP route.

ADD IPRT

Configure the IPoA route for the user plane of the Iu

interface.

ADD IPRT: IP="100.1.1.1", MSK="255.255.0.0",

GATE="10.110.0.2", PRE=60;


Checking the Control Plane Status MTP3B link status

DSP MTP3BLNK: SRT=ALL;

SCCP DPC status

DSP SCCPDPC: SSNX=2, NI=NATB, DPC="401",

SSN=RANAP;

SCCP subsystem status

DSP SCCPSSN: SSNX=2, NI=NATB, DPC="401",

SSN=RANAP;


Checking the User Plane Status

The DSP GTPPATH command is used to

display the user plane status.

DSP GTPPATH: GTPPATHTYPE=GTPU,

SUBRACKNO=0, SLOTNO=12, PATHINTFTYPE=GU,

IPTYPE=IPV4, PEERIPV4ADDR="100.1.1.1";


Contents

1. Basic Concepts

2. Data Configuration for the Iu over ATM

Interface

3. Data Configuration for the Iu over IP

Interface


Iu over IP

IPIP

RNANP

SCCP

M3UA

SCTP

IP

GTP_U

UDP

IP

RNANP

SCCP

M3UA

SCTP

IP

GTP_U

UDP

IP

M3UA link

IPIP


Iu over IP Network

Ethernet interfaceLogical IP

address

10.110.0.1/2410.10.10.2/24

100.1.1.1

RNC SGSN

RR

10.110.0.3/24

DPC=3333

IP address of the signaling

plane = 10.11.12.12

OPC=1111

SGP

l M3UAl IP=10.10.12.14l GTP-U:

217.164.95.65

EPU ECU


Configuration Procedure

Step Description Command

Configure the hardware and ports.

1

Configure board ADD BRD

Configure process group ADD PROCESSGRP

configure IP address ADD IFIP

Set port property MOD PORT

Act port ACT PORT

Configure M3UA

2Set the IP address for the EPU board.

ADD BRDIP

3 Add the M3UA local entity. ADD M3LE



Step

Description Command

Configure M3UA.

4Add the M3UA destination

entity.ADD M3DE

5Add the M3UA signaling link

set.ADD M3LKS

6 Add the M3UA signaling route. ADD M3RT

7 Add the M3UA signaling link. ADD M3LNK

8Add the IP route to the

destination entity.ADD IPRT


Configuration ProcedureStep Purpose Command

Configure the SCCP layer.

9 Add the SCCP OPC. ADD SCCPOPC

10 Add the SCCP DPC. ADD SCCPDPC

11 Add the SCCP subsystem. ADD SCCPSSN

Configure the RNC.

12 Add the RNC information. ADD RNC

13 Add the 3G paging table. ADD IUPAGING

14Configure the mapping

between the RNC and the EPU

ADD RNCPFLNK



Step Purpose CommandConfigure the user plane information.

15(Optional)

Configure the UPIU port on the user plane.

ADD IFIPACT PORT

16 Add routes. ADD IPRT

17Configure the GTPU IP

addressADD

BINDGTPUIP


Step 1: Configure the Hardware ADD BRD

Add the ECU, EPU, or PFI.

ADD PROCESSGRP Add the process group on the ECU and EPU. Refer to the

information about Iu over ATM.

ADD IFIP Configure the interface IP address of PFI.

MOD PORT, ACT PORT Set the Ethernet port type and activate the port.


Step 2: Set the IP address for the EPU board

ADD BRDIP

This command is used to set the IP address for the

EPU. This IP address is used to set up the M3UA link.

ADD BRDIP: SRN=0, SN=12, IPT=IPV4,

IPV4="10.10.12.14";


Steps 3 and 4: Configure the local entity and destination entity. ADD M3LE

Configure the local entity.

ADD M3LE: LEX=0, NI=NATB, OPC="1111", LET=IPSP;

ADD M3DE

Configure the destination entity.

ADD M3DE: DEX=0, LEX=0, DPC="3333",

SLSSM=B0000, DET=IPSP, ADJF=TRUE,

PVER=RFC3332, DEN="rnc";


M3UA Entity Type

M3UA link

IPSPIPSP

SGSN HLR

M3UA link

SGPASP

SGSN HLRSGMTP3 link

SP


Steps 5 and 6: Configure the link set and route.

ADD M3LKS

Configure the link set.

ADD M3LKS: LSX=0, ADX=0, SLSM=B0000,

WM=IPSP, TM=LOADSHARE, LSN="LINKSET1";

ADD M3RT

Configure the M3UA route.

ADD M3RT: RTX=0, DEX=0, LSX=0, PRI=0,

RTN="TO rnc";


Step 7: Configure the M3UA link. ADD M3LNK

Configure the M3UA link.

ADD M3LNK: SRN=0, SN=2, PN=0, LNK=0,

IPT=IPV4, LOCIPV41="10.10.12.14",

LOCPORT=2096, PEERIPV41="10.11.12.12",

PEERPORT=2907, CS=C, LSX=0, LKN="link 1",

CHKSUMTYPE=CRC32;


Step 8: Configure the IP route for the control plane.

ADD IPRT

Configure the IP route for the control plane.

ADD IPRT: IP="10.11.12.12", MSK="255.255.255.0",

GATE="10.110.0.3";


Step 9 through Step 13

Step 9 through Step 13 are used to configure

the SCCP layer. The configuration procedure is

the same as that for the Iu over ATM interface.


Step 14: Add relation link of RNC and EPU

add a direct user plane IP link between the RNC and

the EPU. "Direct" means the link does not need to

be routed by other EPU.

ADD RNCPFLNK


Step 15: Configure the PFI port on the user plane. If the user plane and control plane use different

physical Ethernet ports, the following commands are

required to configure the port information and

interface IP address for the user plane.

ACT PORT

ADD IFIP

In this example, the user plane and control plane use

the same port.


Step 16: Configure the route on the user plane.

ADD IPRT

Configure the route on the user plane.

ADD IPRT: IP="100.1.1.1", MSK="255.255.255.0",

GATE="10.110.0.3";


Step 17: Configure the GTPU IP address

ADD BINDGTPUIP

Add IP address of a board to serve as the IP address of

the GTP user plane.

ADD BINDGTPUIP: IPT=IPV4, IPV4=" 10.10.12.14 ",

ITFDRT=IUPS;


Iu over IP Interface Status Checking Check the control plane status.

DSP M3DE: DEX=1;

DSP M3RT: RTX=1;

DSP M3LNK: SRT=LINK, SRN=0, SN=13, LNK=0;

DSP SCCPDPC: DPX=1;

DSP SCCPSSN: SSNX=2, NI=NATB, DPC="401", SSN=RANAP;

Check the user plane status.

TST GTPPATH: GTPPATHTYPE=GTPU, PATHINTFTYPE=GU,

IPTYPE=IPV4, LOCIPV4ADDR="217.164.95.65",

PEERIPV4ADDR="100.1.1.1";

Thank youwww.huawei.com

OWB091008(Slide)SGSN9810 V900R010C02 Iu Interface Data Configuration-20101105-B-V2.0

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