0WB080003(slide)SGSN9810 V800 (UAG)Hardware System-20090228-B-V2.0
OWB091009(Slide)SGSN9810 V900R010C02 Gb Interface Data Configuration-20101105-B-V2.0
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Transcript of OWB091009(Slide)SGSN9810 V900R010C02 Gb Interface Data Configuration-20101105-B-V2.0
www.huawei.com
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
Gb Interface Data Configuration
ISSUE2.0
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page2
References 3GPP TS 48.016
SGSN9810 Configuration Guide
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page3
Contents
1. Basic Concepts
2. Data Configuration for Gb over FR3. Data Configuration for Gb over IP
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page4
Introduction to the Gb Interface Gb is the interface between the SGSN and the PCU.
Gb is a mandatory interface on the GPRS network.
Gb consists of the user plane and control plane.
The control plane is used for resource allocation and access
control.
The user plane is used for transparent transmission of user
data.
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page5
Protocol Stack of the Gb Interface in the Signaling Plane The protocol stack of the Gb interface in the user plane
consists of GMM/SM, LLC, BSSGP, NS, and L1bis.
Um Gb SGSNMS
GMM/SM
LLC
RLC
MAC
GSM RF
NetworkService
RLC
MAC
GSM RF
BSSGP
L1bis
Relay
BSS
GMM/SM
LLC
BSSGP
L1bis
NetworkService
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page6
Protocol Stack of the Gb Interface in the User Plane The protocol stack of the Gb interface in the signaling plane
consists of SNDCP, LLC, BSSGP, NS, and L1bis.
Um Gb Gn GiSGSN GGSN
Application
MS
IP
SNDCP
LLC
RLC
MAC
GSM RF
NetworkService
RLC
MAC
GSM RF
BSSGP
L1bis
Relay
BSS
Relay
GTP-USNDCP
LLC
BSSGP
L1bis
L2
L1
IP
NetworkService
UDP
L2
L1
IP
GTP -U
IP
UDP
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page7
BC
•SGSN:NS
E1
E1 1TS0~TS31
•BSS:
NSE1
•TS3•TS2•TS1
BC1(TS1~TS3)
BC2(TS4~TS6)
NSVC 1
NSVC 2
NSVC 3
NSVC 4•TS6
•TS4•TS5
A BC corresponds to a timeslot group in an E1/T1 link and is the bearer channel on the frame relay network (FRN).
A BC can contain multiple NSVCs.
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page8
Concepts Related to the Gb Interface
Gb BSS
LLC
BSSGP
L1
SGSN
NS
L1
MAC
BSSGP RLC
RELAY
NS
Sub-Network Service / Sub-Network Service protocol
Network Service Control / Network Service Control protocol
Network Service
The 3GPP protocol defines that the NS sublayers use the FR or IP network as the bearer network.
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page9
NSVC and PVC The NS layer consists of the following sublayers:
Network service control sublayer: User data is transmitted on the NSVCs in load-sharing mode.
Subnet service sublayer: It runs the FR protocol and uses PVCs for transmission.
One NSVC corresponds to one PVC.
NSVCINSVCI
PVCPVC
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page10
Relation Between the BVC, Cell, and NSE An NSE provides one signaling BVC and multiple PTP BVCs.
The signaling BVC manages the cells of the NSE and the ID of the signaling BVC is 0.
The PTP BVC is used for transmission.
SGSGSNSN
(BVCI 1-4)(BVCI 1-4)
GGbb
(BVCI 5-8)(BVCI 5-8)
NSEI-1NSEI-1
NSEI-2NSEI-2
BVC = BVCI + NSEI
BBSSCC
BVCI 6BVCI 6BVCI 5BVCI 5
BVCI 7BVCI 7
BVCI 8BVCI 8
BBSSCC
BVCI 2BVCI 2BVCI 1BVCI 1
BVCI 3BVCI 3
BVCI 4BVCI 4
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page11
Contents
1. Basic Concepts 2. Data Configuration for Gb over FR
3. Data Configuration for Gb over IP
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page12
SGSN and PCU Negotiation Data
NSE
NSVC NSVC NSVC
DLCI DLCI DLCI
BC BC
E1
1:N
1:1
N:1
N:1
NSVC
DLCI
BC
E1
SGSN and PCU negotiation data: NSE, NSVC, DLCI, and timeslot
The BC ID on the SGSN can be different from the BC ID on the PCU. The BC ID must be unique on an Et/T1 port.
BSSGP layerBSSGP layer
NS layerNS layer
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page13
NSE Configuration Guidelines An NSE manages a group of NSVCs.
If all NSVCs to a PCU are grouped together, one NSE is required and the group of NSVCs must be configured in one subrack.
If the NSVCs to a PCU are divided into multiple groups, multiple NSEs are required.
The NSE configuration must be bound to a specific ECU. NSEs must be configured equally on different ECUs. The NSE ID must not be 0.
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page14
NSVC Configuration Guidelines An NSVC must be configured on the same ECU with the BC to be used
by the NSVC. If multiple boards in the back slots of ECUs all have available BCs, configure
the NSVCs of an NSE on different ECU for load balancing among boards. If only one board in the back slot of an ECU has available BCs, configure the
NSVCs on different GBP processes on the ECU for load balancing among processes.
PCU1PCU1 PCU2PCU2
EECCUU
EECCUU
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page15
Gb over FR Related Hardware
MM/SM/SNDCP ECU SPP process
LLC
BSSGP
NS
FR
Physical Layer ETI
ECU LLP processECU LLP process
ECU GBP processECU GBP process
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page16
Gb over FR Networking Example
NSEI=1
BSS1
BSS2
460010001010001
460010001010002
460010001010003
460010002010001
460010002010002
460010002010003
Port 0
Port 1
1
2
34
SGSNSGSN
ECU
ECU
ECU
ETI
ETI
ETI0/0
0/1
0/2
TS=1-10,DLCI=100, NSVCI=11
Port 1
Port 0
TS=2-17,DLCI=100, NSVCI=22NSEI=2
TS=1-9,DLCI=100,
NSVCI=12
TS=4-20,DLCI=100, NSVCI=21
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page17
Networking Data
Link Link No.No.
SubracSubrack No.k No.
Slot Slot No.No.
PorPort t
No.No.
BCIBCIDD
TimesTimeslotlot
DLDLCICI
NSVCNSVCII
NSEINSEI BSSID
1 0 0 0 0 1~10 100 11 1 BSS1
2 0 0 1 0 4~20 100 21 2 BSS2
3 0 1 0 0 1~9 100 12 1 BSS1
4 0 1 1 0 2~17 100 22 2 BSS2
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page18
Configuration Procedure
Step Action Performed LMT Command
1 Add related boards. CGP ADD BRD
2 Add related process groups. SGSN ADD
PROCESSGRP
3 Set information about the ETI. CGP SET ETICFG
4 Set information about the
E1/T1 port.CGP SET ET1PORT
5 Add BCs. SGSN ADD BC
6 Add NSVCs. SGSN ADD NSVC
7 Add NSEs. SGSN ADD NSE
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page19
Step 1: Add Related Boards
ADD BRD: ADD BRD: SRN=0, SN=0, METYPE=SGSN,
FBRDHTYP=UPBA3, BBRDHTYP=ETIA0, APPTYPE=ECU;
ADD BRD: SRN=0, SN=1, METYPE=SGSN,
FBRDHTYP=UPBA3, BBRDHTYP=ETIA0, APPTYPE=ECU;
ADD BRD: SRN=0, SN=2, METYPE=SGSN,
FBRDHTYP=UPBA3, BBRDHTYP=ETIA0, APPTYPE=ECU;
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page20
Step 3: Set the ETI SET ETICFG:
This command is used to set the TDM type and impedance of the ETI in the configuration database.
For example: SET ETICFG: SRN=0, SN=0, CFGTDMTYPE=E1,
E1IMPED=E1_75ohm, CFGAPPMODE=FR;
SET ETICFG: SRN=0, SN=1, CFGTDMTYPE=E1, E1IMPED=E1_75ohm, CFGAPPMODE=FR;
SET ETICFG: SRN=0, SN=2, CFGTDMTYPE=E1, E1IMPED=E1_75ohm, CFGAPPMODE=FR;
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page21
Step 4: Set E1/T1 Port
SET ET1PORT:
This command is used to set the attributes of an E1/T1 port in
the configuration database.
For example: SET ET1PORT: SRN=0, SN=0, STRPORTID=1, ENDPORTID=31,
CFGTDMTYPE=E1, CFGE1FRM=DF, CFGE1ENC=HDB3; SET ET1PORT: SRN=0, SN=1, STRPORTID=1, ENDPORTID=31,
CFGTDMTYPE=E1, CFGE1FRM=DF, CFGE1ENC=HDB3; SET ET1PORT: SRN=0, SN=2, STRPORTID=1, ENDPORTID=31,
CFGTDMTYPE=E1, CFGE1FRM=DF, CFGE1ENC=HDB3;
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page22
Step 5: Configure the BC ADD BC:
This command is used to configure the BC.
ADD BC: SRN=0, SN=0, PRON=0, PN=0, BCID=0, BTS=1, ETS=10,
DLCIT=1, PROTOCOL=Q933, BWCNTL=NO, BCMODE=DCE;
ADD BC: SRN=0, SN=0, PRON=1, PN=1, BCID=0, BTS=4, ETS=20,
DLCIT=1, PROTOCOL=Q933, BWCNTL=NO, BCMODE=DCE;
ADD BC: SRN=0, SN=1, PN=0, BCID=0, BTS=1, ETS=9, DLCIT=1,
PROTOCOL=Q933, BWCNTL=NO, BCMODE=DCE;
ADD BC: SRN=0, SN=1, PN=1, BCID=0, BTS=2, ETS=17, DLCIT=1,
PROTOCOL=Q933, BWCNTL=NO, BCMODE=DCE;
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page23
BC Configuration Guidelines and Bandwidth Control
BWCNTL: bandwidth control switch
When BWCNTL is set to YES, bandwidth control is performed
according to bandwidth usage. If the remaining bandwidth of
the BC is greater than the reserved bandwidth, users should
be allowed to use the remaining bandwidth.
When BWCNTL is set to NO, the bandwidth of NSVCs must
not be larger than the maximum available bandwidth, that is,
users are forbidden to use the bandwidth in addition to the
allowed bandwidth.
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page24
Bandwidth Control Example Assume that a BC occupies timeslots 1 to 31. Each
timeslot is 64 K and the total bandwidth is 2 Mbit/s. The BC
is configured with two NSVCs.
When BWCNTL is set to NO, the 2 Mbit/s bandwidth is
distributed equally among the two NSVCs.
When BWCNTL is set to YES, if there is remaining bandwidth
after the CIRs of the two NSVCs are guaranteed, users are
allowed to use the remaining bandwidth.
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page25
DTE/DCE/DLCI
FR interface types: DTE and DCE
If a link is Down, the DTE sends link setup request to the DCE.
LAN LANFRDLCI
DLCI
DCE
DCE
DTEDTE
One NSVC corresponds to one PVC.
FR is based on the PVC and identified by the DLCI.
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page26
DTE/DCE Configuration Principle
BC
DCE
DCE
DTE
DTE
BSC SGSN
BSC SGSN
DTE DTE
FR
FR
Scenario 1
Scenario 2
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page27
DLCIThe DLCI type determines the value range of the DLCI corresponding to the NSVCs
of a BC.
The DLCI ranges from 1 to 5. The DLCI has no default value.
The following table shows the mapping between DLCI types and DLCIs:
DLCI type 1 2 3 4 5
DLCI value 16 to
1007
16 to
1007
1024 to
64511
2048 to
129023
131072 to
4194303
The DCLI on the SGSN should be the same as the DCLI on the PCU. The value is usually 1.
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page28
Step 6: Configure the NSVC ADD NSVC:
This command is used to configure the NSVC.
ADD NSVC: OTHERNODE="to BSS1", NSVCI=11, NSEI=1,
SRN=0, SN=0, PRON=0, PN=0, BCID=0, DLCI=100;
ADD NSVC: OTHERNODE="to BSS2", NSVCI=21, NSEI=2,
SRN=0, SN=0, PRON=1, PN=1, BCID=0, DLCI=100;
ADD NSVC: OTHERNODE="to BSS1", NSVCI=12, NSEI=1,
SRN=0, SN=1, PN=0, BCID=0, DLCI=100;
ADD NSVC: OTHERNODE="to BSS2", NSVCI=22, NSEI=2,
SRN=0, SN=1, PN=1, BCID=0, DLCI=100;
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page29
Step 7: Configure the NSE ADD NSE:
This command is used to configure the NSE. ADD NSE: OTHERNODE="to BSS1", NSEI=1, SRN=0, SN=0, PRON=0,
BSSID=1;
ADD NSE: OTHERNODE="to BSS2", NSEI=2, SRN=0, SN=1, BSSID=2;
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page30
Gb over FR Interface Status Check Check the BC status.
DSP BC
Check the PVC status. DSP FRPVC
Check the NSVC status. DSP NSVC
Check the SIG status. DSP SIGBVC
Check the cell information. LST CELL
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Checking the BC Status After a BC is connected, the messages exchanged between the DTE and the DCE are as follows:
The BC is available when the DTE and the DCE are exchanging
these messages.
Gb Interface Fr Trace_2009-05-19-14-12-52.ptmf
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page32
Checking the NSVC Status If the NSVC is available, the NS_ALIVE_PDU and NS_ALIVE_ACK_PDU messages are sent between the SGSN and
the PCU. You can trace the messages at the NS layer on the Gb interface. The traced messages are shown as follows:
When the NSVC is unavailable, the PCU does not respond to the NS_ALIVE_PDU
message from the SGSN.Gb_Ns_2009-05-19-14-25-10_e1.ptmf
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page33
Checking the Cell Information How to determine that a cell is lost:
On a 2.5G network, the PCU reports cells automatically. If a cell is lost, you can check whether the cell is reported by using the following methods:
Trace the messages on the Gb interface on the LMT of the SGSN. Run RST PTPBVC and specify the cell ID.
If the PCU has reported the cell, you can view the cell ID in the BVC_RESET_ACK message. One message reports one cell.
If the messages do not contain the specified cell ID, it indicates that the cell is not reported.
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page34
Contents
1. Basic Concepts 2. Data Configuration for Gb over FR3. Data Configuration for Gb over IP
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page35
Gb over IP Data Configuration Guidelines
General guidelines:
NSEs must be distributed to different ECUs.
Consider the capacities of the ECUs during the planning for
better implementation of load balancing.
The IP addresses of local endpoints on the NSEs must be set
on different ECUs.
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page36
Gb over IP Related Boards
MM/SM/SNDCP ECU
LLC
BSSGP
NS
IP EPU
L2/Physical Layer PFI
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page37
Gb over IP Negotiation Data IP address of the router
IP address and UDP port of the PCU
IP address of the port on the PFI of the SGSN
IP address of the Gb logical interface (the IP address is
provided by the EPU)
UDP port corresponding to the IP address of the Gb logical
interface
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page38
Example
IP network
Ethernet interface
EPU
PFI
EPU
PFI
Logical IP address
IP of PCU1
10.20.20.1:3322
/10.20.20.2:3323
IP of PCU2
10.20.30.1:2244/
10.20.30.2:2245
IP of PFI:10.30.30.1/10.30.30.2
IP of EPU: 10.10.10.1/10.10.11.2
Router
IP of router: 10.30.30.3
PCU1 PCU2
UDP port: 3344, 3345
IP route
ECU
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page39
Networking Data
Board Subrack No.
Slot No.
Active/Standby
Back board
Upper Subboard Lower Subboard
ECU 0 0 A ECU 0 2 A EPU 3 10 A PFI EEC EEC
EPU 3 12 A PFI EEC EEC
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page40
IP Networking Data
Data Type Data Item ValueIP address and UDP port of the PCU IP address and UDP port of PCU 1 10.20.20.1:3322
IP address and UDP port of PCU 1 10.20.20.2:3323
IP address and UDP port of PCU 2 10.20.30.1:2244
IP address and UDP port of PCU 2 10.20.30.2:2245
IP address of the PFI port on the SGSN
Interface (3/10/1) 10.30.30.1
Interface (3/12/1) 10.30.30.2
IP address of the Gb logical interface (the IP address is provided by the EPU)
EPU(3/10) 10.10.10.1
EPU(3/12) 10.10.11.2
UDP port corresponding to the IP address of the Gb logical interface
ECU(0/0) 3344
ECU(0/2) 3345
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page41
IP Routing
EPU(3/10)
PFI(3/10/1)
PCU/BSS
ROUTER
EPU IP
IP network
PCU IPDATA EPU IP PCU IP
Physical route Logical route
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page42
IP Virtual Link
ECU(0/0)
ECU(0/2)
EPU(3/10)
EPU(3/12)
IP triplet virtual link 1
IP triplet virtual link 2
IP Virtual Link ECU EPU IP EPU UDP Port
1 0/0 10.10.10.1 3344
2 0/0 10.10.11.2 3344
3 0/1 10.10.10.1 3345
4 0/1 10.10.11.2 3345
IP triplet virtual link 3
IP triplet virtual link 4
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page43
IP NSVC
ECU(0/0)
ECU(0/2)
IP NSVC 1
IP NSVC 2
IP NSVC 3IP NSVC 4
PCU (NSEI=1)
Board 1
Board 2
ECU(0/0)
ECU(0/2)
IP NSVC 5
IP NSVC 6
IP NSVC 7IP NSVC 8
PCU (NSEI=2)
Board 1
Board 2
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page44
IP NSVC DataIP NSVC NSEI NSVCI ECU SGSN IP
(EPU)SGSN PORT
PCU IP PCU Port
1 1 11 0/0 10.10.10.1 3344 10.20.20.1 3322
2 1 12 0/0 10.10.11.2 3344 10.20.20.2 3323
3 1 13 0/2 10.10.10.1 3345 10.20.20.1 3322
4 1 14 0/2 10.10.11.2 3345 10.20.20.2 3323
5 2 21 0/0 10.10.10.1 3344 10.20.30.1 2244
6 2 22 0/0 10.10.11.2 3344 10.20.30.2 2245
7 2 23 0/2 10.10.10.1 3345 10.20.30.1 2244
8 2 24 0/2 10.10.11.2 3345 10.20.30.2 2245
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page45
Networking Diagram
PCU IPEPU IPDATA
IP network
IP triplet virtual link
IP NSVCEthernet interface
PFI
EPU
PFI
Logical IP address
IP of PCU1
10.20.20.1:3322
/10.20.20.2:3323
IP of PCU2
10.20.30.1:2244/
10.20.30.2:2245
IP of PFI:10.30.30.1/10.30.30.2
IP of EPU: 10.10.10.1/10.10.11.2
Router
IP of router: 10.30.30.3
User data and control signaling
IPVlink
PCU1 PCU2
UDP port: 3344, 3345
Ethernet
ECU
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page46
Configuration Procedure
Step ActionPerformed on
the CGP or SGSN
Command
1. Configure the boards and related process groups.1 Add the ECU. CGP ADD BRD
2 Add the EPU. CGP ADD BRD
3 Add the process group on
the ECU. SGSN ADD PROCESSGRP
4 Add the process group on
the EPU. SGSN ADD PROCESSGRP
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page47
Configuration Procedure (Cont.)
Step ActionPerformed on
the CGP or SGSN
Command
2. Configure the IP routes.5 Set the port on the PFI. CGP MOD PORT
6 Activate the port on the PFI. CGP ACT PORT
7 Set the public IPv4 address
segment of the EPU.SGSN ADD PUBNWIP
8 Set the IP addresses . SGSN ADD IFIP
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page48
Configuration Procedure (Cont.)
Step ActionPerformed on
the CGP or SGSN
Command
3. Configure the Gb interface.
9 Set the service IP address of the Gb
interface.SGSN ADD BRDIP
10 Add NSEs. SGSN ADD NSE
11 Add local endpoints of the Gb
interface.SGSN ADD
GBIPLOCENDPT
12 Add peer endpoints of the Gb interface. SGSN ADD
GBIPRMTENDPT
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page49
Step 1: Add the ECU ADD BRD:
ADD BRD: SRN=0, SN=0, METYPE=SGSN,
FBRDHTYP=UPBA3, APPTYPE=ECU;
ADD BRD: SRN=0, SN=2, METYPE=SGSN,
FBRDHTYP=UPBA3, APPTYPE=ECU;
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page50
Step 2: Add the EPU ADD BRD:
ADD BRD: SRN=3, SN=10, METYPE=SGSN,
FBRDHTYP=MPF1, BBRDHTYP=PFI, APPTYPE=EPU,
BUPDBRDTYPE=EEC, BDOWNDBRDTYPE=EEC;
ADD BRD: SRN=3, SN=12, METYPE=SGSN,
FBRDHTYP=MPF1, BBRDHTYP=PFI, APPTYPE=EPU,
BUPDBRDTYPE=EEC, BDOWNDBRDTYPE=EEC;
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page51
Step 3: Add the Process Group on the ECU
ADD PROCESSGRP: This command is used to add a process group on a pair of
boards.
For example:
ADD PROCESSGRP: SRN=0, SN=0, PSN=3,
PROCGRP=ECUGP_2;
ADD PROCESSGRP: SRN=0, SN=1, PSN=4,
PROCGRP=ECUGP_2;
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page52
Step 4: Add the Process Group on the EPU
ADD PROCESSGRP: ADD PROCESSGRP: SRN=3, SN=10, PSN=11,
PROCGRP=EPUGP;
ADD PROCESSGRP: SRN=3, SN=12, PSN=13,
PROCGRP=EPUGP;
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page53
Step 5: Set the Port on the PFI
MOD PORT: This command is used to modify the attribute of the port of a
board in a back slot.
For example: MOD PORT: SRN=3, SN=10, PORTID=1, PORTTYPE=EETH,
ASISTMOD=AS;;
MOD PORT: SRN=3, SN=12, PORTID=1, PORTTYPE=EETH,
ASISTMOD=AS;;
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page54
Step 6: Activate the port on the PFI. ACT PORT:
This command is used to activate the port that is not in use on
a board in a back slot.
For example: ACT PORT: SRN=3, SN=10, PORTID=1;;
ACT PORT: SRN=3, SN=12, PORTID=1;;
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page55
Step 7: Set the public IPv4 address segment of the EPU (Optional)
ADD PUBNWIP This command is used to set the public IP address segment of the
EPU so that the IP addresses of the EPU belong to one subnet.
ADD PUBNWIP: IP="10.30.30.0“, MSK="255.255.255.0";
Same subnet
Router
PFI
PFIPFI
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page56
Step 8: Set the IP Addresses
ADD IFIP: This command is used to set the IP addresses of the ports on
the PFI.
For example:
ADD IFIP: SRN=3, SN=10, PN=0, IP="10.30.30.1",
MSK="255.255.255.0", DESC="EPU interface ip";
ADD IFIP: SRN=3, SN=12, PN=0, IP="10.30.30.2",
MSK="255.255.255.0", DESC="EPU interface ip";
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page57
Step 9: Set the Service IP address of the Gb Interface ADD BRDIP:
This command is used to set the service IP address of the Gb interface. For example:
ADD BRDIP: SRN=3, SN=10, MSTYPE=SECONDARY, IPT=IPV4, IPV4="10.10.10.1";
ADD BRDIP: SRN=3, SN=12, MSTYPE=SECONDARY, IPT=IPV4, IPV4="10.10.11.2";
DATA EPU IP PCU IP
DATA PCU IP EPU IP
PCU
PCU
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Step 10: Add NSEs ADD NSE:
For example, add an NSE for PCU 1.
ADD NSE: OTHERNODE="TO bss1", NSEI=1, SRN=0, SN=0, PRON=0, BSSID=1, BT=IP ;
For example, add an NSE for PCU 2.
ADD NSE: OTHERNODE="TO bss2", NSEI=2, SRN=0, SN=1, PRON=0, BSSID=2, BT=IP;
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Step 11: Add Local Endpoints of the Gb Interface
ADD GBIPLOCENDPT:To add the configuration for a local endpoint of the Gb interface in the
case of GB OVER IP.Weight
If the NSE of the local endpoint supports static Gb over IP, the SGSN can negotiate the weight of the local endpoint with the peer in advance.
If the NSE of the local endpoint supports dynamic Gb over IP, the peer is informed of the weight of the local endpoint through the dynamic CONFIG procedure; in addition, the weight can be changed through the dynamic CHANGEWEIGHT procedure.
ADD GBIPLOCENDPT: SRN=0, SN=0, PRON=0, NSEI=1, IPT=IPV4,
LIPV4="10.10.10.1", LUP=3344, SW=200, DW=200;
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Step 12: Add Peer Endpoints of the Gb Interface
ADD GBIPRMTENDPT:To add the Gb Interface IP EndPoint Weight, including remote EndPoint data Weight and signaling weight. For example:
ADD GBIPRMTENDPT: IPT=IPV4, RIPV4="10.20.20.1", RUP=3322, NSEI=1, SW=200, DW=200;
ADD GBIPRMTENDPT: IPT=IPV4, RIPV4="10.20.20.2", RUP=3323, NSEI=1, SW=50, DW=50;
ADD GBIPRMTENDPT: IPT=IPV4, RIPV4="10.20.20.1", RUP=2244, NSEI=2, SW=200, DW=200;
ADD GBIPRMTENDPT: IPT=IPV4, RIPV4="10.20.20.2", RUP=2245, NSEI=2, SW=50, DW=50;
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Weight SW is the signaling weight.
DW is the data weight.
The local endpoint with a larger weight is preferred by the peer.
For example, if you set the weight of the local endpoint
corresponding to an idle link to a large value, this endpoint takes
precedence over other endpoints in the selection by the PCU.
Similarly, the SGSN prefers a peer endpoint with a larger
weight on the PCU.
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NSVC Automatic Configuration SGSN9810 V900R010 supports the IP NSVC automatic
negotiation function. The automatic configuration of the IP
NSVC to the peer PCU is implemented through the
following procedures.
SIZE
Configuration
ADD/DELETE/CHANGE WEIGHT
TEST
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SIZE and Configuration Procedures
PCU SGSN
SNS-SIZE
SNS-SIZE-ACK
Preconfigured EndPoint
PCU SGSN
SNS-CONFIG-ACK
SNS-CONFIG-ACK
SNS-CONFIG
SNS-CONFIG
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Modification and Test Procedures
PCU SGSN
SNS-ADD/DELETE/CHANGE WEIGHT
SNS-ACK
PCU SGSN
NS-ALIVE-ACK
NS-ALIVE
NS-ALIVE
NS-ALIVE-ACK
SNS-SIZE
SNS-SIZE-ACK
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Gb over IP Interface Status Check Check the PFI port status.
DSP PORT
Check the route status. PING
Check whether the IP NSVC is available. DSP IPNSVC
Check the cell report. LST CELL
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Checking the IP NSVC Status If the IP NSVC is available, the NS_ALIVE_PDU and NS_ALIVE_ACK_PDU
messages are sent between the SGSN and the PCU. You can trace the messages
at the NS layer on the Gb interface. The traced messages are shown as follows:
When the IP NSVC is unavailable, the SGSN does not respond to the
NS_ALIVE_PDU message from the PCU.
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Checking the Cell Information The cell check for the Gb over IP service is the same as the
cell check for the Gb over FR server. The BSSGP layer
does not distinguish the lower layer bearer type and
therefore the management mechanisms of cells are the
same.
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