3wg007101 igwb hardware and principle issue 1.0
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Wireless Curriculum Development SectionWireless Curriculum Development SectionWireless Curriculum Development SectionWireless Curriculum Development Section
ISSUEISSUE
WG007101 iGWB structure WG007101 iGWB structure and principleand principle
WG007101 iGWB structure WG007101 iGWB structure and principleand principle
1.01.01.01.0
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ReviewReview
The CDRs generated by a switch are temporarily buffered in
its RAM that is generally known as the CDR pool. These
CDRs must be saved into physical media for CDR pool’s
capacity limit and volatile property.
What’s more, CDRs generated by the switch calls (generally
called the “Original CDRs”) can not meet the requirements of
the Billing System in terms of contents or format, thus, they
have to be pre-processed by the Charging Gateway (iGWB)
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ObjectivesObjectives
Know the system structure of iGWB
Know the hardware/software configuration of iGWB
Know software structure of iGWB
Know the Billing System interface specification supported
by iGWB
Know the parameter configuration for iGWB
Upon completion of this course, you will be able to:
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ReferenceReference
《 HUAWEI iGWB9812 iGWB User Manual》
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Course ContentsCourse Contents
Chapter 1 overview
Chapter 2 Hardware Structure
Chapter 3 Software Structure
Chapter 4 O&M
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System ApplicationSystem Application
iGWB is Huawei standard charging gateway equipment, which locates between
the switch and the Billing System and is in charge of CDR receiving, pre-proces
sing and buffering.
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System CharacteristicsSystem Characteristics
MSOFTX3000: call establish and control ;provide cdr pool
iGWB Server: receive cdr from MSOFTX3000 with TCP/IP pr
otocol
Billing system: communicate with iGWB ,using FTP( File Tra
nsfer Protocol ) or FTAM( File Transfer、 Access & Mana
gement ) If using FTP, iGWB works as server ,billing system works as cl
ient; If using FTAM, iGWB works as Responder, billing system w
orks as initiator
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System CharacteristicsSystem Characteristics
High reliability
dual-plane
automatic switchover mechanism upon fault to ensure reliability of the run
ning of the system and continuity of services.
Hard disk sub-system adopting RAID mode
Software auto-startup and restart after exit
auto-startup in case of power failure
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System CharacteristicsSystem Characteristics
Flexible bill format conversion
provides flexible configuration and conversion of bill formats
Large capacity
bills can be buffered in the iGWB for at least seven days
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Course ContentsCourse Contents
Chapter 1 overview
Chapter 2 Hardware Structure
Chapter 3 Software Structure
Chapter 4 O&M
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Chap2 hardware structureChap2 hardware structure
HardwareHardware configurationconfiguration
principle
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Hardware configurationHardware configuration
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Hardware configurationHardware configuration
BAU BAU
WCCU
WCCU
WCCU
WCCU
WCCU
WCCU
WSMU
WSMU
Subrack
GE
LAN SWITCH
LAN SWITCH
2 3 2 3
virtualIP
virtual IP
serial port
1 4 1 4
LAN SWITCH LAN SWITCH
OMC Billing system
heart beat
SCSI
disk arrary
Master
Standby
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Hardware configurationHardware configuration
iGWB server: the IGWB Server communicates with MSOFTX
3000 to accomplish such operations as bill storage, format co
nversion and preprocessing.
Integrated shifter: The Keyboard/Video/Mouse (KVM) shifter
is used to implement switchover control of input/output device
s. The integrated shifter includes the input/output devices like
Liquid Crystal Display (LCD), keyboard, and mouse
LANSwitch:The LAN Switch is the communication channel b
etween the iGWB and MSOFTX3000.
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Chap2 hardware structureChap2 hardware structure
Hardware configuration
principleprinciple
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iGWB running environmentiGWB running environment
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Working PrincipleWorking Principle
The iGWB Server provides four network adapters to communicate externally.
Local Area Connection Connected to the NMS and the bill console, functioning as t
he first heartbeat path between the active and standby iGWBs.
Local Area Connection 2 Connected to LAN Switch0, communicating wit
h the active plane of host.
Local Area Connection 3 Connected to LAN Switch1, communicating wit
h the standby plane of host.
Local Area Connection 4 Connected to the billing center, providing billing
interface.
Communicating with host
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Working PrincipleWorking Principle
Communicating with billing center
Communicating with bill console and NMS
Heartbeat path
The system provides two heartbeat paths, the first of which passes through Local
Area Network (LAN, also called private network in the system) composed by
network adapters 1;
the second passes through serial port.
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Course ContentsCourse Contents
Chapter 1 overview
Chapter 2 Hardware Structure
Chapter 3 Software Structure
Chapter 4 O&M
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iGWB software structureiGWB software structure
MSOFTX3000
Dual-system process
KERNEL process
Accesspoint
process
ClientWINDOWS
iGWB Server (WINDOWS2000)
Operationand
maintenanceprocess
MSOFTX3000
Dual-system process
KERNEL process
Accesspoint
process
ClientWINDOWS
iGWB Server (WINDOWS2000)
Operationand
maintenanceprocess
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iGWB software structureiGWB software structure
For the communication among processes, the most
mature Client/Server mode is adopted, which takes one
process as the center, and the rest of the processes as
sub-processes
realizing the function that one process schedules and
monitors other service sub-processes.
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System Module StructureSystem Module Structure
KERNEL process
Access point process
Operation & maintenance process
Dual-system process
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Bill service processing processBill service processing process
(Network module)
(Front saving module)
Generates andtransmits bills
MSOFTX3000
FTP/FTAMBilling center
Service flow of access point process
Receives bills, and through a particular protocol ensures that bills are received without repetition or loss
Directly saves the bills received by networkmodule and forms them into original bills
(Back saving module)
(Bill processing module)
Combines and sorts bills according to therequirement, and then transmits them tothe back saving module
Saves the bills by channel, forms the billsinto final bills and submits to the billing center
(Network module)
(Front saving module)
Generates andtransmits bills
MSOFTX3000
FTP/FTAMBilling center
Service flow of access point process
Receives bills, and through a particular protocol ensures that bills are received without repetition or loss
Directly saves the bills received by networkmodule and forms them into original bills
(Back saving module)
(Bill processing module)
Combines and sorts bills according to therequirement, and then transmits them tothe back saving module
Saves the bills by channel, forms the billsinto final bills and submits to the billing center
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Course ContentsCourse Contents
Chapter 1 overview
Chapter 2 Hardware Structure
Chapter 3 Software Structure
Chapter 4 O&M
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igwb Client Operationigwb Client Operation
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igwb Client Operationigwb Client Operation
The main framework function
Client Login/Exit
Office Management
Relogin
User Logout
System Lock
System Customization
Viewing
Navigation Tree Operation
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igwb Client Operationigwb Client Operation
Client Service Function
CDR Browsing and Querying
Status Query
Log Browsing
Operator Management
Other Operation
Debugging Function
Debugging Information Browsing
Protocol Tracing Information Browsing
Workflow Information Browsing
Opening igwb Client
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CDR saving directoryCDR saving directory
/backsave|----3G |----cdr | |----20030101 | | |----b00000001.dat | | |----b00000002.dat | | |---- … … | | |----b00000060.dat | | … … | |----20030131 | | |----b00001800.dat | | |----b00001801.dat | | | … … | | |----b00001870.dat
/backsave/Second|----3G |----cdr | |----100007f_20030101000000.btf | |----100007f_20030101001500.btf | | … … | |----100007f_20030101234500.btf
Each final CDR file can be save in one or two shares. If saved in two shares,
the first share has different directory structure with the second share.
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igwb Maintenanceigwb Maintenance
How to analyze the trace information
The trace files are in the directory “igwb/trace/”
If any abnormality or fault occurs to the system, these pieces of
Trace information will help us locate faults. Please note that trac
e information records the fault information and some important r
unning information during the system running, but it is not neces
sarily the system fault or abnormality. The system will also outp
ut Trace information in normal cases.
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igwb Maintenanceigwb Maintenance
Examples:
Configuration files fail to be opened !
Please check whether the file igwb/config/ini/igwb.ini in this director
y is available.
The available space for front save is less than the minimum alar
m space !
Open the file “igwb/config/igwb.ini” and change the parameter, or de
lete some CDR files.
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igwb Maintenanceigwb Maintenance
How to analyze the alarm information
Browsing the alarm via the alarm console
Reference to the relevant handing suggestions
Pay attention to the warn level and handle the fault in time
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igwb Maintenanceigwb Maintenance
Examples:
Heartbeat interrupted
Alarm name Warn level Alarm type Description of alarm causes
Heartbeat
interrupted
Emergency Fault
alarm
This alarm will be generated when all
the private networks used for dual-
server heartbeat are interrupted
Handling suggestion:
Base on the alarm parameters, check whether the hardware of the network
interfaces or serial ports used for heartbeat between the dual servers is
properly connected. Besides, check whether the IP address is correctly set
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igwb Maintenanceigwb Maintenance
How to perform the igwb Server routine maintenance
How to view the running status of a process
How to configure the IP address of a server?
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SummarySummary
Hardware structure
Software structure
O&M
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