Download - 1 OAS025101 SG7000 System Overview ISSUE1.00
SG7000 System Overview
www.huawei.com
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved.
References
� SG7000 Product Manual – SG7000 System Description.
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page1
Objectives
� Upon completion of this course, you will be able to:
� Describe the overview of SG7000
� Describe the key features of SG7000
� Describe the basic hardware of SG7000
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� Describe the typical network application of SG7000
Contents
1. Product Location
2. Product Features
3. System Architecture
4. Networking Applications
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4. Networking Applications
5. Technical Specifications
Contents
1. Product Location
2. Product Features
3. System Architecture
4. Networking Applications
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page4
4. Networking Applications
5. Technical Specifications
SG7000 Product Location
� SG7000 can be used as :
� Signaling Gateway (SG)
� Independent Signaling Transfer Point (STP or IP-STP)
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Hierarchical Structure of NGNService
management
Network controlSoftSwitch SoftSwitch
iOSSPolicy
Server
Application
ServerSCPLocation
ServerMRS Video
server
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IAD/
MTAUA UMG
PLMN/3G
SG TMG
PSTN
UMG
Core switching
Edge
access
SIPPhone
H.323Phone
Eudemon
Packet core network
Communication Between PSTN and NGN� MG processes the media stream (voice/data) and SG processes
the signaling.
� SG, which is located at the edge between PSTN and NGN, can connect with STP through SS7 protocol and with MGC through SIGTRAN protocol. SG supports seamless operation of signaling transfer between PSTN and NGN.
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SS7
Circuit
SS7
Circuit
PSTN
PSTN
IP networkSG SG
MG MG
MGC MGC
SIGTRAN SIGTRANSS7
Circuit
SS7
Circuit
PSTNPSTN
IP networkSG SG
MG MG
MGC MGC
SIGTRAN SIGTRAN
TUP/ISUP… TUP/ISUP…
PSTN/PLMN SoftSwitchSG
Protocol Exchange Between SS7 and SIGTRAN
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MTP SIGTRANMTPE1 IPSIGTRAN
STP / IP-STP
� SG7000 work as independent STP
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Product Location of SG7000� SG7000 is a kind of independent signaling gateway that is located
at the access layer of NGN, and is used to realize communication
between PSTN/PLMN and NGN.
� SG7000 uses Signaling Transport (SIGTRAN) and Signaling
System No.7 (SS7) protocols.
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page10
System No.7 (SS7) protocols.
� SG7000 has the functions of independent signaling transfer point
(STP) and can be used in TDM network.
Contents
1. Product Location
2. Product Features
3. System Architecture
4. Networking Applications
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4. Networking Applications
5. Technical Specifications
Contents
2. Product Features
2.1 Product Features
2.2 O&M Function
2.3 Service and Functions
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Product Features
� High Capacity, High Processing Capability and Low Delay
� High Reliability
� Powerful Functions
� Smooth Expansion
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� Smooth Expansion
� Abundant and Standard External Interfaces
� Convenient and Practical Operation and Maintenance
� OSTA1.0 Hardware Platform Advantages
High Capacity, High Processing Capability and Low Delay� It supports up to 12096 64-kbit/s narrowband links. The
technical specifications of the SG, such as message
processing capability and message transfer delay, meet
various standards and have a rich abundance.
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High Reliability
� Determined by its position in the network, the signaling equipment
must be very reliable.
� The SG follows the strict standards of Huawei in fields, such as part
selection, production process, environment test, and extreme
conditions test.
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� Moreover, its reliability is also enhanced through its design. The SG
adopts a fully distributed architecture, featuring modular and dual-
plane design.
� All crucial boards support the backup mode. Thus, the fault of a single
part will not interrupt the service.
Powerful Functions� The SG supports SS7 and SIGTRAN, and implements the interconnection between SS7 and IP.
� Message Transfer Part (MTP)
� Signaling Connection Control Part (SCCP)
� Transaction Capabilities Application Part (TCAP)
� Operation Maintenance and Administration Part (OMAP)
� Stream Control Transmission Protocol (SCTP)
� MTP2-User Peer-to-Peer Adaptation Layer (M2PA)
MTP2 User Adaptation Protocol (M2UA)
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� MTP2 User Adaptation Protocol (M2UA)
� ISDN Q.921-User Adaptation Layer (IUA)
� MTP3 User Adaptation Protocol (M3UA)
� SCCP User Adaptation Protocol (SUA)
� The SG can work in signaling point agent mode or in STP mode. It implements the following functions:
� Transferring signaling messages between PSTN/PLMN and IP network
� Forwarding signaling messages inside PSTN/PLMN
� Translating global title (GT)
� Supporting multiple signaling point codes (SPCs)
Smooth Expansion
� The SG adopts the OSTA1.0 (Open Standards Telecom
Architecture) platform as its hardware platform. Its design
adopts a modular structure. This mode meets the demand
on smooth expansion:
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� You can add expansion frames one by one
� The frames are connected through LAN Switches.
Abundant and Standard External Interfaces� The SG provides open network interfaces, abundant physical interfaces
and standard network management (NM) interfaces externally.
� Circuit interface: E1 interface (2.048 Mbit/s) and T1 interface (1.544 Mbit/s)
� Clock interface: 2.048 Mbit/s, 2.048 MHz and 8 kHz clock signal interfaces
� Ethernet interface: 10/100 BASE-TX
Standard NMS interface: Simple Network Management Protocol (SNMP)
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� Standard NMS interface: Simple Network Management Protocol (SNMP)
interface
� Man machine language (MML) interface
� E1/T1 interface supports the bit reversal function
Convenient and Practical Operation and Maintenance� The OAM system of SG adopts the distributed architecture
and provides methods, such as GUI and MML commands
for maintaining the equipment. It supports the local access
and the remote access at the same time.
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� Traffic measurement
� Real-time fault management
� Signaling tracing and message explanation
� Access to M2000/N2000 NMS
OSTA1.0 Hardware Platform Advantages � The SG7000 uses the OSTA1.0 hardware platform.
� The OSTA1.0 hardware platform has the following advantages:
� Various functions, rich interface types, excellent expandability, support for
multiple service applications.
� High integration of a single cabinet (a cabinet support four racks), high density,
saving equipment room space.
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saving equipment room space.
� Hardware and bottom-layer software are developed by Huawei, with low cost
and maintenance expenditure and high performance-to-cost ratio.
� Featuring low power consumption and TCO, and saving energy.
� Perfect on-line detection, ensuring timely troubleshooting.
� Fine hardware architecture, easy for upgrade and maintenance.
Contents
2. Product Features
2.1 Product Features
2.2 O&M Function
2.3 Service and Functions
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OAM structure
to Host
BAM
SNMP
Alarm
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WS WSWS
LAN SwitchMML
WS
Modem Modem
NMS
Maintenance Terminal – system tag
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Maintenance Terminal –Maintenance tag
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MML interface
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Operation Function
� The database can be operated such as:
� Add
� Delete
� Modify
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� Query
� Store
� Back up
� Restore
Management Function
� User management function
� Workstation management
� Command group management
� Alarm reporting function
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� Alarm reporting function
� Log function
Maintenance Functions
� Maintenance operation function
� Traffic statistics function
� Alarm statistics function
� Alarm configuration item query and modification function
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� Alarm configuration item query and modification function
� Monitor function
Debugging Functions
� Built-in signaling analysis function
� Signaling message test function
� External test interface
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Contents
2. Product Features
2.1 Product Features
2.2 O&M Function
2.3 Service and Functions
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Basic function
� The multiple SPs function
� The SG7000 can support up to 256 local signaling points (SPs)
� MTP3 load sharing function
� SCCP load sharing
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� Enhanced Multi-Point Load Sharing
� Broadband load sharing function
� Multiple logical networks function
� Embedded DXC function.
Optional Value-Added Services
� Mobile Number Portability
� With the mobile number portability (MNP) function, a user can
move among the networks without changing MSISDN
� The SG7000 can be used as the SRF equipment to provide
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STP-based MNP function
� The SG7000 supports up to 25 million users
Optional Value-Added Services (Cont.)
� Flexible Number Routing
� With the flexible number routing (FNR) function, operators can
flexibly allocate MSISDNs for users without worrying about the
mapping between the MSISDNs and the IMSIs in the HLR.
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� The SG7000 realizes the FNR function by using the SRF
solution
� The SG7000 supports up to 25 million users
Optional Value-Added Services (Cont.)
� Signaling Firewall
� The SG7000 analyzes the crucial information in the message
and compares it with the screening rule provided by the user to
decide whether to transfer or discard the message.
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page34
� Screening is used to ensure the security and reliability of the
network. Therefore, it is also called "signaling firewall".
Contents
1. Product Location
2. Product Features
3. System Architecture
4. Networking Applications
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page35
4. Networking Applications
5. Technical Specifications
SG7000 Hardware Composition
� The SG consists of three subsystems
� Host subsystem
� Maintenance and management subsystem
� Monitor subsystem.
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� The SG provides
� E1/T1 interfaces for the STP/SP
� FE interfaces for the softswitch
� FE NMS interfaces for the NMC.
System architecture
LAN Switch0
FE FE
FE
0# frame
1# frame
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LAN Switch0
LAN Switch1
HostBackground
WS WS
LAN Switch
To NMS
Emergency WS
BAM
1# frame
WS
2# frame
Cabinet
2 U
2 U
2 U
D C P D B
S e rv ic e fr a m e 19 U
A ir d e f le c to r
9 US e rv ic e f ra m e 0
A ir d e f le c to r
2 U
9 U
9 U
2 U
D C P D B
S e r v i c e f r a m e 3
S e r v i c e f r a m e 2
A i r d e f l e c to r
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1 U
2 U
1 U
B A M
1 U
1 U
1 U
3 U
2 U
3 U
K V M S
L A N S w itc h 1L A N S w itc h c a b lin g f ra m e
L A N S w itc h 0
B la n k f il le r p a n e l
3 U
3 U
3 U
A ir d e f le c to r
L A N S w itc h c a b lin g f ra m e
B la n k f i lle r p a n e l
B la n k f i lle r p a n e l
B la n k f i lle r p a n e l
B la n k f i lle r p a n e l
9 U
2 U
2 U
2 U
9 U
A i r d e f l e c to r
B l a n k f i l l e r p a n e l
S e r v i c e f r a m e 1
S e r v i c e f r a m e 0
A i r d e f l e c to r
Frame
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(1)(3)
(2)
(1) Fan box (2) Front view of frame (3) Rear view of frame
BoardBoard Full Expression Functions
HSYS High-level system unit It is the system board of the SG, working in 1+1 backup mode.
HBIU High-level system board back interface unit
The HBIU is the back board of the HSYS. It provides the physical interface for the back wiring of HSYS.
HSCU Hot swappable control unit It implements the hot swappable control function and must be configured in pairs with the HSYS.
SBPI Signaling broadband processing interface
The SBPI is the broadband signaling distribution board, implementing the LAN driving and IP distribution functions for the system IP interface. It works in 1+1 backup mode.
SBPU Signaling broadband processing unit
The SBPU is the broadband signaling processing board. It is the basic signaling processing unit of the system and is used to process SS7 signaling and SIGTRAN protocol. Two SLPU/SHPU subboards can be pinched on it.
VIEB Versatile interface extension unit The VIEB is the back board of the SBPI board, and provides the back wiring Ethernet interface for it.
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SEPU Signaling E1 peripheral interface unit
It provides 16 E1/T1 physical interfaces and supports timeslot switching.
SHPU Signaling high level link processing unit
It is the sub-board of the SBPU and processes the SS7 signaling messages. Each SBPU can be configured with two SHPUs.
SLPU Signaling link processing unit It is the sub-board of the SBPU, processing the SS7 signaling messages. Each SBPU can be configured with two SLPUs.
CKII Clock interface unit It provides stratum-2 standard synchronous clock. CKII boards work in 1+1 backup mode.
SCKU Satellite Signal Receiver And Clock Unit
It provides stratum-2 standard synchronous clock. SCKU boards work in 1+1 backup mode.
ALUI Alarm unit interface The ALUI is the monitoring board, inserted in slot 16 of the service frame. It indicates the system status and reports the alarm information obtained through other ways.
UPWR Power The power boards, including front and back boards, providing DC power supply to all the boards in the frame. Each power board occupies two slots.
Contents
1. Product Location
2. Product Features
3. System Architecture
4. Networking Applications
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4. Networking Applications
5. Technical Specifications
As Independent STP (Narrowband)
HSTP
MSC
LSTP
MSC
HLR
SSP
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HLR
SCP
SMSC
LSTP
HSTP
As Independent STP (Wideband)
CAP/M3UA MAP/M3UA MAP/M3UA
SCP SMS-C GMLC/SMLC HLR/EIR
M2PA
SG
SG
SG
SG
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MAP
TDM
TDM
TDM
TUP/ISUP
M3UA/M2PA
MSC Server MSC Server
H.248H.248
MGW
UTRAN
BSS
TDM
RTP/RTCP
SIP-T/BICCRANAP
AAL2BSSAP
PSTN/ISDN
GSM/R99 PLMN
In Signaling Transfer Mode
SoftX1
Point code 1Point code 2
M2PA/M3UA
SS7
STP
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SoftX2
Point code 3
M2PA/M3UA
SG1
SG2
LS
STP
SS7LS
In Agent Mode
Point code 1SoftX1
M3UA
STP
SS7
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Point code 2SoftX2
M3UASG7000STP
LS
LS SS7
Contents
1. Product Location
2. Product Features
3. System Architecture
4. Networking Applications
Copyright © 2009 Huawei Technologies Co., Ltd. All rights reserved. Page46
4. Networking Applications
5. Technical Specifications
Capacity Parameter Specification
Max. number of links (64 kbit/s) 12,096
Max. number of links (2 Mbit/s) 756
GT capacity 200,000
Max. number of destination signaling points 2048
Max. number of narrowband signaling link sets 2048
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Max. number of narrowband signaling link sets 2048
Max. number of narrowband signaling routes 4096
Max. number of SCTP associations 5120
Max. number of local signaling points supported 256
Performance Parameter Specification
Max. load over 64-kbit/s signaling link 0.99 Erl
Max. load over 2-Mbit/s signaling link 0.95 Erl
Message transfer delay 3–15 ms
Max. signaling message processing capability 4920 k MSU/s
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Max. signaling message processing capability 4920 k MSU/s
Max. GTT capability 2800 k GTT/s
System capacity and performance in pure IP network
Parameter Specification
Max. IP links supported 5120
Max. IP STP signaling transfer capability 1,600,000 packet/s
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Reliability
Parameter Specification
System availability ≥ 99.9998%
Unavailable time ≤ 0.54 minute/year
Mean time between failures (MTBF) 63years
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Mean time between failures (MTBF) 63years
Power consumption Cabinet Device Power Consumption
(W)Total Power Consumption (W)
Basic cabinet Two service frames 2 × 480 = 960 1419(IBM X343)1539(C5210)1669(IBM 3650T)1469(DELL 2950)
Fan frame, PDB 25
Two LAN Switches 2 × 30 = 60
KVMS 24
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KVMS 24
BAM 350(IBM X343)470(C5210)600(IBM 3650T)400(DELL 2950)
Extension cabinet Four service frames 4 × 480 = 1920 1945
Fan frame, PDB 25
Summary
� The course introduces the product location, product features,
system architecture, networking applications and technical
specifications of SG7000. And the key points are product
location and networking applications.
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