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


� Describe the typical network application of SG7000

Contents

1. Product Location

2. Product Features

3. System Architecture

4. Networking Applications



5. Technical Specifications

Contents

1. Product Location

2. Product Features






SG7000 Product Location

� SG7000 can be used as :

� Signaling Gateway (SG)

� Independent Signaling Transfer Point (STP or IP-STP)


Hierarchical Structure of NGNService

management

Network controlSoftSwitch SoftSwitch

iOSSPolicy

Server

Application

ServerSCPLocation

ServerMRS Video

server


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.


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


MTP SIGTRANMTPE1 IPSIGTRAN

STP / IP-STP

� SG7000 work as independent STP


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.


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






Contents

2. Product Features

2.1 Product Features

2.2 O&M Function

2.3 Service and Functions


Product Features

� High Capacity, High Processing Capability and Low Delay

� High Reliability

� Powerful Functions

� Smooth Expansion


� 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.


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.


� 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)


� 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:


� 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)


� 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.


� 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.


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


2.2 O&M Function



OAM structure

to Host

BAM

SNMP

Alarm


WS WSWS

LAN SwitchMML

WS

Modem Modem

NMS

Maintenance Terminal – system tag


Maintenance Terminal –Maintenance tag


MML interface


Operation Function

� The database can be operated such as:

� Add

� Delete

� Modify


� Query

� Store

� Back up

� Restore

Management Function

� User management function

� Workstation management

� Command group management

� Alarm reporting function


� Alarm reporting function

� Log function

Maintenance Functions

� Maintenance operation function

� Traffic statistics function

� Alarm statistics function

� Alarm configuration item query and modification function


� Alarm configuration item query and modification function

� Monitor function

Debugging Functions

� Built-in signaling analysis function

� Signaling message test function

� External test interface


Contents

2. Product Features


2.2 O&M Function



Basic function

� The multiple SPs function

� The SG7000 can support up to 256 local signaling points (SPs)

� MTP3 load sharing function

� SCCP load sharing


� 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


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.


� 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.


� 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






SG7000 Hardware Composition

� The SG consists of three subsystems

� Host subsystem

� Maintenance and management subsystem

� Monitor subsystem.


� 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


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


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


A i r d e f l e c to r


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


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




9 U

2 U

2 U

2 U

9 U


B l a n k f i l l e r p a n e l




Frame


(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.


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






As Independent STP (Narrowband)

HSTP

MSC

LSTP

MSC

HLR

SSP


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


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


SoftX2

Point code 3

M2PA/M3UA

SG1

SG2

LS

STP

SS7LS

In Agent Mode

Point code 1SoftX1

M3UA

STP

SS7


Point code 2SoftX2

M3UASG7000STP

LS

LS SS7

Contents

1. Product Location

2. Product Features






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


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


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


Reliability

Parameter Specification

System availability ≥ 99.9998%

Unavailable time ≤ 0.54 minute/year

Mean time between failures (MTBF) 63years


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


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.


Thank youwww.huawei.comwww.huawei.com

1 oas025101 sg7000 system overview issue1.00

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