View
56
Download
16
Category
Preview:
DESCRIPTION
ZXWN GGSN System
Citation preview
GGSN System ArchitectureV0222
ZTE University
CN Team
TN_SS004_E1_1
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
Course Objectives
GGSN System Function
Hardware system overview
Board introduction
Hardware principle
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
SGSN
RNS
Packet Backbone
GGSN
DNSCG
BC
IP/DDN
HLR
NO.7
Fire Wall
RadiusServer
Web
GGSN System Function
n Networking Structure of the WCDMA Packet Domain
GGSN System Function
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
GGSN System Function
n GGSN External Interface
P-CSCF
GGSN System Function
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
GGSN System Function
n GGSN Interface Description
Interface Description
Gn Interface between GSN nodes within the same PLMN
Gp Interface between GSN nodes in different PLMN
Gc Interface with HLR
Ga Interface with CG , using GTP΄ protocol
Gi Interface with external PDN
GGSN System Function
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
Course Objectives
SGSN System Function
Hardware system overviewBoard introduction
Hardware principle
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
GGSN Hardware System Overview
n Service shelf
Ñ The shelf is used to combine various circuit boards through
the backplane to form an independent unit.
n GGSN has two kinds of service shelfs
Ñ Level-1 switching shelf
Ñ Control shelf
Hardware system overview
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
shelf Backplane Name Meaning
Control shelf BCTC Backplane of Control Center
Level-1 switching shelf BPSN Backplane of Packet switch
network
Service shelf and corresponding backplane
Hardware system overview
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
Communication with service shelf
Hardware system overview
Control subrack
Level-1 switching subrack
Control flow Ethernet
Clock
signal
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
Course Objectives
SGSN System Function
Hardware system overview
Board introductionHardware principle
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
GLIQV Board
n 1. 2.5G Line Interface Board (GLIQV)
Ñ 1) Function
In GGSN, GLIQV is used as GGLP,
GGUP and GCNT. TX
S D8ACT8
RX
TX
TX
TXACT7 S D7
RX
S D6ACT6
RX
RX
ACT5 S D5
TX
S D4ACT4
RX
S D2ACT2
RX
ACT3 S D3
TX
RX
TXACT1 S D1
ENUM
RST
RX
TX
ACTALMACTEXCH
ENUM RUN
RST
ALMEXCH
RUN
GGUPGGLP
ACT4 SD4
RX
SD1ACT1
TX
ACT3 SD3TX
RX
RX
ACT2 SD2
TX
RX
TX
APBE
RST
ACTEXCH
ALM
ENUM RUN
GCNT
1111
Board introduction
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
GLIQV Board
n 2) Indicator
n 3) Button
GLIQV has two buttons: EXCH and RST
n 4) Interface
When GLIQV used as GGLP, there are 2 pair of GE fiber interface in the front panel
Name Color Indication Description
ACT1-2 Green Optical interface activationindicator
Indicating currently activated optical interface
SD1-2 Green Optical signal indicator Indicating whether the optical interface has received optical signals
Board introduction
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
GLIQV Board
n GGLP FunctionÑIt provides two pairs of GE ports, and adopts the
load-sharing working mode between boards. It provides four pairs of external physical GE ports in total.
ÑIt implements such functions as the physical layer adaptation, IP packet checklist, fragmentation, transfer and traffic management. Its processing capability orientation is 2.5 Gbps line-speed processing and transfer, and 1K-stream traffic management.
Board introduction
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
GLIQV Board
n GGUP Function
ÑIt terminates the GTP-U protocol, restores
outgoing user packet service data packets,
processes the data packets (NAT, tunnel
processing, and data encryption), routes the data
packets according to its content, and forwards the
data packets.
Board introduction
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
FLIV Board
n 2. FLIV
Ñ 1) Function
In GGSN, FLIV module is used as GFLP
The FLIV board is an interface board with six
FE ports, mainly implementing the functions of
the physical layer adaptation, IP packet
checklist, fragmentation, transfer and traffic
management.
Difference between GGLP is that GFLP can
provide FE interface and GGLP provide GE
interface
Board introduction
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
FLIV Board
Ñ 2) Indicator
Ñ 3) Buttons
EXCH and RST
Name Color Indication Description
ACT1-6 Green 100 M interface activation indicator
Indicating currently activated the 100 M interface
LINE1-6 GreenStatus indicator of external 100 M access network port 1 ~ 6
On: port 1 is connected;
Off: port 1 is not connected
Board introduction
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
Course Objectives
SGSN System Function
Hardware system overview
Board introduction
Hardware principle
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
Hardware structure
Hardware principle
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
System Structure
S P B C LK G
O M P
C G
U S IR P U
N O .7 S ignallingN etw ork
B ITS S Y N S ignal Inpu t
FEF E FE FE
F E FE F E
E 1/T1
F E
N M S
S Y N SignalInpu t
S Y N S ignalO utpu t
Q 3 o r C O R B A
O M C
S erver
O M CC lien t
FE
F EF E
O M CC lien t
S erviceM P
ZX W N G GS N
M edia F low S witch
GG LP GG LP
U M T S P A C K E TS W ITC H N E T W O R K
P D N
G E GE
GEGE /F E
FEF E
GG U P
GE
C on trol F low S witch
Hardware principle
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
User Plane Principle
n The GGLP cooperates with the GGUP to implement the functions of encapsulation, decapsulation and routing forwarding of the user plane.
n GGLP distinguishes the control plane from the user plane according to the destination IP address, and forwards them to the corresponding board of the control plane or the GGUP board of the user plane.
n The GGUP board receives the user plane data distributed by the GGLP. It terminates the GTP-U protocol, restores outgoing user packet service data packets, processes the data packets (NAT, tunnel processing, and data encryption), routes the data packets according to its content, and forwards the data packets to the corresponding GGLP interface board.
Hardware principle
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
User Plane Principle
n Multiple GGUPs compose the processing unit of the user
plane of the GGSN. Each GGUP occupies an IP address
of the GGSN user plane.
n In addition, after receiving the routing packet, the
interface board GGLP forwards them to the RPU for
processing.
Hardware principle
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
IPIP
GLIGLI
PPSSNN
GGUPGGUP
….
….
UIMCUIMCUIMCUIMC
GLIGLIGGUPGGUP GLIGLIGGLPGGLP
GLIGLIGGLPGGLP
UIMC/CHUB
SMP SMP OMPSPBOMP
UIMC/CHUB
USI
NMS
SIPI SMP SMPSMPSMPCLKG
CGE1
…
IPIP
L1 switching
Control Frame
Services Flow
Control and signaling flow
ZXWN GGSN User Plane Signaling Flow
Hardware principle
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
Control Plane Signal Flow
n RPU, SMP/OMP makes the control plane of GGSN,
responsible for the routing protocol processing, GTP-C
processing and system management and maintenance
n SMP process application layer signal (session processing
signal, MAP) , and it has the function of generating CDR,
making statistics etc.
n MP of GGSN send CDR to CG from USI.
Hardware principle
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
IPIP
GLIGLI
PPSSNN
GGUPGGUP
….
….
UIMCUIMCUIMCUIMC
GLIGLIGGUPGGUP GLIGLIGGLPGGLP
GLIGLIGGLPGGLP
UIMC/CHUB
SMP SMP OMPSPBOMP
UIMC/CHUB
USI
NMS
SIPI SMP SMPSMPSMPCLKG
CG E1
…
IPIP
Services Flow
Control and signaling flow
L1 switching
Control Frame
ZXWN GGSN Control Plane Signaling Flow
Hardware principle
PDF 文件使用 "pdfFactory Pro" 试用版本创建 www.fineprint.cn
Recommended