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HUAWEI TECHNOLOGIES CO., LTD.
www.huawei.com
HUAWEI Confidential
Security Level: 内部公开
Differences Between Huawei ATCA-Based and CPCI-Based SoftSwitches
ISSUE2.0
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 2
This slides describe the differences between
ATCA-based and CPCI-based softswitches
from different aspects. Upon completion of this
course, you will be able to master the changes
made to the ATCA-based softswitch compared
with the CPCI-based softswitch.
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 3
Chapter 1Chapter 1 Overall DifferencesOverall Differences
Chapter 2 Hardware Differences
Chapter 3 Background Differences
Chapter 4 NMS Differences
Chapter 5 O&M Differences
Chapter 6 Function Differences
Chapter 7 Documentation Differences
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 4
Chapter 1 Overall DifferencesChapter 1 Overall Differences
1.1 Networking
1.2 Performance and Reliability
1.3 Software Architecture
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential
Page 5
Networking (No Difference Between ATCA and CPCI)
Huawei's mobile soft switch supports various networking modes, such as the multi-area network, N+1 dual homing, and MSC Pool. The network structure of ATCA-based softswitches is the same as the network structure of CPCI-based soft switches. You can use a mixture of ATCA-based softswitches and CPCI-based softswitches to form an MSC Pool.
The ATCA-based soft switch has a large capacity. Therefore, it uses multiple signaling points to interwork with other NEs. MPLS ---Multiprotocol label switching
BSC1 BSC2
MSC Server
PC 0
PC 2
BSC1 BSC2
PC 0
PC 1
N+1 Dual Homing + Mini-Flex MSC Pool + Mini-Flex
BSC3BSC3
Mini-Flex
Backup MSS1 MSS2
Mini-Flex
STP HLR/SCP/SMSC…
STP HLR/SCP/SMSC…
BSC4
Mini-Flex
BSC4
Backup Center
IP/MPLS IP/MPLS
Heart BeatMSC Server
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 6
Chapter 1 Overall DifferencesChapter 1 Overall Differences
1.1 Networking
1.2 Performance and Reliability
1.3 Software Architecture
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 7
Performance (ATCA is much better than CPCI) and Reliability (No Difference Between ATCA and CPCI) High performance
The ATCA(ADVANCE TELECOMMUNICATION COMPUTE ARCHITECTURE)-based softswitch
uses Intel four-core CPUs, with a main frequency of 2.13 GHz and data switching bandwidth of 2.5
Tbit/s.
The ATCA-based soft switch uses server blades, which facilitate distributed deployment.
The performance of a fully loaded ATCA-based VMSC with two cabinets and three subracks can
reach 26 MBHCA. Such a VMSC can support 10 million subscribers.
High integration and low power consumption
The following data is obtained based on the second traffic model of China Mobile in 2009:
The power consumption of an ATCA-based cabinet is 1.8 kW. The power consumption of two CPCI-
COMPACT PCI ----PCIMG PCI INDUSTRIAL COMPUTER ARCHITECTURE GROUP based
cabinets is 2.3 kW.
The occupied area of an ATCA-based cabinet is 0.48 square meters. The occupied area of an CPCI-
PCI --- PHERIFERIAL COMPONENET INTERCONNECT based cabinet is 0.96 square meters.
High reliability (99.999%)
All units of the ATCA-based Soft's witch are hot-swappable.
The ATCA-based soft's witch provides redundancy of all key components, such as the power
modules, fan modules, management modules, and processing modules. The ATCA platform enables the software to capitalize on the advanced hardware with multiple cores and multiple CPUs, thus improving the system performance without affecting the reliability.
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 8
Chapter 1 Overall DifferencesChapter 1 Overall Differences
1.1 Networking
1.2 Performance and Reliability
1.3 Software Architecture
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 9
Software Architecture (No Big Difference Between ATCA and CPCI)
The software architecture is consistent for the ATCA and CPCI platforms.
The differences between them are as follows:
The background software of the ATCA platform consists of the OMU, LMT, and
WebUI. The OMU is deployed on the UPBA1, and the LMT and WebUI on PCs to
implement man-machine interaction and device management.
The background software of the CPCI platform consists of the BAM and LMT.
The BAM is deployed on a server, and the LMT on PCs to implement man-
machine interaction and device management.
Operating system
Middleware
Communication
Protocol processing
Service processing
Operating system
Database software
PerformanceConfiguration
AlarmMaintenance
PerformanceConfiguration
AlarmMaintenance WebUI
LMT
Signaling interface and bearer
Database
Device mgmt Device mgmt
Host software Background software
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 10
The ATCA Softswitch Changes to Use the Linux OS
Component CPCI ATCA
Service boards VxWorks Compact Linux
iGWB Windows server Linux boards
XPTU Windows server Linux boards (The XPTU and
the OMU are integrated into
the same board)
BAM/OMU Windows server, SQL
database
Linux boards, Oracle
database
Note: When the SOSM networking is enabled, an XPTU server based on
the Windows OS is required.
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 11
Chapter 2 Hardware DifferencesChapter 2 Hardware Differences
2.1 Hardware Architecture
2.2 Hardware Specifications
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 12
Hardware Structure (ATCA Different from CPCI)
WEPI
WBFI WIFM
WCKI
WCPC
WBSG
WCDB
WMGC
WCCU
WSIU/WSMU
WBAI WAFM
iGWB
BAM
E1interface
BITS
FEinterface
ATMinterface
NMS
BC
Interface module Bottom-layersignaling
processingmodule
Serviceprocessing
module
System support module
LAN bus
OSTA bus
WEPIATM-2Minterface WEAM
WHSC
WS
WS
OAM module Hardware architecture (CPCI)
The differences are as follows:
The hardware architecture of the ATCA platform fully complies with the PICMG 3.x standards,
and therefore is an open standard platform.
The hardware architecture of the CPCI platform complies with the PICMG 2.x (PCI industrial
computer architecture group) standards, but is modified based on the requirements of vendors.
The inter-subrack cascading of the ATCA platform is implemented through the internal
SWU/SWI boards. Therefore, the LAN switches used in the CPCI platform are not necessary in
the ATCA platform.
Hardware architecture (ATCA)Hardware architecture (ATCA)
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 13
Buses in the ATCA Platform Have Better Extensibility and Are More Compliant to the Standards
CPCI ATCA
H.110 bus Base bus
CPCI bus Fabric bus
Ethernet bus IPMB bus
TDM bus
Buses in the CPCI platform have limited bandwidth:
Bandwidth of the CPCI bus: 2 x 2 Gbit/s
Bandwidth of the H.110 bus: 256 Mbit/s
Bandwidth of the Ethernet bus: 24 x 100 Mbit/s
Buses in the ATCA platform have better extensibility and are more compliant to the
standards:
IPMB bus: It is the device management bus of the OSTA2.0 subrack. It monitors and manages the hardware
in a subrack.
Base bus: It is the bus of the management control plane. It provides a channel for software loading, alarms,
and maintenance.
Fabric bus: It is the data channel of the service plane. It is used to carry service-related information in the
system.
TDM bus: It is used to transmit the data of synchronization clocks and inter-board narrowband timeslots.
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 14
Chapter 2 Hardware DifferencesChapter 2 Hardware Differences
2.1 Hardware Architecture
2.2 Hardware Specifications
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 15
MSOFTX3000 Hardware (ATCA vs CPCI)Item CPCI ATCA
CPU Power PC 750GL, with a main frequency of
1 G
X86 series, 4-core, with a main frequency of
2.13 G
Number of CPUs
on each board
1 2
Memory 1 GB 24 GB
Cabinet dimensions
(Height x Width x
Depth)
N68E (2.2m x 0.6m x 0.8m) N68E (2.2m x 0.6m x 0.8m)
Subrack
dimensions
9U (height) 19" (width) 14U (height) 19" (width) integrated subrack
Maximum
configuration
Five cabinets with eighteen subracks Two cabinets with three subracks
Weight Smaller than or equal to 450 kg Smaller than or equal to 356 kg
Working voltage -48 V DC -48 V DC/-60 V DC
Working
temperature
5-40 degrees centigrade (long-term) -5-50 degrees centigrade (short-term)
5-40 degrees centigrade (long-term) -5-50 degrees centigrade (short-term)
Working humidity 5%-85% (long-term) 5%-90% (short-term) 5%-85% (long-term) 5%-90% (short-term)
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 16
Chapter 3 Background DifferencesChapter 3 Background Differences
3.1 OMU and BAM
3.2 LMT
3.3 Performance Measurement
3.4 CDR Browse
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 17
The OMU Provides More Functions Than the BAM
SN CPCI BAM ATCA OMU
1 Supports single-NE management Supports multiple-NE management
2 Run on a server (PC) Run on a board
3 Windows OS Linux OS
4 Supported northbound interface:
MML
Supported northbound interfaces: SNMP,
SOAP, MML, WEB, and FTP
The differences between the OMU and the BAM are as follows:
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 18
Chapter 3 Background DifferencesChapter 3 Background Differences
3.1 OMU and BAM
3.2 LMT
3.3 Performance Measurement
3.4 CDR Browse
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 19
The ATCA LMT Supports Layered Management
SN CPCI LMT ATCA LMT
1 Supports single-NE
management.
Supports multiple-NE management.
2 Supports single-layer interface
(The initial interface displayed
after the LMT is launched is an
MML interface).
Supports multiple-layer interface. You can right-
click and choose the CGP node, service and
charging node, MML, tracing, and monitoring.
3 The device panel contains a
uniform interface.
The device panel contains hardware panel and
software panel, displaying the hardware and
software status of the boards in a layered form.
4 You cannot check the status of
BAM processes through the
LMT.
You can check the status of OMU processes
through the LMT.
The differences between the ATCA LMT and the CPCI LMT are as follows:
Note: The CGP is a carrier-class software platform established on the hardware platform. It features high usability, high
performance, easy O&M, and easy integration. The CGP provides the following:
Hardware management and multiple-NE maintenance and management
Bottom-layer function components that support service process development
Environment that supports service process development
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 20
Interfaces of the ATCA LMT and CPCI LMT
ATCA LMT CPCI LMT
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 21
Chapter 3 Background DifferencesChapter 3 Background Differences
3.1 OMU and BAM
3.2 LMT
3.3 Performance Measurement
3.4 CDR Browse
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 22
The ATCA Softswitch Provides User-Friendly Web-Mode PM Client
SN CPCI PM ATCA PM
1 MML and GUI Web
2 Register PM tasks using MML
commands and GUI
Register PM tasks through the Web client
3 Register objects and tasks
together
Register tasks and objects separately
4 You can enter the registration
through the function sets.
You can enter the registration through objects
and function sets.
The differences between the ATCA PM client and the CPCI PM client are as follows:
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 23
Chapter 3 Background DifferencesChapter 3 Background Differences
3.1 OMU and BAM
3.2 LMT
3.3 Performance Measurement
3.4 CDR Browse
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 24
The ATCA iGWB Provides Web-Mode CDR Browse Interface
iGWB »°µ¥ä¯ÀÀ
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 25
Chapter 4 NMS DifferencesChapter 4 NMS Differences
4.1 NMS Management
4.2 Patch Operations
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 26
NMS Management
The figure on the left shows the NMS (network management system
/OAM)management in the CPCI platform. The NMS directly connects to the
MSOFTX3000 through the MML protocol. In this example, an NMS (M2000)
connects to three MSOFTX3000s.
The figure on the right shows the NMS management in the ATCA platform. The NMS
directly connects to the CGP through the MML and SOAP protocols and indirectly
connects to the MSOFTX3000. The CGP and the MSOFTX3000 are managed by the
NSM as a single entity. The NMS communicates with the MSOFTX3000 through the
CGP.
CPCI
BAM BAM BAM
CGP
MML MML+SOAP
M2000
ATCA
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 27
Chapter 4 NMS DifferencesChapter 4 NMS Differences
4.1 NMS Management
4.2 Patch Operations
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 28
The ATCA NMS Provides the Hot Patch Management Function
Compared with the NMS of the CPCI platform, the NMS of the ATCA platform
provides the hot patch management function.
Choose Software > Browser, as shown in the figure above. The Software Browser
window is displayed.
Click the NM Server tab and then choose the CGPOMU node. The patches available
on the NMS are displayed. These patches are for the chosen NE.
Click the NE tab and then choose a CGPOMU node. The patches available on the NE
are displayed. You can load, activate, and confirm the patches.
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 29
Chapter 5 O&M DifferencesChapter 5 O&M Differences
5.1 Installation
5.2 Configuration
5.3 Upgrade
5.4 Patch
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 30
Installation Differences Between ATCA and CPCI Softswitches
OS
The ATCA OMU uses the Linux OS.
The CPCI BAM uses the Windows OS.
Installation mode
In the ATCA platform, sever boards for the OMU and iGWB are pre-installed before delivery
according to the contract. The software of the service boards is loaded from the OMU.
In the ATCA platform, the INU4 windows solution is provided for installing the OS and
database on the OMU boards through PCs.
In the CPCI platform, the servers such as the BAM and iGWB are installed from the CD-
ROM. The software of service boards is loaded from the BAM.
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 31
Chapter 5 O&M DifferencesChapter 5 O&M Differences
5.1 Installation
5.2 Configuration
5.3 Upgrade
5.4 Patch
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 32
Configuration Differences Between ATCA and CPCI Softswitches Configuration entry points
All configuration commands in the CPCI platform have the same entry point.
A new entry point for the basic platform data configuration, that is, the CGP, is added in the
ATCA platform. Service data of the NEs is configured through the NE nodes in a layered
form.
In the ATCA platform, the iGWB is provided by a board. The iGWB-related configuration is
completed through the charging node on the ATCA LMT, ensuring a uniform entry point.
Configuration commands
The configuration commands for the service data remain the same for the ATCA and CPCI
softswitches.
The basic platform data configuration in the ATCA platform is consistent with the
international convention. For example, ADD SHF is changed to ADD RACK. For details
about the changed commands, refer to the software guides delivered with the equipment.
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 33
Chapter 5 O&M DifferencesChapter 5 O&M Differences
5.1 Installation
5.2 Configuration
5.3 Upgrade
5.4 Patch
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 34
Upgrade Differences Between ATCA and CPCI Softswitches ATCA upgrade mode
The ATCA platform provides an upgrade interface based on the WEBUI.
The ATCA platform supports seamless upgrade that only interrupt services for 10 seconds.
The ATCA platform supports the uniform upgrade of the iGWB, OMU, and host.
The ATCA upgrade can be prepared in advance. The formal upgrade takes only 10 minutes.
This minimizes the risks.
CPCI upgrade mode
The CPCI platform is upgraded through the BAM.
The CPCI platform requires more upgrade steps. The iGWB, XPTU, and BAM must be
upgraded separately.
The formal upgrade takes about 90 minutes.
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 35
Chapter 5 O&M DifferencesChapter 5 O&M Differences
5.1 Installation
5.2 Configuration
5.3 Upgrade
5.4 Patch
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 36
Patch Differences Between ATCA and CPCI Softswitches Format of patch files
Patch files are compressed in the ATCA platform, which saves the space of hard disks.
Patch uploading
In the ATCA platform, patch packages are directly sent to specified path of the OMU by the
SFTP tool on the client.
In the CPCI platform, patch files are saved to specified path on the BAM.
Patch loading
Patch loading is the same for the ATCA and CPCI softswitches.
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 37
Chapter 6 Function DifferencesChapter 6 Function Differences
6.1 Module Group Configuration
6.2 iGWB
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 38
The ATCA Softswitch Provides Module Groups
In the CPCI platform, a board is a module.
The CPCI platform provides boards with different functions, such as the WCCU and WBSG.
When a board is added, a module is configured at the same time.
In the ATCA platform, the software is separated from the hardware to make full use of
multiple cores and multiple CPUs.
Boards are separated from modules. A module group, which is composed by several
modules, is configured on a board. For example, GCU100 and VCU100 are two module
groups.
The configuration of modules is determined by the configuration of module groups. When a
module group is configured, modules are automatically configured and module numbers are
automatically generated.
In the ATCA platform, modules work in active/standby mode. Service boards except the
iGWB, OMU, SMM, and SWU no longer work in active/standby mode. This is similar to
subrack and board in the CPCI platform: subracks do not work in active/standby mode, but
boards work in active/standby mode. Normally, an active module is carried by two boards
that assist each other.
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 39
Typical Module Groups
A module in the ATCA is equal to a board in the CPCI.
Module group type contains the number of modules, module type, and information about the
CPU core to which the module is bound.
The MSOFTX3000 provides various types of module groups suitable for different
applications.
Description
General Control Unit 100 (you are advised to configure a pair of this module groups for each subrack of the VMSC)
General Control Unit 101 (you are advised to configure two pairs of this module groups for each subrack of the GMSC/TMSC)
VMSC Control Unit 100 (a module group for expanding the VMSC)
Module group
GCU100 GCU101 VCU100
Core 0 CCU CCU CCU CCU CCU CCU
Core 1 CCU CCU CCU CCU CCU CCU
Core 2 CCU CCU CCU CCU CCU CCU
Core 3 CCU CCU CCU CCU CCU CCU
Core 4 VDB BSG BSG CCU CCU
Core 5 VDB BSG BSG VDB BSG
Core 6 CDB CDB VDB BSG
Core 7 IFM IFM VDB BSG
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 40
Chapter 6 Function DifferencesChapter 6 Function Differences
6.1 Module Group Configuration
6.2 iGWB
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 41
iGWB Differences Between ATCA and CPCI Softswitches Hardware of the iGWB
In the CPCI platform, the iGWB is installed on two PC servers.
In the ATCA platform, the iGWB is installed on two boards.
Charging networking
In the CPCI platform, all CDR(received clock and data recovery ) files are stored on
the same iGWB server. The billing center obtains CDR files from this iGWB server.
The ATCA platform supports distributed management. Thus, CDR files are stored on
one to three iGWB boards. The billing center obtains CDR files from different iGWB
boards.
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 42
Chapter 7 Documentation DifferencesChapter 7 Documentation Differences
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 43
Documentation Differences Between ATCA and CPCI
Deleted Manuals New Manuals Remarks
BAM User
Manual
The BAM no longer exists.
Performance
Metrics
Reference
The related information is
provided in the performance
measurement Help.
Performance
Management
This manual describes how to
log in to and use the
performance management
system.
Operator Guide This manual describes the
functions, operation procedure,
and precautions of the client.
Administrator Guide This manual describes how to
manage the OMU system.
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 44
The ATCA Softswitch Provides CPI-Format Documentation (1)
Note:
The documentation is classified into five categories: 1. Exemption 2. Description manuals 3. Procedure or service scenario manuals 4. Reference manuals 5. Optional part
Principles:
1. According to international conventions, Library Information and Safety are added at the beginning.
2. The arrangement of manuals agrees with the general habit of readers. Generally, readers first read the description manuals to understand the equipment, and then operate the equipment by referring to the procedure or service scenario manuals and reference manuals.
3. Different target readers can find the manuals they need at the first opportunity. For example, Installation and Commissioning and Operation and Maintenance.
4. The optional part is provided to meet the special requirements. For example, User Manual is used to describe important features of the MSOFTX3000.
Level-1 titlesLevel-1 titles
HUAWEI TECHNOLOGIES CO., LTD. HUAWEI Confidential Page 45
The ATCA Provides CPI-Format Documentation (2)
Principles for arranging description manuals:The arrangement of description manuals conforms to the cognitive habit. Manuals are classified from system to product to OM functions based on the fault, configuration management, accounting, performance, security (FCAPS) principle.
Principle for arranging network deployment manuals:The main thread is the operation task flow of the engineering scenarios.
Principle for arranging network operation and maintenance manuals:The main thread is the FCAPS principle. Common key tasks are described.
Level-2 titlesLevel-2 titles
谢谢www.huawei.com