2-2 ZTE Radio Network EMS - ZTE NetNumen U31 Product Description

NetNumen™ ZTE Description

U31

Product

ZTE NetNumen™ U31 Product Product Description Description

ZTE NetNumen™ U31 Product Description Version

Date

Author

V1.0

2014/10/09

Li Xiaojuan

V1.11 V1.11

2015/01/09

Li Xiaojuan

Reviewer

Notes

First Release Modify Corba interface description; Modify Configuration part

© 2015 ZTE Corporation. All rights reserved. ZTE CONFIDENTIAL: This document contains proprietary information of ZTE and is not to be disclosed or used without the prior written permission of ZTE. Due to update and improvement of ZTE products and technologies, information in this document is subjected to change without notice.

ZTE Confidential & Proprietary

1

ZTE NetNumen™ U31 Product Description

TABLE OF CONTENTS

2

1

Overview ............................................................................................................ 4

2

Highlights........................................................................................................... 4

3 3.1

System Architecture.......................................................................................... 6 NetNumen TM U31 Product Portfolio ...................................................................... 7

3.2 3.2.1 3.2.2 3.2.3 3.3

NetNumen TM U31 Networking & Operation .......................................................... 8 LAN Networking ................................................................................................... 9 Remote Networking ........................................................................................... 10 Meta-frame Solution ........................................................................................... 11 NetNumen TM U31 Server Configuration ............................................................. 12

3.4 3.5 3.5.1 3.5.2 3.5.3

NetNumen TM U31 Client Configuration ............................................................... 13 Northbound interface ......................................................................................... 14 CORBA .............................................................................................................. 14 DB ..................................................................................................................... 14 FTP.................................................................................................................... 15

3.5.4

SNMP ................................................................................................................ 15

4

Features and Functionalities .......................................................................... 16

5 5.1 5.2 5.3

System Reliability ............................................................................................ 21 Backup & Restore Solution ................................................................................ 21 High Availability Solution .................................................................................... 23 Disaster Recovery Solution ................................................................................ 24

5.4 5.5

Operation Security ............................................................................................. 25 Software Reliability ............................................................................................ 25

6 6.1 6.2 6.3

Technical Specification ................................................................................... 26 Performance Indices .......................................................................................... 26 Physical Dimensions .......................................................................................... 27 Power Supply..................................................................................................... 28

6.4 6.4.1 6.4.2 6.4.3

Environment....................................................................................................... 29 Grounding Requirement ..................................................................................... 29 Temperature and Humidity ................................................................................. 29 Cleanliness Requirement ................................................................................... 29

6.4.4

Lighting .............................................................................................................. 30

7

Acronyms ......................................................................................................... 30



FIGURES Figure 3-1

NetNumen™ U31 Software Architecture ............................................................ 6

Figure 3-2

NetNumenTM U31 Hardware Architecture ......................................................... 7

Figure 3-3

NetNumen™ U31 typical Networking ................................................................. 8

Figure 3-4

LAN Networking................................................................................................10

Figure 3-5

Remote Networking ..........................................................................................10

Figure 3-6

Meta-frame Networking.....................................................................................11

Figure 5-1

Backup & Restoration Solution .........................................................................22

Figure 5-2

High Availability Solution...................................................................................23

Figure 5-3

Disaster Recovery Solution...............................................................................24

TABLES Table 3-1

NetNumenTM U31 IBM Hardware Configuration .................................................12

Table 3-2

NetNumenTM U31 SUN Hardware Configuration ................................................13

Table 3-3

Software Configuration for Server ......................................................................13

Table 3-4

Minimum Hardware Configuration for NetNumen TM U31 Client ..........................13

Table 3-5

Software Configuration for Client .......................................................................14

Table 6-1

NetNumen™ U31 Processing Capacity for Each RAT .......................................26

Table 6-2

Performance Indices of NetNumen™ U31 .........................................................27

Table 6-3

NetNumen™ U31 Rack Dimension ....................................................................27

Table 6-4

Typical NetNumenTM U31 requirements on Ground ...........................................27

Table 6-5

NetNumen™ U31 DC Power Supply Requirements ...........................................28

Table 6-6

NetNumen™ U31 AC Power Supply Requirements ...........................................28

Table 6-7

NetNumen™ U31 Power Consumption Indices ..................................................28

Table 6-8

NetNumen™ U31 Grounding Requirements ......................................................29

Table 6-9

Requirements on Temperature and Humidity .....................................................29

Table 6-10

Requirements on Dust Content and Particle Size.............................................29

Table 6-11

Restriction of Harmful Gas ...............................................................................30


3


1

Overview NetNumen

TM

U31 is ZTE’s unified network operation and management system in

Network Element layer (hereinafter short as NEs) in mobile networks, capable of managing multiple radio access technology networks simultaneously including GERAN, UTRAN, FDD and TDD LTE radio networks. NetNumen

TM

U31 provides various managements on radio equipment such as fault

management,

performance

management,

configuration

management,

software

packages management, security management, topology management, log management and etc, which is fully compliant to the international telecommunication specifications. In addition, NetNumen

TM

U31 also provides rich optional functions such as northbound

interface, meta-framing networking, Enhanced Report Management, integration with 3

rd

party backup and restoration solutions, and CBC solutions (GERAN&UTRAN). NetNumen

’

TM

U31 system is developed based on ZTE s unified network management

platform architecture and adopts J2EE which is available on various operating systems which makes NetNumen

TM

U31 system have higher reliability. Services are independent

from data storage which is compatible with various types of database, and the services development, upgrade, activation and de-activation has no impact against data storage, and it is easy to expand existing NetNumen

TM

U31 system from single mode to

multi-mode during network evolution and upgrade.

2

Highlights NetNumen™ U31 is a unified element management system in radio network, capable to provide consolidated network operation and maintenance for all ZTE equipments and networks. It has the following benefits: High-efficient Centralized EMS System 

Centralized management of multi-RAT network equipments, it can manage GERAN, UTRAN, FDD & TDD LTE equipments simultaneously, reducing CAPEX and OPE X.



The JAVA/J2EE platform-based design is convenient for operators to select different hardware & software platforms.

4





Smoothly integration with the management system of IT/IP equipment and software systems such as routers, Ethernet switches, firewalls, servers, OS, DB, HA to implement centralized network management system.



Support of various types of northbound interfaces: CORBA, DB, FTP, and SNMP. NetNumen

TM

U31 can be integrated to upper-layer systems through these

interfaces, to build the BSS/OSS system. 

Unified configuration management and data consistency checking functions to guarantee configuration consistency.



Network health check and intelligent in-process inspection of full-network equipment to lower O&M cost.

Advanced Network Security 

Strict access rights control, hierarchical and role-based management strategies, authorized network views, and complete log records.



Secure networking solutions to prevent malicious attacks with the support of all IPSec, SSH, and SFTP protocols.



Various disaster recovery & backup solutions: the local high-availability cluster to provide hot backup policy, and remote disaster recovery to ensure high network data security.



LDAP interface to 4A server provides account management and accessing authentication. NetNumen™ U31 supports account management via this interface based on JDNI and LDAP V3, including account creation, modification and deletion, right group creation, modification and deletion.

Intelligent Networking and Flexible Network O&M 

GUI, MML and Web (Citrix access) modes to adapt to different application requirements, user behavior, networking requirements, bandwidth limitations and etc.



Daylight saving time management meets the time management requirements of different time zones.


5




Various Report templates. In addition to some built-in Report templates, users can customize their own report templates as needed.



The Enhanced Report Management (ERM) module is a flexible, rich format report generation subsystem. It can fulfill the quick changed/complicated format report requirements, extract data from many EMSs running fitful version, and export joint reports.

Integrated Tools Enhancing Service Efficiency 

End-to-end protocol tracing tool supports various types of NEs, multiple signaling tracing methods and presentation modes. The end-to- end trace tools help operators to improve daily O&M efficiency and streamline the subscriber complaint settlement workflow, end-to-end tracing tool needs to interface with Core network, CTS can interface with other vend ’s Core network.



ZTE SON solution improves the operational expense (OPEX) efficiency for multi-radio access technology (RAT) and multi-layer mobile networks, enabling operators

to

increase

throughput

requirements

and

implement

long-term

development in multi-RAT networks.

3

System Architecture The following figure shows NetNumen

Figure 3-1

6

TM

U31 software architecture:

NetNumen™ U31 Software Architecture



3.1

TM

NetNumen NetNumen

TM

U31

U31 Product Portfolio is

located

in

the

Element

Management

Layer

in

TMN

(Telecommunication Management Network) model, integrating with the base stations in GERAN, UTRAN, FDD & TDD LTE networks via southbound interface and integrating with upper level 3th NMS (Network Management System) via northbound interface. NetNumen

TM

U31 employs the C/S mode, consisting of server, clients, disk array and

other transmission equipments. Alarm box are optional. The following figure shows the NetNumen

Figure 3-2

TM

U31 hardware architecture.

NetNumenTM U31 Hardware Architecture

The two servers in the architecture are in active/standby mode. The NetNumen ™ U31 servers are from main stream vendors. The requirements of processing capacity of the server depend on the network scale. NetNumen™ U31 is a multi mode Operation & Management system, and it can manage the following radio access networks elements simultaneously:


7




BSC and BTS in GSM radio network



RNC and Node B in UMTS radio network



eNodeB in FDD LTE radio network



eNodeB in TDD LTE radio network

The software of the server is multi-RAT capable, managing GERAN, UTRAN, FDD & TDD LTE simultaneously. The northbound interface to NMS is open interface, and can be used for integration smoothly with 3th part y NMS system. The southbound interface to radio network is proprietary interfaces.

3.2

TM

NetNumen

U31 Networking & Operation

NetNumen™ U31 deploys very flexibility to satisfy needs of various operators, it can operate by centralized operation, Operator can manage NetNumen™ U31 system in province or city.

Figure 3-3

8

NetNumen™ U31 typical Networking



Central room in Province NetNumen U31

TCP/IP

Client

Client

A City

A City room BSC/RNC

TCP/IP

Client

3.2.1

client

eNodeB

NodeB

LAN Networking LAN networking is the simplest and the most common networking mode. All NetNumen

TM

U31 Server, Client and radio network equipments are placed inside one

LAN. This networking mode requires NetNumen

TM

U31 and network equipments

deployed in the same physical location. The following figure shows the networking of NetNumen

TM

U31 managing BSCs and

RNCs simultaneously in a local LAN network.


9


Figure 3-4

LAN Networking

Few types of transmission equipment are required for LAN networking, only several 100M/1000M adaptive HUB and switches are needed.

3.2.2

Remote Networking If some network equipments are deployed in different physical locations and the physical locations are in different LAN, the remote networking should be adopted to inter-connect these LANs. The following figure shows one NetNumen

TM

U31 server manages three set

BSC/RNCs and one eNodeB which are deployed in three separated LANs:

Figure 3-5

10

Remote Networking



There are three LANs in the network, and NetNumen The NetNumen

TM

U31 server is deployed in LAN 1.

TM

U31 clients in LAN 2 and LAN 3 can operate the whole GSM & UMTS

& LTE radio network via remote accessing.

3.2.3

Meta-frame Solution Citrix provides remote access software for delivering applications over a network or internet for enterprises, government and educational institutions. Citrix Access Suite™ is the most complete solution available for providing secure, on-demand access to NetNumen

TM

U31 system – anywhere, with any device, over any network. Basically Citrix

Presentation Server™ and Citrix Password Manager™ are included in the Citrix solution. The following figure shows the networking between Citrix and NetNumen to extend NetNumen

Figure 3-6

TM

TM

U31 system

U31 client to user’s desktop.

Meta-frame Networking

In this solution, NetNumen™ U31 clients are installed on the Citrix server. Citrix clients are connected to the NetNumen™ U31 server through the NetNumen™ U31 clients. Multiple Citrix servers can form a Farm, providing services in a joint effort so that load balancing is achieved.


11


User s don't need to install NetNumen™ U31 clients in the local terminal, instead of a Citrix client which is a software application with the size of 2MBytes about. An ICA Session is created Between Citrix clients and Citrix servers, with that the Citrix clients

access the NetNumen™ U31 clients running on the Citrix servers and login to the NetNumen™ U31 servers. NetNumen™ U31 clients request many system resources. A single Citrix server, however, allows a limited number of concurrent access requests. To solve this problem,

we choose to publish the NetNumen™ U31 clients on all Citrix servers in a Farm. Therefore through the auto load balancing finally, the numbers of concurrent accesses are enlarged greatly.

3.3

TM

NetNumen

U31 Server Configuration

The hardware of NetNumen

TM

U31 system is the server from main vendors, such as IBM,

SUN, HP and DELL. Generally NetNumen ™ U31 server is compatible with all types of servers. Depending on the network scale and services, the server type, the number of CPU, the size of hard disk and the size of memory will be different. The choice of server and hardware should be fully verified in laboratory before commercial utilization. For example, the following table shows verified server configuration for active NetNumen™ U31 server based on IBM and SUN server.

Table 3-1

NetNumen

TM

U31 IBM Hardware Configuration

Network Scale (Cells) Server

P7 740 6C32G 4.2GHzCPU P7 740 6C64G 4.2GHzCPU P7 740 6C96G 4.2GHzCPU P7 740 8C96G 4.2GHzCPU P7 740 8C128G 4.2GHzCPU

12

<5000

>5000

>10000

>15000

>20000

<10000

<15000

<20000

<30000

    



Table 3-2

NetNumen

TM

U31 SUN Hardware Configuration

Network Scale (Cells) Server

SUN T4-1 8C32G 2.85GHzCPU

<5000

>5000

>10000

>15000

>20000

<10000

<15000

<20000

<30000

 











The following Database and Operation System is recommended.

Table 3-3

Software Configuration for Server Object

Server Configuration

Operation System

AIX/Solaris/Linux

Database

Oracle/SysbaseIQ

Redundancy Solution

Power HA/VERITAS

NetNumen

TM

U31 can manage 100,000cells using blade server.

ZTE blade server used distributed solutions, dividing into alarm module, performance module, TOPO module and etc. This can fully utilize physical resource, and improve handling efficiency.

3.4

NetNumenTM U31 Client Configuration The minimum hardware configuration of Client for PC workstation is shown below:

Table 3-4

Minimum Hardware Configuration for NetNumen Object


TM

U31 Client

Configuration

13


CPU

> dual-core

Memory

>= 2G

Built-in Hard Disc

>=80G

Software configuration for NetNumen

Table 3-5

TM

U31 Client is shown below:

Software Configuration for Client Object

Operation System

MS Windows2003 above/Linux

Document

MS Office2003 above/Acrobat reader

Browsing Tool

Anti-virus Software

3.5

Configuration

MacAfee/Norton/ Trend

Northbound interface Several options are available for NetNumen

TM

U31 system integration with NMS system,

final decision is based on actual requirements.

3.5.1

CORBA CORBA (Common Object Request Broker Architecture) is a standard object-oriented application program system specification established by OMG. CORBA comprises the Object Request Broker (ORB), object service, public facilities, domain interfaces, and application interfaces. The core of CORBA is the ORB, which provides a mechanism by which objects can transparently send requests and receive response.

3.5.2

DB DB is one way interface to view the data in the database, and can be used for Performance management and Fault management (GERAN & UTRAN). With DB interface, NMS can get, display and analyze the performance data. NetNumen

TM

U31 provides the table view of each counter, user name and password of

the interface, but not opens the database directly.

14



The interface also enables NMS to get alarm view data. NMS can get and show the alarm data. NMS gets data in active mode. NetNumen

TM

U31 provides the user name

and password of the interface, but not opens the database directly. NMS only has the read priority on these views. NMS may ensure the alarm view of NetNumen

3.5.3

TM

U31 through SQL statement.

FTP File Transfer Protocol (FTP) is a bidirectional transfer protocol. The NetNumen™ U31 adopts FTP as the NBI protocol for transferring mass data files such as performance data files, inventory files, configuration files and topology/resource data files. FTP has the following characteristics:

3.5.4



Supports the file transfer between different operating systems.



Supports mass data transmission.



Embraces high reliability.



Exhibits moderate security.

SNMP Simple Network Management Protocol (SNMP) is a simple network management protocol established by IETF, which has become the industry standard of network management. Based on a manager/agent model, the SNMP protocol adopts a Management Information Base (MIB) and a relevant command set for information interaction. In addition, SNMP Trap indicates the active message reporting mechanism of SNMP. SNMP has the following characteristics: 

SNMP features simple design, high scalability, and easy use.



SNMP supports various mature standard-compliant MIBs and thus supports wide application.


15




SNMP transmission is based on UDP and thus is highly efficient and independent.



SNMP enables easy reporting of events, alarms, and messages.

The functions of SNMP in NetNumen ™ U31 are to report alarm to NMS layer and do alarm synchronization. Currently the NetNumen

4

TM

U31 supports SNMP version of V1, V2c and V3.

Features and Functionalities The main functions of NetNumen

TM

U31 includes fault management, configuration

management, performance management, security management, topology management, system management, software management, signaling tracing, northbound interfaces, and etc. Topology Management The topology management of the NetNumen™ U31 system provides a visual network topology map and NE relationship. The main GUI has a tree view for NE organization display/select and a graphic aero for main display. The graphic aero will show the detail info of selected node. If the selected node is whole network or a sub network, the graphic aero shows NE/Sub-network/NE group distribution, user can click the icon to change the selected node and entry new detail info. The graphic aero supports zooming, searching, cascading display. User can define background map and the mode of icon arrange of each node. User can define that status info, alarm counter or KPI info show with the icon in graphic aero. User can select a NE from tree view or graphic aero and entry CM/PM/FM GUI to certain NE, to change configurations, check statuses, handle alarms, get reports and make other operations. User can customize the interface setting as his like, for example the icon size, color setting, and size. NetNumen™ U31 client GUI interface supports ToolTips function. When the mouse stops at the tools icon, there will be a tip to explain the use of the icon. Configuration Management The configuration management of the NetNumen™ U31 system can manage ZTE’s

16



various type of GERAN, UTRAN and eUTRAN NE, include BSC, RNC, BTS, Node B, eNode B, multi-modes BS (SDR). The configuration management provides functions to adding, deleting, modifying and

querying whole network’s configuration data. Combined with topology management, user can do these jobs conveniently.

NetNumen™ U31 supports online and offline data modify, multi data plane for parallel work, status management and secure variable management. Fault Management Fault management of NetNumen™ U31 provides last functions: 1.

Monitor current status and alarms of NE equipment & logical unit in real time.

2.

Provides alarm query and suggestions to handle faults.

3.

Provides alarm filter and correlation process to reduce amount of alarm or find the root/most important alarm.

4.

Provides knowledge DB to record the history experiences of alarm handling.

5.

Provides diagnose tools to help user make certain which is the real problem of network.

6.

Provides alarm trigging script makes system can react to certain alarm with pre-defined MML script to solve problem quickly and automatically.

Fault management also integrate with topology view to make user check alarm status via icon color and alarm counter via popup display. It also possible to select a NE from topology view and guide to alarm list/rack map of this NE. Performance Management Performance management functions of NetNumen™ U31 are used to gather performance data from NE, analysis and illustrate to operator. User can manage measurement tasks to control gathering perf ormance data process. By setting data storage period, user can keep it sufficient to maintain network and clear old data to keep system long-term running.


17


User can set formula to calculate PI & KPI, it can be used to monitor QoS index or make reports. For QoS monitor, user need to set QoS jobs, system will gather data and calculate index periodically and raise alarm events automatically. The real time PM query makes user can get PM data instantly or monitor certain KPI continuously. Usually use to quickly evaluate network performance when configuration changed or monitor important cell. Software Management Software management function use to control software of NE and NetNumen™ U31 system. To manage NE software, NetNumen™ U31 stores multi software version in system. User can choose certain version to download to NE, which stores one or more software version in its memory, and active one version stored in NE. NetNumen™ U31 will prepare fitful configuration data and download to NE with the active process.

NetNumen™ U31 supports to query current running version on NE and check is it fit with assigned version on EMS.

NetNumen™ U31 supports the software management of itself. User can install, recover and upgrade software of NetNume n™ U31. System Management System management of NetNumen™ U31 uses to help administrator of NetNumen™

U31 to maintain it. The security and log part of system do not listed in this chapter, these two parts is also useful to administrator. Administrator can use system management functions to 1.

Backup/restore system

2.

Check system status and connect condition of NEs and clients.

3.

Adjust time of whole network via NTP

4.

Management license of whole network

Security Management Security management makes administrator of NetNumen™ U31 can management the

18



security policy and setting of NetNumen™ U31 system, include NetNumen™ U31 server hardening, IP network design and transmission security in NetNumen™ U31 and between NetNumen™ U31 and managed NE.

NetNumen™ U31 provides user management, user authorization and access authentication, these functions are important to make system can be used safely and smoothly. Log management uses to check the problem of NetNumen™ U31 executing and check operations to audit the usage of system. Trace Management Trace management is important to find out network problem by get / illustrate / analysis signaling and internal events from NE. ZTE solution of trace management includes two part local trace and globe trace. Local trace directly connects to BSC/RNC or eNodeB gets signaling and internal events, to support single node tuning and trouble shooting. Globe tr ace gets signaling and standard events from all NE of the network, to supports long time supervise of whole network. The globe trace is going to follow 3GPP 32.42X specifications at 2014. Local trace tools are part of NetNumen™ U31. RCT is use to trace GSM, and UMTS, it connect to BSC/RNC and can trace NodeBs and cells within the RAN. UDT is use to trace FDD-LTE and TDD-LTE, it connect to the eNodeB and get the trace and event from it.

Globe trace called “CTS” is a standalone product. Current version is an exclusive system only can connects to ZTE NEs and trace it. There are no chance to integrate with other

vendor’s equipment and no open interface to other post analysis system. ZTE is planning to upgrade CTS to follow 3GPP 32. 42X, it will have three parts: trace control, TCE and post analysis. TCE collect events and provide the results to post processor in standard file format. The trace control and post analysis part of CTS can

integrate with other vendor’s equipments / TCE, with certain interface adapter. Inventory Management The inventory management of NetNumen™ U31 collects the hardware and software inventory info from current network. User can manually input inventory info for dumb equipments like RF combiner and antenna. It supports user query the inventory info, statistical and report. It also supports output the query results to files or input manually


19


input inventory info from file. The inventory data can be collected from NE by MML command user can choose the granularity by EMS or NE. Inventory management can periodically execute it and update the database. A message will be generate by EMS, NE or License center when inventory info changes. The situation includes NE reboot / reconnect, circuit pull out or plug in, the software has upgraded, license usage changed and other events. Inventory management records these messages and updates the current data. Tools These tools use to support O&M operations. Health check and stability report makes it easy to evaluate the network condition and the maintain workload. MML command terminal use to simplify the usage of MML. The online help supports to get certain usage info and management information structure when user using GUI or MML. O&M Infrastructure The NetNumen™ U31’s O&M infrastructure is use to fit the high available requirements from operator. It includes the NetNumen™ U31 server local high availability, remote disaster recovery, data backup and restore. The O&M infrastructure also includes the Access Mode except the client of NetNumen™ U31. There include telnet mode and WEB client via Citrix solution. Other Function Modules Other functions and features include Enhanced Management Report, Integrated Configuration Management, Internal CBC (GERAN&UTRAN)and etc. The Enhanced Report Management (ERM) module is a flexible, rich format report generation subsystem. It is based on BO report engine, and can fulfill the quick changed/complicated format report requirements, can extract data from many EMSs running fitful version, and export joint reports. Integrated Configuration Management (ICM) is application which provides the whole network configuration management, and can use in multi-EMS situation. It is also useful

20



to manage large-scale network by supporting parallel modification with multiple planning area functions. Internal Cell Broadcasting Center (CBC) offers the basic operational function which includes message edit, message send and message query. Meanwhile, CBC can provide the planning and management function of CBC service.

5

System Reliability

5.1

Backup & Restore Solution Backup & restoration solution of NetNumen

TM

U31 System is to rescue the system failure

or unexpected problems, possibly as shown in the following scenarios: 

NetNumen™ U31 System Collapse



OS Collapse



NetNumen™ U31 application Collapse



DB Collapse or some DB file lost.

ZTE NetNumen

TM

U31 System Backup and Restore Solution are based on third party

hardware and software. The backup solution supports to set backup policy for the backup of the complete data of NetNumen

TM

U31 server, including system file, database file and

application file. Using this policy, NetNumen

TM

U31 server can backup files during low

system load, usually in the night, the data could be backup without shutting it down into single user mode.


21


Figure 5-1

Backup & Restoration Solution

NetNumen

TM

U31 Server

Backup Server Switch

1000M

Fiber

Fiber

Disk Array NetNumen

Tape Library

TM

U31 backup and restoration solution includes active NetNumen

Server, backup NetNumen

TM

U31

TM

U31 Server, disk array, and tape library. And network use

dual 1000M switch LAN. The backup & restoration solution is based on third party software. This software supports three backup & restoration modes: 

Full Backup: In a full backup, all of the Primary Storage on a target system is backed up. The data backed up in a Full Backup includes file data such as directories, folders, filenames, file attributes, access control lists and other security information.



Cumulative Incremental Backup: A Cumulative Incremental Backup will back up the files that have been modified or created since the most recent lower level backup (level n-1 or lower).



Differential Backup: A special type of Cumulative Incremental Backup copies the files that have been modified or created since a previous Full Backup.

The execution of backup & restoration solutions can be in manual operation or automatically scheduled by system, and backup contents can be OS and application data, NetNumen

22

TM

U31 system and application data, and Database.



5.2

High Availability Solution NetNumen™ U31 High Availability solution is to guarantee the availability of software and hardware. NetNumen™ U31 Availability Solution is based on third party hardware and software, including Active Server, Standby server, and disk array. The networking is shown in the following figure.

Figure 5-2

High Availability Solution

In ZTE High Availability Solution, the active server and standby server are installed with third party High Availability software, and use network to detect the status of active server and network card. Between active server and standby server, there are two heartbeat lines at least, these heartbeat lines provide detect function, include the operating system software and hardware, network communications and applications running, etc. Once the other host is not running properly, the fault device on the application will stop running, the standby device will start same application which running on fault device, and take over all the application which running on fault device, and also including the I P address automatically, without human intervention.


23


5.3

Disaster Recovery Solution Disaster Recovery solution is to deploy NetNumen ™ U31 servers in separated physical locations to improve whole system redundancy. Disaster Recovery Solution can be used in the following scenarios: 

Software failures scenarios



Hardware failures scenarios



Equipment room disaster, fire, earthquake or flood for example

ZTE NetNumen™ U31 System High Availability Solution is based on third party hardware and software, includes Active NetNumen

TM

U31 Server, Standby NetNumen

TM

U31 server, and disk array. The networking is shown in the following figure.

Figure 5-3

Disaster Recovery Solution

ZTE Disaster Recovery solution adapts dual NetNumen

TM

U31 system for 1+1 backup,

including active server, active disc array, standby server and standby disc array. Active server use fiber to connect with active disc array and standby server also use fiber to connect with standby disc array. Transmission network adapts dual lines, both lines are used as data backup line and heartbeat line. When network cards or network is failure, it will automatically switch to another device on standby to return to work.

24



In ZTE Disaster Recovery solution, between active system in site A and standby system in site B, there are dual heartbeat lines, and transition network can use IP or Fiber. And these dual heartbeat lines provide detect function, include the operating system software and hardware, network communications and applications running, etc. Once the other host is not running properly, the fault device on the application will stop running, the standby device will immediately start same application which running on fault de vice, and take over all the application which running on fault device, and also including the IP address automatically, without human intervention. After disaster in site A is recovered, the whole system data needs to rollback. Data reverse replication copies only the changed data during disaster, unless all of the data is lost, it not need to reverse replication all of the data.

5.4

Operation Security NetNumen

TM

’

U31 sets users authorities by role and user management. System

combines various operations (such as add MO, delete MO, modify attribute, alarm view, ’

and so on.) and NE modules to set users authorities, which can be accurate to certain ’

operation in certain NE. Users authorities check mechanism is set in server, which ’

checks all operations user made. Those operations that do not pass the check won t be executed. User locked feature is also provided. Invalid user could be locked and not allowed to log on the system. Customized setting on user logon, user password, user expiration data, IP address check, and so on is allowed, for example, users who fail logging on over 3 times will be locked. In addition, Operation log, system log, and security log are traced and recorded in the system. Query of logs based on different conditions, export and print of logs are supported. Log policy is also provided.

5.5

Software Reliability Several methods are available to monitor software reliability of NetNumen ™ U31 server: 

Link check mechanism: heartbeat check mechanism is adopted between Client and Server, Server and NE, up-level NMS interface and NMS to check the


25


communication status of links periodically. No alarm message of link between NE and Server will be occurred. 

Version check mechanism: it is adopted between Client and Server, Server and NE to check their versions ’ consistency. Inconsistent software version fails to connect them normally. Meanwhile, language check will be performed between Client and Server. If languages they use are different, they cannot be connected normally.



Access Control List: System controls and sets IP address restriction of Client and superior NMS by accessing IP (port) of security management module, certain IP address will not be allowed to log on, improving system security.



Alarm Message: When services and process of Server go wrong, system generates alarm messages.



Node Hardening: it offers a number of recommendations and scripts in order to protect network nodes from accidental and malicious operations, and ensures confidentiality, integrity and availability of OS/DB. rd

In addition to this, the operator can also install 3 party security software like SSL, SFTP, anti-virus and etc. other security software need to be verified by ZTE Corporation before installation. Firewall is also needed to prevent system from external illegal attacks.

6

Technical Specification

6.1

Performance Indices The following table shows NetNumen ™ U31 maximum processing capability for each single RAT.

Table 6-1

NetNumen™ U31 Processing Capacity for Each RAT Items

Maximum processing capability for UMTS

26

Index 100000 Cells



Maximum processing capability for GSM

250000 TRXs

Maximum processing capability for FDD LTE

100000 Cells

Maximum processing capability for TDD LTE

100000 Cells

One UMTS/FDD LTE/TDD LTE cell occupy equivalent resources as 2.5 GSM TRXs in NetNumen™ U31 system. The following tables show storage reliability capabilities:

Table 6-2

Performance Indices of NetNumen ™ U31 Items

6.2

Index

MTBF (HA solution)

6480 hours

MTTR (HA solution)

0.5 hours

Availability indicator (HA solution)

0.99992

Physical Dimensions Server and disk array of NetNumen

TM

U31 adopt rack-mounted devices, installed inside

standard 19” rack. Client employs PC or workstation which is fully compliant with industrial standards.

Table 6-3

NetNumen™ U31 Rack Dimension Item

Value 2000 mm, without footprint margin;

Height

2100 mm, with footprint margin.

Dimension (mm)

Width

600

Depth

1000

’

Rack s weight depends on actual configuration, and the following table shows typical weight and the according requirements on ground.

Table 6-4

Typical NetNumen

TM

U31 requirements on Ground Item


Value

27


≤300 kg

Weight of Rack Primary equipment room

≥450 kg/m

2

Other than primary equipment room

≥300 kg/m

2

Ground Weight Capacity

6.3

Power Supply The power supply of NetNumen ™ U31 system can be in DC or AC.

Table 6-5

NetNumen™ U31 DC Power Supply Requirements Item

Value

Working power supply

-48 V

Voltage range

-57 V~-40 V

Voltage output ripple

< 200 mV

Table 6-6

NetNumen™ U31 AC Power Supply Requirements Item

Working power supply

Value 220 V,110V 50 Hz

Voltage range

176 V~264 V

Voltage frequency range

45 Hz~65 Hz

Power consumption is different due to different hardware servers, and the following table shows power consumption for the servers from IBM.

Table 6-7

NetNumen™ U31 Power Consumption Indices Item

Operational current

Value

≤35 A Power 740 (6C 4.2GHz,32G)

248 W

Power 740 (6C 4.2GHz,64G)

312 W

Power 740 (8C 4.2GHz,96G)

342 W

Power 740 (8C 4.2GHz,118G)

374 W

System Power consumption

28



6.4

Environment

6.4.1

Grounding Requirement

Table 6-8

NetNumen™ U31 Grounding Requirements Item

6.4.2

Value

Rack pick-up resistance

0.1 Ω~0.3 Ω

Ground resistance

≤1 Ω

Temperature and Humidity

Table 6-9

Requirements on Temperature and Humidity Temperature

Equipment

NetNumen

TM

U31

Relative Humidity

Long Term

Short Term

Long Term

Short Term

Operation

Operation

Operation

Operation

0 °C~40 °C

-5°C ~ 45°C

20%~90%

5%~95%

Note 1: Measurement point of operating temperature and humidity in equipment room refers to the measurement made when no guide plates in front and back of rack, and where 1.5m above the floor and 0.4m away from the front of the rack. Note 2: Short term operation refers to continuous operation less than 48 hours and accumulated operation every year less than 5 days.

6.4.3

Cleanliness Requirement Dust could hazard electrostatic equipment, which makes poor contact of socket ’

connector, impacting equipments life time and causing failure easily.

Table 6-10

Requirements on Dust Content and Particle Size Item

Value

Max diameter (μm)

0.5 3

Max consistency (particle count/m )


1 5

14×10

3 5

7×10

5 4

24×10

3×10

4

29


Requirements on salt, acid and sulfide content in air are required. These hazardous substances accelerate metal erosion and aging process of some parts. Equipment room should be prevented from harmful gas intrusion such as SO2, H2S, NH3, NO2, etc.

Table 6-11

Restriction of Harmful Gas

Name

6.4.4

Average (mg/m3)

Max (mg/m3)

SO2

0.2

1.5

H2S

About 0.006

0.03

NO2

0.04

0.15

NH3

0.05

0.15

Cl2

0.01

0.3

Lighting Prevent direct sunlight from aging deformation of circuit board. Average illumination is 300 LX~450 LX free from glare.

7

Acronyms Acronyms

30

English

CORBA

Common Object Request Broker Architecture

EMS

Element Management System

ERM

Enhanced Report Management

FM

Fault Management

GSM

Global System for Mobile Communication

GUI

Graphical User Interface

MML

Man Machine Language

MTBF

Mean Time Between Failures

OMC

Operations & Maintenance Center

OMCR

Operations & Maintenance Center –Radio

OMM

Operation Maintenance Module

TCP/IP

Transmission Control Protocol/Internet Protocol


2-2 ZTE Radio Network EMS - ZTE NetNumen U31 Product Description

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