Network Management Tool Architecture For Heterogeneous System Computer Science Essay

Network direction is concerned with observing, monitoring, proving, configuring, and trouble-shooting the different web constituents and users. The direction procedure wraps all the web elements get downing from the users, through the systems applications and informations till the terminal systems and low web substructure. Three chief facets form the whole NM country viz. : Human where human troughs define the organisation attacks and its constituents, Methodology which draw the NM architecture and defines the maps to be run, and the Instrumentation facet which contains system information aggregation, processing and coverage, and anticipation of web likely jobs. Figure 1 shows those three facets.
NM purposes to give the web directors a complete position of the whole web through a envisioned web direction tool ( NMT ) . The direction maps that can be managed by such tool are divided by the International Organization for Standards ( ISO ) [ 1 ] into five classs: Mistake, Configuration, Accounting, Performance, and Security as shown in Table 1.
Table 1: FCAPS maps

Class

Undertaking

Fault Management ( FM )

Detection, isolation and rectification of unnatural operations.

Configuration Management ( CM )

Maintains an accurate stock list in a changing environment and consistence of operating parametric quantities.

Accounting Management ( AM )

Measures web use and compute charges for that use.

Performance Management ( PM )

Concerned with garnering statistics, mensurating use of resources, tuning, etc.

Security direction ( SM )

Controls entree to services, web substructure and the direction system itself

An illustration of NM application is shown in figure 2 where a user interface used to pull off all the maps for Software, Hardware, Firmware, and Users every bit good.

Most of the bing Network Management systems are developed in an single manner, where each system grows with minimal consideration of other systems, which creates many systems with low degree of communicating among them. The most used protocols in NM systems are:

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SNMP ( Simple Network Management Protocol ) is an IETF deserter criterion known as RFC ( Requests For Commands ) . SNMP is a model for pull offing internet device utilizing the TCP/IP protocol suite [ 4 ] . The SNMP direction theoretical account contains a direction workstation where the direction procedure takes topographic point, host devices, and all the available web peripherals with a web direction Agent embedded indoors as shown in Figure 3. The director and agent manner is used in SNMP where the director monitors a group of agents ( other web devices ) . The relationship between director and agent is shown in figure 4 below, where a director can look into the agent behaviour through a set of parametric quantities, and can coerce it to act in certain manner by resetting those parametric quantities values. Agents can dismay the director of any uneven state of affairs. Different web directors can interchange information about each other webs as good.

In fact the SNMP works in cooperation with the SMI ( Structure of Management Information ) and the MIB ( Management Information Base ) protocols. The SMI is responsible for specifying the general regulations for calling objects, specifying objects types, and demo how to encode objects and values [ 5 ] . While the MIB is a conceptual database that can be distributed on different sites or assembled in individual location. It creates all the objects needed and names them harmonizing to the SMI regulations, so assigns them to their proper type. For each entity for illustration a device a set of defined objects will be created and kept in the database. Figure 5 shows the ISO MIB that consists of all the informations which reflect the FCAPS that are requested by the different web direction architectures.

TK6384

2010

TMN ( Telecommunication Management Network ) . The TMN was defined by the ITU-T ( International Telecommunication Union -Telecommunication Standardization Sector ) . It is a model to accomplish communicating between heterogenous telecommunication webs. TMN defines a standard interface for web elements that handle the communicating procedure, in this manner web elements can be managed by a individual web direction system regardless of their different makers. The model place four logical beds of web direction [ 6 ] :

  • Network Management Layer: Performs web resources distribution maps such as constellation and control.
  • Element Management Layer: Contains single web elements managing maps, this includes alarm direction, information handling, backup, logging, and hardware/ package care.
  • Business Management Layer: Performs maps related to concern facets, analyzes tendencies and quality issues, supply a footing for charge and other fiscal studies.
  • Service Management Layer: Performs maps for web services handling: definition, disposal and charging of services.

FCAPS is a model defined by the ISO and the name is a contraction of the five direction classs that were mentioned before in Table 1: Mistake, Configuration, Accounting, Performance, and Security. At the get downing the attack was to make a separate protocol for each one of those maps, but it turned out that those five protocols would be really similar so the ISO decided to do them all under one protocol, named so as CMIP ( Common Management Information Protocol ) [ 6 ] .

LITERATURE REVIEW

There are figure of web direction tool that claim to incorporate web direction maps. Those tools came to pull off web constituents from the same seller or the same service supplier. Therefore we are chiefly interested in bulding a comprehensive web direction tool through a individual interface, which means we aim to supply a cardinal control in a distributed direction manner. In this subdivision we will foreground several integrated web direction architecture.

Alcatel [ 7 ] offers a complete suite of web direction systems for all sub webs in the MSP ‘s ( Mobile Service Providers ) environment. They can be integrated with Alcatel ‘s nomadic OSS ( Operating Support System ) solutions to supply full end-to-end service direction. Alcatel Network Management Systems ( NMS ) are based on a consistent architecture that benefits from ALMAP ‘s common characteristics, common user interfaces and scalable architecture. To assist MSPs to run into these new challenges, Alcatel NMS and OSS have been designed as unfastened solutions that facilitate the smooth integrating of multi-technology and multi-vendor elements. Alcatel integrated mistake direction based on MicroMuse Netcool® to consolidate real-time dismay information across all web elements and application waiters, supplying real-time qui vives associating to jobs that affect service, thereby cut downing the clip to mend. Alcatel public presentation direction based on Metrica™/NPR includes the aggregation of public presentation informations and its consolidation across the full web and all application waiters to supply end-to-end QoS indexs. Alcatel job direction based on Action Request System® from Remedy® integrates with old applications, back uping web and service job declaration by managing the work flow of job declaration. It reduces web and service downtime and therefore improves QoS and client satisfaction. It can supply fix clip and reaction clip prosodies as a footing for measuring Service Level Agreements ( SLA ) . The Evolium™ OMC-CN provides efficient cross-network component constellation capablenesss and extended public presentation monitoring maps tuned to the nucleus web engineerings. The Evolium™ OMC-R combines the integrating of RNO ( Radio Network Optimizer ) with Alcatel ‘s world-wide expertness in 2G nomadic webs and its UMTS experience in Japan, to recognize the best wireless web direction system on the market.

In the CORDS undertaking [ 8 ] , several direction tools have been developed independently. The tools are NetMod ( Network Modeling Tool ) , NEST, NETMATE ( Network Management, Analysis, and Testing Environment ) , Hy+ and Shoshin Distributed Debugger. NetMod is a package bundle that predicts the public presentation of new web engineerings in a large-scale local web environment. NEST is a graphical environment for distributed web systems rapid prototyping and simulation developed at Columbia University. The NETMATE was developed at Columbia University to supply a incorporate and comprehensive package environment for web direction to supervise and orchestrate the operation s of diverse devices and protocol. Hy+ is a ocular database system being developed at the University of Toronto. The system is capable of pull stringsing informations by visually expressed questions on big complex systems such as a computing machine web. Shoshin Distributed Debugger is being developed at the University of Waterloo to back up debugging of distributed and parallel applications.

Netdisco ( Network Discovery and Management ) [ 9 ] is an Open Source web-based web direction tool hosted by Sourceforge. This undertaking was headed by Eric Miller, Bill Fenner, and Max Baker. Netdisco is a web direction application targeted at big corporate and university webs. It integrated devices and package into the one incorporate system. The incorporate devices are Airespace, Allied Telesyn, Aruba, Asante, Bay, Cisco, Dell, Enterasys Networks, Extreme Networks, Foundry Networks, HP, Juniper, Net-SNMP, NetScreen, Nortel, Proxim, Sun, Synoptics and Zyxel. These devices provide hardware like switch, router and hub. The integrated package are Perl, Mason, Net-SNMP, PostgreSQL, Apache 1, GraphViz and MIBs. Table 1 below summarizes all three web direction architecture and tool as been describe above.

Table 1

INMAs & A ; Ts

Network

Same Service Provider

Different Service Provider

Alcatel-Lucent

Mobile web

i. Alcatel The Evolium™ OMC-CN

two. Alcatel Evolium™ OMC-R

i. MicroMuse Netcool®

two. Metrica™/NPR

three. Action Request System® from Remedy®

Cords

Large-scale local web

Columbia University: Nest and NETMATE

University of Toronto: Hy+ , University of Waterloo: Shoshin Distributed Debugger

Netdisco

Heterogeneous

Devicess: Airespace, Allied Telesyn, Aruba, Asante, Bay, Cisco, Dell, Enterasys Networks, Extreme Networks, Foundry Networks, HP, Juniper, Net-SNMP, NetScreen, Nortel, Proxim, Sun, Synoptics and Zyxel.

Software: Perl, Mason, Net-SNMP, PostgreSQL, Apache 1, GraphViz and MIBs

The proposed NM archetcure

In this paper we propose a web direction tool architecture which supports heterogenous NM system in many different architectural platforms. The proposed system should run into the following aims:

  • Easy to utilize: to minimise the degree of expert needed excessively pull off the web.
  • Easy to entree: web based architecture is the best manner to accomplish that.
  • The web direction tool should hold a standardised set of FCAPS map objects. This is needed to extinguish the information incompatibility that can be resulted from different criterions in different webs.
  • Be able to construe between definitions in different managed devices.

A conceptual position of the proposed architecture is shown in figure 7 below. The local web direction system in each web gather the information needed about all the devices, terminuss, package, and users in that web utilizing its ain protocols. The gathered information has to be send to the Agents Interface in the Console portion. The Agent Interface communicates all the agents so shops those informations in the database which is MIB and is explained in Figure 5. The Management Functions combines all the FCAPS maps ( Fault, Configuration, Accounting, Performance, and Security ) all those maps can be accessed by the user through the User Interface which is a web based interface that visualize and demo all the attached webs direction information. In this architecture agents on different webs interact with a gateway to pass on with any other agent. Networks such as like LAN, GSM, ATM, and ISDN are local webs and each one has their web direction systems. Through gateway agent each local web has an agent and they speak to gateway which leads to centralise control with distributed direction.

There are four demands for proposed direction envionment:

Requirements

Application

Data description

Common Information Model ( CIM )

Conveyance Encoding

Gateway

Operationss to pull strings the informations

Hyper Text Transfer Protocol ( HTTP )

Common Information Model ( CIM ) :

This is an object oriented information theoretical account for stipulating direction information in a manner that is independent of applications, platforms, protocols and implementations.CIM defines a manner to interchange the informations from any beginning and web. The information represented utilizing CIM can be understood and analyzed by and any web direction tool or applications which understand CIM. The heterogenous webs can do correlativities between information coming from different locations in the web.

Extensile Markup Language:

The Desktop Management Task Force ( DMTF ) late advanced the CIM encoding to standard Extensible Markup Language ( XML ) to demo existent direction informations in a standard manner in order to interoperate with each other for applications it must be possible to stand for existent direction informations in a standard manner. Extensile Markup Language ( XML ) is a markup linguistic communication for stand foring information in a standard format in order to do heterogenous platforms and applications able to interoperate with each other.

CIM operation over HTTP:

This construct stands for function of CIM operations onto the Hyper Text Transfer Protocol.All direction maps can be accessed by the user through the User Interface which is a web based interface that visualize and demo all the attached webs direction information.

Gateway:

A gateway stands for pass oning between two webs that use different protocols, or which have the same protocols but do non otherwise communicate. Gateways integrate assorted informations beginnings and make the visual aspect that all informations resides in a individual, logical relational database. It is a combination of hardware and package that translates between two different protocols and Acts of the Apostless as the connexion point to the Internet.

The block diagram of a gateway application is shown in Figure8.It consists of 5 constituents: Message Accepting Rely Agents, Message Extractor, Message Translator, Message Rebuilder and Message Dispatching Relay Agents. Information after having to gateway from different webs would be processed as follows in Figure 7.In this proposed architecture, all the informations coming from agents of different types of webs such as GSM, ATM, LAN, and ISDN are translated in the gateway agent. The information in gateway agent are translated from existent to generic or frailty versa.

Decision

Diversity and complexness are the rubrics of the coming communicating engineerings, this state of affairs caused by the increased production of the communicating devices and systems without puting on one standardised constructs or common linguistic communication. Those systems and devices today organizing heterogenous webs.That raised the intensive demand to happen a one station to command and pull off those webs, since commanding them individually brings a batch of troubles and incompatibility. In this paper we proposed a new web direction tool architecture for pull offing heterogenous webs with a web based interface

Mention

[ 1 ] . Alex Gorod, Ryan GoveDr. Brian SauserDr. John Boardman, ” System of Systems Management: A Network Management Approach” , ISBN: 1-4244-1160-2.

[ 2 ] . Celia A. Joseph Kurudi H. Muralidhar, “Integrated Network Management in an Enterprise Environment” , IEEE

[ 3 ] . Mohd Nazri Ismail and, Abdullah Mohd Zin, “Comparing the Accuracy of End-to-End Network Performance Measurement Testbed and Simulation Model for Data Transfers in Heterogeneous Environment” , Second Asia International Conference on Modeling & A ; Simulation, IEEE, pp,

[ 4 ] . Do-Hyeon Kim, You-Ze Cho, “An Efficient Integrated Network Management for Heterogeneous LANs and WANs”

[ 5 ] . Book

[ 6 ] . hypertext transfer protocol: //en.wikipedia.org/wiki/Telecommunications_Management_Network, 19-Feb -2009.

[ 7 ] . P-H Gross and N. Mercouroff. Integrated Network and Service Management for Mobile Networks, hypertext transfer protocol: //www1.alcatel- lucent.com/doctypes/articlepaperlibrary/html/

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