Fault Diagnosis And Troubleshooting Information Technology Essay

tarnish diagnosing And hold egressshooting Information Technology Essay mesh topology dispensement is nonhing save the activity which is associated with the meshing, which is implemented along with the technology to yield the activities. Different types of merged communications and the videos atomic form 18 embraced by electronic profit. A intercommunicate is an interlinking structure which requires very much attention. It should be aforethought(ip) cautiously. The lucre impostures moldiness be configured without affecting the remaining single-valued operate of the interlocking. in that respect may be the getures in the nedeucerk, so they need to be detected and repaired. Reli strength and approachability argon linked with the net profit. The role of the cyberspace manager non altogether observes the exerciseance and the security department of the profit, they besides prefigure the problems in the mesh topology and exceed the technologies to make that everything volition work well. There exist two manikins i.e. FCAPS and ITIL that gage be mappingful for interpret and demonstrating the network heed. In this paper we ass see that how they ar sustainful to speak up about the steering tools. direct a days many of the UK everyday sector organizations are using ITIL. Some companies custom FCAPS which is layered with TMN, exclusively ITIL is more beneficiary when compared to FCAPS. The main objective of this paper is to provide comminuted info about FCAPS and ITIL and to provide their advantages. They are helpful in managing the networks of specialty and tumescent organizations. And besides compare FCAPS and ITIL, which would be helpful for NMRU for migrating to ITIL.INTRODUCTION1 FCAPSInternational telecommunications union has developed the Fcaps. They have give ind it as a model and non as a product. Along with the TMN layering, ITU-T divided the usableities provided by the perplexity into five areas. T he give trackality of the FCAPS is performed at various levels of TMN.1.1 Fault managementFault management is group of operations that performs finding the erroneous beliefs and correcting the defecting the errors. To be a thoroughly taint management it needs to acquire the problem, leave the reading to the concern person and observe the problems through trouble ticketing. The trail of this is to find the errors and quest the errors that have go in in the various places of network. In the short possible metre the errors must(prenominal) be determine and rectified. It contains the functions given below,Network observeThe main function of network monitoring is that to check whether the carrying into action of the network is good, to have a look on the actual state of the network and also to modify the state. The fundamental step of this is to know the errors in the network and respond accordingly which occur in the network.The main aim of network monitoring is to refer the functionality of the appals. Alarms are nil simply the messages which are direct from the network that something has occurred unexpectedly. The unexpected things can be of any kind i.e. it can be from a router that the line card is not working, a abrupt change in the quality of the signal in a tuner network and some un definitive user have entered into the network. An dispirit for network is zilch still a fire terror which occurs unexpectedly.Some cartridge clips the timidity management synonymously acts with the fault management. Alarm management has classified into two different functions.The basic function of the alarm management is that collecting the alarms, moderateing the conduct and on going list of the alarms and modifies the alarms. The main task is to collect the alarms from network and also create in such a carriage that nothing is absent which is important. This considers the alarms that are received and retention it to the memory so that a homophi le or an applicant can physical att overthrow it further. It also allows the persisting of the alarms, written to a disk or store in a selective informationbase so that the alarms which have occurred can be built as a record.In most nerves, collection of alarms includes addition of alarms, the mechanisms to check that the zero alarms have lost and we can also request for the replay of alarms. In global we leave lose the alarms in different ways. For example, the transportation which is from the underground may not be tested so we may lose the information of the alarms when it is going to the masking of the management. There may be the other think for the information to be lost i.e. the network is blocked so that alarms may fail to reach the destination. In the 3rd case, it go forth reach the destination but it was not collected in order be get to the functioning of the application or the informationbase was not in the right way.After the collection of the alarms, it is needed to maintain the list of the alarms. The list also communicates with the operator about the current state of the entities and for instance any device is having any problems. It is essential to realise the way the alarms are existence submitted to the users. The result of each alarm is entered into the list that contains the information of the alarm. The list can be examined, classified and it can be stray accordingly, such as the alarm type, the type of the network element special, the clip of the occurrence of the alarm etc. The information of the alarms can be motifte in different ways, but the topology maps are the most normal integrity.In the advanced alarm management, the additional functions are required to manage the alarms. For surgical procedureing of the alarms the network managers are provided with the great flexibility. For example, with the functioning of the alarm-forwarding the alarms might be sent to the operator to permit for the dispatch, such as t he topical anesthetic police volition be c ei in that respectd automatic entirelyy for the home intrusion detection.Another function is that the acknowledgment of the alarm can be d star by the network operator it means they confirm that the alarm has occurred and they are under litigateing. And the third is clearing the alarms to describe the condition of the alarm an alarm message has been sent. And by and by some time the second message is sent indicating that the condition of the alarm doesnt exist for the longer period.Two techniques are dealt with the overloading of the information. One is filtering, is it used to rent the information of the event that is unimportant, the receiver exit be allowed to concentrate on the applic able event information. The other one is the correlation, it is used to pre-process and collect the information from the events and the alarms. We allow for discuss about these two techniques in detail.In general filtering is done not only on alar ms but also on events. It is essential to hide as many as events that are not important. Filtering can be enabled in two ways one is allowing the operators to signal only the limited events and also the alarms that are applicable to them, as chosen according to the criteria. By doing this the operators allow receive the events that matches on that point criteria. And the other one which is used to filter the alarms is deduplication of alarms. The condition of the alarm might cause in such a way that it may send the comparable alarm repeatedly. Because the alarm which comes repeatedly doesnt contain any new information so the new instance of the alarm which is received might be removed. The process of removing the extra alarms is lined as deduplication.Alarm correlation refers to alarms that must be filtered and the functions that must be pre-processed. All the received alarm messages are stopped, studied and compared with all the alarms which are probably think with each othe r. For example, the alarm messages might be linked up because they may have the homogeneous problem. The general idea behind the event and alarm correlation is that rather than forwarding and insurance coverage different messages, it is better to send a few that combine and tote up the same information from different raw events. By doing in this way, the alarm messages that are reported can be automatically decreased.Fault Diagnosis and troubleshootingNetwork diagnosis doesnt variant a lot from medical diagnosis. The mutant is nothing but the patient. When the network contains a fault then the ability to solve the problem is, immediately finding out the reason for the problem. The process of solving the problem is meant as root cause analysis. Alarm forget only alert us about the symptom but not the reason for that problem.Troubleshooting will life diagnosis. Troubleshooting can simply retrieve the data about the device. Essential support is provided for diagnosis for testing a device or a network. Test can be used not only after occurring a problem but it can be used proactively i.e. we can know the problem in before it knows to the user. Avoiding the faults solely is best for fault management.Proactive Fault ManagementIn fault management most of the functionalities work in such way that they change by reversal active after occurring the errors. It is nothing but taking precautions in the network so that any hardships cannot occur. It also includes the analysis of the alarms that recognizes the alarms that have caused due to the lowly error.Trouble TicketingThere might be ten thousand users who are using a very large network. In this case, there is obtain to occur hundreds of problems in one day. In those only few or none of the problem can be solved. There might be many individual users who are experiencing problems which might be serious to them. Trouble ticket doesnt result for every alarm, issuing that many is not possible.1.2 constellation Ma nagementIn this the first step is to configure the network. In this the computer computer hardware and also the programming changes, considering the new programs and the equipments and adding them to the previous one, existing governances should be modified and removal of the unused systems and the programs. A list should be kept so that the equipment and the programs are kept and they are regularly updated.Configuring Managed ResourcesIn the beginning of the human body management, the activities and the operations which are being managed are configured first. It means that it is convolute in sending the commands to the network equipment for changing the settings of the conformation. Sometimes it involves in insulate only a single device, such as only one interface of the port will be configured.SynchronizationIt can be viewed in two ways one is considering the network as the surpass and the other one is considering the management system as the master.In atonement the networ k is considered to be the master, the information which is in the management system will reflect in the network. Synchronization of the information is performed from network to the management system.In reprovisioning the Management system is considered to be the master of the management information. It flows from management system to the network, resulting the changes in the configuration of the network. Until the management system will receive a report from the network device that the changes has been do it will maintain a flag indicating that it is out of synchronization.In discrepancy reporting the user is being detected and flagged by the discrepancies. It doesnt maintain the direction of the synchronization which is to be interpreted place. This is to be performed by the user on case by case basis. If he decides that the information should be reflected by the management system it will ask the reconciliation.Backup and RestoreThe virus can destroy the data that is present in th e hard disk. If we have a championship of data then in such cases we can recover the data. In the same it also applies for the network i.e. the backup and restores functionalities. The data of our users will not be in word or excel sheet but it will be the configuration of the network. The data is very important and it needs to be protected, just as we protect the database in a company. If unfortunately the configurations in the network are wiped off then many people will be affected. Then we dont have time to reconfigure the network. The easiest way to bring the things backup is restoring the network till the end of the configurations.Image ManagementMany network vendors issue the new versions of the parcel. In such cases you must be able to upgrade the network. The problem is that we are dealing with thousands of pcs which are connected across the same network. We must be have an idea of which devices are being installed with the different parcels, so that we can send the imag es which are to be updated and installed without unreassuring the religious swear outs of the network. This is nothing but the image management.1.3 Accounting ManagementIt is nothing but the functions that will provide the organizations to acquire the revenue and for getting the recognize for the returns they have provided. It needs to be extremely strong, large availableness and the reliable standards are applied.1.4 Performance ManagementThe performance metricsThroughput, the number of communication units performed per unit time. The communication units depend on the type of the layer, network and the work which are provided to the network. Examples,In the network layer, the total number of packets that are sent per second.In the application layer the voice calls or calls which are attempted per hour.Delay, it is measurable per unit time. Different kinds of delays can be measured depending on the layer or the network religious services.In the network layer, the time taken for an ip packet to reach its destination.In the application layer, the time taken to receive a dial tone after we curve the receiver.Quality, it can be measured in different ways depending on the services of the network.In the network layer, the percentage of the number of packets lost.In the application layer, the percentage of the number of calls terminated or the calls that were dropped.1.5 Security ManagementThe security aspects that are linked with securing the network from the treats, hackers attack, worms and viruses and the intrusion of the malicious attempts. It is distinguished in two ways.Security of Management means that the management is secure. The management applications must be admissioned securely. It is generally authorized based on the application management but not on the user basics. Without securing the management application there is no use of securing the interfaces and the network of the management.Management of security means that the network is secured. It involves only in managing network security. Now days we can come across many online treats. The security treats doesnt target on the network it will just target on the devices which are connected to the network i.e. end users.The use of FCAPS in managing the networkIt will manage all the kinds of networks i.e. private, public, mobile, cut and broadband and including all area networks (WAN, MAN, LAN).Cost of executing is reduced.Transmitting the digital and analog systems.Signalling the systems and the terminals including the transfer points of the signals.Performance problems are located easily.User is make satisfied.Schedules are implemented shortly.The feedback on the objective is very effective.Simplified modus operandi of network operation center.Telecommunication services are provided with the software program.2 ITILNow days many organizations are more depending on IT because of that ITIL has been developed by the CCTA in UK. It has provided the same manakin for diffe rent kind of activities which are performed by the IT department. ITIL is managed in different sets, they are be as the related functions service support, service delivery, and the other operational guidance are managerial, software support, estimator operations, security management and environmental. ITIL has been intentional to ply a good framework to present a high quality. Actually it is owned by CCTA, but it is observed and evolved by the Office of Government Commerce.2.1 armed service SupportThe service support focuses on the users. The customers and the users are the starting point to the model. They are concern inAsking for the changesFor communication and also the updatesHaving any difficulties and queriesThe delivery of the processIn most of the organizations it a Network Operations Center (NOC). It is in the main focused on one discipline i.e. whether the users are able to access to the applications what they are required. It focuses on finding the troubles, helpin g the users and giving the new applications which are completed on the internet. It includes the nextIncident ManagementThe main aim of this is to restore the service operation as early as possible, minimizes the personal effects on the problem operations, and verifying that all the levels of quality of the service and the availability are maintained.It can be defined as an event which is not the part of the service operation which may or may not reduce the quality of the service. The reality of this is the normal operations must be restored as soon as possible without effect on the descent or on the end user.Configuration ManagementIt helps in representing the ratiocinative and the physical functioning of the ICT services which are provided or delivered to the end user. It is nothing but the asset register, because it contains the information about the maintenance and problems which occur during the configuration of the items.Problem managementThe main aim of this is find out t he reasons for the cause of the incidents and to minimise the cause for the incidents and the problems which are caused because of the errors. A problem is nothing but the un cognise cause for one or more incidents and the known error is nothing but the problem which is diagnosed supremacyfully. The problem and known errors are defined by the CCTA as given below,Problem is a condition which is oftentimes determined as the come out of the quaternate incidents that contains the general symptoms. It can also be determined from an individual incident that indicates the single error, the reason is unknown.Known error is an improvement which is identified by the self made diagnosis of the main cause of the problem and the work which is developed around. qualify ManagementThe aim of this is to check the way the changes are handled using with the help of methods and procedures. Change is an event that the status of one or more configuring items which are approved by the management.The ai m of this includesBack- out activities are reduced.Change in the utilization of resources.Disruption of the services.The terminology for the change managementChange the addition, rescript or deletion of CLs.Change Request the form which is used to store the details which are to be changed and it is sent into the Change Management by using Change Requestor.Forward Schedule of Changes (FSC) it contains a list of all the changes which are going to come.Service DeskThe main aim of this includes initiating the incidents and the request, and an interface is initiated for the ITSM processes.Features includeIndividual point of contact.Individual point of entry.Individual point of exit. information integrity.The Service Desk functions includeIncident Control service request for the bearing cycle management.Communication the progress and the advising of the workarounds must be keep on informing to the customers.The Service Desk contains different namesCall Center it involves managaging of Brobdingnagian amount of telephone based transactions.Help Desk at primary support level it will conclude the incidents as soon as possible.Service Desk it not only helps in handling the incidents and solving the problems but also it will provide an interface for various activities such as changing the requests, maintaining the contracts etc.It contains three different types of structuresCentral Service Desk it will handle the organizations which contains in multiple locations.Local Service Desk it will meet the local business needs.Virtual Service Desk it will handle the organizations which contains the locations in multiple countries.Release managementThe software migration team uses it for the direct of platform-independent and the distribution of the software and hardware. The availability of the licence and the certified version of the software and the hardware check into the correct control of the software and the hardware. The responsibility of this is to control the quali ty of the hardware and software during the implementation and development.The goals of this includePlanning the role of the software. Creation and implementation of the process for distributing and to install the changes that occur in the IT. The expectations of the customers are effectively communicated and managed during the prep of the new versions. The changes in the IT systems must be controlled while the distribution and the installation take place.It focus on the protection of the existing environment. It consists of the recent or modified software or the hardware which is required to use the authorized changes.It includesLeading software which are released and the leading hardware which are updated, this contains the large amount of recent functionalities. Limited software which are released and the limited hardware which are updated, which contains the lesser enhancements and fixes, in which some of them have already issued as the emergency fixes. Emergency software and h ardware fixes, which contains the corrections of some known problems.Based on the released unit it is separated intoDelta Release the changes which have occurred in the software are only released.Full Release the complete software program is distributed.Packaged Release it releases the combination of various changes.2.2 Service auction pitchIt in the main concentrates on the services which the ICT must be delivered to supply the fitting support to the business users. It consists of the following processes.Service Level ManagementIt provides for supervising, designation and examining the stages of IT services which are specified in the Service Level Agreements. It involves in assessing the change of the quality of services. To control the activities of the service level management it will join with the operational processes. It is the direct interface to the customer. It is responsible for the followingIt will check whether the It services are delivered are not.It will maintain a nd acquire the Service Catalog.It will check that the IT Service Continuity plans subsist to support the business and its requirements.Capacity ManagementIt supports the best and actual cost supply of IT services by providing the organizations match with their business demands. It includesSize of the application.Workload Management. lease Management.Modeling.Planning the Capacity.Resource Management.Performance Management.IT Service Continuity ManagementIt Processes go after an organisations capability to supply the essential aim of service followed by an geological fault of service. It is not only reactive measures but also proactive measures.It involves the following stepsBy conducting the Business Impact Analysis the activities can be prioritised.The options are evaluated for the purpose of recovery.Contingency plan has been produced.The plan has been tested, reviewed and revised on regular basis.Availability ManagementThe ICT infrastructure capabilities and services are optim ized, service outages are minimized by having a support and give go on level of services to business requirements. The ability of IT component has been addressed to perform at a level all over the time.Reliability the performance of the IT component at a concerned level at an identified condition.Maintainability the IT component has an ability to remain or regenerate to a functional state.Serviceability the external supplier has an ability to conserve the availability of the function below the third party.Resilience the freedom has been measured from the operational failure and the way the services are kept reliable. Redundancy is one of the favorite methods for resilience.Security a service may contain a related data. Security is nothing but the availability of the data.Financial ManagementIt is the process to deal the cost linked to provide the organisation with the services or resources to see the business requirements. It may refer toManagerial Finance The fiscal technique has been concerned itself with managerial significance within the branch finance. bodied Finance the financial decisions are dealt with the area of the finance.2.3 Security ManagementSince some(prenominal) years it has become a prevalent network management. The external treats are justified with the firewalls and the access prevention. The rights and permissions of the configuration management have been included in the security management, so that the end users are not granted with the unaccredited access.2.4 Infrastructure ManagementIn large organizations, the systems have been designed and the troubleshoot by the teams are different from the team that installs the equipment. Because of this Configuration management is necessary for the success of IT organizations. For installing and configuring of network devices in an organization the infrastructure management is responsible.2.5 drill ManagementIt is designed to ensure that an application has the correct configuration design to i mplement in the environment. This can cover different aspects of network management. It is designed to ensure that it is completely enabled to supply the service and delivery to end users.2.6 software package Asset ManagementIt is considered for managing an organization. The software products and licenses are very expensive. It is designed similar to the configuration management, because it provides the information on each device about the software installation. In large organizations maintaining the software and accounting for the licence is the complex task.Uses of ITIL in an organizationThe utilization of the resources is improved.Rework is reduced.The submission of project to the client and the time management is improved.The cost of the quality of the service is justified.The central process is integrated. inordinateness work is decreased.The services are provided in such a way that they meet the customers demand.Know more from the earlier experience.Be more aggressive.Compari sion of ITIL and FCAPSFCAPS mainly focus on the technology management. ITIL focus on the way to act an IT organization efficiently, i.e. on the process and the workflow.One of the limitation of FCAPS, it cannot target operational process which is required to operate a Service Desk. In ITIL framework we have the service desk in service support which provides the operational services to customers or end users.FCAPS on informs about the problem but doesnt gives us the solution to the problem. But ITIL standards provides services to resolve the problem using service delivery and service management.The main task of the FCAPS is that it will help out in managing the objectives of the network. The ITIL is planned to supply the improved framework.The difference between FCAPS and ITIL is that, FCAPS contains only five layers but ITIL contains eleven layers.The incident management and the availability management in the ITIL are similar to the fault management in the FCAPS. The purpose of fau lt management in FCAPS is finding out the faults in the network and correcting them, but in ITIL if any problem occurs in the management there is no need to rework entire process.The purpose of the incident management is restoring the normal operations and the availability management is associated with the availability of the service to the business at an executable cost.CONCLUSIONFinally the above discussion concludes the use of FCAPS and ITIL in network management. The organizations which implements ITIL will get the good results in the name of the way the services are designed and delivered. The use of any technology is not specified by ITIL, but the implementation on the use of the tools is effective. Main focus of FCAPS begins with technological view. FCAPS has been proved as low peril and logical. For any organization to enhance its performance or to get proper outcome both FCAPS and ITIL has to be associated together.