Failure Detection and Recovery in Hierarchical Network Using FTN Approach

In current scenario several commercial and social organizations are using computer networks for their business and management purposes. In order to meet the business requirements networks are also grow. The growth of network also promotes the handling capability of large networks because it counter raises the possibilities of various faults in the network. A fault in network degrades its performance by affecting parameters like throughput, delay, latency, reliability etc. In hierarchical network models any possibility of fault may collapse entire network. If a fault occurrence disables a device in hierarchical network then it may distresses all the devices underneath. Thus it affects entire networks performance. In this paper we propose Fault Tolerable hierarchical Network (FTN) approach as a solution to the problems of hierarchical networks. The proposed approach firstly detects possibilities of fault in the network and accordingly provides specific recovery mechanism. We have evaluated the performance of FTN approach in terms of delay and throughput of network.Comment: 8 pages, 7 figure. International Journal of Computer Science Issues, 201

Improving Overhead Computation and pre-processing Time for Grid Scheduling System

Computational Grid is enormous environments with heterogeneous resources and stable infrastructures among other Internet-based computing systems. However, the managing of resources in such systems has its special problems. Scheduler systems need to get last information about participant nodes from information centers for the purpose of firmly job scheduling. In this paper, we focus on online updating resource information centers with processed and provided data based on the assumed hierarchical model. A hybrid knowledge extraction method has been used to classifying grid nodes based on prediction of jobs' features. An affirmative point of this research is that scheduler systems don't waste extra time for getting up-to-date information of grid nodes. The experimental result shows the advantages of our approach compared to other conservative methods, especially due to its ability to predict the behavior of nodes based on comprehensive data tables on each node.Comment: IEEE Publication format, International Journal of Computer Science and Information Security, IJCSIS, Vol. 8 No. 1, April 2010, USA. ISSN 1947 5500, http://sites.google.com/site/ijcsis