Sub-connection Based Isolation Against Network Virus

Taking the superiority of the connection of the network, computer viruses bring more harm to users. However few researches focus on the network isolation against virus. Most existing isolation tools trying to isolate the faults and protecting the specific sub-network do not fit to prevent web-spreading network virus. By dividing the network connection into subconnections the paper presents sub-connection based isolation against network virus. The sub-isolation is defined as a set of binary relation from the infected area to the susceptible area of the virus. New formulas are also proposed to measure the blockage of the isolation on the network. Finally three groups of more than 50 simulation tests are carried out. The test results verify the valid of the sub-connection based isolation and prove it causes fewer blockages on the network flow than the existing isolation ways. Thus the paper opens a new path to prevent the net viruses.

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