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Abstract-Optical Internet has become a strong development and its commercial use is growing rapidly. Due to transparency and virtual sharing infrastructure, they provide ultra-fast data rates with the help of optical burst switching technology, which transmits data in the form of bursts. From the security perspective, one of the OBS nodes in the optical network is compromised, causes the vulnerability. This paper is dealt to identify the vulnerabilities and named as burst hijacking attack and provide the prevention mechanism for the same. The NSFnet 14 nodes and the ns2 simulator with modified nOBS patch is used to simulate and verify the security parameters.Keywords-optical internet security; burst hijacking attack; threats and vulnerabilities in TCP/OBS networks.

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