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File:Router switch in OSI model.png - Wikimedia Commons
File:OSI model router.png - Wikimedia Commons
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File:Router switch in OSI model.png - Wikimedia Commons
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![PDF] The OSI reference model | Semantic Scholar](https://d3i71xaburhd42.cloudfront.net/e696dd2d9d46c1330d68d8c3743a21269dabe004/8-Figure1-3-1.png "PDF] The OSI reference model | Semantic Scholar")