Leraning journal unit 5

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University of Colorado, Denver *

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4406

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Computer Science

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Jan 9, 2024

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docx

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Uploaded by daveakston

What is the fundamental difference between a Layer 2 switch and a Layer 3 router? Layers 2 and 3 are models that describe and explain network communications. Their big difference is the routing function. Layer 2 is the data link layer that works with only MAC (media access control) addresses and does not bother about IP address or any higher layers. As for layer 3 it performs all the functions that layer 2 does plus it does static and dynamic routing. Layer 3 has an elevated in security and power as demanded. * Performance of layer 2 and 3 Layer 2 switch can only switch packets from one port to another. Routing impossible in layer 2, meaning that devices can only communicate within the same network. Whereas in layer 3 devices can communicate internal outside the networks. * MAC and IP address in layers 2 and 3 Layer 2 uses MAC addresses to move data packets from source to destination port. As for layer 3 uses IP addresses sending different subnets together using special routing protocols. * Speed of layers 2 and 3 Layer 2 is faster compared to layer 3 because layer 3 takes its time to search data packets before sending them to their destination. Reference list Moris. (2017, November 8). Layer 2 vs Layer 3 Switch: Which One Do You Need? Retrieved from https://community.fs.com/blog/layer-2-switch-vs-layer-3-switch-which-one-do-you-need.html Networks, A. (2021, February 16). Layer 2 vs Layer 3 Network Switches. Retrieved from https://www.auvik.com/franklyit/blog/layer-3-switches-layer-2/

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