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Computer Networking: Difference between revisions
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Computer networking theory | |||
==Reference Models== | ==Reference Models== | ||
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<li style="transform: rotate(-180deg);">Application layer</li> | <li style="transform: rotate(-180deg);">Application layer</li> | ||
</ol> | </ol> | ||
==Link Layer== | |||
===Hardware=== | |||
* Hub - A hub connects multiple devices and will pass around data frames to every single connection. It has no logic and is equivalent to wiring all the cables together. | |||
* Repeater - A repeater is used to boost signals. It will read the pattern (e.g. voltage representing bits) and repeat it on another wire. | |||
* Bridge or Switch - A switch connects multiple devices and does routing at this layer using mac addresses. | |||
* Router - Routers work at the network layer to route packets across different networks (e.g. across VLANS or LAN to WAN). | |||
==Network Layer== | ==Network Layer== | ||