Adding ethernet ports with a network switch

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expanding your network with a network switch: a comprehensive guide

this tutorial will walk you through adding more ethernet ports to your network using a network switch. we'll cover what a network switch is, why you need one, how to choose the right switch, the physical installation process, basic troubleshooting, and even some advanced configurations. while code examples aren't directly applicable to using a switch (as switches operate primarily at the data link layer and don't run user-programmable code like a router), we will explore how to query network information relevant to a switch using python and libraries like `netifaces` and `psutil`.

*1. what is a network switch?*

a network switch is a hardware device that connects devices on a computer network by forwarding data packets to the intended recipient device. it operates at the *data link layer (layer 2)* of the osi model and uses mac addresses to identify devices on the network. unlike a hub, which broadcasts data to all connected devices, a switch intelligently forwards data only to the specific port connected to the destination device. this dramatically improves network performance.

*key differences between switches, hubs, and routers:*

*hub:* a hub is a simple, less intelligent device that broadcasts incoming data to all its ports. this creates collisions and reduces overall network speed. hubs are generally obsolete.
*switch:* a switch intelligently forwards data only to the destination port. this reduces collisions and improves performance. switches learn mac addresses of connected devices.
*router:* a router operates at the *network layer (layer 3)* of the osi model. it forwards data packets between different networks, using ip addresses. routers typically have more advanced features like dhcp (dynamic host configuration protocol), nat (network address translation), and firewall capabilities. a router acts as a gateway between your local network and the inter ...

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ethernet ports
network switch
network expansion
LAN connectivity
switch installation
data transfer
network devices
wired network
network infrastructure
home networking
office networking
switch configuration
port management
network performance
device connectivity