# Networking All-in-One for Dummies
Author:: Doug Lowe
## Highlights
> Data link protocols address things such as the size of each packet of data to be sent, a means of addressing each packet so that it's delivered to the intended recipient, and a way to ensure that two or more nodes don't try to transmit data on the network at the same time. The Data Link layer also provides basic error detection and correction to ensure that the data sent is the same as the data received. ([Location 1017](https://readwise.io/to_kindle?action=open&asin=B0047DWCLQ&location=1017))
> At the Data Link layer, each device on the network has an address known as the Media Access Control address, or MAC address. ([Location 1023](https://readwise.io/to_kindle?action=open&asin=B0047DWCLQ&location=1023))
> Ethernet accomplishes this feat by using a technique called CSMA/CD, which stands for carrier sense multiple access with collision detection. ([Location 1044](https://readwise.io/to_kindle?action=open&asin=B0047DWCLQ&location=1044))
---
Title: Networking All-in-One for Dummies
Author: Doug Lowe
Tags: readwise, books
date: 2024-01-30
---
# Networking All-in-One for Dummies
Author:: Doug Lowe
## AI-Generated Summary
None
## Highlights
> Data link protocols address things such as the size of each packet of data to be sent, a means of addressing each packet so that it's delivered to the intended recipient, and a way to ensure that two or more nodes don't try to transmit data on the network at the same time. The Data Link layer also provides basic error detection and correction to ensure that the data sent is the same as the data received. ([Location 1017](https://readwise.io/to_kindle?action=open&asin=B0047DWCLQ&location=1017))
> At the Data Link layer, each device on the network has an address known as the Media Access Control address, or MAC address. ([Location 1023](https://readwise.io/to_kindle?action=open&asin=B0047DWCLQ&location=1023))
> Ethernet accomplishes this feat by using a technique called CSMA/CD, which stands for carrier sense multiple access with collision detection. ([Location 1044](https://readwise.io/to_kindle?action=open&asin=B0047DWCLQ&location=1044))