webinar series

Networking basics

This webinar series is all about how the Internet works. It is aimed at beginners in computer networking and people entering the Internet industry. Watch the videos to learn about Ethernet, VLANS, IP, routing and much more. Each video comes with a downloadable handout.

01 Introduction to networks

In the first 30-minute webinar, we take a look at how networks transport data, what is a protocol, what is a protocol stack, and how does the Internet fit in in all of this.

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02 Ethernet

In this 30-minute video, Wolfgang Tremmel talks about Ethernet, its history, development over time, and how modern Ethernet functions. You can also download the presentation slides which include further reading material.

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02a Ethernet & VLANs

In this video we talk more about Ethernet as well as VLANs – why they are useful, how they work, and show you how, in theory, to set them up.

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02b Ethernet, VLANs, and QinQ

Following up from Ethernet and VLANs webinar, Wolfgang Tremmel will talk about QinQ VLAN double tagging. Not very basic networking but very specific for DE-CIX.

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03 The Internet Protocol (IP)

What is a protocol, a protocol stack, and how does IP fit in? Additionally, in this video you will learn about the IPv4 and IPv6 headers, IP addresses, and the history of IP.

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03a IP addresses, prefixes, and routing

Deeper dive to IP addresses and end-to-end transport, covering routing and prefixes.

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03b Global IP routing

What is peering and why are Internet Exchanges important? And how does the global IP routing work? Watch this 15min video to find out.

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04a User Datagram Protocol (UDP)

Learn about the transport layer, protocols and get a deep dive into UDP. 

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04b Transmission Control Protocol (TCP)

Learn about TCP – what is does, how it works, and the different features it has. 

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04c Internet Control Message Protocol (ICMP)

Find out about ICMP and why it is needed.

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04d How does Traceroute really work 

Learn about Traceroute and if you can rely on it when debugging a routing problem. 

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05 Unicast, broadcast, multicast, and anycast

Learn about the different types of communication in networking. 

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06a Domain Name System (DNS)

Find out how DNS came about and how it makes the Internet work. 

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06b IPv4 Address Resolution and IPv6 Neighbor Discovery 

This webinar is all about IP protocols, Ethernet and how these work together.

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07a Simple Mail Transport Protocol (SMTP)

Learn about Simple Mail Transport Protocol (SMTP) – the first protocol on the application layer which contains all kinds of communication protocols for transferring data across IP networks. 

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