A Little Dive into iperf3

We've talked occasionally about iperf3 (and iperf2) on the channel but we sometimes forget to delve into exactly what iperf is trying to tell us and why we get the results that we do. In this video we will go over why we get less than our advertised bandwidth on a network link and look at an actual network capture.

For fun here is the new iperf playlist: https://www.youtube.com/playlist?list=PLrancVv1TdY_sEnj0wj-xxqtWJkCVzd64

iperf3 link (yes, France!): https://iperf.fr/

Here are some related videos:
A Little Dive into Latency: https://youtu.be/JWu6DCvgGzk

Here is the previous video on latency: https://youtu.be/mVHwZjLIAI0

Related:
NAT and NTP build: https://youtu.be/8SB1sVGqeho

For fun here is a new iperf playlist: https://www.youtube.com/playlist?list=PLrancVv1TdY_sEnj0wj-xxqtWJkCVzd64

iperf3 link (yes, France!): https://iperf.fr/

Books and other products for networkers

Packet Guide to Core Network Protocols: https://www.oreilly.com/library/view/packet-guide-to/9781449308094/

Packet Guide to Routing and Switching: https://www.oreilly.com/library/view/packet-guide-to/9781449311315/

Packet Guide to Voice over IP: https://www.oreilly.com/library/view/packet-guide-to/9781449339661/

Network Engineering Fundamentals: https://www.oreilly.com/videos/network-engineering-fundamentals/9781491932643/

Advanced Network Engineering: https://www.oreilly.com/videos/advanced-network-engineering/9781491952559/

Virtualization, Networking, and Storage: https://www.oreilly.com/videos/virtualization-networking-and/9781491970478/