Podcast Episodes
Back to SearchMPLS Fundamentals
Episode 51
Today’s topic is Multiprotocol Label Switching or MPLS, a foundational technology that powers service provider networks and enterprise WANs all over …
5 hours ago
Multicast Fundamentals
Episode 50
Today’s learning adventure is an overview of multicast. Ethan and Holly have invited a guest to share his multicast expertise: Lenny Giuliano, Sr. Di…
2 weeks ago
Understanding Firewalls
Episode 49
Today, Ethan and Holly provide an overview of firewalls. While cybersecurity is a separate discipline from network engineering, much of what happens …
1 month ago
QoS Fundamentals
Episode 48
Quality of Service (QoS) is a huge topic with a punishingly large group of acronyms. Join Ethan and Holly as they help you build a mental framework o…
1 month, 2 weeks ago
Virtual Router Redundancy Protocol (VRRP)
Episode 47
Go beyond the basics to understand the mechanics that keep your default gateway from becoming a single point of failure. Ethan and Holly demystify Vi…
1 month, 3 weeks ago
In-Band vs. Out-of-Band Management
Episode 46
Ethan and Holly discuss the major differences between In-band and Out-of-band (OOB) management and the pros and cons of both. They explore how to imp…
2 months, 1 week ago
Audience Follow Up & 2026 Preview
Episode 45
If you’re curious as to what Ethan and Holly have in store for 2026, they give you a sneak peak on today’s episode. Hint: Some of these topics might …
3 months ago
Redundancy Vs. High Availability Part 2 - HA Networking Isn't Free
Episode 44
In Part 1 of Redundancy vs. High Availability, we said that sometimes high availability and redundancy are considered to be the same thing, but we di…
3 months, 2 weeks ago
Redundancy vs. High Availability Part 1
Episode 43
In today’s chat, Holly and Ethan consider a question from listener Douglas who asks, “How do you approach designing a network for high availability a…
3 months, 3 weeks ago
Meet MACsec
Episode 42
MACsec is a protocol for encrypting Ethernet frames on a local (though not always local) network. Ethan Banks and Holly Metlitzky have an ELI5 (expla…
4 months, 1 week ago