N Is For Networking

We asked for follow ups and you did not disappoint! On today’s show we respond to listener comments and corrections on multicast, routing protocols, security, and more. We also have a technical correction for the RFC 1918 Class B private address range. A big thank you to everyone who sent in responses. If you’d like... Read more »

Lenny Giuliano, Sr. Distinguished Systems Engineer at HPE Juniper Networks, joins Holly and Ethan for another round of multicast. Part two helps fill in details not covered in episode 50. They cover how multicast traffic also affects Ethernet frame addressing, and the key differences between IPv4 and IPv6 multicast. They also explain new hybrid multicast... Read more »

Today’s topic is Multiprotocol Label Switching or MPLS, a foundational technology that powers service provider networks and enterprise WANs all over the world. To help us break it down, we’ve invited James Bensley, a Network Tech Lead who’s spent fifteen years with MPLS. James explains what spurred the creation of MPLS and how it works... Read more »

Today’s learning adventure is an overview of multicast. Ethan and Holly have invited a guest to share his multicast expertise: Lenny Giuliano, Sr. Distinguished Systems Engineer at HPE Juniper Networks. Lenny guides them through multicast principles and shares examples of where and how it’s used in live networks. He also explains how the OSPF routing... Read more »

Today, Ethan and Holly provide an overview of firewalls. While cybersecurity is a separate discipline from network engineering, much of what happens in cybersecurity is interesting at the packet level, so there’s a good deal of overlap. It’s likely that as a network engineer, you’ll be managing, or at least dealing with, firewalls in your... Read more »