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N4N013: Spanning Tree Part 1 – An Introduction and Broadcast Storms
Spanning tree is a topic so mysterious and complicated that common advice is just to disable it. In today’s episode, we start a mini-series on spanning tree, hoping to better explain what it is and what it does. We begin with basic spanning tree terminology and its role in preventing loops in an Ethernet network.... Read more »NAN085: Embrace Change to Thrive in the Tech Industry
Embracing change is sometimes easier said than done. Today we talk with Monika Machado, who has held significant roles at companies like Microsoft and Oracle. She shares her story of learning and personal growth. Monika highlights the value of mentor-mentee relationships, continuous learning, understanding the difference between leadership and management, and the value of owning... Read more »PP049: CSMM – A Practical Model for Improving Your Cloud Security
The Cloud Security Maturity Model (CSMM) is a practical blueprint for improving the security of your public cloud deployments. Developed in partnership with the Cloud Security Alliance, IANS, and Securosis, the model covers 12 categories, such as network security and application security, across 3 domains. It describes 5 levels of security maturity, and includes process... Read more »HS094: How Risky Is Your Organization’s AI Strategy?
AI Large Language Models (LLMs) can be used to generate output that the creators and users of those models didn’t intend; for example, harassment, instructions on how to make a bomb, or facilitating cybercrime. Researchers have created the HarmBench framework to measure how easily an AI can be weaponized. Recently these researchers trumpeted the finding... Read more »
TNO015: Revolutionizing Telecom with NetOps Automation and Collaboration
Today’s episode with guest Joan Garcia provides valuable insights into the complexities of modern network operations at a telco, the importance of collaboration across technical domains, and the strategic decisions that drive innovation in the telecom industry. Joan’s experiences and perspectives offer ideas for navigating the challenges of integrating different layers of network architecture while... Read more »N4N012: Russ White On Why We Need Network Models
Why do we need network models such as OSI? Network architect and author Russ White joins Holly and Ethan to talk about how network models can help engineers ask intelligent questions and understand networking problems. And OSI isn’t your only option–Russ digs into the RINA model and how it compares to OSI (which we covered... Read more »PP048: News Roundup – 5G Vulnerabilities Abound, CSRB Disbanded, Magic Packets Target Juniper Routers, and More
JJ and Drew catch you up on cybersecurity news including new research that uncovers a host of 5G/LTE vulnerabilities, the chain of breaches in a BeyondTrust attack that led to infiltration of the US Treasury Dept., and a lawsuit against LinkedIn alleging that data from paying customers was used to train AI models. Researchers unpack... Read more »HW045: A Comprehensive Guide to Wi-Fi Explorer Pro 3: Features, Insights, and More!
Wi-Fi Explorer Pro is a popular wireless scanner. On today’s show we dive into the tool with its creator, Adrian Granados. We also talk about the launch of the new book Wi-Fi Explorer Pro 3 – The Definitive User Guide, written by Granados and co-author Nigel Bowden. We delve into the history and features of... Read more »TNO014: Beneath the Cable Color – A Look at The Siemon Company’s High Speed Cable Assemblies (Sponsored)
Today we get an education on what a high speed cable assembly really is from guest Ryan Harris from today’s sponsor, The Siemon Company. Ryan shares the evolution of high-speed pluggable cable assemblies from 64kbps ISDN B channels to 800 gigabit connections, and describes how they work. We discuss the Siemon Company’s history and its... Read more »N4N011: What’s the Difference Between LAG, MLAG, MC-LAG, and Stacking?
In today’s episode, we address listener Kieren’s question about the differences between LAG, MLAG, MC-LAG, and stacking. We tackle the nuances of Link Aggregation (LAG) and the Link Aggregation Control Protocol (LACP), and explain their roles in redundancy and bandwidth efficiency. We also discuss the complexities and differences among vendors and overall benefits of Multi-Chassis... Read more »NAN084: From GitNops Zero to Hero
Are you ready to go from zero to hero in GitNops? On today’s podcast, we talk with Tom McGonagle, who shares and explains git, CI/CD and DevOps and how that all fits into network engineering. The conversation also covers the evolution of containerization and Kubernetes, highlighting their roles in modern network automation. Tom also encourages... Read more »PP047: Why Packet Analysis (and Wireshark) Should Be In Your Security Toolkit
Don’t underestimate the value of packet analysis in your security strategy. And if you’re analyzing packets, the open-source Wireshark software is a go-to tool. On today’s episode, we talk with Chris Greer, a Wireshark trainer and consultant specializing in packet analysis. Chris explains the critical role of packet analysis in cybersecurity, particularly in threat hunting... Read more »HS093: Strategic Trust-Building Among Ops, Engineering, Architecture – and Leadership
Billy Joel had it right: It’s a matter of trust. Too often Operations, Engineering, and Architecture teams don’t trust one another–and nobody trusts leadership (and vice versa!). Special guest (and PacketPushers host) Scott Robohn joins us to talk about how to build trust, and the special role of an Operations Architect. Episode Guest: Scott Robohn, ... Read more »