Packet Pushers

Author Archives: Packet Pushers

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 »

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 »

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 »

HW044: Unpacking NETGEAR’s Enterprise Wireless and Wired Portfolio (Sponsored)

NETGEAR is known for consumer networking products, but it also offers a robust porfolio of wireless and wired networking products designed for the enterprise. On today’s Heavy Wireless, sponsored by NETGEAR, we take a close look at the hardware, software, and services that NETGEAR offers to enterprise customers. That includes Wi-Fi 7 APs, a full... Read more »

NAN083: Cox Gets Network Automation Right, and Proves It at DEF CON (Sponsored)

Today’s Network Automation Nerds episode discusses Cox Communications’ journey to getting network automation right. We also talk about how they used network automation to support operating the network at the DEF CON hacker convention. Our guests are David Ezell, Joshua Watkins and Eric Hansen from Cox Communications. We dive into initial steps and challenges in... Read more »

N4N009: High-Speed Ethernet Lanes Explained

On today’s episode, we’re explaining high-speed Ethernet lanes at the request of listener Matthew. We cover lanes, channels, and their physical representation in networking – think actual cables. We explain both 40Gb and 100Gb technologies and compare them to Link Aggregation Control Protocol (LACP). We also have a discussion on standards and practical implications for... Read more »

PP045: Reducing the Risk of Compromised Digital Certificates with CAA and Certificate Transparency

Transport Layer Security (TLS) relies on certificates to authenticate Web sites and enable encryption. On today’s Packet Protector we look at mechanisms that domain owners can take to ensure the validity of their digital certificates. More specifically, we cover Certification Authority Authorization (CAA) and Certificate Transparency (CT). Our guest is Ed Harmoush. Ed is a... Read more »

TNO012: From Hardware to Cloud: Evolving Roles for Network Operators

Cloud networking is still networking, but there are differences. In this special collaboration episode between the Total Network Operations and Cloud Gambit podcasts, Scott Robohn, Eyvonne Sharp, and William Collins dive into the contrasts between traditional and cloud networking, and how network engineers raised on hardware and the CLI can flourish in cloudy environments. In... Read more »

N4N008: What Is a Default Gateway?

Today’s topic is the default gateway, essential for routing traffic between networks. We explain its purpose, configuration, and the consequences of incorrect settings. Using home networks as an example, Ethan and Holly illustrate how default gateways enable devices to communicate with external networks. The discussion also covers routing tables, subnet masks, and the differences between... Read more »
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