Heavy Networking - podcast cover

Heavy Networking

Packet Pusherspacketpushers.net
Heavy Networking is an unabashedly nerdy dive into all things networking. Described by one listener as "verbal white papers," the weekly episodes feature network engineers, industry experts, and vendors sharing useful information to keep your professional knowledge sharp and your career growing. Hosts Ethan Banks & Drew Conry-Murray cut through the marketing spin to explore what works—and what doesn't—in networking today, while keeping an eye on what's ahead for the industry. On air since 2010, Heavy Networking is the flagship show of the Packet Pushers podcast network.
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Episodes

HN787: Are We In a Post-SNMP Era?

SNMP is still widely used in today’s networks. But modern telemetry and network observability are bringing changes to network monitoring. Today’s Heavy Networking is a roundtable discussion about alternatives to SNMP and real-world use cases for those alternatives. This episode was inspired by a request from listener Nikolay. He says… While telemetry (gRPC, etc.) is ... Read more »

Jun 27, 202558 minEp. 787

HN786: From Intent-Based to Autonomous Ops With Cisco Crosswork and Provider Connectivity Assurance (Sponsored)

Service provider networks face a couple of difficult challenges: how to map service level agreements to actual network health and performance, and how to deliver service assurance to customers regardless of what happens on the network. On today’s sponsored Heavy Networking we talk with Cisco Systems about its approach to service assurance, how Cisco is ... Read more »...

Jun 20, 202550 minEp. 786

HN785: How To Take Your First Steps Into Network Automation

There’s an old saying that a journey of a thousand miles begins with the first step. On today’s show, we talk about taking your first step into network automation with guest Joseph Nicholson. He’s been automating at NTT Data for many years now and has some perspective to share. He’s a network engineer by trade, ... Read more »

Jun 13, 202556 minEp. 785

HN784: Accelerate Your Network Automation With Gluware Labs and New Ansible Collection (Sponsored)

Network automation is today’s topic with sponsor Gluware. Gluware provides a network automation platform that targets both network engineers and automation builders. On today’s Heavy Networking, we discuss how Gluware supports these two constituencies. We also talk about a recent product announcement, Gluware Labs. Gluware Labs includes a free Community Edition of Gluware software you ... Read more »...

Jun 06, 202559 minEp. 784

HN783: BGP Routing Policy for Enterprise Networkers: Unpacking IRR and RPSL

If you participate in the public Internet by announcing your own netblocks, you should be familiar with Internet Routing Registries (IRRs) and the Routing Policy Specification Language (RPSL). These are tools that help you be a good network citizen. In a world of BGP hijacks and other problems, these tools matter more than ever. We ... Read more »

May 30, 202555 minEp. 783

HN782: Netris Meets Your Network Automation Challenges in AI Data Centers (Sponsored)

Netris is tackling the issue of automating multi-tenancy in an AI data center. Netris has your answer to this challenge, and it’s a solution certified to work with NVIDIA. We’re going to get into the nuts and bolts of Netris network automation with Alex Saroyan, CEO and co-founder of Netris. Along the way, we will ... Read more »

May 23, 202559 minEp. 782

HN781: CCIE Service Provider Free Workbook & Track Update

While studying for the CCIE Service Provider certification, Andrew Ohanian assembled a workbook to help him prepare. It’s packed with lab exercises, and Andrew has turned it into a free Web resource that anyone can access. On today’s Heavy Networking, we talk with Andrew about what’s in the guide, the state of the CCIE SP, ... Read more »

May 16, 202559 minEp. 781

HN780: The Whys and Hows of Automated Network Testing

On today’s Heavy Networking we talk with Dan Wade about testing the network, inspired by Dan’s talk at AutoCon 2: “Step 0: Test the Network.” We discuss why testing is a good idea, and then explore four types of network testing, including unit tests and integration tests. We dig into Yang, RESTCONF, NETCONF and gNMI ... Read more »

May 09, 20251 hr 4 minEp. 780

HN779: Do We Really Need the Modern Networking Stack?

On today’s Heavy Networking, a roundtable panel considers whether a modern network needs to be built around underlays and overlays. This isn’t just Ethan yelling at clouds. This is a legitimate question pondering the real-world value of an overlay/underlay approach. Is overlay everywhere overkill, or is that the architecture we need to deliver a safe, ... Read more »

May 02, 202555 minEp. 779

HN778: Understanding Model Context Protocol (MCP) with Selector (Sponsored)

Model Context Protocol (MCP) is a very new protocol that provides a standard way to link AI models to a variety of data sources and tools. As the industry heads toward agentic AI–in which an AI agent interacts with disparate applications, data sources, and other agents to achieve a task–MCP provides the protocol glue. On ... Read more »

Apr 25, 202551 minEp. 778

HN777: Overlay All the Things?

Today’s Heavy Networking is all about overlay technologies, their history, development, and current state, both from engineer and vendor perspectives. We discuss why the industry turns to overlays to solve problems, and look at overlay and segmentation approaches including VXLAN, SRv6, and EVPN. We also drill into the idea that EVPN could become the standard ... Read more »

Apr 18, 202552 minEp. 777

HN776: Security Platforms: Balancing Efficacy, Ops, and Emerging Threats (Sponsored)

Network security has evolved from stateful perimeter firewalls with maybe some IDS/IPS to a complex stack delivered as numerous unique tools, which often don’t talk to one another and may need to be operated by specialists. In this environment it’s hard to unify a security policy, troubleshoot problems, manage and operate tools, and respond effectively ... Read more »...

Apr 11, 202550 minEp. 776

HN775: How To Train Your Very Own AI-Enabled Slackbot

On today’s Heavy Networking, we’ll discuss building a Slackbot wired to an AI and trained on your own organization’s knowledge. The potential use cases for network operations are fascinating, and today’s guest, Kyler Middleton is here to explain the finer details on how to do it and point us to free resources created so that ... Read more »

Apr 04, 20251 hr 4 minEp. 775

HN774: Who Put These OT Risks In My IT Ops? Fortinet Has Answers (Sponsored)

IT and infosec professionals are used to operating and protecting mission-critical infrastructure; servers, databases, load balancers, and so on. But what about valves that control the flow of gas or oil in a refinery? Temperature and vibration sensors that monitor industrial manufacturing processes? If you’re thinking “That’s not my problem” think again. There’s a whole ... Read more »...

Mar 28, 202547 minEp. 774

HN773: Optimizing Ethernet for AI – An Update On the Ultra Ethernet Consortium

The Ultra Ethernet Consortium (UEC) is an industry body that aims to optimize Ethernet for AI and HPC use cases. On today’s Heavy Networking we get an overview of the UEC and an update on its efforts. We’re joined by J Metz and Rip Sohan, both heavily involved with the UEC. We discuss the consortium’s ... Read more »

Mar 21, 20251 hr 23 minEp. 773

HN772: Measuring Users’ Digital Experience with Catchpoint Internet Performance Monitoring (Sponsored)

Digital Experience Monitoring (DEM) is all about understanding a user’s application experience, and pinpointing problems if the experience is bad. Under the DEM umbrella, you’ll find Internet Performance Monitoring, or IPM. That’s our topic in today’s episode with sponsor Catchpoint. With more and more applications hosted in the cloud and more employees working remotely, organizations ... Read more »...

Mar 14, 202548 minEp. 772

HN771: Is The CCIE Still Worth It In 2025?

The CCIE remains the gold standard for networking certifications. But these days there are lots of other avenues for developing your skills and advancing your networking career, including network automation, cloud networking, and yes, even AI. So is the CCIE still worth it? We chew on this topic with Eman Conde. Eman has been known ... Read more »

Mar 07, 202556 minEp. 771

HN770: Deploying A Global Network in Minutes With Megaport (Sponsored)

In our conversation today with CTO Cameron Daniel of Megaport, we discuss their global WAN architecture, PoPs, use cases, the Megaport Cloud Router, and more. Megaport is our sponsor today. It’s accurate to describe Megaport as providing Network-as-a-Service. Megaport’s automated connectivity solutions enable rapid provisioning of circuits, contrasting sharply with traditional telcos. The discussion also ... Read more »...

Feb 28, 202536 minEp. 770

HN769: CI/CD Pipelines and Network Automation

Continuous Integration / Continuous Deployment (CI/CD) is a framework that developers use to help them manage and integrate frequent code changes. As network automation evolves, should network engineers adopt CI/CD? Guest Tony Bourke joins us to talk about CI/CD pipelines: what they are, how they’re used, and how they can support network automation efforts. We ... Read more »

Feb 21, 202558 minEp. 769

HN767: Effective Networking on the Cheap

Unless you’re building out AI infrastructure at a hyperscaler, you probably don’t have unlimited dollars. On today’s Heavy Networking we talk with guest Frank Seesink about how to build and operate networks effectively when money’s tight. We look at free and open source tools, talk about the trade-offs that come with free software, and how ... Read more »

Feb 07, 20251 hr 10 minEp. 767

HN 766: Ensuring QoE for Agentic AI With Broadcom VeloRAIN (Sponsored)

On today’s show, we’re discussing the complexities of network design for AI computing at the edge. We’re not talking about AIOps, although that might come up in this conversation. Instead, we’re focusing on how to effectively cope with the network traffic patterns happening on your network as a result of AI computing workloads. Our subject ... Read more »

Jan 31, 202555 minEp. 766

HN765: Telecom In the Bahamas: Lessons In Resiliency

Many of us have had network design discussions relating to natural disasters. What if a fire comes through? Or a flood? For most of us, those discussions don’t feel overly worthy of our attention. Yes, we should think about it. Yes, we should plan for it. If we’re really serious, we’ll even dust off the ... Read more »

Jan 24, 202553 minEp. 765

HN764: Should You Pursue a Technical Leadership Role?

Do you think you have what it takes to be a manager? Should you go for it? Laura Santamaria, host of the Technically Leadership podcast, joins Ethan Banks to discuss those questions. They talk about the motivations for moving into a management role, the challenges of managing people, and the need to understand the business ... Read more »

Jan 17, 20251 hr 5 minEp. 764

HN763: You Too Can Say ‘Yes’ to Packet Analysis

Packet capture and packet analysis is incredibly useful for problem-solving and troubleshooting. Analyzing packets is also a difficult skill to master. With the incredible array of network troubleshooting tools at our disposal, including emerging networking models for artificial intelligence, do we still need to fuss around with Wireshark in 2025? Our guest Chris Greer says ... Read more »...

Jan 10, 202556 minEp. 763

HN762: A Network Automation Roadmap

Once you get past a handful of Python scripts, network automation can be…daunting. If you want to make network automation process-driven, repeatable, reliable, and something that doesn’t just rely on your scripts and the knowledge inside your head, there’s an entire landscape that opens up before you. Have you thought about network discovery? How about ... Read more »

Dec 20, 202458 minEp. 762

HN761: Who Are You Building Automation For? An AutoCon2 Roundtable

Today’s Heavy Networking comes to you from the AutoCon2 tech event being held in Westminster, Colorado. This episode was recorded in conference room on site at AutoCon2 in November, 2024. The format? Roundtable. Four network automators have raised their hand and brought topics they want to discuss. Those topics include: Crafting tools to “listen” to ... Read more »

Dec 13, 20241 hr 2 minEp. 761

HN760: Mitigate IoT/OT Vulnerabilities with Guided Virtual Patching (Sponsored)

Today on Heavy Networking, sponsored by Palo Alto Networks, we explore how virtual patching can be used to protect IoT and OT devices. Virtual patching leverages intrusion detection and intrusion prevention, combined with threat research, to block exploits targeting IoT and OT devices. Why would you use virtual patching? When it comes to IoT and ... Read more »...

Dec 06, 202443 minEp. 760

HN 759: Deploying the BGP Monitoring Protocol (BMP) at ISP Scale

The BGP Monitoring Protocol, or BMP, is an IETF standard. With BMP you can send BGP prefixes and updates from a router to a collector before any policy filters are applied. Once collected, you can analyze this routing data without any impact on the router itself. On today’s Heavy Networking, we talk with Bart Dorlandt, ... Read more »

Nov 22, 202457 minEp. 759

HN758: How Selector Built an AI Language Model for Networking (Sponsored)

On today’s episode, artificial intelligence with sponsor Selector.AI. If you’re curious and maybe still skeptical about the value AI brings to network operations, listen to this episode. Selector is on the forefront of AIOps for networking, building models that are customized and specifically targeted at networks. What Selector is doing is NOT simply the low-hanging ... Read more »...

Nov 15, 202456 minEp. 758
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