Filtrer par genre
Do you dread forgetting to use the “add” command on a trunk port? Do you grit your teeth when the coffee maker isn't working, and everyone says, “It’s the network’s fault?” Do you like to blame DNS for everything because you know deep down, in the bottom of your heart, it probably is DNS? Well, you're in the right place! Telemetry Now is the podcast for you! Tune in and let the packets wash over you as host Phil Gervasi and his expert guests talk networking, network engineering and related careers, emerging technologies, and more.
- 36 - The Cloudification of Service Providers
The telecom industry is going through a major transformation, referred to as “cloudification.” This isn’t just a buzzword, either. Cloudifcation represents a fundamental shift in how telecom services are delivered and managed. In this episode, Nina Bargisen unpacks some terminology and discusses exactly what cloudification in the telco industry is all about.
Thu, 09 May 2024 - 48min - 35 - Exploring Submarine Telecommunication Cable Technology, Cuts, and Risks with Doug Madory
In this episode, host Phillip Gervasi is joined by Doug Madory, an expert in internet measurement and submarine cable activity. We dive into the implications of recent submarine cable cuts in the Red Sea, and discuss the critical role these cables play in global communication. We explore how cables are laid, repaired, and the unique challenges they face, including geopolitical tensions and natural hazards. Join us as we illuminate the complex, often unseen world of submarine telecommunication infrastructure.
Thu, 25 Apr 2024 - 55min - 34 - Demystifying Generative AI and Large Language Models with Ryan Booth
In this episode, Ryan Booth joins Telemetry Now to discuss Generative AI, Natural Language Processing, and Large Language Models. We dive into the history, components, and mechanisms of how LLMs work, how we can deal with hallucinations, and how AI can help improve IT operations.
Thu, 11 Apr 2024 - 62min - 33 - Welcome to Telemetry Now, Season 2
Telemetry Now is a podcast about networking, network engineering, observability, and emerging technologies. Each episode features host Phil Gervasi in conversation with subject matter experts about what's going on in networking and the technology industry in general.
Wed, 10 Apr 2024 - 0min - 32 - Using Paris Traceroute for Modern Load-Balanced Networks
Traditional traceroute is a widely used and very useful tool, but it struggles to accurately trace load-balanced networks. In this episode, Dr. Justin Rohrer joins us to talk about Paris traceroute, an extension of traditional traceroute, and how it's used to trace paths on a network that uses flow-based load balancing, or in other words, most of the internet. Learn more about Paris traceroute in Phil's blog post, The Power of Paris Traceroute for Modern Load-Balanced Networks.
Tue, 12 Mar 2024 - 28min - 31 - Total Network Operations with Scott Robohn
The network is how we deliver the services and applications we use every day at home, at work, and when we're on the move. That means the network is more important than ever, but it's also more complex than ever. To effectively manage this entire system means having a holistic view of the network, or in other words, Total Network Operations. In this episode, Scott Robohn joins us to talk about TNops and why we need to rethink how we approach network operations.
Tue, 23 Jan 2024 - 50min - 30 - SNMP is Dead. Long Live SNMP!
The networking industry has declared that SNMP is dead, but is it? Is streaming telemetry all we should focus on today, or is SNMP still useful even in modern networking? In this episode, Chris O'Brien, Product Manager at Kentik, joins us to talk about the reality of SNMP and streaming telemetry and his thoughts on where the industry is headed.
Tue, 09 Jan 2024 - 32min - 29 - Looking back and peering ahead
In this episode, Leon Adato, Nina Bargisen, and Doug Madory join the show to discuss their perspective on some of the biggest events in networking and tech in 2023. We discuss notable outages, security breaches, new submarine cables coming online, major acquisitions, and what the future might hold for networking and technology in 2024.
Fri, 22 Dec 2023 - 73min - 28 - Why the network industry is struggling to fully adopt network automationTue, 28 Nov 2023 - 41min
- 27 - Are generative AI and LLMs the future of SDN?
Remember SDN? It was the topic of every other blog and podcast 10 years ago, but where is it today? In this episode, Leon Adato, Technical Evangelist with Kentik, joins us to talk about the state of SDN today and how the latest AI craze may be the newest manifestation of software-defined networking.
Tue, 14 Nov 2023 - 42min - 26 - What makes a good network design?
What makes a good network design? Is it meeting all the technical requirements of the business? Is it coming in under budget? Maybe it’s ensuring the network is as resilient as possible, regardless of budget. Or is it following the network vendors’ validated design guide right down to every config snippet?
Anyone who’s worked in this business for more than 5 minutes knows that the answer is "it depends." in this episode, Brian Gleason, veteran network engineer, sysadmin, network architect, and currently a sales engineer with Juniper, joins us to talk about what makes a good network design.
Tue, 24 Oct 2023 - 50min - 25 - How data center networking is changing in the age of AI
The advanced computing hardware that handles artificial intelligence workloads has special requirements more traditional data center networking can't meet. In this episode, Justin Ryburn, Field CTO at Kentik and a veteran network engineer in both the enterprise and data center spaces, joins us to discuss changes in data center networking to accommodate the latest AI workloads.
Tue, 10 Oct 2023 - 36min - 24 - Vendor lock-in and how open source software has been changing the tech industry
What’s so bad about vendor lock-in? Those are some serious fighting words in the tech industry, but it’s what we’re talking about in this episode of Telemetry Now. Rosalind Whitley, a Director of Product Marketing at Kentik and an experienced developer and sysadmin joins us to talk about her opinions on open source, vendor-lock-in, and how technologies like cloud, containers, and automation have sort of changed the landscape of full stack vendor lock-in.
Tue, 19 Sep 2023 - 68min - 23 - From bootcamp to code: How military service can shape a career in techTue, 05 Sep 2023 - 54min
- 22 - Demystifying the role of AI and large language models in networkingTue, 22 Aug 2023 - 54min
- 21 - Understanding the health of the internet with Romain Fontugne
In this episode, Dr. Romain Fontugne, a subject matter expert in internet measurement and understanding the internet as a whole, discusses his experience and work monitoring global routing, why that's critical to do today, the technology involved, and even some of the geo-political ramifications of understanding the internet as a dynamic, interdependent system.
Tue, 08 Aug 2023 - 52min - 20 - Digital revolution and a journey through networking history
In this episode, Dr. Larry Press joins us to talk about his experience working with the early internet and his connection to several important moments in history. Listen to learn about his involvement in helping key people in the USSR send and receive information out of the country during the coup attempt of the early 1990s as well as several other significant events over the years.
Tue, 25 Jul 2023 - 41min - 19 - The journey from network to cloud engineer - a career evolutionTue, 11 Jul 2023 - 40min
- 18 - Demystifying CDNs: Behind the Scenes of Rich Content Delivery
The way we consume content today has meant content creators and service providers have had to come up with ways to deliver high-quality and real-time content over the public internet down to the device in our hands.
CDNs, or content delivery networks have developed to solve this problem, and today, as we focus on more livestreamed content, they’re at it again to solve the technical challenges of delivering high-quality live content over the public internet to wherever you are in the world.
In this episode, Nina Bargisen, a subject matter expert in the service provider and CDN spaces, joins us to talk about why CDNs exist, how they work, and what the future holds for content delivery.
Tue, 27 Jun 2023 - 44min - 17 - Digital Dilemmas: Navigating Social Media Security and PrivacyTue, 13 Jun 2023 - 56min
- 16 - Shifting Orbits: Solving Data Gravity by Relocating the ProblemTue, 30 May 2023 - 30min
- 15 - Enriching Your Network Telemetry for Real-World InsightTue, 16 May 2023 - 22min
- 14 - The MANRS initiative to secure global internet routing
For years, routing on the global internet has been built mainly on trust relationships. There has been little to protect the entire internet community from accidental or intentional spoofing of IP address spaces and autonomous systems, and there was very little governance protecting the security of routing among providers other organizations with an internet presence.
In this episode of Telemetry Now, Aftab Siddiqui, Senior Manager of Internet Technology for the Internet Society, joins us to discuss MANRS, or the mutually agreed norms for routing security, which was started specifically to set forth security principles and guidelines for routing security on the global internet.
Tue, 02 May 2023 - 49min - 13 - Securing Global Routing with RPKI and BGP Security
Historically, the internet has operated on a sort of trust relationship. Trust among those advertising their own networks out to the world and trust from those learning about those networks. But there hasn’t been much to prevent anyone from advertising incorrect information, and therefore manipulate where others send their traffic sometimes to the extent that traffic might even be blackholed causing outages. In this episode of Telemetry Now, Job Snijders, Principal Engineer at Fastly and a prolific contributor to efforts securing global routing, joins us to talk about how we can secure global internet routing with technologies such as ASPA, RPKI validation, Peerlock, and to an extent, BGP Security.
Tue, 18 Apr 2023 - 64min - 12 - Data-Driven Defense: Exploring Global Cybersecurity and the Human Factor
Today's cybersecurity landscape is about less about knowing all about hashes and encryption, and more about understanding data, politics, and how adversaries operate in the real world. In this episode, TJ Sayers, Manager of the MS and EI-ISAC’s Cyber Threat Intelligence team at the Center for Internet Security, joins us to talk about data-driven defense and how the human factor plays a much bigger role in cybersecurity defense than we realize.
Key Takeaways:
[00:01 - 01:10] Introduction[01:20 - 03:49] Meet TJ Sayers, Manager of Cyber Threat Intelligence at The Center for internet Security[03:50 - 06:53] Unconventional paths to network engineering[06:54 - 09:29] The most prolific threats happening today, and what we should be worried about[09:30 - 11:19] Criminal syndicate models in the cyber world[11:21 - 15:30] A defense in-depth layered approach to network fires and alerts[15:45 - 21:25] Observing malicious activity on the network and determining incident information[21:59 - 24:55] Comparing tremendous amounts of data, and subjectivity[24:56 - 26:57] Combatting alert fatigue through a Security Information Event Manager platform[26:59 - 29:20] The mission of The Center for Internet Security[29:21 - 30:43] Working with organizations to monitor, audit, defend, and report on cyber threats[30:43 - 33:30] What types of telemetry data TJ and his team use to detect threats[33:31 - 39:43] The focus on improving the cybersecurity landscape[39:53 - 43:09] Punitive measures to combat bad actors[43:12 - 50:09] Threats to our public utilities gridTue, 04 Apr 2023 - 51min - 11 - Connecting the world: Undersea cables with Alan Mauldin
With the proliferation of public cloud technologies and Wi-Fi, it can be easy to forget that much of the world's connectivity happens via hardwired submarine networking cables and infrastructure that crosses the planet's oceans. In today's episode, host Phil Gervasi sits down with Doug Madory and Alan Mauldin to discuss geography and geopolitics impact on network access. Alan Mauldin is a Research Director at TeleGeography, and has worked with Doug for many years, and together they help paint a picture of how internet flows and connects continents, that is when sharks aren't biting through the cables! Is it a myth? Tune in to find out.
Key Takeaways:
[00:01 - 02:19] Introduction to Alan Mauldin[02:23 - 05:31] How Doug and Alan got to know and work together with TeleGeography[05:31 - 06:17] Conferences related to network geography[06:19 - 07:44] Explaining the flow of networks across submarine cables and satellites[07:46 - 08:37] Cables vs satellites, different use cases[08:37 - 12:06] Everyone benefits from investments by content providers in submarine cables[12:07 - 13:53] Shared ownership and building submarine cables for the public good[13:54 - 16:51] A shift towards fiber pairs to improve latency across distances[16:53 - 19:11] Why would a cable be retired? Did a shark eat it, or is that a myth?[19:12 - 23:03] Who is involved in making submarine cables reality, who owns the responsibilities?[23:04 - 25:17] The geopolitics of laying cables between countries who aren't on the friendliest terms[25:19 - 30:36] The ALBA-1 submarine cable to Cuba[30:36 - 33:43] Context around direct and indirect side effects with the US/China cables[33:44 - 39:53] What has changed with undersea cable technology in regard to the growth of public cloud technology?[39:53 - 45:51] Built-in logic and intelligence in undersea cable infrastructureTue, 21 Mar 2023 - 47min - 10 - Building a successful networking team in 2023
Building and operating a network has certainly changed over the last few years. It’s no longer a matter of just knowing how spanning tree works, or all about OSPF, or how to configure a VPC on your data center switches. Looking over the landscape of the industry today, we can see network engineers very much involved in public cloud, in programming, and developing an understanding of the nuance of how applications actually work over the network.
In this episode, Tony Efantis, CCIE and principal network security engineer working joins us to discuss what we expect from network engineers today, and what it means to build a successful networking team in 2023.
Key Takeaways
[00:00 - 03:04] Introduction[03:08 - 07:34] About Tony Efantis and his career in IT[07:35 - 12:42] A help desk job didn't help Tony in the ways you might think[12:44 - 18:12] Building a team of engineer "journeymen"[18:12 - 20:59] Why Tony has organized his team with blended skills from multiple domains[21:00 - 23:10] Scripting it out[23:11 - 27:57] Enjoying the puzzle pieces of problem solving[28:06 - 33:49] Reducing friction and frustration for proper tools, and finding joy IPv6 solutions[33:51 - 36:43] Sniffing out someone's capabilities to learn[36:44 - 40:49] Tony's first command line cut over[40:51 - 46:04] How a multidisciplinary team offers advantages in IT and cloud networking[46:04 - 48:03] Certifications and college degrees[48:04 - 50:38] Candidates with broader knowledge outside of public cloud, thoughts on automation[50:42 - 55:53] Professional maturity is building networks that are invisible[56:05 - 01:00:40] We don't like complexity for complexity's sake[01:00:41 - 01:02:08] Tony's CCIE exam resultsTue, 07 Mar 2023 - 63min - 9 - The role of internet measurement in the battle for digital rights
In this episode, Peter Micek, General Counsel and UN Advocacy Manager at Access Now, joins us to discuss the fight for digital rights across the globe. We touch on nation-state activity to put down protests, the nature of digital rights as part of human rights, and the role internet measurement data has played in the effort to secure peoples' access to information.
Key Takeaways:
[00:00 - 02:07] Episode introduction[02:26 - 04:32] How Peter got into digital rights advocacy and human rights[04:35 - 06:05] Introduction to Doug Madory[06:13 - 09:33] Human rights and digital rights, are they synonymous?[09:33 - 11:34] Background on the Egyptian internet crisis in 2011, and the practice of internet shutdowns[11:35 - 12:54] The severity of the Egyptian shutdown[12:58 - 14:20] How other countries saw an opportunity to emulate the Egyptian government[14:21 - 16:12] The collateral damage and impact of the government shutting down internet infrastructure[16:14 - 19:01] Changes in policy and the UN Human Rights Council's first resolution on internet free speech[19:01 - 21:16] Access Now's guide "The Anatomy of an Internet Shutdown"[21:18 - 23:31] Censorship, internet shutdowns, and human rights violations: how they're connected[23:32 - 24:52] The end goals of internet shutdowns[24:53 - 27:45] Why do countries do this when data shows it isn't particularly effective? Lessons from Yemen, Ukraine, Syria, and the Arab Spring[27:46 - 29:35] How do governments even achieve completely shutting down the internet and/or services?[29:36 - 31:01] Combatting shutdowns through cyber security and change mitigation[31:02 - 31:45] Why it's more difficult for countries to shutdown infrastructure when intertwined with Western countries[31:46 - 33:18] How Access Now works with leaders to show that internet shutdowns aren't effective[33:19 - 35:01] What do gains in preventing shutdowns look like? Is it just turning the internet back on?[35:06 - 37:16] Egypt as a mental model for governments shutting down internet infrastructure[37:21 - 39:54] How Access Now tries to reinforce meaningful connectivity[39:57 - 42:22] Access Now's global interests and how they track activity with Doug[42:25 - 45:21] The kind of information Doug provides Access Now from a technical perspective[45:33 - 47:23] What Access Now's one sentence bumper sticker would sayTue, 21 Feb 2023 - 49min - 8 - Service Provider Cord Cutting with Greg Villain
Streaming media has taken over as the primary medium we get our content, and service providers have had to adapt, change, and re-think their strategies to stay profitable. In this episode, Greg Villain joins Telemetry Now to talk about cord cutting and what service providers have done to stay in business.
Key Takeaways
[00:00 - 01:45] Introduction to Greg Villain[01:46 - 03:22] What Greg means when he talks about "cord cutting"[03:28 - 04:48] The benefits of cord cutting and shifting from channels to streaming[04:50 - 05:52] Multiple streaming platforms versus one cable platform with more limited functionality[05:54 - 09:47] The effect on service providers trying to deliver tv, movie, video content through different mediums[09:50 - 12:56] Piggybacking providers and thin margins[12:58 - 13:51] Residential consumer grade internet a lost leader for service providers?[13:53 - 15:09] Considerations for residential consumer grade internet and enterprise/business customers[15:13 - 20:12] Strategies for building an over-the-top network[20:22 - 22:26] Where Greg sees the landscape going with service providers[22:26 - 27:49] A greater acceptance of white box switching and routing, open networkingTue, 07 Feb 2023 - 29min - 7 - A Year in Review of Internet Analysis - with Doug Madory
Between volcanoes erupting, misconfigurations, and nations purposely shutting down the internet to stop a protest, 2022 was a busy year for network outages. In this episode, Doug Madory, Kentik's Director of Internet Analysis, joins us to talk about some of the highlights of 2022 and also discuss some of the more common reasons we see large-scale network outages in the first place.
Key Takeaways:
[00:00 - 03:05] Introduction to Doug Madory, Director of Internet Analysis at Kentik[03:08 - 06:52] An eruption in Tonga that wiped out its undersea hardline[06:53 - 08:34] The Egyptian government and an Internet chokepoint[08:36 - 12:52] The ins and outs of submarine Internet cables[12:53 - 18:01] The move towards satellite connections on a global scale[18:02 - 23:18] The Rogers outage[23:20 - 26:16] The ripple effect, and a lesson in humility[26:17 - 28:06] 2021, the year of learning and Internet giants falling to their knees[28:07 - 31:29] Decentralization and outages as the flipside of success[31:30 - 34:42] Providers and regulations[34:41 - 40:21] National governments, and shutting down flows of information[40:25 - 46:14] Hijacking and routing security in relation to ransomware[46:14 - 50:21] Spaghetti Westerns and interacting with other countries to keep the peace[50:27 - 52:10] A determined adversaryTue, 24 Jan 2023 - 53min - 6 - What does it mean to be a network engineer in 2023—with Brian Davenport
In a world that is constantly iterating and improving, the nature of what it means to be a network engineer is evolving. Host Phil Gervasi and Brian Davenport, a Solutions Engineer at Kentik, discuss the latest skills and philosophies that help aspiring engineers and current ones to stay in the know. In this episode the two talk shop about degrees versus certifications, adopting new languages, and the softer skills that will help you go far in your engineering and programming adventures.
Key Takeaways
[03:10 - 06:22] Meet Brian, a solutions engineer for Kentik[06:29 - 07:46] The nature of being a network engineer is changing[07:49 - 11:23] The latest skills engineers need to acquire to adapt: Python, C, and databases[11:30 - 13:13] "Internet weather" and understanding network visibility and performance embedded in a network[13:19 - 18:14] Degree vs certifications, a real honest answer[18:15 - 22:53] Adopting new languages and technologies[22:54 - 26:53] A packet walk exercise, understanding connections and how data travels[27:06 - 30:22] The softer skills necessary in a networking and programming environment[30:25 - 31:59] Having new puzzles to solve[32:15 - 34:55] Being humble about what you don't knowTue, 10 Jan 2023 - 36min - 5 - Underutilized and underrated: why flow data is still an engineer's best friend
In this episode of Telemetry Now, Justin Ryburn, the VP of Global Solutions Engineering at Kentik, joins us to talk discuss why flow data like NetFlow, IPFIX, and sFlow are still one of the best visibility tools in a network engineer's toolbox.
Key Takeaways
[00:52 - 01:24] Meet Justin Ryburn[01:45 - 03:08] Losing airline and hotel points during COVID[03:11 - 05:08] Flows and SNMP, passe?[05:09 - 08:04] A push model vs pull model with streaming telemetry[09:03 - 11:52] Flow data on a macro level and packets[11:51 - 13:36] The networking industry focusing on new data and telemetry[15:05 - 17:26] Real time analysis and troubleshooting, a tool in the toolboxTue, 27 Dec 2022 - 18min - 4 - What does machine learning have to do with network visibility?
Is data science, and specifically machine learning, just network industry marketecture, or do the process and workflows of ML actually solve real problems for network engineers working in the trenches? In this episode of Telemetry Now, Estefan Ortiz, Ph.D., joins us to talk about what ML has to do with network visibility and the truth of what it can do to solve real problems in networking.
Key Takeaways
[00:39 - 03:10] Introduction to Estefan Ortiz[03:15 - 04:27] The definition of data science[04:30 - 06:38] Why the rise in discussions about data science across industries?[06:39 - 09:52] A desire to solve networking problems in new ways, and how data and the types we use can help[09:53 - 10:38] Machine learning, applied statistics, and figuring out the problem you're trying to solve[10:57 - 13:41] Is this a solution looking for a problem, and solving for time series data[13:41 - 17:16] Detecting patterns in problem solving, actionable insights tied to operational data[17:16 - 18:57] An iterative approach to problem solving with different processes and trial and errorTue, 13 Dec 2022 - 19min - 3 - Is moving everything to public cloud always the best choice?
Not too long ago, it seemed everyone's plan was to lift and shift an entire data center's worth of workloads to the public cloud. Today, the industry is starting to rethink that strategy and be much more thoughtful as to what should go in the public cloud, why, and how. In this episode, Ted Turner, a cloud solutions architect at Kentik, joins Telemetry Now to talk about the changing narrative around moving everything to the public cloud.
Key Takeaways
[00:45 - 02:06] Meet Ted Turner[02:07 - 04:10] Public cloud and the elephant in the room, cost savings[04:15 - 06:35] Duped into thinking the cloud was cheaper, versus the utility today[06:36 - 10:08] The complexity of the networking industry and costs associated[10:10 - 12:51] Dropping costs dramatically. Express routes, direct connects, and more.[12:52 - 13:59] Cost versus performance of cloud implementations[13:59 - 15:23] Visibility essential for modern, effective migration strategies[15:25 - 17:43] DNS and impacts on costsTue, 29 Nov 2022 - 18min - 1 - What does network observability really solve?
Network observability is a popular term in the industry right now, and everyone seems to have their own definition. In this episode of Telemetry Now, Avi Freedman, CEO, and co-founder of Kentik joins us to talk about what network observability is really all about, what makes it work, and what problems it solves for packet nerds and router jockeys trying to keep the lights on.
Key Takeaways
[00:33 - 02:03] A shared love of Star Trek[02:04 - 04:10] Observability predates network technology, and inferring status[04:11 - 06:35] Visibility into all networks and observability as necessity[06:35 - 09:44] Ingesting telemetry and extrapolating inferences from data[09:48 - 11:19] Collecting everything that can be collected, in an ideal world everything would be collected[11:22 - 13:54] Why are we correlating, normalizing, and standardizing data acquisition? And what is the problem we're solving?[13:54 - 16:09] The flow of data and how it gets enriched along the wayTue, 15 Nov 2022 - 17min
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