Heavy Networking from Packet Pushers show

Heavy Networking from Packet Pushers

Summary: Join the Packet Pushers for weekly (or more!) conversations about data networking. Continuous professional development. Architecture and design, software defined, cloud, routing, switching, security, wireless, campus, enterprise, and more. Technical discussions with vendors about their products, deep dialog with real people who make networks work.

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  • Artist: Packet Pushers Interactive
  • Copyright: © 2019 Packet Pushers Interactive LLC

Podcasts:

 Heavy Networking 509: Zscaler – Enabling Fast, Secure Remote Work For Employees (Sponsored) | File Type: audio/mpeg | Duration: 53:34

Today’s show goes deep on cloud-based security, remote access, and zero trust with sponsor Zscaler. In particular we explore Zscaler Private Access, a cloud-based alternative to traditional IPSec VPNs. We take a packet walk through Zscaler’s service to understand how it works, dive into how Zscaler handles SSL encryption and decryption, review the security services that Zscaler provides, and more. Our guest is Lisa Lorenzin, Director, Transformation Strategy at Zscaler. We discuss: * How Zscaler itself is scaling up to handle increased demand * Getting security & network pros to relinquish appliances in favor of cloud-based services * Making a step-by-step transition to cloud-based security * Zscaler Private Access (ZPA) as an IPSec VPN alternative * How ZPA leverages TLS * Enabling a zero trust environment * A customer case study * More Show Links: Free Interactive Experience of ZPA (Zscaler Private Access) – Zscaler Work-From-Home Simplified – Zscaler The Definitive Guide to Secure Remote Access – Zscaler Blog: How DB Schenker is Enabling ALL APAC Employees to Work Remotely – LinkedIn

 Heavy Networking 508: Should Network Engineers Learn Advanced Programming Languages? | File Type: audio/mpeg | Duration: 1:09:15

Today’s Heavy Networking explores what it’s like to get deeply into programming while still being attached to the world of networking. We discuss the transition from day-to-day networking tasks to spending more time with code, the role of programming in automation, and what’s changed and what hasn’t over the past ten years. Our guests are Matt Stone, Brent Salisbury, Dave Tucker, and Daryn Johnson. This episode covers: * Reasons to expand your career to encompass programming * Job opportunities at the intersection of networking and coding * Programming and automation * The role of open-source software * The case for Rust and Go over Python * More Sponsor: ThousandEyes ThousandEyes gives you performance visibility from every user to every app over any network, both internal and external, so you can migrate to the cloud, troubleshoot faster and deliver exceptional user experiences. Sign up for a free account at thousandeyes.com/packetpushers and choose a free ThousandEyes t-shirt. Show Links: BGP implemented in the Go Programming Language – GitHub SALT + NETBOX + VYOS = NETWORK AUTOMATION
 + ROUTING SECURITY  – Presentation by Marek Isalski (PDF) Matt Stone on Twitter @bigmstone Brent Salisbury on Twitter @networkstatic Dave Tucker on Twitter @dave_tucker Daryn Johnson on Twitter @dirtyonekanobi

 Heavy Networking 507: Build And Run A Multi-Cloud Network Architecture With Aviatrix (Sponsored) | File Type: audio/mpeg | Duration: 1:09:35

Cloud networking is a challenge, to say the least. And when you’ve got deployments running in different public clouds, your challenges multiply. On today’s Heavy Networking, sponsor Aviatrix joins us to discuss their cloud networking architecture, which works across multiple public clouds and within single clouds. Aviatrix provides a consistent operational environment that runs on top of cloud-native constructs, providing deployment, visibility, compliance, and security for networking in AWS, Azure, GCP, and other public clouds. Our guests from Aviatrix are Hammad Alam, Principal Cloud Solutions Architect; and Shahzad Ali, Principal Cloud Solutions Architect. We discuss: * How Aviatrix abstracts the underlying network services across public clouds * The benefits of a consistent, common data plane * Leveraging Aviatrix for encryption and other security controls * Core software components including the Aviatrix controller and gateway * More Show Links: Aviatrix Aviatrix Altitude 2020 Webinar Aviatrix Documentation Aviatrix Events Aviatrix Community

 Heavy Networking 506: Where Is The Industry Headed With Intent-Based Networking? | File Type: audio/mpeg | Duration: 1:05:47

Where is the networking industry with Intent-Based Networking (IBN)? On today’s Heavy Networking show we talk about efforts to come to some agreement on just what constitutes IBN. We also look at an IETF draft that examines concepts and definitions of IBN. Our guests for today’s conversations are Jeff Tantsura, head of networking strategy at Apstra and chair of both the Routing Area and RIFT working groups at the IETF; and Phil Gervasi, a solutions architect for a national VAR. We discuss: * The problems we’re trying to solve with IBN * IBN from the perspective of the IETF * How to express business logic as intent, and the data models that will translate that intent into configurations * The role of graph databases * Why IBN focuses on the data center * Whether IBN has size limitations in the DC * More Sponsor: Cumulus Networks When customers want to build a private cloud environment that is open, modern, and simpler to manage, they choose Cumulus Linux. To learn more about open networking, head to https://cumulusnetworks.com/ Sponsor: ThousandEyes ThousandEyes gives you performance visibility from every user to every app over any network, both internal and external, so you can migrate to the cloud, troubleshoot faster and deliver exceptional user experiences. Sign up for a free account at thousandeyes.com/packetpushers and choose a free ThousandEyes t-shirt. Show Links: Intent-Based Networing – Concepts and Definitions – IETF Jeff Tantsura’s IETF profile – IETF An Introduction To Intent-Based Networking (Whitepaper) -Packet Pushers Ignition Intent-Based Networking Part 2: A Deep Dive Into Network Abstraction And Continuous Validation (Whitepaper) – Packet Pushers Ignition Phil Gervasi on Twitter NetworkPhil.com

 Heavy Networking 505: Achieving Consistent Multi-Cloud Network Policy With VeloCloud (Sponsored) | File Type: audio/mpeg | Duration: 51:09

On today’s sponsored show, we talk with VeloCloud, a VMware company, about a variety of topics including the reality of multi-cloud and what that means for design and policy, and how SD-WAN can help. Our guest is Craig Connors, Chief Architect at VeloCloud. We discuss: * How VeloCloud SD-WAN works * The proliferation of clouds including SaaS, IaaS, telco clouds, and how they need to be integrated * How the VeloCloud overlay helps you stitch together multiple clouds * Secure Access Service Edge (SASE) as a market term and how it relates to SD-WAN * Challenges in developing and enforcing security policies * VMware’s Nyansa acquisition and what it brings to VeloCloud in terms of analytics * More Show Links: Velocloud.com Velocloud.com/blog VeloCloud on Twitter Craig Connors on Twitter

 Heavy Networking 504: The State Of Optical Networking In 2020 | File Type: audio/mpeg | Duration: 1:02:53

If you’re new to DWDM and optical networking, this Heavy Networking episode aims to peel back some of the layers of these technologies to help you understand how they work, and whether you have business applications that could use DWDM. My guest is Chris Tracy, a network and systems engineer at ESnet. ESnet, or the Energy Sciences Network, provides networking services for the U.S. Energy Department research labs. We discuss: * Designing a DWDM network * Differences between CWDM and DWDM * The importance of optical cabling performance * Varities of optical networking equipment * Operational challenges * Using DWDM for data center interconnects * More Sponsor: ThousandEyes ThousandEyes gives you performance visibility from every user to every app over any network, both internal and external, so you can migrate to the cloud, troubleshoot faster and deliver exceptional user experiences. Sign up for a free account at thousandeyes.com/packetpushers and choose a free ThousandEyes t-shirt. Sponsor: WAN Summit Networking professionals are gathering at the WAN Summit in New York City onn March 9th and 10th. Find out how your peers are selecting and deploying SD-WAN. Enterprise registrants get a special rate of only $99 to attend, and Network Break listeners can get an extra 20% off with the code PACKETPUSHERS when they register for New York. Find all the details at  WANSummit.com. Show Links: Chris Tracy

 Heavy Networking 503: Achieve Multi-Domain Network Automation With Itential (Sponsored) | File Type: audio/mpeg | Duration: 43:38

As organizations engage with network automation, they want to be able to leverage their existing automation tools (scripts, Ansible playbooks, orchestrators, etc.) rather than an automation vendor’s specific tool set. On today’s Heavy Networking, we talk with sponsor Itential about its network automation approach, where you can take what you’re already using and incorporate it into a holistic automation strategy. Itential enables automation across multiple domains–physical, virtual, and cloud–and takes a low-code approach so that your engineers don’t have to become developers. Our guest is Chris Wade, Itential’s co-founder and CTO. We discuss: * Itential’s approach to multi-domain automation * How Itential incorporates existing scripts, tools, and orchestration systems * Integrating cloud and network strategies * The transition from CLI to API * The role of Swagger and JSON schemas * Use cases and real-world examples Show Links: Itential Developer.itential.io Itential on Twitter

 Heavy Networking 502: Get Off My VLAN! Old Network Engineers On What New Engineers Should Know | File Type: audio/mpeg | Duration: 57:04

I see abstractions. I see automation. I see orchestration. I see people who think that because they can use a fancy management tool, they are an infrastructure expert. For networking, this drives me a little nuts. Technology fundamentals are the foundation of network engineering. By contrast, Ansible and Terraform are tools that help you build a network, but in no way replace those fundamentals. Sometimes I worry that tooling is replacing actual knowledge of how a network works. Abstractions–management layers, web UIs, magical scripts–may be replacing deep knowledge. Welcome to Heavy Networking, grumpy old network engineer edition. I’ve gathered a couple of other grumpy folks to chat about what young networkers should know but don’t. Our guests are Chris Young and Ivan Pepelnjak. We discuss: * The problems that come with a lack of understanding core concepts * What newer engineers do know * Just how deep core knowledge needs to go * Does Spanning Tree matter? * Are network engineers expected to be too multi-disciplinary? * More Sponsor: ThousandEyes ThousandEyes gives you performance visibility from every user to every app over any network, both internal and external, so you can migrate to the cloud, troubleshoot faster and deliver exceptional user experiences. Sign up for a free account at thousandeyes.com/packetpushers and choose a free ThousandEyes t-shirt. Sponsor: VIAVI Solutions VIAVI Solutions is a network performance management leader enabling IT teams to understand user experience with a patent-pending End-User Experience score. VIAVI delivers  outcomes, not just more data. Learn more at viavisolutions.com/packetpushers. Show Links: Chris Young on Twitter Kontrolissues – Chris Young’s site IP Space – Ivan Pelpeljak’s site Ivan Pepelnjak on Twitter

 Heavy Networking 501: Automating Incident Response With NetBrain (Sponsored) | File Type: audio/mpeg | Duration: 49:24

Is network automation just provisioning of equipment? That’s what most of us think of, but there’s more to the story. Anything within the scope of networking where we can reduce manual process falls under the umbrella of automation. Our sponsor today is NetBrain, and we’re going to discuss network automation from the standpoint of fixing problems–how a tool that deeply understands network topology can help you get to the bottom of a ticket without you having to query interfaces device by device while you troubleshoot. Joining us from NetBrain are Jason Baudreau, VP of Marketing and Chris Villemez, Sr. Technical Marketing Engineer. We discuss: * NetBrain’s roots in dynamic network mapping as an alternative to static diagrams * The role of dynamic mapping in automation, SDN, and cloud * How NetBrian builds a model of the network * Tying the network map to incident response to reduce Mean Time To Identify (MTTI) * How MTTI ties in to and speeds MTTR * Customer use cases * More Show Links: NetBrain

 Heavy Networking 500: The State Of SD-WAN In 2020 And Future Forecasts | File Type: audio/mpeg | Duration: 1:10:40

On today’s Heavy Networking episode we’re examining the state of SD-WAN. The technology is already being widely adopted to help companies cut WAN costs by trading MPLS for business broadband, and providing better visibility into and policy control over applications and performance in branch and remote offices. Where will SD-WAN go in the coming years? Will it swallow up branch security? How about end point and mobile device management? Could it extend its reach from the branch to become the way you manage your campus network? We’ll discuss all these questions and more. We cover: * The current state of SD-WAN * How SD-WAN affects cloud and security initiatives * The potential evolution of SD-WAN * Identity management and SD-WAN * More Sponsor: Cumulus Networks Cumulus Networks is announcing a brand-new networking certification: the Cumulus Certified Open Networking Professional. Learn Linux networking fundamentals, including essential concepts and commands behind Linux-based open networking, and master the Cumulus Core–everything you need to know to become proficient in Cumulus Linux. Get details at cumulusnetworks.com/cert. Sponsor: WAN Summit Networking professionals are gathering at the WAN Summit in New York, March 9-10. Join your network peers to understand how others are tackling the same challenges as you. Enterprise registrants get a special rate of only $99 to attend. Plus, you get an extra 20% off with the code PACKETPUSHERS when you register for New York. Get details at WANSummit.com. Show Links: A Unified Theory Of SDWAN Futures Part 1 – Greg Ferro via Ignition SDWAN: Get A Managed Service Or Do It Yourself? (Your Incompetence Is My Opportunity) – Greg Ferro via Ignition SD-WAN: Building The Business Case & Understanding Your ROI – Jason Gintert via Ignition SD-WAN Vendor List – Packet Pushers Heavy Networking 490: Lessons Learned From A Large SD-WAN Deployment – Packet Pushers Heavy Networking 483: SD-WAN Incompetence, Myths, And Fallacies – Packet Pushers

 Heavy Networking 499: Introducing Cisco IOS XR7 (Sponsored) | File Type: audio/mpeg | Duration: 44:35

Cisco IOS XR version 7 is the topic of Heavy Networking in this sponsored episode. IOS XR7 is the latest version of the XR network OS (NOS). XR uses a modular architecture and is designed to support programmability, automation, and scale. It supports YANG models, real-time telemetry, APIs, and includes a robust routing stack. Cisco tells us XR7 is simple, modern, trustworthy, and cloud-enhanced. To get through to what that actually means, we’re chatting with Cisco guests Bhavna Prasad, Product Manager; and Reda Haddad, Distinguished Engineer. We discuss: * What’s new in version 7 * The ability to manage it with Ansible, Chef, or Puppet * Hardware support for IOS XR7, including whitebox * The API layer * Upgrading from older XR versions * New security features * More Show Links: Cisco IOS XR7 – Cisco Systems XR Docs An Architectural Approach to Flexible Consumption for Service Providers with IOS XR – Cisco Blogs Cisco Crosswork Network Automation – Cisco Systems Cisco Unveils Plan for Building Internet for the Next Decade of Digital Innovation – Cisco Systems End-of-Sale and End-of-Life Announcement for the Cisco IOS XR Software Release 6.6 – Cisco Systems IOS XR Coverage on Packet Pushers – Packet Pushers

 Heavy Networking 498: Creating A Single Source Of Truth For Network Automation | File Type: audio/mpeg | Duration: 1:25:01

A major automation challenge is where the information describing your network should live. You might think that your network would be best described by the config files on your switches and routers. Actually, that’s wrong. The configuration on the devices might–or might not–reflect what you intend the network to be. Plus, network device configurations aren’t easy to integrate with the rest of an IT provisioning process. What you require to facilitate network automation is a single source of truth. A source of truth that’s programmatically accessible, reflects intended state, and enables others to stand up infrastructure correctly without you getting in the middle of every provisioning request. Tim Schreyack joins us today to discuss a network automation solution using Ansible and Python, and of course, a single source of truth. Tim is a senior sales engineer at Dell Networking and has a background in network engineering and automation. He’s not here as a Dell spokesperson, and this isn’t a sponsored show. We discuss: * Why repeatability is the goal, and your organization’s size doesn’t matter * The pros and cons of using Ansible and Python as a singe source of truth * Jinja templates * Picking a database, and NetBox pros and cons * Automation differences in greenfields and brownfields * Where to start with automation * More Sponsor: Viavi Solutions VIAVI Solutions is a network performance management leader enabling IT teams to understand user experience so they can solve performance problems fast. Learn more at viavisolutions.com/packetpushers. Sponsor: ThousandEyes ThousandEyes gives you performance visibility from every user to every app over any network, both internal and external, so you can migrate to the cloud, troubleshoot faster and deliver exceptional user experiences. Sign up for a free account at thousandeyes.com/packetpushers and choose a free ThousandEyes t-shirt. Show Links: Powering Your Automation: A Single Source of Truth – CHINOG – June 27, 2019 – YouTube Powering Your Automation: A Single Source of Truth – NANOG – November 5, 2019 – YouTube Tim Schreyack on LinkedIn Heavy Networking 452: Using NetBox As A Source Of Networking Truth – Packet Pushers

 Heavy Networking 497: Good Reasons To Start Your Tech Blog | File Type: audio/mpeg | Duration: 1:02:42

If one of your New Year’s resolutions is to blog more, or start a blog, this episode is for you. Technical blogging comes with benefits. For one, writing about a subject helps you understand it better (and also helps you realize the limits of your knowledge). Blogging can raise your profile. When you share information or experiences with a larger audience, you can develop a reputation for expertise. This higher profile may create  opportunities to speak at events, get access to conferences or early product releases, and maybe even get a better job. A technical blog can serve as a kind of living resume that potential employers and recruiters can see to get a sense of your capabilities. When you share technical information, troubleshooting tips, study hacks, analysis, and other content, you help other IT pros who may be looking for information. It’s also not uncommon that you’ll help yourself–more than one blogger has run into a problem, hit up Google, and found an old post with a solution. Our guests for today’s show are John Mark Troyer, founder of the Influencer Marketing Council and TechReckoning; and Stephen Foskett, founder of Tech Field Day and GestaltIT. We discuss: * The motivations and purposes for blogging * How to get started * Favorite blogging tools and writing tips * The “small b” approach to blogging (don’t chase metrics, not every post has to be epic, etc.) * Whether to mix personal and professional writing * More Sponsor: Cradlepoint The future of the WAN is wireless, but a wireless connection is only as good as the edge. Cradlepoint unlocks the power of advanced cellular through wireless edge solutions that are delivered the way you consume everything IT: as a service. Reliable. Elastic. Simple to manage from anywhere. Learn more about Cradlepoint’s cloud-managed LTE solutions at cradlepoint.com/packetpushers. Sponsor: ThousandEyes ThousandEyes gives you performance visibility from every user to every app over any network, both internal and external, so you can migrate to the cloud, troubleshoot faster and deliver exceptional user experiences. Sign up for a free account at thousandeyes.com/packetpushers and choose a free ThousandEyes t-shirt. Show Links: Tech Field Day GestaltIT.com Influencer Marketing Council Techreckoning.com Stephen Foskett on Twitter Jon Mark Troyer on Twitter Arse First Method of Technical Blogging [PDF/iPad/Kindle] – Greg Ferro

 Heavy Networking 496: Packet Pushers 2019 Live Audience Q&A | File Type: audio/mpeg | Duration: 1:34:59

On December 18, 2019, the Packet Pushers hosted a livestream gathering on YouTube where the Packet Pushers and special guests answered audience questions. This podcast episode is the audio capture of that livestream. Our conversation covers: * Cisco’s new ASIC and 8000 router family * Will the multi-cloud ever get a hypervisor, and what role will Kubernetes play? * Cisco’s new certification path and whether certs teach deep knowledge or specialized product operation * Will SDA and ACI merge into a single fabric? * The current state of VNF performance * Zero-trust environments and software-defined perimeters This is our final Heavy Networking show for 2019. Thanks for another year of your attention, support, and conversation. We’ll be back in January 2020 with more nerdy networking and IT shows to keep you company in the car, at the gym, or wherever you listen. Enjoy the holidays and have a Happy New Year! Sponsor: ITProTV Get over in-depth technical training from ITProTV. ITProTV offers online instruction in CompTIA, Cisco, VMWare, Microsoft and more. You can stream courses live and on demand on your favorite device. Sign up at itpro.tv/packet and save 25%. Use the code PACKET25 when you check out. Sponsor: ThousandEyes ThousandEyes gives you performance visibility from every user to every app over any network, both internal and external, so you can migrate to the cloud, troubleshoot faster and deliver exceptional user experiences. Sign up for a free account at thousandeyes.com/packetpushers and choose a free ThousandEyes t-shirt. Show Links: Ethan Banks Greg Ferro Tommy McNicholas Ned Bellavance Drew Conry-Murray Russ White Tom Bragg Network Break 265: Cisco Chips At Broadcom With New ASIC; AWS Gives Networking Some Love – Packet Pushers Day Two Cloud 027: Do Enterprises Need Kubernetes? – Packet Pushers The Hedge Episode 5: Geoff Huston on DoH – The Hedge The Hedge Episode 6: Geoff Huston on DoH – The Hedge Packet Pushers Holiday Edition Livestream December 18, 2019 – The Packet Pushers

 Heavy Networking 495: Smart, Effective, Automated SecOps With Tufin (Sponsored) | File Type: audio/mpeg | Duration: 43:44

Cloud and digital transformation initiatives are pushing security operations teams to the limit. The growing complexity of cloud and on-premises environments make it harder for security operations to keep pace with developers, manage proper access to resources, and ensure that the right controls are in place and policies are met. It’s difficult for security teams to implement approaches such as zero trust and microsegmentation because they are swamped with day-to-day tasks. At the same time, organizations can’t just throw more bodies at the problem because it’s hard to recruit and train security professionals. On today’s sponsored podcast we examine how automation can help improve the effectiveness of security operations. Joining us is Ofer Or, Vice President of Products at Tufin, our sponsor for this episode. We discuss: * The growing complexity of enterprise environments on premises and in the cloud * Automating labor-intensive tasks to improve the effectiveness of security operations * Getting proper visualization of your infrastructure to understand policy impact * Benefits of network segmentation on premises and in the cloud, and how to implement it * How Tufin products such as Iris and Orca address policy management and zero trust security for cloud applications * More Show Links: Tufin.com  Tufin Iris Tufin Orca

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