100 episodes

An unabashedly nerdy swan dive into networking technology. Weekly episodes feature industry experts, real-life network engineers and vendors sharing useful information to keep your professional knowledge sharp.

Heavy Networking from Packet Pushers Packet Pushers Interactive, LLC

    • Technology
    • 4.8 • 305 Ratings

An unabashedly nerdy swan dive into networking technology. Weekly episodes feature industry experts, real-life network engineers and vendors sharing useful information to keep your professional knowledge sharp.

    Sinefa Blends Network Data, Synthetics To Measure End User Experience (Sponsored)

    Sinefa Blends Network Data, Synthetics To Measure End User Experience (Sponsored)

    Network monitoring has been around for a long time, but the explosion of software in networking means that monitoring is practical and, dare I say, it easier than ever. More importantly, people are finding that network monitoring in 2020 actually works.

    In today’s sponsored show, we talk with Sinefa about its Digital Experience Monitoring capabilities. Sinefa brings together multiple domains including network traffic, DPI, end point monitoring, and synthetic transactions to get clear, accurate, and actionable information on how network performance affects the end user experience with applications. Sinefa says it can also speed up the resolution of front-line troubleshooting.

    Sinefa relies on software and hardware probes at branch locations, the data center, and in cloud VPCs; as well as synthetic transaction capabilities; an end user agent; and a SaaS platform to ingest and analyze data.

    Our guests from Sinefa are Chris Siakos, CTO; and Alex Henthorn-Iwane, VP of Product Marketing.

    We discuss:

    * Observability for understanding end user application performance

    * Making operations and troubleshooting as easy as possible

    * Combining network traffic and synthetics for a more full picture of the end user experience

    * Benefits of the end user agent, including the ability to identify Wi-Fi issues on home networks

    * Customer use cases

    * More

    Show Links:


    @Sinefa_Inc – Sinefa on Twitter

    • 41 min
    Preventing The 4poKalypse With Inter-Domain Multicast

    Preventing The 4poKalypse With Inter-Domain Multicast

    The 4poKalypse is coming, and service providers need more tools in their toolbox to combat congestion in eyeball networks. Local content caches close to the eyeballs (pretty much how we do it today) isn’t going to be quite enough.

    Multicast to the rescue. You mean, like on the public Internet? Multicast? For reals? Didn’t we, uh, try that once? I thought that didn’t work out so well…why will it work this time?

    Jake Holland of Akamai is here to tell us just why inter-domain multicast is important, and why…this time…we can make it work.

    We discuss:

    * Why content caches aren’t good enough in a 4K world

    * The nitty-gritty on “inter-domain”

    * What’s different about inter-domain multicast this time around?

    * Relevant IETF proposals

    * Potential drawbacks in hardware, software, and networks

    * How listeners can prepare and participate

    * More

    Sponsor: Apstra

    Today’s episode is sponsored in part by Apstra. Apstra enables continuous automation and validation of your data center network architecture and operations. Find out more at apstra.com/packetpushers.

    Sponsor: DriveNets

    DriveNets offers a network cloud: a hugely scalable network on a disaggregated platform. Get higher capacity at a lower cost. FInd out more at drivenets.com/resources.

    Show Links:

    Why Inter-Domain Multicast Now Makes Sense – APNIC Blog

    MulticastReceiver Explainer – GitHub

    RFC 8777 – IETF

    Discovery Of Restconf Metadata for Source-specific multicast – IETF

    Asymmetric Manifest Based Integrity – IETF

    Circuit Breaker Assisted Congestion Control – IETF

    Multicast Source Discovery Protocol (MSDP) Deployment Scenarios – IETF

    Jake Holland on LinkedIn

    GrumpyOldTroll – Jake Holland’s GitHub repo

    • 1 hr 9 min
    Running An Open, Automated Data Center Fabric With Nokia (Sponsored)

    Running An Open, Automated Data Center Fabric With Nokia (Sponsored)

    Data center fabrics seem like they’ve been talked to death in the networking industry. Lots of products. Some protocol work. Various reference models.

    We’ve got intent based networking that will stand up your data center fabric for you. We’ve had an explosion in network OS choices that can be paired with a variety of whitebox platforms. We know how to build leaf-spine fabrics. We can handle standing up and tearing down new pods and interconnecting them with other pods. We can run processes in containers, isolate them from one another, and create exactly the forwarding environment we need.

    It seems like we’ve got this data center fabric thing nailed.

    But do we? The answer is…it’s complicated. Maybe we have the capabilities, but we don’t have the operations. Maybe we can scale out, but aren’t so good at visibility. Maybe we can do ECMP really well, but troubleshooting gray failures is a struggle.

    Why is building a massive fabric almost a trivial exercise, while operating that fabric is not? Our sponsor today is Nokia. If you’re of the Cisco/Juniper/Arista mindset, maybe Nokia isn’t top of mind for you. But perhaps they should be. Nokia has been a mainstay in IP networking for a very long time, and have thought deeply about the challenge of operating data center fabrics. And they’re here to explain to us what they’ve built and why it will improve networkers’ lives.

    In today’s discussion, we cover Nokia’s SR Linux and Fabric Services Platform. These products are key to helping improve your data center fabric operations. Joining us is Steve Vogelsang, CTO for IP and Optical Networks at Nokia.

    We discuss:

    * Why Nokia is entering the data center switching business

    * Highlights of SR Linux

    * Details of Nokia’s Fabric Services Platform

    * Using the Fabric Services Platform for intent-based networking

    * Whitebox switches

    * More

    Show Links:

    Nokia Data Center Fabric

    Nokia Service Router Linux (SR Linux)

    Nokia Hardware Platforms For Data Center Fabrics

    Nokia Fabric Services Platform

    Data Center tour launch video

    SR Linux Tech Video

    SR Linux Product Description

    Fabric Service Platform Tech Video

    Fabric Services Platform Product Description

    Nokia on Twitter

    • 46 min
    Ansible Vs. Terraform For Network Automation

    Ansible Vs. Terraform For Network Automation

    Ansible & Terraform seem the same…ish? You give the tool some instructions, and the tool makes something happen out there in the infrastructure. And yet, it seems the networking community has coalesced around Ansible for network device automation, and Terraform for the cloudy stuff.

    Why this seeming divide? Are the two tools really that different? Is each one fit for just one purpose?

    We examine this subject with Ned Bellavance, speaking on behalf of Terraform; and Josh VanDeraa, speaking on behalf of Ansible.

    We cover:

    * Similarities and differences in Ansible and Terraform

    * Ansible’s affinity with network devices

    * Terraform’s hold on cloud infrastructure

    * Whether you can use either for each use case

    * Is one tool good enough?

    * More

    Sponsor: ITProTV

    ITProTV helps you make your heavy networking skills–and others–even heavier. Get a 7-day free trial and 30% savings off of any plan you choose! Visit ITPro.TV/packetpushers and use promo code PACKETPUSHERS at checkout.

    Sponsor: Dell Technologies

    If you’re interested in an enterprise-ready, open source NOS for your data center, Dell Technologies’ Enterprise SONiC Distribution is open source networking made real. It brings together the innovation and scalability of open source SONiC with the trusted enterprise expertise of Dell Technologies with its family of open networking PowerSwitch platforms, enterprise-ready features, and global support. Visit packetpushers.net/dellsonic for more details.

    Show Links:

    Day Two Cloud Podcast

    Cloud Networking With Terraform – YouTube

    Ansible For Network Automation Course – Packet Pushers Ignition

    Network to Code Slack Sign Up

    Ned Bellavance on Twitter – @Ned1313

    Josh VanDeraa on Twitter – @vanderaaj

    • 1 hr 4 min
    Arrcus Reimagines The Chassis Router With Its Virtualized Distributed Router (Sponsored)

    Arrcus Reimagines The Chassis Router With Its Virtualized Distributed Router (Sponsored)

    Today’s Heavy Networking podcast, sponsored by Arrcus Networks, explores Arrcus’s recently launched Virtualized Distributed Router (VDR). It’s clear that building Ethernet networks with 1RU switches is a cost-effective and open design, particulary when compared with expensive and complicated chassis hardware.

    But the question becomes, how do we scale? The use of ECMP network architectures is identical to the chassis architecture internally. If we treat each switch as a line card and synchronize the operational state among switches, we can treat an ECMP network as a single logical entity.

    Enter Arrcus’s Virtualized Distributed Router (VDR):

    Arrcus’s VDR is software that runs on your preferred whitebox platform, with support for a variety of ASICs. The control plane unifies an ECMP fabric to turn thousands of ports into a single logical unit. It’s the chassis to use when you don’t want a chassis.

    In today’s show, we dive into details about VDR with Arrcus guests Keyur Patel, CTO; Murali Gandluru, VP, Product Management and Marketing;  and Nalin Pai, Technical Staff.

    We discuss:

    * The need for a virtualized distributed router and how it works

    * Scaling the data center with VDR

    * What day-to-day operations look like

    * Available whitebox and ASIC support

    * More

    Show Links:


    Arrcus Virtualized Distributed Router (VDR)

    Arrcus on Twitter: @arrcusinc

    Blogs by Keyur Patel – Arrcus

    Heavy Networking 531: Hyperscale Multi-Cloud Networking With Arrcus (Sponsored) – Packet Pushers

    • 49 min
    The 'What's On Your Mind?' Roundtable

    The 'What's On Your Mind?' Roundtable

    Today’s Heavy Networking is a roundtable show. We’ve invited a bunch of engineers to rock up to the mic to tell us what’s on their minds.

    Topics include why EVPN/VXLAN is useful even for small data centers, how to get automation going when internal processes slow you down, the pros and cons of unique network designs, and tales of how working from home has affected projects, teams, and priorities.

    Our guests are Chris Cummings, Nash King, Oliver Elliott, Tobi Metz, and Justin Seabrook-Rocha.

    Sponsor: InterOptic

    Fortune 500 companies choose InterOptic to maximize IT savings and minimize the risk of network failures. InterOptic devices are 100% compatible with Cisco, Juniper, Extreme, Arista, and other switches, and we spend thousands of hours testing devices to insure they work seamlessly in your environment. As your network gets more complex, you want to work with the optics experts at InterOptic! Find out more at interoptic.com/packet-pushers.

    Sponsor: ThousandEyes

    How’s the Internet holding up during this age of the distributed workforce, and what does it mean for your business going forward? Inform your plans and strategy with insights from ThousandEyes in its latest Internet Performance Report: COVID-19 Impact Edition. Download it for free at thousandeyes.com/research/internet-performance.

    Show Links:

    Chris Cummings on Twitter

    Tobi Metz on Twitter

    Frequencyshifter.tech – Tobi’s blog

    Justin Seabrook-Rocha on Twitter

    Oliver Elliott on Twitter

    Nash King on Twitter

    Packet Pushers Slack Channel – Join us!

    • 1 hr 5 min

Customer Reviews

4.8 out of 5
305 Ratings

305 Ratings

Javolono ,

Amazing Deep Networking Podcast!

Came across packet pushers and I can’t stop! As a Network Engenieer myself I find the topics, the guest, the insights and deep dives phenomenal, informative, educational and very enjoyable. Thank you guys for putting a high quality podcast and all your efforts. Keep em coming!

rst subr ,

Great source of information

I’m a software engineer in the valley and I find your podcasts to be extremely useful in understanding larger picture. Thanks for freely sharing this with rest of the community.

InformationSidewalk ,

Valuable and Accessible Perspectives and Analysis

The unfortunate state of technology-related podcasts is that the dry delivery of the content is hard to stay engaged with and/or the hosts/guests aren’t relatable or aware of their audience. Fortunately for everyone, the guys at Packet Pushers have brilliantly created a mix of technology, business, industry analysis, and the daily realities of engineers and architects delivered to the listener with wit, humor, and an unpretentious voice that is accessible for the newest help desk technician, the veteran tech CEO/CIO/CTO, and everyone in between.

I’ve pointed a number of professionals at the Packet Pushers collection of podcasts and every one of them has become a regular listener and found the information professionally useful in their day-to-day careers.

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