Heavy Networking

By Packet PushersTechnology

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Heavy Networking episodes

February 08, 2019 Heavy Networking 429: Network Modeling And New Features In Forward Networks (Sponsored)
Forward Networks returns to talk more about network modeling and verification in today’s Heavy Networking podcast.
We discuss Forward Networks’ approach to network modeling, verification, and assurance; and examine how the software is being used in production networks.
We also explore new features and capabilities, including the ability to leverage Forward’s data model for other applications and management systems.
It also supports NSX-V to give network engineers more insight into how overlays and the underlay intersect, and lets engineers build queries and verification for both network layers.
Forward now also models AWS VPCs for hybrid cloud analysis.
Our guests are Peyman Kazemian, Co-Founder; and Chiara Regale, VP of Product Management.
Show Links:
Forward Networks/packetpushers
Forward Networks on Twitter
Forward Networks – YouTube
Show 374: Network Modeling & Verification With Forward Networks (Sponsored) – Packet Pushers
0 min
February 06, 2019 Heavy Networking 428: EDNS And DNS Flag Day – What You Need To Know
DNS Flag Day was February 1st, 2019. On this day, a number of major DNS software and service providers, including Google, Cisco, and Cloudflare, stopped supporting workarounds for DNS authoritative systems that didn’t support EDNS (Extentions to DNS).
EDNS, which was standardized in 1999 and updated in 2013, makes DNS more efficient and allows the creation of new functionality such as DDoS protection.
However, workarounds deployed to accommodate non-compliant systems added complexity and made the service harder to operate. By ending backwards-compatibility, service providers, Web giants, and organizations such as the Internet Systems Consortium hope to compel operators to upgrade and take full advantage of DNS’s capabilties.
On today’s Heavy Networking we discuss DNS Flag Day and its potential impacts on non-compliant systems, examine EDNS, and more. Our guest is Cathy Almond, Sr. Support Engineer and Team Lead at the Internet Systems Consortium.
Show Links:
DNS Flag Day – February 1, 2019 – Internet Systems Consortium
Tech Notes: DNS Flag Day – February 1, 2019 – EtherealMind
2019 | DNS flag day – DNS Flag Day.net
Knowledge Articles-DNS Flag Day – will it affect you? – Internet Systems Consortium
Knowledge Articles-DNS Flag Day – Notes for Authoritative Zone Owners and DNS Hosting Companies – Internet Systems Consortium
28 min
February 01, 2019 Heavy Networking 427: Hype Vs. Reality On Hot Topics In Networking
Today’s Heavy Networking examines a bunch of hot topics in networking and IT to see what’s hype and what’s reality.
The tech industry is full of buzzwords and emerging technologies that attract media attention, spur speculation, and get engineering brains spun up. But is anyone actually using this stuff?
That’s what we aim to find out today. We’ll do our best to separate the sensational from the substantial on topics including:

* Software-defined X
* DevNetOps and Cloud Native
* Streaming telemetry
* Container networking and service meshes
* Microsegmentation
* Formal verification
* AI, blockchain for IT, and more

Joining us to share their own perspectives and what they’re hearing from customers are Avi Freedman, CEO and Co-founder of Kentik; and Jon Mendoza, Field CTO at Technologent.
1 hr 35 min
January 25, 2019 Heavy Networking 426: Building A BYOPC Gaming Network
Today’s Heavy Networking episode dives into gaming networks. Our guest is Tim Raphael. He volunteers for Red Flag LAN Fest(Rflan), a non-profit that runs Bring Your Own PC (BYOPC) gaming events.
Players show up with a computer, and Tim and his team provide the desk, chair, power and network. It’s like your college LAN parties of old, but way bigger.
The event has hosted up to 800 to 900 people at a single event.
Tim and Ethan discuss how Rflan builds networks for these events and why automation is essential to make it feasible.
They dive into details on the core network gear, what they monitor during games (capacity, link quality, uptime, service monitoring, and more) and how they troubleshoot.
In his day job, Tim is a peering engineer at the Internet Association of Australia.
Sponsor: ExtraHop
Today’s episode is brought to you in part by ExtraHop. ExtraHop is the enterprise cyber analytics company delivering performance and security from the inside out. Visit extrahop.com/packetpushers for an interactive demo to find out more.
Show Links:
Rflan.org
Tim Raphael on Twitter
Timraphael.com
1 hr 4 min
January 23, 2019 Heavy Networking 425: Advanced Zero Touch Provisioning For Cisco IOS-XR (Sponsored)
On today’s Heavy Networking we discuss some of the advanced features related to zero touch provisioning (ZTP) on IOS-XR in this Cisco-sponsored episode.
Why advanced? Because we hit ZTP fundamentals in episode 378.
In this episode we’ll review a few ZTP basics to refresh your memory, and then talk through tooling to help with golden image creation and model-driven ZTP automation.
We also dive into the unique challenge of using ZTP to stand up access networks with lots of devices, and review ZTP security mechanisms.
Our guest is Akshat Sharma, a Technical Marketing Engineer at Cisco and a returning Packet Pushers guest.
Show Links:
Working with Zero Touch Provisioning IOS XR Device Lifecycle – @xrdocs (Cisco)
Show 378: Cisco Zero Touch Provisioning (Sponsored) – Packet Pushers
Golden ISO build tool – GitHub
IOS-XR ZTP python library and samples – GitHub
IOS-XR ZTP Learning through Packet captures – @xrdocs (Cisco)
1 hr 1 min
January 18, 2019 Heavy Networking 424: Broadcast Media Using IP Networks Part 2
Today’s Heavy Networking continues a conversation we started back in Weekly Show 410, where we discussed the transition the broadcast industry is making to IP.
In that episode, we covered the technical legacy of the broadcasting industry, how IP is starting to be used, and the impact to network engineering as a whole.
Today, we consider the challenges IP networks face when implemented in a broadcasting environment, but why IP is moving ahead anyway.
Our guests are Ricki Cook, a solutions architect who specializes in broadcasting (and also edits Packet Pushers audio); and Cyrus Hira, Customer Success Manager at Densify who also has experience with broadcast networks (and also edits Packet Pushers audio).
We examine the particular challenges of transitioning broadcast networks to IP from their legacy transport mechanisms, key technical standards for broadcast media such as SMPTE ST2110, interoperability challenges, and more.
We also discuss real-world projects that Ricki and Cyrus have worked on.
Sponsor: ExtraHop
Today’s episode is brought to you in part by ExtraHop. Think analytics, folks. ExtraHop is the enterprise cyber analytics company delivering performance and security from the inside out. Visit extrahop.com/packetpushers for an interactive demo to find out more.
Show Links:
Weekly Show 410 – Broadcast Media Using IP Networks – Packet Pushers
Joint Task Force on Networked Media – Advanced Media Workflow Association (PDF)
IP Solutions: Innovation Around the World – The Andrews Hubs
RickiCook.com
1 hr 5 min
January 11, 2019 Heavy Networking 423: Introducing Heavy Networking
Welcome to the Packet Pushers Heavy Networking show. No, this isn’t a new show in our line-up. It’s the Weekly Show you’ve known since 2010, now with a new name.
Why the name change?
One reason is to reflect our growth. When Packet Pushers first launched, this was the only show we did. The podcast was published once a week, so voila–the Weekly Show.
Over the years, we’ve grown into a network of technical podcasts across multiple channels, so we thought it was time to freshen up the name on the podcast that started it all.
Second, it’s a reflection of how the industry has changed. Ten years ago, you could nestle into your technical silo and not worry too much about what was happening in other areas.
That’s not the case any more. IT engineers need to have knowledge in many disciplines. Our podcast network reflects that: shows like IPv6 Buzz, Datanauts, and Full Stack Journey delve into all kinds of IT infrastructure, and aim to help your professional development.
Of course, you still need deep expertise, so when you want to focus on networking technology, Heavy Networking is our main channel.
We’ve changed the name, but if you’re subscribed to the Weekly Show you don’t need to do anything. You’ll still get this show in your favorite podcatcher.
Not Just Navel-Gazing
Don’t worry, the whole show isn’t just about us. We also analyze some trends and issues we think will have an impact in 2019. They include:

* How SD-WAN will disrupt traditional telco business
* Whether a managed SD-WAN service makes sense
* What skills and expertise will be of value in 2019 and beyond
* How much should you be learning about the cloud
* Why deep networking knowledge still matters

1 hr 13 min
December 29, 2018 Weekly Show 422: Hardware Supply Chains And Trusted Execution
In October 2018, Bloomberg published an article making unsubstantiated claims about a supply chain breach in servers.
The story, which Bloomberg stands by but is widely regarded as wrong, draws attention to a significant issue: our technology infrastructure is undergirded by a global supply chain that could be compromised by malicious actors.
This got me thinking about hardware secure enclaves such as:

* Intel Trusted Execution Technology (Intel TXT )
* Intel Software Guard Extensions (Intel SGX)
* ARM Cryptoisland, which includes features for secure manufacturing, implemented as Cryptocell

Today’s show dives into issues around supply chain security and related technologies. My guests are Greg Shipley, Deputy Director at Cyber Reboot, an In-Q-Tel Lab; and Justin Wilder, Vice President at In-Q-Tel.
Our conversation aims to:

* Provide a high-level overview of TXT, SGX, etc., and why they matter
* Explore how the market has (attempted) to implement some of these approaches, what has worked, and what hasn’t
* Examine what trusted execution or similar measures look like in the routing and switching world
* Propose some ideas on how to move the whole thing forward

Sponsor: InterOptic
InterOptic offers high-performance, high-quality optics at a fraction of the cost. If you’re not doing optics correctly, you’re going to pay for it upfront (and then later too). Don’t be fooled by lesser optics. The difference between generic third-party and brand-equivalent optics matters. Go to InterOptic.com to learn more.
Sponsor: Cumulus Networks
By building innovative data center products with Linux, Cumulus offers unprecedented interoperability, agility and scale, and makes integrating your open source software with your proprietary software seamless and efficient. To learn more about Cumulus’ open source philosophy and contributions, head to cumulusnetworks.com/openpod.
Show Links:
Intel® Trusted Execution Technology (Intel® TXT) Overview – Intel
Intel® Software Guard Extensions (Intel® SGX) – Intel
Cryptoisland Family – ARM
Cyber Reboot
Cyber Reboot blog
Cyber Reboot on Twitter
1 hr 9 min
December 21, 2018 Weekly Show 421: Containing Breaches With Illumio’s Microsegmentation (Sponsored)
When it comes to data center security, gigantic middlebox firewalls can be problematic. You have issue with scale and workload placement, latency challenges, and the potential for pain when you need to upgrade.
A big firewall also isn’t the best tool to deal with east-west traffic inspection, and has limited utility for containing a breach.
Microsegmentation is a relatively new architecture that defines by host or subnet who can talk to whom about what. And it does it with a centralized policy and distributed firewalls. You get manageability, scale, and a reduced attack surface with microsegmentation.
On today’s Weekly Show we dive into microsegmentation with our sponsor, Illumio. We discuss how Illumio works, how it can limit the impact of a breach, and how to deploy and run a microsegmentation architecture at scale.
Our guest is Matt Glenn, VP of Product Management.
In this episode we cover:

* Illumio’s two core elements: the policy compute engine and the virtual enforcement node
* How Illumio builds a live application dependency map to create security policies
* How the platform leverages existing host controls such as IP tables to enforce security policies
* How the product works on premises and in public clouds
* Running Illumio in a brownfield environment
* How Illumio can help you clean up your CMDB

Show Links:
Illumio Adaptive Security Platform (ASP) Documentation Center
Illumio Blog
Illumio Presents At Network Field Day 19 – Tech Field Day
59 min
December 14, 2018 Weekly Show 420: Real-World Network Design Part 2

Today’s Weekly Show episode returns to the University of Idaho, where we continue the real-world network design session we started in Weekly Show 418.

Guests Brian Jemes, Network Manager; and Mike Rusca, Network Engineer are back. We’ve also invited Jake Snyder, a mobility solutions architect.

Today’s episode focuses on the university’s wireless architecture and design.

We discuss how wireless has gone from a best-effort, don’t-count-on-it medium to an absolute requirement for faculty, staff, and students. In fact, wireless accounts for approximately 80% of devices on campus.

The conversation touches on the role of 5Ghz and small cell sizes, PoE, how the next generation of APs will affect WLAN design and operations, and more.

Sponsor: InterOptic

InterOptic offers high-performance, high-quality optics at a fraction of the cost. If you’re not doing optics correctly, you’re going to pay for it upfront (and then later too). Don’t be fooled by lesser optics. The difference between generic third-party and brand-equivalent optics matters. Go to InterOptic.com to learn more.

Sponsor: Cumulus Networks

By building innovative data center products with Linux, Cumulus offers unprecedented interoperability, agility and scale, and makes integrating your open source software with your proprietary software seamless and efficient. To learn more about Cumulus’ open source philosophy and contributions, head to cumulusnetworks.com/openpod.
1 hr 26 min

About Heavy Networking

From the publisher's feed

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…