NB435: Your FUs, VMware takeover, DPU News and Cooling is Toxic
FU, vendors co-operating ? Google ditches something, Quantum computing, the state of AMD DPUs. Finally liquid cooling is toxic due to PFAS are 'forever chemicals'.
The post NB435: Your FUs, VMware takeover, DPU News and Cooling is Toxic appeared first on Packet Pushers.
Exercise: Fix BGP Route Leaks
I created a netlab topology you can use to practice BGP security tools I described in the Internet Routing Security webinar:
- The lab topology mirrors the sample topology I described in the Classification of BGP Route Leaks (RFC 7908) blog post with one router per autonomous system
- BGP is configured on all devices, and EBGP sessions are set up between all directly-connected devices.
Exercise: Fix BGP Route Leaks
I created a netlab topology you can use to practice BGP security tools I described in the Internet Routing Security webinar:
- The lab topology mirrors the sample topology I described in the Classification of BGP Route Leaks (RFC 7908) blog post with one router per autonomous system
- BGP is configured on all devices, and EBGP sessions are set up between all directly-connected devices.
Welcome to Speed Week 2023
What we consider ‘fast’ is changing. In just over a century we’ve cut the time taken to travel to the other side of the world from 28 days to 17 hours. We developed a vaccine for a virus causing a global pandemic in just one year - 10% of the typical time. AI has reduced the time taken to complete software development tasks by 55%. As a society, we are driven by metrics - and the need to beat what existed before.
At Cloudflare we don't focus on metrics of days gone by. We’re not aiming for “faster horses”. Instead we are driven by questions such as “What does it actually look like for users?”, “How is this actually speeding up the Internet?”, and “How does this make the customer faster?”.
This innovation week we are helping users measure what matters. We will cover a range of topics including how we are fastest at Zero Trust, have the fastest network and a deep dive on cache purge and why global purge latency mightn’t be the gold star it's made out to be. We’ll also cover why Time to First Byte is generally a bad measurement. And what Continue reading
Worth Reading: Some Blogging Myths
Julia Evans published another phenomenal blog post, this time focused on blogging myths including:
- You need to be original
- You need to be an expert
- Posts need to be 100% correct
- Writing boring posts is bad
- You need to explain every concept
- Page views matter
- More material is always better
Worth Reading: Some Blogging Myths
Julia Evans published another phenomenal blog post, this time focused on blogging myths including:
- You need to be original
- You need to be an expert
- Posts need to be 100% correct
- Writing boring posts is bad
- You need to explain every concept
- Page views matter
- More material is always better
Worth Reading: A Primer on Communication Fundamentals
Dip Singh published an excellent primer on communication fundamentals including:
- Waves: frequency, amplitude, wavelength, phase
- Composite signals, frequency domain and Fourier transform
- Bandwidth, fundamental and harmonic frequency
- Decibels in a nutshell
- Transmission impairments: attenuation, distortion, noise
- Principles of modern communications: Nyquist theorem, Shannon’s law, bit and baud rate
- Line encoding techniques, quadrature methods (including QPSK and QAM)
Even if you don’t care about layer-1 technologies you MUST read it to get at least a basic appreciation of why stuff you’re using to read this blog post works.
Worth Reading: A Primer on Communication Fundamentals
Dip Singh published an excellent primer on communication fundamentals including:
- Waves: frequency, amplitude, wavelength, phase
- Composite signals, frequency domain and Fourier transform
- Bandwidth, fundamental and harmonic frequency
- Decibels in a nutshell
- Transmission impairments: attenuation, distortion, noise
- Principles of modern communications: Nyquist theorem, Shannon’s law, bit and baud rate
- Line encoding techniques, quadrature methods (including QPSK and QAM)
Even if you don’t care about layer-1 technologies you MUST read it to get at least a basic appreciation of why stuff you’re using to read this blog post works.
Observations on Seven Years of Maintaining Open Source
June 27th marks the seventh anniversary of NetBox, a one-time hobby project which quickly took off and today largely consumes my life. What began as a proof-of-concept solution for the network engineering team at DigitalOcean is now perhaps the most widely deployed network source of truth in the world.
This feels like an opportune time to reflect on some lessons I've learned along the way, with the hope of offering mixed encouragement and caution to those considering a similar path. And as I've felt the urge to pick up blogging again, this post will also serve to share what I've been up to recently.
Most articles about open source in general are boring. Reading about licenses and software governance feels like a punishment. Keenly aware of this fact, I'll do my best to navigate around the theory and stick with observations that are of practical use to the aspiring open source maintainer.
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Heavy Networking 686: Juniper Cloud-Native Contrail Networking CN2 (Sponsored)
Today we’re going deep on software-defined networking for containers and OpenStack with sponsor Juniper Networks. Juniper has revamped its approach to secure networking for telcos and telco cloud-delivered services with Juniper’s Cloud-Native Contrail Networking or CN2 software. CN2 lets you automate the creation of network connections for containers and for virtual machines while also providing routing, security, segmentation and isolation of workloads. Our guest and guide into the guts of Cloud-Native Contrail Networking, hereafter referred to as CN2, is Nick Davey. Nick is Director of Product Management for SDN and Telco Cloud technologies.Heavy Networking 686: Juniper Cloud-Native Contrail Networking CN2 (Sponsored)
Today we’re going deep on software-defined networking for containers and OpenStack with sponsor Juniper Networks. Juniper has revamped its approach to secure networking for telcos and telco cloud-delivered services with Juniper’s Cloud-Native Contrail Networking or CN2 software. CN2 lets you automate the creation of network connections for containers and for virtual machines while also providing routing, security, segmentation and isolation of workloads. Our guest and guide into the guts of Cloud-Native Contrail Networking, hereafter referred to as CN2, is Nick Davey. Nick is Director of Product Management for SDN and Telco Cloud technologies.
The post Heavy Networking 686: Juniper Cloud-Native Contrail Networking CN2 (Sponsored) appeared first on Packet Pushers.
The Big Clouds Get First Dibs On AMD “Genoa” Chips
The expanded lineup of AMD’s 4th generation “Genoa” Epyc server chips – built atop “Zen 4” core and some with the chip maker’s L3-boosting 3D V-Cache – unveiled at a high-profile event in San Francisco this week is quickly making its way into the cloud. …
The Big Clouds Get First Dibs On AMD “Genoa” Chips was written by Jeffrey Burt at The Next Platform.
Hedge 182: The Decentralized Internet Infrastructure Research Group
The Internet has become very centralized in the last five to ten years, causing a lot of concern among among many in the Internet community. While we cannot turn back the clock, we can try to chart a path forward to reduce the tendency towards centralization. Join Dirk Dirk Kutscher, Lixia Zhang, Alvaro Retana, Tom Ammon, and Russ White on this episode of the Hedge as we discuss the work the Distributed Internet Research Group (DINRG) is doing to create a more decentralized Internet.