The Week in Internet News: Biden Warns Putin About Some Cyberattacks
No-go zone: U.S. President Joe Biden told Russian President Vladimir Putin that some types of cyberattacks are off-limits during a meeting at the G7 summit in Switzerland recently, Reuters reports. Destructive attacks by Russian hackers on U.S. critical infrastructure must end, Biden said. It’s unclear if the talk will have much of an effect. Banned […]
The post The Week in Internet News: Biden Warns Putin About Some Cyberattacks appeared first on Internet Society.
Network Analysis 1. Setting up and Getting Started with Batfish in Multivendor Network with Cisco, Arista, and Cumulus.
Hello my friend,
The new year we start with a new topic, which is a configuration analysis of the multivendor networks. We have a passion both to create our own open source tools and to use existing, creating by other teams and project. Today we will start dive in one of such a tool.
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retrieval system, or transmitted in any form or by any
means, electronic, mechanical or photocopying, recording,
or otherwise, for commercial purposes without the
prior permission of the author.
Network analysis as part of automation?
In software development we have a concept called CI/CD (Continuous Integration/Continuous Delivery). In a nutshell, it’s a methodology, which incorporates mandatory testing of configuration (code, software version, etc) before bringing it to production. The main idea behind it is that automated testing and validation will make sure that code is stable and fit for purpose. Automated testing? That’s where the automation comes to the stage.
And automation is something what we are experts in. And you can benefit from that expertise as well.
In our network automation training we follow zero to hero approach, where we Continue reading
Comparing EVPN with Flood-and-Learn Fabrics
One of ipSpace.net subscribers sent me this question after watching the EVPN Technical Deep Dive webinar:
Do you have a writeup that compares and contrasts the hardware resource utilization when one uses flood-and-learn or BGP EVPN in a leaf-and-spine network?
I don’t… so let’s fix that omission. In this blog post we’ll focus on pure layer-2 forwarding (aka bridging), a follow-up blog post will describe the implications of adding EVPN IP functionality.
Worth Reading: Machine Learning Deserves Better Than This
This article is totally unrelated to networking, and describes how medical researchers misuse machine learning hype to publish two-column snake oil. Any correlation with AI/ML in networking is purely coincidental.
Worth Reading: Is Your Consultant a Parasite?
Stumbled upon a must-read article: Is Your Consultant a Parasite?
For an even more snarky take on the subject, enjoy the Ten basic rules for dealing with strategy consultants by Simon Wardley.
SSH Algorithm and Cipher Options
Have you ever tried to SSH to an network device and recieved the dreaded Unable to negotiate with <user> port 22: no matching key exchange method found. Their offer: <key-algorithm>. In this post ill cover how to work around this issue. Key Algorithms Specify the Key...continue reading
Observe & Troubleshoot Your Kubernetes Environments with Dynamic Service Graph
Kubernetes workloads are highly dynamic, ephemeral, and are deployed on a distributed and agile infrastructure. Application developers, DevOps teams, and site reliability engineers (SREs) often require better visibility of their different microservices, what their dependencies are, how they are interconnected, and which other clients and applications access them. This makes Kubernetes observability challenges unique. While Kubernetes helps to meet the needs of deploying and managing distributed applications, its observability challenges require a Kubernetes-native approach.
Traditional monitoring and observability solutions create data silos by collecting data at different levels (e.g. infrastructure, cluster, and application levels), or from a large number of ephemeral objects that generate data across a distributed environment. Traditional monitoring and observability solutions then stitch this data together to provide a near real-time snapshot view. This approach is not scalable given the high volume of granular data generated at each level, as well as Kubernetes’ distributed nature. It also starts to become expensive and budget unfriendly to run traditional monitoring solutions, as they require higher resource consumption (high-performance memory, more compute, and higher bandwidth).
In contrast, a Kubernetes-native observability solution can visualize all information with all relationship context intact and provide a high-fidelity view of the environment. This Continue reading
Heavy Networking 583: How Salesforce Evolved Its Branch Network With Prisma SD-WAN (Sponsored)
On today's Heavy Networking, sponsored by Palo Alto Networks, we hear from Salesforce about the evolution of its branch network to SD-WAN. Salesforce was able to trade MPLS for Internet broadband, get more bandwidth for less money, employ application-based steering and policy enforcement, and more. Our guests are Georgi Stoev, Sr. Network Architect at Salesforce; and Kumar Ramachandran, Senior Vice President at Palo Alto Networks.Heavy Networking 583: How Salesforce Evolved Its Branch Network With Prisma SD-WAN (Sponsored)
On today's Heavy Networking, sponsored by Palo Alto Networks, we hear from Salesforce about the evolution of its branch network to SD-WAN. Salesforce was able to trade MPLS for Internet broadband, get more bandwidth for less money, employ application-based steering and policy enforcement, and more. Our guests are Georgi Stoev, Sr. Network Architect at Salesforce; and Kumar Ramachandran, Senior Vice President at Palo Alto Networks.
The post Heavy Networking 583: How Salesforce Evolved Its Branch Network With Prisma SD-WAN (Sponsored) appeared first on Packet Pushers.
Don’t OutSMART Your Goals
I read a piece on LifeHacker yesterday that made me shake my head a bit. I’m sure the title SMART Goals Are Overrated was designed to get people to click on it, so from that perspective it succeeded. Wading into the discourse there was an outline of how SMART goals were originally designed for managers to give tasks to employees and how SMART doesn’t fit every goal you might want to set, especially personal aspirational ones. Since I have a lot of experience with using SMART goals both for myself and for others I wanted to give some perspective on why SMART may not be the best way to go for everything but you’re a fool if you don’t at least use it as a measuring tool.
SMRT, Eh?
As a recap, SMART is an acronym for the five key things you need to apply to your goal:
- S – Specific (what are you going to do)
- M – Measurable (how will you know when you’ve succeeded)
- A – Attainable or Assignable (can you or the person you’ve selected do this thing)
- R – Relevant or Relatable (is this goal appropriate for me or for the person doing it)
- T Continue reading
Observe & Troubleshoot Your Kubernetes Environments with Dynamic Service Graph
Kubernetes workloads are highly dynamic, ephemeral, and are deployed on a distributed and agile infrastructure. Application developers, DevOps teams, and site reliability engineers (SREs) often require better visibility of their different microservices, what their dependencies are, how they are interconnected, and which other clients and applications access them. This makes Kubernetes observability challenges unique. While Kubernetes helps to meet the needs of deploying and managing distributed applications, its observability challenges require a Kubernetes-native approach.
Traditional monitoring and observability solutions create data silos by collecting data at different levels (e.g. infrastructure, cluster, and application levels), or from a large number of ephemeral objects that generate data across a distributed environment. Traditional monitoring and observability solutions then stitch this data together to provide a near real-time snapshot view. This approach is not scalable given the high volume of granular data generated at each level, as well as Kubernetes’ distributed nature. It also starts to become expensive and budget unfriendly to run traditional monitoring solutions, as they require higher resource consumption (high-performance memory, more compute, and higher bandwidth).
In contrast, a Kubernetes-native observability solution can visualize all information with all relationship context intact and provide a high-fidelity view of the environment. This Continue reading
Modern Network Automation is Missing from Modern IT
Delivering automation throughout the IT stack helps alleviate organizational strains, making it possible to manage change at scale both on-premises and in the cloud while ensuring the performance and functionality.Cloudflare TV: Doing it Live, 1,000 Times and Counting
Last week, Cloudflare TV celebrated its first anniversary the only way it knows how: with a broadcast brimming with live programming spanning everything from the keynotes of Cloudflare Connect, to a day-long virtual career fair, to our flagship game show Silicon Valley Squares.
When our co-founder and CEO Matthew Prince introduced Cloudflare TV to the world last year, he described it as a platform for experimentation. By empowering Cloudflare employees to try whatever they could think up on air — bound only by restraints of common sense — we hoped to unlock aspects of our team’s talent and creativity that otherwise might go untapped in the midst of the pandemic.
The results, as they say, have been extraordinary.
Since launching in June 2020, Cloudflare TV has featured over 1,000 original live episodes covering an incredible array of topics: technical deep dives and tutorials like Hardware at Cloudflare, Leveling up Web Performance with HTTP/3, and Hacker Time. Security expertise from top CISOs and compliance experts. In-depth policy discussions. And of course, updates on Cloudflare’s products with weekly episodes of Latest from Product and Engineering, Estas Semanas en Cloudflare en Español, and launch-day introductions to Magic WAN Continue reading
Member News: Somalia Chapter Focuses on Internet Education
Paying by phone: The Somalia chapter of the Internet Society is focusing on educating Internet users, particularly young people, about mobile payments. The chapter is working with technology stakeholders to improve digital literacy. The chapter notes that 70 percent of adults in Somalia use mobile money services regularly, and more than two thirds of payments […]
The post Member News: Somalia Chapter Focuses on Internet Education appeared first on Internet Society.
Video: Comparing Routing and Bridging
After covering the basics of transparent Ethernet bridging and IP routing, we’re finally ready to compare the two. Enjoy the ride ;)
The video is part of How Networks Really Work webinar and available with Free ipSpace.net Subscription.
IPv6 Buzz 078: IPv6 For Small And Medium-Sized Businesses
IPv6 isn't just for large enterprises. In today's IPv6 Buzz episode Ed, Scott, and Tom makes the case for small and medium-sized businesses embracing the protocol, and what they should consider for deployment and management.
The post IPv6 Buzz 078: IPv6 For Small And Medium-Sized Businesses appeared first on Packet Pushers.