NSX-T Edge Transport Node Packet Capture
NSX-T v3.0.1 and v3.1.3 were used to try the stuff described below As always with network engineers, even when working with SDN/SSDC solutions, sooner or later you will be asked to troubleshoot connectivity across your hops. And if working with VMware NSX-T platform, your next-hop for the North-South Datacenter traffic will almost always be NSX-T EDGE Transport Node VM. It will be really useful then to be able to get some packet traces out of that box in order to troubleshoot the traffic issues in detail. One of the examples would be simple routing or some sort of Loadbalancing traffic
The post NSX-T Edge Transport Node Packet Capture appeared first on How Does Internet Work.
Increased interest in Spanish media after the La Palma volcanic eruption
The Internet is a valuable source of knowledge but also a deeply interesting, interconnected, and complex place. And with Cloudflare Radar (our Internet trends and insights free tool for everyone — including journalists, like I was for several years) you get a sense of different trends in the collection of networks that form the Internet.
We saw that over the past week or so in Spain. Radar shows a clear increase in interest in Spanish media outlets (in comparison with the preceding days and Sundays) after the news of the eruption in La Palma (one of the Spanish Canary Islands) broke on Sunday, September 19.
That is particularly clear looking at El País, one of the most well known media outlets in the country. Using our Global Popularity Ranking Trend available on Radar, we can see that ElPais.com jumped several positions in our ranking of most popular domains after September 19. That change is clear in the last seven days, but especially in the last 30, putting El País near the top 3,000 most popular domains in the world.
Elpais.com
A similar trend is Continue reading
Reusing Underlay Network for Infrastructure Services
Boris Lazarov sent me an excellent question:
Does it make sense and are there any inherent problems from design perspective to use the underlay not only for transport of overlay packets, but also for some services. For example: VMWare cluster, vMotion, VXLAN traffic, and some basic infrastructure services that are prerequisite for the rest (DNS).
Before answering it, let’s define some terminology which will inevitably lead us to the it’s tunnels all the way down endstate.
Reusing Underlay Network for Infrastructure Services
Boris Lazarov sent me an excellent question:
Does it make sense and are there any inherent problems from design perspective to use the underlay not only for transport of overlay packets, but also for some services. For example: VMWare cluster, vMotion, VXLAN traffic, and some basic infrastructure services that are prerequisite for the rest (DNS).
Before answering it, let’s define some terminology which will inevitably lead us to the it’s tunnels all the way down endstate.
Pulumi Getting Started
Pulumi is an infrastructure as code tool that helps you build and manage environments such as AWS, Azure and GCP with the programming languages you already know. In this post, I will show you how to get up and running with Pulumi. Software The following software was used in this...continue reading
How Cloudflare provides tools to help keep IPFS users safe
Cloudflare's journey with IPFS started in 2018 when we announced a public gateway for the distributed web. Since then, the number of infrastructure providers for the InterPlanetary FileSystem (IPFS) has grown and matured substantially. This is a huge benefit for users and application developers as they have the ability to choose their infrastructure providers.
Today, we’re excited to announce new secure filtering capabilities in IPFS. The Cloudflare IPFS module is a tool to protect users from threats like phishing and ransomware. We believe that other participants in the network should have the same ability. We are releasing that software as open source, for the benefit of the entire community.
Its code is available on github.com/cloudflare/go-ipfs. To understand how we built it and how to use it, read on.
A brief introduction on IPFS content retrieval
Before we get to understand how IPFS filtering works, we need to dive a little deeper into the operation of an IPFS node.
The InterPlanetary FileSystem (IPFS) is a peer-to-peer network for storing content on a distributed file system. It is composed of a set of computers called nodes that store and relay content using a common addressing system.
Nodes communicate with each other Continue reading
IAB Workshop on Measuring Network Quality for End Users
The telephone network had a single task: make human voice conversations work well. IP networks have a more challenging objective: make all kinds of digital transactions work well. From first player shooter games, though video streaming and web transactions through to human conversations. Make 'em all work well. This topic has become one of those long-standing sagas in IETF folklore, and another chapter of the evolving story was written at a recent IAB Workshop on Measuring Network Quality for End Users. Here's my impressions of this workshop.Day Two Cloud 117: How Akamai Helped Transform IBM Cloud Console’s Architecture (Sponsored)
Today on the Day Two Cloud podcast we have a sponsored show with Akamai and a customer, IBM Cloud. When IBM rebuilt its Cloud Console from a monolithic application to microservices, the company turned to Akamai to help improve application performance while also supporting routing, failover, and availability across six global data centers. We get details from Pavel Despot, Sr. Product Marketing Manager at Akamai; and Tony Erwin, Senior Technical Staff Member/Architect at IBM.
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Day Two Cloud 117: How Akamai Helped Transform IBM Cloud Console’s Architecture (Sponsored)
Today on the Day Two Cloud podcast we have a sponsored show with Akamai and a customer, IBM Cloud. When IBM rebuilt its Cloud Console from a monolithic application to microservices, the company turned to Akamai to help improve application performance while also supporting routing, failover, and availability across six global data centers. We get details from Pavel Despot, Sr. Product Marketing Manager at Akamai; and Tony Erwin, Senior Technical Staff Member/Architect at IBM.Packet Capture: What if Less Is More?
Smart packet capture (PCAP) gives analysts the ability to choose the packet evidence they collect and make it retrievable via SIEM.How Your Network Can Solve Your Digital Dilemma
In the drive to successful transformation, the underpinning computer network on which that change relies is taken for granted to just magically deliver what is needed. But that’s a strategic mistake, suggests Lars Rossen of Micro Focus, who wants the network treated as a product.Hedge 102: BGP Security with Geoff Huston
Our community has been talking about BGP security for over 20 years. While MANRS and the RPKI have made some headway in securing BGP, the process of deciding on a method to provide at least the information providers need to make more rational decisions about the validity of individual routes is still ongoing. Geoff Huston joins Alvaro, Russ, and Tom to discuss how we got here and whether we will learn from our mistakes.
Cloudflare for Offices
Cloudflare's network is one of the biggest, most connected, and fastest in the world. It extends to more than 250 cities. In those cities, we're often present in multiple data centers in order to connect to as many networks and bring our services as close to as many users as possible. We're always asking ourselves: how can we get closer to even more of the world's Internet users?
Today, we're taking a big step toward that goal.
Introducing Cloudflare for Offices. We are creating strategic partnerships that will enable us to extend Cloudflare's network into over 1,000 of the world's busiest office buildings and multi-dwelling units. These buildings span the globe, and are where millions of people work every day; now, they’re going to be microseconds away from our global network. Our first deployments will include 30 Hudson Yards, 4 Times Square, and 520 Madison in New York; Willis Tower in Chicago; John Hancock Tower in Boston; and the Embarcadero Center and Salesforce Tower in San Francisco.
And we're not done. We've built custom secure hardware and partnered with fiber providers to scale this model globally. It will bring a valuable new resource to the literal doorstep of Continue reading