Complexities were abundant and corralling vendors for a virtualized, cloud-native, open radio...
An aspiration of modern web scale networking is to leverage a pure L3 solution and integrate it with anycast addresses to allow for load balancing functionality. So why is this design aspirational? Well it requires discipline in the way that applications are architected— specifically around tenancy requirements and application redundancy. In this blog I’ll discuss a recent augmentation that was introduced into Cumulus Linux 4.1 that makes this style of design much more flexible in web scale networks.
Two common challenges when using anycast addressing in layer 3 only solutions are:
The first solution was implemented back in the early version of Cumulus Linux and is well documented. This solution is also known as “RASH” as the colloquial term.
The second solution addresses an interesting artifact of the way Layer 3 routes are advertised and learned, specifically with regards to next hop selection. Let us imagine the following simplified design:
The IP address of 192.168.1.101 is an anycast address that is being advertised by 3 different hosts in our environment. These three hosts are all serving the exact Continue reading
Together with Mellanox, Nvidia says Cumulus’ open networking platform will help accelerate the...
Docker Desktop WSL 2 backend has now been available for a few months for Windows 10 insider users and Microsoft just released WSL 2 on the Release Preview channel (which means GA is very close). We and our early users have accumulated some experience working with it and are excited to share a few best practices to implement in your Linux container projects!
Docker Desktop with the WSL 2 backend can be used as before from a Windows terminal. We focused on compatibility to keep you happy with your current development workflow.
But to get the most out of Windows 10 2004 we have some recommendations for you.
The first and most important best practice we want to share, is to fully embrace WSL 2. Your project files should be stored within your WSL 2 distro of choice, you should run the docker CLI from this distro, and you should avoid accessing files stored on the Windows host as much as possible.
For backward compatibility reasons, we kept the possibility to interact with Docker from the Windows CLI, but it is not the preferred option anymore.
Running docker CLI from WSL will bring you…
This is the second part of my interview with Alex DeBrie on his new insta-classic: The DynamoDB Book.
To read the first part of the interview please mosey on over to The DynamoDB Book: An Interview With Alex DeBrie On His New Book. Go ahead. Take your time. It's worth it.
Today’s 5G networks are effectively piggybacking on 4G LTE, but T-Mobile and others soon plan to...
Here is the third post of the series on basic network troubleshooting and tools under RHEL / CentOS. In this post, I will talk about the netstat and ss commands. Others posts of the series This post is part of a series about basic Linux Networking tips and tricks. The others posts of this series are: The ip and nmcli commands The mtr command The ss and netstat commands The curl command netstat The netstat command is a network utility used to display network connections, protocol or interfaces…
The post Basic Linux Networking tips and tricks part-3: ss and netstat commands appeared first on AboutNetworks.net.
The latest Network Break podcast examines NVIDIA's just-completed Mellanox acquisition, beta testing dates from SpaceX, the latest version of Cumulus Networks' NetQ management software, plus quarterly financial news for Juniper, Microsoft, and Amazon
The post Network Break 282: NVIDIA Completes Mellanox Acquisition; SpaceX Sets Date For Satellite Internet Beta Testing appeared first on Packet Pushers.
In this episode Job Snijders shares some of his perspective on the current state of the Internet.
As you can expect when talking to Job, one of the topics is BGP Routing Security. We also touch on his work in IETF, OpenBSD, transit vs peering and IPv4 address exhaustion.
Listen below or subscribe in your favourite podcast player on the home screen!
Starting today, Cloudflare Access can now be used in the Cloudflare for Teams dashboard. You can manage security policies for your people and devices in the same place that you build zero-trust rules to protect your applications and resources. Everything is now in one place in a single dashboard.
We are excited to launch a new UI that can be used across the entire Teams platform, but we didn’t build this dashboard just for the sake of a new look-and-feel. While migrating the Access dashboard, we focused on solving one of the largest sources of user confusion in the product.
This post breaks down why the original UI caused some headaches, how we think about objects in Cloudflare for Teams, and how we set out to fix the way we display that to our users.
Cloudflare Access is one-half of Cloudflare for Teams, a security platform that runs on Cloudflare’s network. Teams protects users, devices and data without compromising experience or performance. We built Cloudflare Access to solve our own headaches with private networks as we grew from a team concentrated in a single office to a globally distributed organization.
Cloudflare Access replaces corporate VPNs with Cloudflare’s Continue reading
Last week, when we talked to Nvidia co-founder and chief executive officer, Jensen Huang, about how the datacenter was becoming the unit of compute and in such a world networking was critical, it was obvious that acquiring Mellanox Technologies for $6.9 …
Hot On The Heels Of Mellanox, Nvidia Snaps Up Cumulus Networks was written by Timothy Prickett Morgan at The Next Platform.
Cisco’s latest security report, based on a survey of almost 500 SMBs, aims to debunk myths about...
Ansible Content Collections are a new way of distributing content, including modules, for Ansible. For detailed information on how to use collections in general, please read Colin McNaughton’s blog post about the topic.
The AWX Collection allows Ansible Playbooks to interact with AWX and Ansible Tower. Much like interacting with AWX or Red Hat Ansible Tower via the web-based UI or the API, the modules provided by the AWX Collection are another way to create, update or delete objects as well as perform tasks such as run jobs, configure Ansible Tower and more. This article will discuss new updates regarding this collection, as well as an example playbook and details on how to run it successfully.
The AWX Collection awx.awx is the upstream community distribution available on Ansible Galaxy. The downstream supported Ansible Collection ansible.tower is being targeted for mid-May on Automation Hub alongside the release of Ansible Tower 3.7. For more details on the difference between Ansible Galaxy and Automation Hub please refer to Ajay Chenampara’s blog post.
This collection is a replacement for the Ansible Tower web modules which were previously housed and maintained directly in the Ansible repo. The modules were Continue reading
Yesterday I posted a tweet on company culture that received a lot of positive feedback:
People thought this should be saved in a blog post, so this is it.
Do you want to attract and retain talent and high performers? Of course you do. Do you understand how to do that and are you willing to change your company culture?
Everything starts with culture. You may have heard the quote “Culture eats strategy for breakfast”, meaning that even the best stratety can’t compete with a company that has a great culture. Strategy without culture does not create success.
Most companies, such as the web scalers, often confuse gimmicks with culture. We have great company culture! We have ping pong tables, flipper games and even artists who play music for us! While these things can be entertaining, don’t mistake them for culture. Continue reading
Searching for a signal: CNN has a story about a teacher in rural Virginia who drives 20 minutes to find a good WiFi signal in order to work. The middle school history teacher is one of about 18 million U.S. residents who lack access to high-speed broadband, according to the Federal Communications Commission. The teacher “lives in a valley between two mountains, where the only available home internet option is a satellite connection. Her emails can take 30 seconds to load, only to quit mid-message. She can’t even open files on Google Drive, let alone upload lesson modules or get on a Zoom call with colleagues.”
Demanding access: Meanwhile, in Oakland, California, hundreds of teachers and students are calling for free access to the Internet, demanding that the school district and mayor “take all necessary measures” to ensure that students have access, KTVU reports. “There is no equity in education for our most vulnerable students if all Oakland families do not have access to the internet,” said Keith Brown, president of the Oakland Education Association, said.
Legislating access: In the U.S. Congress, Senate Democrats are introducing a bill that would create a new $4 billion fund for schools Continue reading
Got mentioned in this tweet a while ago:
Watching @ApstraInc youtube stream regarding BGP in the DC with @doyleassoc and @jtantsura.Maybe BGP is getting bigger and bigger traction from big enterprise data centers but I still see an IGP being used frequently. I am eager to have @ioshints opinion on that hot subject.
Maybe I’ve missed some breaking news, but assuming I haven’t my opinion on that subject hasn’t changed.
AT&T selected Stankey as its new CEO; Google to slow hiring; Cisco vowed no job cuts; plus the...