The executive team at the new company is primarily comprised of existing T-Mobile US leaders. Of...
The vendor has a twofold strategy to address multiple orchestration and enterprise challenges in...
Where is the networking industry with Intent-Based Networking (IBN)? On today's Heavy Networking we talk about efforts to come to some agreement on just what constitutes IBN, dive into graph databases, and examine proposed IETF definitions of the technology. Our guests are Jeff Tantsura, head of networking strategy at Apstra and IETF chair; and Phil Gervasi, a solutions architect.
The post Heavy Networking 506: Where Is The Industry Headed With Intent-Based Networking? appeared first on Packet Pushers.
At first, VMware’s embrace of Kubernetes – several times in several different ways over several years – has a whiff of desperation about it. …
VMware And Kubernetes: More Than Just A Defensive Play was written by Mitch Wagner at The Next Platform.
With at least 70 SD-WAN vendors on the market, standing out from the pack can be tricky. In an...
In November 2019 I wrote an article on using kustomize with Cluster API (CAPI) manifests. The idea was to use kustomize to simplify the management of CAPI manifests for clusters that are generally similar but have minor differences (like the AWS region in which they are running, or the number of Machines in a MachineDeployment). In this post, I’d like to show a slightly different way of using kustomize with Cluster API that involves configuring the kustomize transformers.
If you aren’t familiar with kustomize, I’d recommend having a look at the kustomize web site and/or reading my introductory post. A transformer in kustomize is the part that is responsible for modifying a resource, or gathering information about a resource over the course of a kustomize build process. This page has some useful terminology definitions.
Looking back at the earlier article on using kustomize with CAPI, you can see that—due to the links/references between objects—modifying the name of the AWSCluster object also means modifying the reference to the AWSCluster object from the Cluster object. The same goes for the KubeadmConfigTemplate and AWSMachineTemplate objects referenced from a MachineDeployment. Out of the box, the namePrefix transformer will change the names of these Continue reading
The operator was the most detailed among the nation’s largest telecom providers in how they are...
While other tech companies have blamed COVID-19 for recent revenue declines, citing supply chain...
The last few weeks have seen unprecedented changes in how people live and work around the world. Over time more and more companies have given their employees the right to work from home, restricted business travel and, in some cases, outright sent their entire workforce home. In some countries, quarantines are in place keeping people restricted to their homes.
These changes in daily life are showing up as changes in patterns of Internet use around the world. In this blog post I take a look at changing patterns in northern Italy, South Korea and the Seattle area of Washington state.
To understand how Internet use is changing, it’s first helpful to start with what a normal pattern looks like. Here’s a chart of traffic from our Dallas point of presence in the middle of January 2020.
This is a pretty typical pattern. If you look carefully you can see that Internet use is down a little at the weekend and that Internet usage is diurnal: Internet use drops down during the night and then picks up again in the morning. The peaks occur at around 2100 local time and the troughs in the dead of night at around 0300. Continue reading
The top 10,000 most spoken words in English represented by a point in hundreds of dimensions where the distance and direction between points encodes the relationship between words. (roadmaps)
Do you like this sort of Stuff? Without your support on Patreon this kind of Stuff can't happen. You are that important to the fate of the intelligent world.
Know someone who wants to understand the cloud? I wrote Explain the Cloud Like I'm 10 just for them. On Amazon it has 100 (!!!) mostly 5 star reviews. Here's a recent authentic unfaked review:
Don't miss all that the Internet has to say on Scalability, click below and become eventually consistent with all scalability knowledge (which means this post has many more items to read so please keep on reading)...
The COVID-19 outbreak has upended our world, but know that we here at SDxCentral will remain...
Are you looking for a break from the general news? Our content round-ups are a great source for all the recent blogs (and more!) that we’ve shared. From podcasts, to product updates, to industry thought leadership and even customer examples of how they’re implementing open networking technology— we’ve got it all here for you.
Dive into the content below and update yourself on what’s been happening. It may just be that needed break from the rest of the news that you were looking for.
From Cumulus Networks:
VXLAN/EVPN vs VRF Lite: In this blog Rama Darbha, Senior Consulting Engineer at Cumulus Networks, talks through the difference between VXLAN with EVPN and VRFLite and offers up his conclusion as to which solution is better.
Kernel of Truth season 3 episode 1: FRRouting update: Season three jumps right into the deep end of the pool with a discussion on FRRouting. Listen as hosts Brian O’Sullivan & Roopa Prabhu chat about what’s new with the FRR community with a new guest to the podcast, FRR expert Donald Sharp.
Topology matters: how port-per-workload management strategies no longer hold up: A new way of looking at switching—as a logical, rather Continue reading
SDxCentral Weekly Wrap for March 13, 2020: The Sweden-based vendor cited Viptela's remote...
As the status of COVID-19 continues to impact people and businesses around the world, Cloudflare is committed to providing awareness and transparency to our customers, employees, and partners about how we are responding. We do not anticipate any significant disruptions in Cloudflare services.
Our Business Continuity Team is monitoring the situation closely and all company personnel are kept up to date via multiple internal communication channels including a live chat room. Customers and the public are encouraged to visit this blog post for the latest information.
You can check the status of our network at www.cloudflarestatus.com. For COVID-19-related questions that aren’t answered below, please contact our Customer Support Team.
Yes, Cloudflare’s Business Continuity Team is a cross-functional, geographically diverse group dedicated to navigating through a health crisis like COVID-19 as well as a variety of other scenarios that may impact employee safety and business continuity.
In addition to Cloudflare’s existing Disaster Recovery Plan we have implemented the following strategies:
This story is about the importance of remembering networking fundamentals when dealing with advanced routing topics.
Seamless MPLS is a really neat design for large ISP networks. The idea is to overcome the scalability limitations of …
After decades of riding the Moore’s law curve the networking bandwidth should be (almost) infinite and (almost) free, right? WRONG, as I explained in the Bandwidth Is (Not) Infinite and Free video (part of How Networks Really Work webinar).
There are still pockets of Internet desert where mobile- or residential users have to deal with traffic caps, and if you decide to move your applications into any public cloud you better check how much bandwidth those applications consume or you’ll be the next victim of the Great Bandwidth Swindle. For more details, watch the video.
After decades of riding the Moore’s law curve the networking bandwidth should be (almost) infinite and (almost) free, right? WRONG, as I explained in the Bandwidth Is (Not) Infinite and Free video (part of How Networks Really Work webinar).
There are still pockets of Internet desert where mobile- or residential users have to deal with traffic caps, and if you decide to move your applications into any public cloud you better check how much bandwidth those applications consume or you’ll be the next victim of the Great Bandwidth Swindle. For more details, watch the video.
Rex: preventing bugs and misconfiguration in large services using correlated change analysis, Mehta et al., NSDI’20
and
Check before you change: preventing correlated failures in service updates, Zhai et al., NSDI’20
Today’s post is a double header. I’ve chosen two papers from NSDI’20 that are both about correlation. Rex is a tool widely deployed across Microsoft that checks for correlations you don’t have but probably should have: it looks at files changed in commits and warns developers if files frequently changed with them have not been changed. CloudCanary on the other hand is about detecting correlations you do have, but probably don’t want: it looks for potential causes of correlated failures across a system, and can make targeted recommendations for improving your system reliability.
"If you change the foo setting, don’t forget that you also need to update all the clients…"
Large-scale services run on a foundation of very large codebases and configuration repositories. To run uninterrupted a service not only depends on correct code, but also on correct network and security configuration, and suitable deployment specification. This causes various dependencies both within and across components/sources of the service which emerge Continue reading