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Category Archives for "Networking"

The VMworld Aftermath: Continue Cutting Edge Learning with VMware’s Solution Spotlight 2021 Webcast Series

If you attended VMworld 2021 and you’re already itching for more learning, we have just the thing for you. Join our new upcoming VMware Solution Spotlight 2021 webcast series. You will be able to extend your learning and get answers to your burning questions by taking a technical deep dive into the innovations that are driving the Virtual Cloud Network.  

The series experts will be hosting a live Q&A session and will be covering: 

The three-part Cloud Networking Thursday series will take place on November 11th, November 18th, and wrap up on December 2nd.  

Check out a brief synopsis of each session to see the right fit for you: 

Learn How Your Enterprise Gets the Edge with SASE (11/11): 

Arista Partnering with Google Cloud to Deliver Hybrid Cloud and Multi-Cloud Connectivity

Arista has a long history of joint development with hyper-scale cloud providers delivering innovative solutions for a broad range of customers.  Our integration with Google Cloud and Network Connectivity Center is a testament to that ongoing innovation and abstracting complex networking challenges making them simple and agile for IT clients worldwide.

Cloudflare recognized as a ‘Leader’ in The Forrester New Wave for Edge Development Platforms

Cloudflare recognized as a 'Leader' in The Forrester New Wave for Edge Development Platforms
Cloudflare recognized as a 'Leader' in The Forrester New Wave for Edge Development Platforms

Forrester’s New Wave for Edge Development Platforms has just been announced. We’re thrilled that they have named Cloudflare a leader (you can download a complimentary copy of the report here).

Since the very beginning, Cloudflare has sought to help developers building on the web, and since the introduction of Workers in 2017, Cloudflare has enabled developers to deploy their applications to the edge itself.

According to the report by Forrester Vice President, Principal Analyst, Jeffrey Hammond, Cloudflare “offers strong compute, data services and web development capabilities. Alongside Workers, Workers KV adds edge data storage. Pages, Stream and Images provide higher level platform services for modern web workloads. Cloudflare has an intuitive developer experience, fast, global deployment of updated code, and minimal cold start times.”
Cloudflare recognized as a 'Leader' in The Forrester New Wave for Edge Development Platforms

Reimagining development for the modern web

Building on the web has come a long way. The idea that one might have to buy a physical machine in order to build a website seems incomprehensible now. The cloud has played a major role in making it easier for developers to get started. However, since the advent of the cloud, things have stalled — and innovation has become more incremental. That means that while developers Continue reading

Custom Headers for Cloudflare Pages

Custom Headers for Cloudflare Pages
Custom Headers for Cloudflare Pages

Until today, Cloudflare Workers has been a great solution to setting headers, but we wanted to create an even smoother developer experience. Today, we're excited to announce that Pages now natively supports custom headers on your projects! Simply create a _headers file in the build directory of your project and within it, define the rules you want to apply.

/developer-docs/*
  X-Hiring: Looking for a job? We're hiring engineers
(https://www.cloudflare.com/careers/jobs)

What can you set with custom headers?

Being able to set custom headers is useful for a variety of reasons — let’s explore some of your most popular use cases.

Search Engine Optimization (SEO)

When you create a Pages project, a pages.dev deployment is created for your project which enables you to get started immediately and easily preview changes as you iterate. However, we realize this poses an issue — publishing multiple copies of your website can harm your rankings in search engine results. One way to solve this is by disabling indexing on all pages.dev subdomains, but we see many using their pages.dev subdomain as their primary domain. With today’s announcement you can attach headers such as X-Robots-Tag to hint to Google and other search Continue reading

Graphcore beefs up data center AI offerings

Graphcore, the British semiconductor company that develops accelerators for AI and machine learning, has greatly increased the performance of its massively parallel Intelligence Processing Unit (IPU) servers.Graphcore sells its AI-oriented chips in rack-mounted designs called IPU-PODs. Up until now, the maximum per cabinet has been 64 units (in the IPU-POD64). The newest racks are twice and four times as large: the IPU-POD128 and IPU-POD256. Read more: 10 of the world's fastest supercomputersTo read this article in full, please click here

Graphcore beefs up data center AI offerings

Graphcore, the British semiconductor company that develops accelerators for AI and machine learning, has greatly increased the performance of its massively parallel Intelligence Processing Unit (IPU) servers.Graphcore sells its AI-oriented chips in rack-mounted designs called IPU-PODs. Up until now, the maximum per cabinet has been 64 units (in the IPU-POD64). The newest racks are twice and four times as large: the IPU-POD128 and IPU-POD256. Read more: 10 of the world's fastest supercomputersTo read this article in full, please click here

EVPN/VXLAN Complexity

We have school holidays this week, so I’m reposting wonderful comments that would otherwise be lost somewhere in the page margins. Today: Minh Ha on complexity of emulating layer-2 networks with VXLAN and EVPN.


Dmytro Shypovalov is a master networker who has a sophisticated grasp of some of the most advanced topics in networking. He doesn’t write often, but when he does, he writes exceptional content, both deep and broad. Have to say I agree with him 300% on “If an L2 network doesn’t scale, design a proper L3 network. But if people want to step on rakes, why discourage them.

EVPN/VXLAN Complexity

We have school holidays this week, so I’m reposting wonderful comments that would otherwise be lost somewhere in the page margins. Today: Minh Ha on complexity of emulating layer-2 networks with VXLAN and EVPN.


Dmytro Shypovalov is a master networker who has a sophisticated grasp of some of the most advanced topics in networking. He doesn’t write often, but when he does, he writes exceptional content, both deep and broad. Have to say I agree with him 300% on “If an L2 network doesn’t scale, design a proper L3 network. But if people want to step on rakes, why discourage them.

Why aren’t optical disks the top choice for archive storage?

Optical media is the longest lasting medium currently in production. It can reliably hold onto your data for 50-100 years without power or cooling, and without the worry of magnetic degradation. Using recordable optical media such as DVD-R is perfectly suitable for long-term archiving because it is write-once, read-many, meaning it is physically immutable—cannot be changed—so the data on it is tamper-proof.[Get regularly scheduled insights by signing up for Network World newsletters.] It seems, then, that optical media might dominate archived storage, but it doesn’t. To explore why, first let’s take a look at the technology.To read this article in full, please click here

Why aren’t optical disks the top choice for archive storage?

Optical media is the longest lasting medium currently in production. It can reliably hold onto your data for 50-100 years without power or cooling, and without the worry of magnetic degradation. Using recordable optical media such as DVD-R is perfectly suitable for long-term archiving because it is write-once, read-many, meaning it is physically immutable—cannot be changed—so the data on it is tamper-proof.[Get regularly scheduled insights by signing up for Network World newsletters.] It seems, then, that optical media might dominate archived storage, but it doesn’t. To explore why, first let’s take a look at the technology.To read this article in full, please click here

vmWare vRealize Automation (with embedded vRO) – Full Example of Custom Resources for Executing Ansible Playbooks from Blueprints

This articles exists because I spend a lot of time in the last year inside vmware vRealize Automation (vRA) that includes an embedded vRealize Orchestrator (vRO) on a undisclosed project. And the main take-away is that the documentation in certain aspects that are on the edge of new features of vRA/vRO are, to put it mildly “documented in a very chaotic way”. Additionally, what worked in vRA 8.0 – 8.2 suddenly stopped working in 8.3 and 8.4 when upgraded. So this product is not yet as stable as I would like and for this article it means that it will probably be completely outdated in a year or so. Nevertheless I wanted to put together a simple example that is working end-to-end and providing practical jump of point for building more.

And I have decided that bridging vRA/vRO with traditional Ansible playbook is a good idea for an example. Because it combines the vRAs great Infrastructure As A Code (IaaS) capabilities of using blueprints with a more infrastructure focused automation of Ansible. We will be building an abstract object on a blueprint (these types of objects are called “custom resource” because you are defining what they Continue reading

Cisco upgrades network and collaboration tools for hybrid work

The growing impact of hybrid work is resulting in a reassessment of the IT network infrastructure including the ability to glean analytic details from remote workers and ensure collaboration assets are working properly.Going forward, organizations should expect Cisco products that will help to further lock down networks and support application-monitoring and collaboration environments for hybrid workers, Todd Nightingale, the company’s executive vice president and general manager for enterprise networking cloud told Network World head of his keynote at this week’s Cisco WebexOne 2021 virtual conference.To read this article in full, please click here

How Gluware Democratizes Network Automation: Gluware LiveStream Video [7/8]

Terry Slattery, CCIE #1026 & Principal Architect at Netcraftsmen (a Gluware partner), describes their uses of Gluware at various customers with Greg Ferro of the Packet Pushers. If Gluware might be a fit for your network automation needs, visit here. Thanks! You can subscribe to the Packet Pushers’ YouTube channel for more videos as they […]

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