Scott Lowe

AUGUST 6, 2021

Here’s a quick look at using Envoy as a load balancer in Kubernetes. Having recently needed to dig into Open Policy Agent (OPA) , I took renewed interest in this slightly older article by Chip Zoller that compares OPA/Gatekeeper with Kyverno. Virtualization. Networking. John Arundel is excited about CUE.

Open Source 60

Open Source Load Balancer WAN Architecture 60

Spearline Testing

JANUARY 14, 2021

This prominent evolution has been spurred largely by three factors - firstly, the increased use of cloud services and personnel who are more experienced and comfortable operating in a virtual arena. Secondly, rapid advancements in the overall telecommunications space and finally, the rise of remote working has been a key driver for VoIP.

VOIP 147

VOIP Telecommunications Load Balancer Internet 147

Scott Lowe

OCTOBER 14, 2017

Christopher Davis has an article discussing a recommended VPC subnet configuration. This is, of course, just one way of handling subnets within a VPC, but some of the principles outlined in Christopher’s article are definitely sound. This article is pretty high-level; I wish it had a bit more depth to it. Networking.

Load Balancer 60

Load Balancer Vmware Hardware Open Source 60

Scott Lowe

JULY 13, 2018

It looks like there will be a follow-up to this article as well, so you may want to check back on Ajay’s site. Bernd Malmqvist talks about Avi Networks’ software-defined load balancing solution, including providing an overview of how to use Vagrant to test it yourself. Cloud Computing/Cloud Management.

Load Balancer 60

Load Balancer Virtualization Authentication Tools 60

Scott Lowe

FEBRUARY 16, 2017

Here’s another collection of links and articles from around the Internet discussing various data center-focused technologies. The Pivotal Engineering blog has an article that shows how to use BOSH with the vSphere CPI to automate adding servers to an NSX load balancing pool. Virtualization. Networking.

Vmware 60

Vmware Linux Storage Load Balancer 60

Scott Lowe

APRIL 3, 2013

The real problem is the configuration and management of network policy: stuff like QoS, VLANs, ACLs, NAT, VRFs, firewalls, load balancing, etc. This article was originally posted on blog.scottlowe.org. Visit the site for more information on virtualization, servers, storage, and other enterprise technologies.

Load Balancer 108

Load Balancer Network HP Virtualization 108

Scott Lowe

SEPTEMBER 27, 2019

As usual, I’ve collected some articles and links from around the Internet pertaining to various data center- and cloud-related topics. Although her article is written specifically for Azure, the underlying concept of being sure to tag resources appropriately is valuable for any cloud provider. Perhaps this article can help.

Load Balancer 60

Load Balancer Cloud Applications Vmware 60

Scott Lowe

AUGUST 17, 2018

Welcome to Technology Short Take 103, where I’m back yet again with a collection of links and articles from around the World Wide Web (Ha! If you’re not familiar with VPCs and associated AWS constructs, you should read this article. You may also find this related article (linked within Scott’s post) to be helpful.

Load Balancer 60

Load Balancer Storage Network Linux 60

Scott Lowe

JUNE 18, 2021

The first is a post on Cilium and F5 load balancer integration , while the second discusses implementing Kubernetes network policies with Cilium and Linkerd. Alessandro Perilli has a very lengthy article on NoOps. Virtualization. I enjoyed this article by Cat Swetel on the nature of power. Servers/Hardware.

Vmware 60

Vmware Hardware Load Balancer Apple 60

Scott Lowe

FEBRUARY 24, 2018

Nevertheless, I have persevered in order to deliver you this list of links and articles. VPCs, or Virtual Private Clouds, are Amazon’s software-defined networking mechanism for workloads running on AWS.). Viktor van den Berg writes on deploying NSX load balancers with vRA. Virtualization. Networking.

Vmware 60

Vmware Load Balancer Network Open Source 60

Scott Lowe

AUGUST 27, 2013

Carl also revisits the three “imperatives” that Pat shared yesterday: Extending virtualization to all of it. Carl brings out Kit Colbert, a principal engineer at VMware (and someone who relatively well-recognized within the virtualization community). This article was originally posted on blog.scottlowe.org.

Vmware 67

Vmware Load Balancer Storage Firewall 67

Scott Lowe

JUNE 21, 2019

Here’s a fresh new collection of links and articles from the around the web to propel myself back into blogging. These two articles are interesting (to me) because they combine both network automation and Kubernetes. David Holder walks through removing unused load balancer IP allocations in NSX-T when used with PKS.

Network 60

Network Load Balancer Storage Applications 60

Scott Lowe

SEPTEMBER 22, 2017

Vincent Bernat has a really in-depth article on IPv4 route lookup on Linux (and one on IPv6 route lookup as well). Ivan Pepelnjak has a great article that tries to get to the kernel of truth in the middle of the intent-based networking hype. Virtualization. Here’s hoping you find something useful! Networking. RIP Solaris.

Storage 60

Storage Vmware Load Balancer Network 60

Scott Lowe

NOVEMBER 9, 2018

Continuing on that Envoy theme, you may find this article by Matt Klein—one of the primary authors of Envoy—helpful in understanding some of the concepts behind modern load balancing and proxying. The title is a bit misleading; the article is really more about using different base images to optimize for size.

Load Balancer 60

Load Balancer Operating Systems Intel Hardware 60

Scott Lowe

OCTOBER 5, 2012

Welcome to Technology Short Take #25, my irregularly-published collection of links, articles, thoughts, and rants. Erik Smith, notably known for his outstanding posts on storage and FCoE, takes a stab at describing some of the differences between SDN and network virtualization in this post. Virtualization. my apologies for that.

Storage 92

Storage Vmware Linux Virtualization 92

Scott Lowe

APRIL 6, 2017

I have another collection of links, articles, and thoughts about key data center technologies, and hopefully I’ve managed to include something here that will prove useful or thought-provoking. For those that may be new to Terraform, Cody Bunch has a great article that describes a simple use case of Terraform with vSphere. Networking.

Vmware 60

Vmware Linux Storage Network 60

Scott Lowe

SEPTEMBER 12, 2012

Johnson shows a great diagram that reviews all the various types of VM-to-VM communications that can exist in modern data centers: VM-to-VM (on the same host) via the software-based virtual switch (could be speeds of 30 to 40 Gbps in this use case). Intel VT-c actually provides a couple of different ways to work in virtualized environments.

Intel 109

Intel Virtualization Data Center Network 109

Scott Lowe

NOVEMBER 16, 2015

Open Virtual Network (OVN) is really ramping up and getting lots of attention, which I personally think is absolutely well-deserved. Here’s an article on using PHP to query NSX API via REST (specifically, working with syslog settings on NSX Manager). A couple of articles jumped out at me while compiling this Technology Short Take post.

Vmware 60

Vmware Network Load Balancer Linux 60

Scott Lowe

JUNE 8, 2018

Kamal Kyrala discusses a method for accessing Kubernetes Services without Ingress, NodePort, or load balancers. See Chris Evans’ article here. (I’ll Virtualization. Here’s another one from David: running Juniper vQFX10K on ESXi 6.5. Personally, I’d love to see the KVM option explained.).

Load Balancer 60

Load Balancer Vmware Storage Intel 60

Linux Academy

MARCH 28, 2019

High speed low latency networks now allow us to add these nodes anywhere in a cloud infrastructure and configure them under existing load balancers. OpenStack is a proven Infrastructure as a Service solution that has the ability to scale virtual machines based on the metrics of existing nodes. Automated Kubernetes Deployments.

Open Source 60

Open Source Devops Linux Cloud 60

Scott Lowe

DECEMBER 17, 2015

Before I present this episode’s collection of links, articles, and thoughts on various data center technologies, allow me to first wish all of my readers a very merry and very festive holiday season. Mustafa Akin has an article on Docker’s new overlay networking functionality. Now, on to the content! Networking. This looks handy.

Vmware 60

Vmware Linux Architecture Hardware 60

Scott Lowe

DECEMBER 10, 2021

For now, though, I have a small collection of articles and links for your reading pleasure—not as many as I usually include in a Technology Short Take, but better than nothing at all (I hope!). Baptiste Collard has a post on Kubernetes controllers for AWS load balancers. Virtualization. Networking.

Load Balancer 94

Load Balancer Vmware Operating Systems Architecture 94

Data Center Knowledge

JULY 23, 2013

With a well-planned deployment, and a good infrastructure, companies can efficiently load-balance their IT environment between multiple active, cloud-based, sites. So, if one site should go down – users would transparently be balanced to the next nearest or most available data center. . Featured Cloud Articles.

Cloud 250

Cloud Disaster Recovery Data Center Backup 250

Data Center Knowledge

JULY 23, 2013

They manage dedicated firewalls for us, but as far as load balancers we use the cloud. I wasn’t sure cloud load balancing would be right, for example, but they showed us the numbers. Featured Cloud Articles. Featured Modular Articles. ARCHIVED ARTICLES. Virtualization. A Cooperative Process.

Cloud 189

Cloud Data Data Center Firewall 189

KineticData

FEBRUARY 13, 2024

This article delves into our path to operational excellence, achieved by strategically incorporating automation and DevOps practices. For example, for an application that runs in the JVM (Java Virtual Machine), we package the JVM into the container as well as the application.

Devops 59

Devops Strategy Applications Load Balancer 59

Scott Lowe

SEPTEMBER 12, 2013

The first concept that Recep discusses is network virtualization. He believes that network virtualization is primarily about decoupling network services from the underlying network infrastructure. The specific terminology involved is that the virtual switches become a VTEP, a virtual tunnel end-point.

Intel 61

Intel Load Balancer Architecture Virtualization 61

Scott Lowe

DECEMBER 6, 2012

Mirantis published an article discussing a framework they built for bare-metal provisioning with OpenStack that allows OpenStack to place workloads onto bare-metal nodes instead of onto a hypervisor. I don’t have anything for this area this time around, but I’ll stay alert for articles to add next time. Virtualization.

Vmware 109

Vmware Virtualization Storage Hardware 109

Scott Lowe

FEBRUARY 10, 2015

Welcome to Technology Short Take #48, another installation in my irregularly-published series that collects links, articles, and thoughts from around the web. Craig Matsumoto of SDxCentral recently published a piece on NFV performance ; that article was based largely on a blog post by Martin Taylor of Metaswitch found here. Networking.

Open Source 60

Open Source Vmware Network IBM 60

Scott Lowe

SEPTEMBER 11, 2014

Workloads are scheduled across these server/linecards using Valiant Load Balancing (VLB). Of course, there are issues with packet-level load balancing and flow-level load balancing, so tradeoffs must be made one way or another. This article was originally posted on blog.scottlowe.org.

Load Balancer 61

Load Balancer Intel Network Hardware 61

Data Center Knowledge

JULY 17, 2013

The term “Cloud Management” is nebulous, but typically refers to a distinct set of tasks related to managing the infrastructure level (IaaS) cloud layers, typically comprised of the physical and virtual infrastructure, as well as the cloud orchestration layer – whether inside a corporation or a Service Provider cloud. ARCHIVED ARTICLES.

Data Center 203

Data Center Cloud Data Applications 203

Fountainhead

OCTOBER 6, 2009

Insights into Data Center Infrastructure, Virtualization, and Cloud Computing. When a new server (physical or virtual) is created, much of this infrastructure also has to be provisioned to support it. That is, I/O is virtualized, networking is frequently converged (i.e. a Fabric), and network switches, load balancers, etc.

Load Balancer 100

Load Balancer Virtualization Data Center Network 100

Fountainhead

SEPTEMBER 10, 2009

Insights into Data Center Infrastructure, Virtualization, and Cloud Computing. Thats to say it includes I/O virtualization, a converged network fabric (including virtual switches and load balancing - based on std. Labels: Egenera , Infrastructure Orchestration , IT Ops , Unified Computing , Virtualization.

Dell 138

Dell Data Center Virtualization Cloud 138

Scott Lowe

OCTOBER 7, 2013

A virtual LAN , aka a VLAN , allows you to have this ability. Switches generally support a variety of load balancing mechanisms, including source-destination MAC addresses, source-destination IP addresses, and sometimes even layer 4 (TCP/UDP) source-destination ports. This article was originally posted on blog.scottlowe.org.

Network 61

Network Load Balancer Examples LAN 61

Scott Lowe

DECEMBER 16, 2013

Private cloud is a relatively new phenomenon, and for many has really meant advanced virtualization. Integration with existing IT infrastructure ­ businesses have significant investments in existing data center infrastructure: load balancers, IDS/IPS, SAN, database infrastructure, etc. All feedback is welcome!

Cloud 61

Cloud Open Source Load Balancer Engineering 61

Scott Lowe

AUGUST 20, 2014

” These containers do things like update an external load balancer, or register the presence of the “primary” container in some sort of service discovery mechanism. (In This article was originally posted on blog.scottlowe.org. Courteous comments are always welcome. CoreOS Continued: Fleet and Docker.

Linux 61

Linux System Load Balancer Examples 61