article thumbnail

Wrapping libvirt Virtual Networks Around Open vSwitch Fake Bridges

Scott Lowe

In this article, I show you how to wrap a libvirt virtual network around your OVS fake bridge. You might ask, “Why wrap a libvirt virtual network around an OVS fake bridge when you can just use the OVS bridge directly?” Next, create an XML definition for a libvirt virtual network. Using VLANs with OVS and libvirt.

article thumbnail

Using KVM with Libvirt and macvtap Interfaces

Scott Lowe

In this post, I’m going to show you how to use KVM with Libvirt and macvtap interfaces for networking (as opposed to a Linux bridge or Open vSwitch ). Macvtap interfaces are related to macvlan interfaces (they share the same kernel driver), so you’ll want to first be sure your Linux kernel supports the macvlan driver.

.Net 60
Insiders

Sign Up for our Newsletter

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

article thumbnail

Using VLANs with OVS and libvirt

Scott Lowe

In previous posts, I’ve shown you how to use Open vSwitch (OVS) with VLANs through fake bridges , as well as how to wrap libvirt virtual network around OVS fake bridges. To make VLANs work with OVS and libvirt, two things are necessary: First, you must define a libvirt virtual network that contains the necessary portgroup definitions.

article thumbnail

How to modernize and accelerate mainframe application development

CIO Business Intelligence

This option may not include net-new investments but positions a business for failure against competitors. One of those technologies, Zowe, connects the gap between modern applications and the mainframe. Enterprises are at a crossroads for how to invest in their future infrastructure support and have a handful of options: Operate as-is.

article thumbnail

Rackspace’s CTO takes a broad view of sustainability

CIO Business Intelligence

In addition, he says, “We leverage serverless wherever possible in our public cloud environment, and for the applications that have not been modernized, we can do fine-tuning on virtual machines in our private cloud environment.” By choosing them, enterprises are almost adopting net zero by proxy,” Koushik says.

article thumbnail

Automatically Connecting LXC to Open vSwitch

Scott Lowe

I’ve previously discussed using Open vSwitch (OVS) with Linux Containers (LXC) in a couple of previous posts ( here and here ). with the Linux 3.8.0 The configuration section of the container’s configuration (“net” in this case). A Brief Introduction to Linux Containers with LXC.

Linux 74
article thumbnail

Compiling libvirt 0.10.1 on Ubuntu 12.04

Scott Lowe

I noted that the system had re-created the default bridge, so I got rid of that with these two commands: virsh net-destroy default virsh net-autostart --disable default. Visit the site for more information on virtualization, servers, storage, and other enterprise technologies. Linux Virtualization KVM Ubuntu'

.Net 109