Posts

I was fortunate enough to be given a chance to test the new virtual QFX 10k image from Juniper. In this post I will show how to import this image into UnetLab and demonstrate the basic L2 and L3 EVPN services

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In this post we’ll explore how DVR is implemented in OpenStack Neutron and what are some of its benefits and shortcomings

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In this post we’ll use Chef, unnumbered BGP and Cumulus VX to build a massively scalable ‘Lapukhov’ Leaf-Spine data centre

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In this post we will explore what’s required to perform a zero-touch deployment of an OpenStack cloud. We’ll get a 3-node lab up and running inside UNetLab with just a few commands

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One of the basic function of any data centre network is the ability to communicate with baremetal servers. In this post we’ll see how Neutron L2 Gateway plugin can be used to configure a Cumulus VX switch for VXLAN-VLAN bridging.

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In the this post we’ll tackle yet another Neutron scalability problem identified in my earlier post- a requirement to have a direct L2 adjacency between the external provider network and the network node

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In the previous post we’ve had a look at how native OpenStack SDN works and what are some of its limitations. In this post we’ll tackle the first one of them - overhead created by multicast source replication

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Now that we have our 3-node OpenStack lab [up and running][openstack-post-2] we can start exploring how virtual networks are implemented under the hood

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In the previous post I’ve demonstrated how to get a working instance of a single-node OpenStack inside UNetLab. In this post we’ll continue building on that by adding two new compute nodes and redesigning our network to resemble something you might actually see in a real life.

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In this post I’m going to show how to get a running instance of OpenStack inside a UNetLab virtual machine

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