How Neutron works

It’s been a long time since I last posted in my blog. Anyway here is one describing the internals of Neutron with overlay network. You would be able to get most out of this post if you have a Openstack setup with neutron described in my previous post. There are a number of components which are used in Neutron to give you a software defined networking. OpenVSwitch Overlay Network using GRE or VXLAN tunneling Linux network namespaces Linux bridges Veth pair OpenVSwitch It’s a soft virtual switch which supports Openflow rules.…

Devstack multinode with neutron and vagrant

In this post I am going to share my experience of running neutron multinode with devstack. I am assuming that you are familiar with openstack, devstack and vagrant. If not I advise you to learn at least about openstack and come back here when you feel comfortable with different components of openstack. I created three vms to do the experiment. The most useful thing I learnt from this experiment is how external network in neutron works.…