Networking and Security in an Openstack Compute Node: a complex combination of iptables and (linux and OVS) bridging…

We had to investigate the operation of one of our Openstack compute nodes as it was exhibiting some unusual behaviour. We quickly determined that there was some unexpected packet loss and we had reason to believe that this could have been due to the packet processing in the node. Investigating this problem necessitated some deeper exploration […]


Getting Networking up and running in Openstack Cells – the Neutron way

In our previous blog post we described our experience enabling floating ips through modifications to nova python libraries in an Openstack Cells deployment using nova network. That solution was not robust enough and hence we had a go at installing neutron networking, although there is very little documentation specifically addressing Neutron and Cells. Neutron’s configuration […]