Recently native DHCP support has been added to OVN. In this post we will see how native DHCP is supported in OVN and how it is used by OpenStack Neutron OVN ML2 driver. The code which supports native DHCP can be found here and here. Please see this to understand the architecture of OVN and the services of the OVN…. Read more →
Devstack is the most commonly used project for OpenStack development. Wouldn’t it be cool to have a supporting software which analyzes the network infrastructure and helps us troubleshoot and monitor the SDN solution that Devstack is deploying? Skydive is an open source project aimed to help troubleshooting SDN systems by analyzing the data that it collects from the network infrastructure…. Read more →
SDN solutions are complex and troubleshooting/monitoring them is even harder. It seems that while we have a better way to automate the network we lose visibility and operability. For example, in order to troubleshoot an issue you have of to understand the network in general but also to have a deep understanding of how the SDN solution is implementing the… Read more →
In my previous post I explained how packets are forwarded from point to point within OpenContrail. We saw the tools available to check what are the routes involved in the forwarding. Last time we focused on the agent side but now we are going to understand on another key component: the controller.. The controller acts as a Route Reflector, announcing… Read more →
We know that all software components and services generate log files. These log files are vital in troubleshooting and debugging problems. If the log files are not managed properly then it can be extremely difficult to get a good look into them. Although system administrators cannot control the generation of logs, they can achieve some level of log management by… Read more →
In this post we will see how a packet generated by a VM is able to reach another VM or an external resource, what are the key concepts/components in the context of Neutron using the OpenContrail plugin. We will focus on OpenContrail, how it implements the overlay and the tools that it provides to check/troubleshoot how the packet are forwarded…. Read more →
OpenStack Havana Design started this morning, and eNovance team is here to attend it. First of all, I was not surprised by the huge number of newcomers at the Summit since the community has grown so fast. For the first time, eNovance has a booth to present what we are doing. Thanks to Raphael (CEO & Co-founder), we have great… Read more →