Hi Stackers, I want to request the inclusion of the support for Neutron Routed Networks in the Nova goals for the Ussuri cycle. As many of you might know, Routed networks is a feature in Neutron that enables the creation of very large virtual networks that avoids the performance penalties of large L2 broadcast domains ( https://www.openstack.org/videos/summits/barcelona-2016/scaling-up-openstack-networking-with-routed-networks). This functionality can be very helpful for large deployers who have the need to have one or a few large virtual networks shared by all their users and has been available in Neutron since very soon after the Barcelona Summit in 2016. But it is really useless until there is code in Nova that can schedule VMs to compute hosts based on the segments topology of the routed networks. Without it, VMs can land in compute hosts where their traffic cannot be routed by the underlying network infrastructure. I would like the Nova team to consider the following when making a decision about this request: 1. Work for Routed Networks was approved as a priority for the Ocata cycle, although it wasn't concluded: https://specs.openstack.org/openstack/nova-specs/priorities/ocata-priorities.html#network-aware-scheduling and https://specs.openstack.org/openstack/nova-specs/specs/pike/index.html 2. The are several large deployers that need this feature. Verizon Media, my employer, is one of them. Others that come to mind include GoDaddy and Cern. And I am sure there are others. 3. There is a WIP patch to implement the functionality some of the functionality: https://review.opendev.org/#/c/656885. We, at Verizon Media, are proposing to take over this work and finish its implementation by the end of U. What we are requesting is Nova core reviewers bandwidth to help us merge the code I will be attending the PTG in Shanghai and will make myself available to discuss this further in person any day and any time. Hopefully, we can get this feature lined up very soon Best regards Miguel -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-discuss/attachments/20191007/b2fb4f3a/attachment.html>