![]() OVN is compatible with DPDK-based and hardware-accelerated gateways, and is already supported on switches from Brocade, Cumulus, Dell, HP, Lenovo, Arista, and Juniper. It shows improved performance and stability over existing OVS plugins without requiring any additional agents for deployment and debugging. OVN provides a production-grade straightforward design with high scalability to extend OVS capabilities to thousands of hypervisors. To make OVS more effective in various network environments, OVN was built to augment the low-level switching capabilities with a lightweight control plane that provides native support for common virtual networking abstractions. The most popular virtual switch in OpenStack, Open vSwitch (OVS) was developed to provide low-level networking components for server hypervisors. The first supported release was announced in September 2016. The OVN project was announced for the first time in January 2015, and had its first experimental release in February 2016. OVN gives admins the control over network resources by connecting groups of VMs or containers into private L2 and 元 networks, quickly, programmatically, and without the need to provision VLANs or other physical network resources. ![]() It provides an open approach to virtual networking capabilities for any type of workload on a virtualised platform (virtual machines and containers) using the same API. Just like OVS, OVN was designed to support highly scalable and production-grade implementations. ![]() ![]() It complements the existing capabilities of OVS and provides virtual network abstractions, such as virtual L2 and 元 overlays, security groups, and DHCP services. OVN, the Open Virtual Network, is an open source project that was originally developed by the Open vSwitch (OVS) team at Nicira. Let’s first take a closer look in order to understand what OVN is. OVN came to represent those network features in virtual switching environments and address their extensibility across multi-host clusters. Virtual switches nevertheless did initially miss very important networking features and standards, which hardware-based network devices already had – and which were proven and widely implemented. Concepts like virtual switching and routing became part of the data centre networking scene, with OVS as a pioneering example. With the development of open source software-defined networking solutions, virtualisation took a progressively more important place in modern data centres. Data centre networking : SDN fundamentals. ![]() This blog post is part of our data centre networking series: ![]()
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