How to check Open vSwitch version

Open vSwitch (OVS) is an open-source virtual switch, featuring programmable switch forwarding capability. The forwarding plane of OVS can be dynamically controlled by an external network controller, such as OpenFlow controller, which enables key innovation called software-defined networking in large-scale virtual environments.

OVS is included in the Linux kernel 3.3 or higher. For earlier versions of Linux kernel, you can install OVS via standard package installation (e.g., Ubuntu 12.04), or can build OVS from the official source tree at

If you have OVS already installed on your machine, you can check Open vSwitch version as follows.

$ ovs-vswitchd --version
ovs-vswitchd (Open vSwitch) 1.8.90
Compiled Oct 23 2012 15:39:36
OpenFlow versions 0x1:0x1 

The above output indicates that the OVS version is 1.8.90, and that it supports OpenFlow specification version 1.1.

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Dan Nanni is the founder and also a regular contributor of He is a Linux/FOSS enthusiast who loves to get his hands dirty with his Linux box. He likes to procrastinate when he is supposed to be busy and productive. When he is otherwise free, he likes to watch movies and shop for the coolest gadgets.

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