[ovs-discuss] ovs infrastructure deployment question

Scott Lowe scott.lowe at scottlowe.org
Mon Aug 28 14:34:16 UTC 2017

When you're running this sort of configuration (OVS in a VM on top of another hypervisor), your best bet (IMHO) is to run each "guest" VM on a different VLAN, then trunk all those VLANs into the OVS VM and write your rules accordingly.


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> On Aug 28, 2017, at 7:12 AM, Nusrat Atta <nusrat at attaresources.com> wrote:
> Hi,
> I am getting confused on how OVS is supposed to be deployed. I am using VMware ESXi to provision VMs. I have a portgroup OVS_10.0.0.x that has no uplinks (i.e. not connected physically to any ports) and all of my VMs are on this network.
> So I created a couple of VMs (e.g. ovsvm1, ovsvm2, ovswebserver, vswitch). I installed the OVS 2.7.2 on my vswitch machine and created a bridge and attached the single eth0 port to the bridge. So I also gave my vswitch VM, the ip of, gateway=, dns= and created static ips on all the other VMs (e.g. ovsvm1 ip =, gateway=, dns=, I did similar for all the other machines with everyone pointing their gateway and dns to the vswitch machine. Because it is in a mac learning mode, I can now ping every machine with out any problems.
> Is this the way it is supposed to be deployed? Because I only have one physical port on the vswitch VM I cant seem to do add-flows of simple actions like:
> ovs-ofctl add-flow mybridge priority=500,in_port=1,actions=output:2
> ovs-ofctl add-flow mybridge priority=500,in_port=2,actions=output:1
> How do you I accomplish ports? The vswitch VM is supposed to act like a physical switch with many ports.
> Do I need to install ovs on each VM? Even then I don’t know how that will help.
> Any guidance, tutorials, urls, etc. would be appreciated. I have been reading up a ton on this, but a nudge in the right direction will help.
> Thanks in advance
> Nuz
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