[ovs-discuss] openvswitch-ovn in fedora 28

Numan Siddique nusiddiq at redhat.com
Wed Jun 27 20:09:02 UTC 2018


I think Mark has provided you the required guidance.

You could also refer openstack networking-ovn documentation -
https://docs.openstack.org/networking-ovn/latest/install/manual.html

Thanks
Numan



On Thu, Jun 28, 2018 at 1:26 AM Mark Michelson <mmichels at redhat.com> wrote:

> On 06/26/2018 05:57 PM, Vasiliy Tolstov wrote:
> > вт, 26 июн. 2018 г. в 23:24, Mark Michelson <mmichels at redhat.com>:
> >>
> >> On 06/19/2018 08:42 AM, Vasiliy Tolstov wrote:
> >>> Hi! I'm try to run ovn in fedora 28.
> >>> I have 3 hosts:
> >>> gateway=controler 172.16.1.254
> >>> compute1 172.16.1.1
> >>> compute2 172.16.1.2
> >>>
> >>> What services i need to enable on compute and on controller?
> >>
> >> On the controller, you should start the ovn-northd service in systemd:
> >> `systemctl start ovn-northd`
> >> If there are VMs on your controller node that you want to connect to the
> >> overlay network, then you would also need to run the openvswitch and
> >> ovn-controller services:
> >> `systemctl start openvswitch`
> >> `systemctl start ovn-controller`
> >>
> >
> > Thanks, already do that.
> >
> >> On the compute nodes, you will want to start the openvswitch and
> >> ovn-controller services.
> >> `systemctl start openvswitch`
> >> `systemctl start ovn-controller`
> >>
> >
> > Yes, already have this.
> >
> >>> Also as i found, i need to enable listening ovn-northd on 172.16.1.254
> >>> and connect to it other nodes via port 6641 and 6642. How can i do
> >>> that in fedora?
> >>
> >> This is done the same way in Fedora as in other distributions. On your
> >> controller, you can set up a basic TCP listener on those ports by
> running:
> >>
> >> ovn-nbctl set-connection ptcp:6641
> >> ovn-sbctl set-connection ptcp:6642
> >>
> >
> > Thanks!
> >
> >> (I recommend using SSL. You can learn more about this topic in the
> >> ovn-nbctl and ovn-nb manpages)
> >>
> >> On your compute nodes, you can point those to your controller's port
> >> 6642, by running
> >>
> >> ovs-vsctl set open_vswitch .
> external_ids:ovn-remote=<controller_ip>:6642
> >>
> >
> > On this i have qeustion, i found in google that i need also specify
> > external_ids:ovn-nb="tcp:$CENTRAL_IP:6641"
> > external_ids:ovn-encap-type="geneve,vxlan"
> >
> > Does i need this is all compute nodes?
>
> You will need external_ids:ovn-encap-type, but you don't need
> external_ids:ovn-nb. I don't know what external_ids:ovn-nb does.
>
> >
> >>> Also if my controller node have vm that i want to connect to internal
> >>> ovn network what services i need to run additional on controller node
> >>> and does it possible?
> >>
> >> This is a pretty broad topic, but I suggest that you look at the
> >> following areas:
> >>
> >> * On logical switches, look up "localnet" ports.
> >> * Look into the Gateway_Chassis table in the OVN northbound database,
> >> and how to set these up on logical router ports.
> >>
> >> You can get more information in the ovn-nb manpage for both of these
> >> topics.
> >>
> >
> > Thanks for all answers!
> >
>
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