On Fri, Mar 15, 2019 at 5:15 PM Miguel Duarte de Mora Barroso
<[email protected]> wrote:
>
> On Fri, Mar 15, 2019 at 3:49 PM Staniforth, Paul
> <[email protected]> wrote:
> >
> > Thanks,
> >               I can see now from "ovn-sbctl show" on the engine machine  
> > that 2 of our hosts haven't  deployed ovn
> >
> > ● ovn-controller.service - OVN controller daemon
> >    Loaded: loaded (/usr/lib/systemd/system/ovn-controller.service; 
> > disabled; vendor preset: disabled)
> >    Active: inactive (dead)
> > This was one of the things that was confusing me
> >
> > I'll see if I can deploy ovn without reinstalling, also is it possible to 
> > change the deployment to use a different network rather than ovirtmgmt?
>
> You could use vdsm-tool to reconfigure OVN on the hosts.
>
> Please try this:
>
> vdsm-tool ovn-config <your_engine_ip> ovirtmgmt
>
> If you want to setup your overlay on top of a different network,
> replace ovirtmgmt with that network name.
>
> To ensure connectivity accross the cluster, make sure all your hosts
> are configured to run overlays on top *of the same network*.
>
> Make sure that other network is good to go before; I'd hate for you to
> end up worse than you are now, or lose faith on ovn :)

I think I wasn't adamant enough here; please try to get OVN controller
configure using ovirtmgmt network before.

If that works as expected, you can later on evaluate if setting the
overlay on top of a different network is beneficial.

>
>
>
>
>
>
>
> >
> > Regards,
> >                 Paul S.
> > ________________________________________
> > From: Miguel Duarte de Mora Barroso <[email protected]>
> > Sent: 15 March 2019 11:28
> > To: Staniforth, Paul
> > Cc: [email protected]
> > Subject: Re: [ovirt-users] ovn-provider-network
> >
> > On Thu, Mar 14, 2019 at 3:04 PM Staniforth, Paul
> > <[email protected]> wrote:
> > >
> > > Thanks Miguel,
> > >                          if we configure it connect to a physical network 
> > > and select the Data Centre Network  I assume it will create the overlay 
> > > network on top of that logical network.
> >
> > Let me clarify; the network on top of which it sets up the overlay is
> > defined when the host is added, and is *only* used for inter-host
> > communication. When within the same host, it simply uses the OVS
> > bridge.
> >
> > What (I think) you mean uses the localnet feature of OVN, where the
> > packets leaving the OVS bridge are forwarded to the external logical
> > network you configure.
> >
> > These 2 concepts are unrelated.
> >
> >
> > > Also is there any documentation about the ovn-provider-network 
> > > architecture.
> > >
> > > Regards,
> > >                 Paul S.
> > > ________________________________________
> > > From: Miguel Duarte de Mora Barroso <[email protected]>
> > > Sent: 14 March 2019 13:15
> > > To: Staniforth, Paul
> > > Cc: [email protected]
> > > Subject: Re: [ovirt-users] ovn-provider-network
> > >
> > > On Wed, Mar 13, 2019 at 10:08 PM Staniforth, Paul
> > > <[email protected]> wrote:
> > > >
> > > > Hello,
> > > >
> > > >               we are using oVirt-4.2.8 and I have created a logical 
> > > > network using the ovn-network-provider, I haven't configured it to 
> > > > connect to a physical network.
> > > >
> > > >
> > > > I have 2 VMs running on 2 hosts which can connect to each other this 
> > > > logical network. The only connection between the hosts is over the 
> > > > ovirtmgmt network so presumably the traffic is using this?
> > >
> > > Yes, OVN sets up an overlay network on top of ovirtmgmt network.
> > >
> > > >
> > > >
> > > > Thanks,
> > > >
> > > >                Paul S.
> > > >
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