Hi Dominik,

yes I was looking for those settings.

I have added again the external provider , but I guess the mess is even bigger as I made some stupid decisions (like removing 2 port groups :) without knowing what I'm doing) .

Sadly I can't remove all packages on the engine and hosts and reinstall them from scratch.

Pip fails to install the openstacksdk (centOS7 is not great for such tasks) on the engine and my lack of knowledge in OVN makes it even more difficult.

So the symptoms are that 2 machines can communicate with each other only if they are on the same host ,while on separate - no communications is happening.

How I created the network via UI:

1. Networks - new 

2. Fill in the name

3. Create on external provider

4. Network Port security -> disabled (even undefined does not work)

5.Connect to physical network -> ovirtmgmt

I would be happy to learn more about OVN and thus I would like to make it work.

Here is some info from the engine:

[root@engine ~]# ovn-nbctl show

switch 1288ed26-471c-4bc2-8a7d-4531f306f44c (ovirt-pxelan-2a88b2e0-d04b-4196-ad50-074501e4ed08)

    port c1eba112-5eed-4c04-b25c-d3dcfb934546

        addresses: ["56:6f:5a:65:00:06"]

    port 8b52ab60-f474-4d51-b258-cb2e0a53c34a

        type: localnet

        addresses: ["unknown"]

    port b2753040-881b-487a-92a1-9721da749be4

        addresses: ["56:6f:5a:65:00:09"]

[root@engine ~]# ovn-sbctl show

Chassis "5668499c-7dd0-41ee-bc5d-2e6ee9cd61c3"

    hostname: "ovirt3.localdomain"

    Encap geneve

        ip: "192.168.1.41"

        options: {csum="true"}

Chassis "baa0199e-d1a4-484c-af13-a41bcad19dbc"

    hostname: "ovirt1.localdomain"

    Encap geneve

        ip: "192.168.1.90"

        options: {csum="true"}

Chassis "25cc77b3-046f-45c5-af0c-ffb2f77d73f1"

    hostname: "ovirt2.localdomain"

    Encap geneve

        ip: "192.168.1.64"

        options: {csum="true"}

    Port_Binding "b2753040-881b-487a-92a1-9721da749be4"

    Port_Binding "c1eba112-5eed-4c04-b25c-d3dcfb934546"

Is it possible to remove the vNICs , Virtual Network + and recreate the ovn db to start over ?

I guess the other option is to create a VM that can be used to install python openstacksdk and modify via the python script from your previous e-mail.

Best Regards,

Strahil Nikolov

В петък, 13 декември 2019 г., 10:11:51 ч. Гринуич+2, Dominik Holler <dholler@redhat.com> написа:

On Fri, Dec 13, 2019 at 5:51 AM Strahil <hunter86_bg@yahoo.com> wrote:

Hi Dominik, All,

I've checked 'https://lists.ovirt.org/archives/list/users@ovirt.org/thread/W6U4XJHNMYMD3WIXDCPGOXLW6DFMCYIM/' and the user managed to clear up and start over.

I have removed the ovn-external-provider  from UI, but I forgot to copy the data from the fields.

Do you know any refference guide (or any tips & tricks) for adding OVN ?

The ovirt-provider-ovn entity can be added to oVirt Engine as a new provider with

Type: External Network Provider

Network Plugin: oVirt Network Provider for OVN

Provider URL: https://YOUR_ENGINE_FQDNt:9696

Username: admin@internal

Password: admin@interal password

Host Name: YOUR_ENGINE_FQDN

API Port: 35357

API Version: v2.0

Is this the information you need?

 

Thanks in advance.

Best Regards,
Strahil Nikolov

On Dec 12, 2019 20:49, Strahil <hunter86_bg@yahoo.com> wrote:

Hi Dominik,

Thanks for the reply.

Sadly the openstack module is missing on the engine and I have to figure it out.

Can't I just undeploy the ovn and then redeploy it back ?

Best Regards,
Strahil Nikolov

On Dec 12, 2019 09:32, Dominik Holler <dholler@redhat.com> wrote:

The cleanest way to clean up is to remove all entities on the OpenStack Network API on ovirt-provider-ovn, e.g. by something like

https://gist.github.com/dominikholler/19bcdc5f14f42ab5f069086fd2ff5e37#file-list_security_groups-py-L25

This should work, if not, please report a bug.

To bypass the ovirt-provider-ovn, which is not recommended and might end in an inconsistent state, you could use ovn-nbctl .

On Thu, Dec 12, 2019 at 3:33 AM Strahil Nikolov <hunter86_bg@yahoo.com> wrote:

Hi Community,

can someone hint me how to get rid of some ports? I just want to 'reset' my ovn setup.

Here is what I have so far:

[root@ovirt1 openvswitch]# ovs-vsctl list interface                  
_uuid               : be89c214-10e4-4a97-a9eb-1b82bc433a24
admin_state         : up
bfd                 : {}
bfd_status          : {}
cfm_fault           : []
cfm_fault_status    : []
cfm_flap_count      : []
cfm_health          : []
cfm_mpid            : []
cfm_remote_mpids    : []
cfm_remote_opstate  : []
duplex              : []
error               : []
external_ids        : {}
ifindex             : 35
ingress_policing_burst: 0
ingress_policing_rate: 0
lacp_current        : []
link_resets         : 0
link_speed          : []
link_state          : up
lldp                : {}
mac                 : []
mac_in_use          : "7a:7d:1d:a7:43:1d"
mtu                 : []
mtu_request         : []
name                : "ovn-25cc77-0"
ofport              : 6
ofport_request      : []
options             : {csum="true", key=flow, remote_ip="192.168.1.64"}
other_config        : {}
statistics          : {rx_bytes=0, rx_packets=0, tx_bytes=0, tx_packets=0}
status              : {tunnel_egress_iface=ovirtmgmt, tunnel_egress_iface_carrier=up}
type                : geneve

_uuid               : ec6a6688-e5d6-4346-ac47-ece1b8379440
admin_state         : down
bfd                 : {}
bfd_status          : {}
cfm_fault           : []
cfm_fault_status    : []
cfm_flap_count      : []
cfm_health          : []
cfm_mpid            : []
cfm_remote_mpids    : []
cfm_remote_opstate  : []
duplex              : []
error               : []
external_ids        : {}
ifindex             : 13
ingress_policing_burst: 0
ingress_policing_rate: 0
lacp_current        : []
link_resets         : 0
link_speed          : []
link_state          : down
lldp                : {}
mac                 : []
mac_in_use          : "66:36:dd:63:dc:48"
mtu                 : 1500
mtu_request         : []
name                : br-int
ofport              : 65534
ofport_request      : []
options             : {}
other_config        : {}
statistics          : {collisions=0, rx_bytes=0, rx_crc_err=0, rx_dropped=0, rx_errors=0, rx_frame_err=0, rx_over_err=0, rx_packets=0, tx_bytes=0, tx_dropped=0, tx_errors=0, tx_packets=0}
status              : {driver_name=openvswitch}
type                : internal

_uuid               : 1e511b4d-f7c2-499f-bd8c-07236e7bb7af
admin_state         : up
bfd                 : {}
bfd_status          : {}
cfm_fault           : []
cfm_fault_status    : []
cfm_flap_count      : []
cfm_health          : []
cfm_mpid            : []
cfm_remote_mpids    : []
cfm_remote_opstate  : []
duplex              : []
error               : []
external_ids        : {}
ifindex             : 35
ingress_policing_burst: 0
ingress_policing_rate: 0
lacp_current        : []
link_resets         : 0
link_speed          : []
link_state          : up
lldp                : {}
mac                 : []
mac_in_use          : "1a:85:d1:d9:e2:a5"
mtu                 : []
mtu_request         : []
name                : "ovn-566849-0"
ofport              : 5
ofport_request      : []
options             : {csum="true", key=flow, remote_ip="192.168.1.41"}
other_config        : {}
statistics          : {rx_bytes=0, rx_packets=0, tx_bytes=0, tx_packets=0}
status              : {tunnel_egress_iface=ovirtmgmt, tunnel_egress_iface_carrier=up}
type                : geneve

When I try to remove a port - it never ends (just hanging):

[root@ovirt1 openvswitch]# ovs-vsctl --dry-run del-port br-int ovn-25cc77-0                         
In journal  I see only this:

дек 12 04:13:57 ovirt1.localdomain ovs-vsctl[22030]: ovs|00001|vsctl|INFO|Called as ovs-vsctl --dry-run del-port br-int ovn-25cc77-0

The stranger part to me is the log output:

[root@ovirt1 openvswitch]# grep ovn-25cc77-0 /var/log/openvswitch/*.log
/var/log/openvswitch/ovs-vswitchd.log:2019-12-12T01:26:28.642Z|00032|bridge|INFO|bridge br-int: added interface ovn-25cc77-0 on port 14
/var/log/openvswitch/ovs-vswitchd.log:2019-12-12T01:45:15.646Z|00113|bridge|INFO|bridge br-int: deleted interface ovn-25cc77-0 on port 14
/var/log/openvswitch/ovs-vswitchd.log:2019-12-12T01:45:15.861Z|00116|bridge|INFO|bridge br-int: added interface ovn-25cc77-0 on port 2
/var/log/openvswitch/ovs-vswitchd.log:2019-12-12T01:50:36.678Z|00118|bridge|INFO|bridge br-int: deleted interface ovn-25cc77-0 on port 2
/var/log/openvswitch/ovs-vswitchd.log:2019-12-12T01:52:31.180Z|00121|bridge|INFO|bridge br-int: added interface ovn-25cc77-0 on port 3
/var/log/openvswitch/ovs-vswitchd.log:2019-12-12T01:55:09.734Z|00125|bridge|INFO|bridge br-int: deleted interface ovn-25cc77-0 on port 3
/var/log/openvswitch/ovs-vswitchd.log:2019-12-12T01:58:15.138Z|00127|bridge|INFO|bridge br-int: added interface ovn-25cc77-0 on port 6

I'm also attaching the verbose output of the dryrun.

Thanks in advance.

Best Regards,

Strahil Nikolov

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