[ovirt-users] oVirt and Openstack Neutron: network not working

Thu Mar 9 15:26:45 UTC 2017

On Thu, Mar 9, 2017 at 2:24 PM, Marcin Mirecki <mmirecki at redhat.com> wrote:
> Hello Luca,

Hello Marcin,

> The osn provider basically only connects the vnics to the osn networks,
> items like dhcp must be handled on the osn networks itself.

Yes, i know. The network is defined by neutron, which has it's own dhcp server.

> Have you tried connecting any nics manually and checking connectivity
> between them?

What do you mean?

> No connectivity with static IP's could hint at some configuration problems.
> Are osn/ovs set up correctly? Firewall blocking traffic?

there is no firewall between openstack controllers and ovirt
engine/hosts. My doubt is about configuration, i've configured in this
way:

Name: openstack-networks
Type: OpenStack Networking
Description:
Provider URL: http://openstack.example.com:9696

Flagged read-only and requires authentication

Set the authentication and tested, reports everything ok.

Nothing else has been configured. I didn't found any documentation
that clarified if is enough.

After powering on i see on openstack this:

[stack at opstrio1101 ~]$ openstack port list | grep 00:1a:4a:16:01:51
<-- this is mac address of oVirt VM
| 86c46fed-dddf-4776-a765-27d4e52e861c | nic1
                        | 00:1a:4a:16:01:51 | ip_address='172.25.7.4',
subnet_id='280a98ad-0fd5-4961-a307-d1bfea8355cd'     |

> Can you please send us a more detailed descirption of your env (ip addr,
> brctl show, ovs-vsctl show)?

This are the output of the commands you asked from a node where a vm
that is attached to a neutron network is running:

[root at ovirt002 ~]# ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN qlen 1
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host
       valid_lft forever preferred_lft forever
2: enp2s0f0: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq
master bond0 state UP qlen 1000
    link/ether 00:21:5a:9b:b7:93 brd ff:ff:ff:ff:ff:ff
3: enp2s0f1: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq
master bond0 state UP qlen 1000
    link/ether 00:21:5a:9b:b7:93 brd ff:ff:ff:ff:ff:ff
4: enp2s0f2: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq
master bond1 state UP qlen 1000
    link/ether 00:21:5a:9b:b7:97 brd ff:ff:ff:ff:ff:ff
5: enp2s0f3: <BROADCAST,MULTICAST,SLAVE,UP,LOWER_UP> mtu 1500 qdisc mq
master bond1 state UP qlen 1000
    link/ether 00:21:5a:9b:b7:97 brd ff:ff:ff:ff:ff:ff
6: enp2s0f4: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq
state DOWN qlen 1000
    link/ether 00:21:5a:9b:b7:9b brd ff:ff:ff:ff:ff:ff
7: enp2s0f5: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq
state DOWN qlen 1000
    link/ether 00:21:5a:9b:b7:9d brd ff:ff:ff:ff:ff:ff
8: enp2s0f6: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq
state DOWN qlen 1000
    link/ether b4:b5:2f:55:bc:eb brd ff:ff:ff:ff:ff:ff
9: enp2s0f7: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc mq
state DOWN qlen 1000
    link/ether b4:b5:2f:55:bc:ef brd ff:ff:ff:ff:ff:ff
10: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc
noqueue master ovirtmgmt state UP qlen 1000
    link/ether 00:21:5a:9b:b7:93 brd ff:ff:ff:ff:ff:ff
11: ovirtmgmt: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
noqueue state UP qlen 1000
    link/ether 00:21:5a:9b:b7:93 brd ff:ff:ff:ff:ff:ff
    inet 10.5.40.192/22 brd 10.5.43.255 scope global ovirtmgmt
       valid_lft forever preferred_lft forever
    inet6 fe80::221:5aff:fe9b:b793/64 scope link
       valid_lft forever preferred_lft forever
12: bond1: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc
noqueue master NFS state UP qlen 1000
    link/ether 00:21:5a:9b:b7:97 brd ff:ff:ff:ff:ff:ff
13: NFS: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue
state UP qlen 1000
    link/ether 00:21:5a:9b:b7:97 brd ff:ff:ff:ff:ff:ff
    inet 10.5.160.46/22 brd 10.5.163.255 scope global NFS
       valid_lft forever preferred_lft forever
    inet6 fe80::221:5aff:fe9b:b797/64 scope link
       valid_lft forever preferred_lft forever
14: ;vdsmdummy;: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state DOWN qlen 1000
    link/ether be:ae:6d:b7:0f:f5 brd ff:ff:ff:ff:ff:ff
16: qvo86c46fed-dd at qvb86c46fed-dd:
<BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc noqueue state
UP qlen 1000
    link/ether 5e:d1:06:97:f0:19 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::5cd1:6ff:fe97:f019/64 scope link
       valid_lft forever preferred_lft forever
17: qvb86c46fed-dd at qvo86c46fed-dd:
<BROADCAST,MULTICAST,PROMISC,UP,LOWER_UP> mtu 1500 qdisc noqueue state
UP qlen 1000
    link/ether e6:73:ee:8e:03:09 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::e473:eeff:fe8e:309/64 scope link
       valid_lft forever preferred_lft forever
18: qbr86c46fed-dd: <BROADCAST,MULTICAST> mtu 1500 qdisc noop state
DOWN qlen 1000
    link/ether fe:1a:4a:16:01:51 brd ff:ff:ff:ff:ff:ff
21: tap86c46fed-dd: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc
pfifo_fast master qbr86c46fed-dd state UNKNOWN qlen 1000
    link/ether fe:1a:4a:16:01:51 brd ff:ff:ff:ff:ff:ff

[root at ovirt002 ~]# brctl show
bridge name bridge id STP enabled interfaces
;vdsmdummy; 8000.000000000000 no
NFS 8000.00215a9bb797 no bond1
ovirtmgmt 8000.00215a9bb793 no bond0
qbr86c46fed-dd 8000.fe1a4a160151 no tap86c46fed-dd

[root at ovirt002 ~]# ovs-vsctl show
ovs-vsctl: unix:/var/run/openvswitch/db.sock: database connection
failed (No such file or directory)

If you need other clarifications i'll dig without problem in this env.

Luca

-- 
"E' assurdo impiegare gli uomini di intelligenza eccellente per fare
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"Internet è la più grande biblioteca del mondo.
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Luca 'remix_tj' Lorenzetto, http://www.remixtj.net , <lorenzetto.luca at gmail.com>