Open Stack

>
> I'm using 'geneve' for my tenant networks.
>
> By the way, by pinging 8.8.8.8 from an instance with FIP, tcpdump on its
> Compute node shows an ARP request for every lost ping. Is it normal
> behaviour?
>
> 21:13:04.808508 ARP, Request who-has dns.google tell  X.X.X.X , length 28
> 21:13:05.808726 ARP, Request who-has dns.google tell  X.X.X.X , length 28
> 21:13:06.808900 ARP, Request who-has dns.google tell  X.X.X.X , length 28
> .
> .
> .
> X.X.X.X if FIP of VM.
>

If so, it looks like the bug
<https://bugzilla.redhat.com/show_bug.cgi?id=1834433> mentioned above.

On Tue, Sep 8, 2020 at 7:51 PM Reza Bakhshayeshi <reza.b2008 at gmail.com>
wrote:

> Hi Roman,
>
> I'm using 'geneve' for my tenant networks.
>
> By the way, by pinging 8.8.8.8 from an instance with FIP, tcpdump on its
> Compute node shows an ARP request for every lost ping. Is it normal
> behaviour?
>
> 21:13:04.808508 ARP, Request who-has dns.google tell  X.X.X.X , length 28
> 21:13:05.808726 ARP, Request who-has dns.google tell  X.X.X.X , length 28
> 21:13:06.808900 ARP, Request who-has dns.google tell  X.X.X.X , length 28
> .
> .
> .
> X.X.X.X if FIP of VM.
>
>
> On Tue, 8 Sep 2020 at 17:21, Roman Safronov <rsafrono at redhat.com> wrote:
>
>> Hi Reza,
>>
>> Are you using 'geneve' tenant networks or 'vlan' ones? I am asking
>> because with VLAN we have the following DVR issue [1]
>>
>> [1] Bug 1704596 - FIP traffix does not work on OVN-DVR setup when using
>> VLAN tenant network type
>> <https://bugzilla.redhat.com/show_bug.cgi?id=1704596>
>>
>> On Tue, Sep 8, 2020 at 2:04 PM Reza Bakhshayeshi <reza.b2008 at gmail.com>
>> wrote:
>>
>>> Hi Slawek,
>>>
>>> I'm using the latest CentOS 8 Ussuri OVN packages at:
>>> https://trunk.rdoproject.org/centos8-ussuri/deps/latest/x86_64/
>>>
>>> On both Controller and Compute I get:
>>>
>>> # rpm -qa | grep ovn
>>> ovn-host-20.03.0-4.el8.x86_64
>>> ovn-20.03.0-4.el8.x86_64
>>>
>>> # yum info ovn
>>> Installed Packages
>>> Name         : ovn
>>> Version      : 20.03.0
>>> Release      : 4.el8
>>> Architecture : x86_64
>>> Size         : 12 M
>>> Source       : ovn-20.03.0-4.el8.src.rpm
>>> Repository   : @System
>>> From repo    : delorean-ussuri-testing
>>> Summary      : Open Virtual Network support
>>> URL          : http://www.openvswitch.org/
>>> License      : ASL 2.0 and LGPLv2+ and SISSL
>>>
>>> Do you suggest installing ovn manually from source on containers?
>>> ي
>>>
>>> On Tue, 8 Sep 2020 at 12:39, Slawek Kaplonski <skaplons at redhat.com>
>>> wrote:
>>>
>>>> Hi,
>>>>
>>>> Maybe You hit this bug [1]. Please check what ovn version do You have
>>>> and maybe
>>>> update it if needed.
>>>>
>>>> On Mon, Sep 07, 2020 at 06:23:44PM +0430, Reza Bakhshayeshi wrote:
>>>> > Hi all,
>>>> >
>>>> > I deployed an environment with TripleO Ussuri with 3 HA Controllers
>>>> and
>>>> > some Compute nodes with neutron-ovn-dvr-ha.yaml
>>>> > Instances have Internet access through routers with SNAT traffic (in
>>>> this
>>>> > case traffic is routed via a controller node), and by assigning IP
>>>> address
>>>> > directly from provider network (not having a router).
>>>> >
>>>> > But in case of assigning FIP from provider to an instance, VM Internet
>>>> > connection is lost.
>>>> > Here is the output of router nat lists, which seems OK:
>>>> >
>>>> >
>>>> > # ovn-nbctl lr-nat-list 587182a4-4d6b-41b0-9fd8-4c1be58811b0
>>>> > TYPE             EXTERNAL_IP        EXTERNAL_PORT    LOGICAL_IP
>>>> >  EXTERNAL_MAC         LOGICAL_PORT
>>>> > dnat_and_snat    X.X.X.X                      192.168.0.153
>>>> > fa:16:3e:0a:86:4d    e65bd8e9-5f95-4eb2-a316-97e86fbdb9b6
>>>> > snat             Y.Y.Y.Y                      192.168.0.0/24
>>>> >
>>>> >
>>>> > I replaced FIP with X.X.X.X and router IP with Y.Y.Y.Y
>>>> >
>>>> > When I remove * EXTERNAL_MAC* and *LOGICAL_PORT*, FIP works fine and
>>>> as it
>>>> > has to be, but traffic routes from a Controller node and it won't be
>>>> > distributed anymore.
>>>> >
>>>> > Any idea or suggestion would be grateful.
>>>> > Regards,
>>>> > Reza
>>>>
>>>> [1] https://bugzilla.redhat.com/show_bug.cgi?id=1834433
>>>>
>>>> --
>>>> Slawek Kaplonski
>>>> Principal software engineer
>>>> Red Hat
>>>>
>>>>
>>
>> --
>>
>> ROMAN SAFRONOV
>>
>> SENIOR QE, OPENSTACK NETWORKING
>>
>> Red Hat <https://www.redhat.com/>
>>
>> Israel
>>
>> M: +972545433957
>>
>> <https://red.ht/sig>
>>
>
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