Hello, When using native ovs in neutron, we endup with a lot of openflow rules on ovs side. Debugging it with regular ovs-ofctl --color dump-flows is kind of painful. Is there any tool that the community is using to manage that? Thanks in advance! Arnaud.
Also interested in this. Reading rules in dump-flows is an absolute pain. In an ideal world, I would have never have to. We some stuff on our side that I'll see if I can share. On Mon, Oct 11, 2021 at 9:41 AM Arnaud Morin <arnaud.morin@gmail.com> wrote:
Hello,
When using native ovs in neutron, we endup with a lot of openflow rules on ovs side.
Debugging it with regular ovs-ofctl --color dump-flows is kind of painful.
Is there any tool that the community is using to manage that?
Thanks in advance!
Arnaud.
That would be awesome! We also built a tool which is looking for openflow rules related to a tap interface, but since we upgraded and enabled security rules in ovs, the tool isn't working anymore. So before rewriting everything from scratch, I was wondering if the community was also dealing with the same issue. So I am glad to here from you! Let me know :) Cheers Le 11 octobre 2021 17:52:52 GMT+02:00, Laurent Dumont <laurentfdumont@gmail.com> a écrit :
Also interested in this. Reading rules in dump-flows is an absolute pain. In an ideal world, I would have never have to.
We some stuff on our side that I'll see if I can share.
On Mon, Oct 11, 2021 at 9:41 AM Arnaud Morin <arnaud.morin@gmail.com> wrote:
Hello,
When using native ovs in neutron, we endup with a lot of openflow rules on ovs side.
Debugging it with regular ovs-ofctl --color dump-flows is kind of painful.
Is there any tool that the community is using to manage that?
Thanks in advance!
Arnaud.
Hi, For OVN with have small tool ml2ovn-trace: https://docs.openstack.org/neutron/ latest/ovn/ml2ovn_trace.html in the neutron repo https://docs.openstack.org/ neutron/latest/ovn/ml2ovn_trace.html but that will not be helpful for ML2/OVS at all. On poniedziałek, 11 października 2021 20:05:40 CEST Arnaud wrote:
That would be awesome!
We also built a tool which is looking for openflow rules related to a tap interface, but since we upgraded and enabled security rules in ovs, the tool isn't working anymore.
Yes, for ML2/OVS with ovs firewall driver it is really painful to debug all those OF rules.
So before rewriting everything from scratch, I was wondering if the
community
was also dealing with the same issue.
If You will have anything like that, please share with community :)
So I am glad to here from you! Let me know :) Cheers
Le 11 octobre 2021 17:52:52 GMT+02:00, Laurent Dumont
<laurentfdumont@gmail.com> a écrit :
Also interested in this. Reading rules in dump-flows is an absolute pain. In an ideal world, I would have never have to.
We some stuff on our side that I'll see if I can share.
On Mon, Oct 11, 2021 at 9:41 AM Arnaud Morin <arnaud.morin@gmail.com> wrote:
Hello,
When using native ovs in neutron, we endup with a lot of openflow rules on ovs side.
Debugging it with regular ovs-ofctl --color dump-flows is kind of painful.
Is there any tool that the community is using to manage that?
Thanks in advance!
Arnaud.
-- Slawek Kaplonski Principal Software Engineer Red Hat
Hey all, we have been working on this subject recently and we pushed this: https://review.opendev.org/c/openstack/osops/+/817715 Feel free to comment +tag [ops][large-scale] On 11.10.21 - 22:40, Slawek Kaplonski wrote:
Hi,
For OVN with have small tool ml2ovn-trace: https://docs.openstack.org/neutron/ latest/ovn/ml2ovn_trace.html in the neutron repo https://docs.openstack.org/ neutron/latest/ovn/ml2ovn_trace.html but that will not be helpful for ML2/OVS at all.
On poniedziałek, 11 października 2021 20:05:40 CEST Arnaud wrote:
That would be awesome!
We also built a tool which is looking for openflow rules related to a tap interface, but since we upgraded and enabled security rules in ovs, the tool isn't working anymore.
Yes, for ML2/OVS with ovs firewall driver it is really painful to debug all those OF rules.
So before rewriting everything from scratch, I was wondering if the
community
was also dealing with the same issue.
If You will have anything like that, please share with community :)
So I am glad to here from you! Let me know :) Cheers
Le 11 octobre 2021 17:52:52 GMT+02:00, Laurent Dumont
<laurentfdumont@gmail.com> a écrit :
Also interested in this. Reading rules in dump-flows is an absolute pain. In an ideal world, I would have never have to.
We some stuff on our side that I'll see if I can share.
On Mon, Oct 11, 2021 at 9:41 AM Arnaud Morin <arnaud.morin@gmail.com> wrote:
Hello,
When using native ovs in neutron, we endup with a lot of openflow rules on ovs side.
Debugging it with regular ovs-ofctl --color dump-flows is kind of painful.
Is there any tool that the community is using to manage that?
Thanks in advance!
Arnaud.
-- Slawek Kaplonski Principal Software Engineer Red Hat
On 10/11/21 9:39 AM, Arnaud Morin wrote:
Hello,
When using native ovs in neutron, we endup with a lot of openflow rules on ovs side.
Debugging it with regular ovs-ofctl --color dump-flows is kind of painful.
Is there any tool that the community is using to manage that?
You can check SB Logical_Flow table with ovn-sbctl lflow-list. You can also use ovn-trace(8) to inspect OVN pipeline behavior. Ihar
participants (5)
-
Arnaud
-
Arnaud Morin
-
Ihar Hrachyshka
-
Laurent Dumont
-
Slawek Kaplonski