Re: [ovs-discuss] OVN 21.12 and external ports
+Lucas Martins to this thread who's been working on this particular area On Thu, Oct 6, 2022 at 1:44 PM Numan Siddique wrote: > On Thu, Oct 6, 2022 at 4:27 AM Michał Nasiadka > wrote: > > > > Hello, > > > > I’m running OpenStack Wallaby and using Ironic for Bare Metal > provisioning. > > Neutron creates External ports for bare metal instances and uses > ha_chassis_group. > > Neutron normally defines a different priority for Routers LRP gateway > chassis and ha_chassis_group. > > > > I have a router with two VLANs attached - external (used for internet > connectivity - SNAT or DNAT/Floating IP) and internal VLAN network hosting > bare metal servers (and some Geneve networks for VMs). > > > > If an External port’s HA chassis group active chassis is different than > gateway chassis (external vlan network) active chassis - those bare metal > servers have intermittent network connectivity for any traffic going > through that router. > > > > Is that desired effect in OVN? > > I think it would cause some issues. I'm not able to exactly recall > why, but I've seen similar behavior and it is recommended that the > same controller which is actively handling the gateway traffic also > handles the external ports. Maybe there is mac flapping of the router > port ips. > That could be the issue. You can perhaps arp for the router ip from > your bare metal machine and see if you get 2 arp replies - one from > the controller which binds the external port and one from the gateway > chassis controller. > > Thanks > Numan > > > > > > > Best regards, > > Michal Nasiadka > > > > > > > > ___ > > discuss mailing list > > disc...@openvswitch.org > > https://mail.openvswitch.org/mailman/listinfo/ovs-discuss > ___ > discuss mailing list > disc...@openvswitch.org > https://mail.openvswitch.org/mailman/listinfo/ovs-discuss > ___ discuss mailing list disc...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
Re: [ovs-discuss] OVN 21.12 and external ports
On Thu, Oct 6, 2022 at 4:27 AM Michał Nasiadka wrote: > > Hello, > > I’m running OpenStack Wallaby and using Ironic for Bare Metal provisioning. > Neutron creates External ports for bare metal instances and uses > ha_chassis_group. > Neutron normally defines a different priority for Routers LRP gateway chassis > and ha_chassis_group. > > I have a router with two VLANs attached - external (used for internet > connectivity - SNAT or DNAT/Floating IP) and internal VLAN network hosting > bare metal servers (and some Geneve networks for VMs). > > If an External port’s HA chassis group active chassis is different than > gateway chassis (external vlan network) active chassis - those bare metal > servers have intermittent network connectivity for any traffic going through > that router. > > Is that desired effect in OVN? I think it would cause some issues. I'm not able to exactly recall why, but I've seen similar behavior and it is recommended that the same controller which is actively handling the gateway traffic also handles the external ports. Maybe there is mac flapping of the router port ips. That could be the issue. You can perhaps arp for the router ip from your bare metal machine and see if you get 2 arp replies - one from the controller which binds the external port and one from the gateway chassis controller. Thanks Numan > > Best regards, > Michal Nasiadka > > > > ___ > discuss mailing list > disc...@openvswitch.org > https://mail.openvswitch.org/mailman/listinfo/ovs-discuss ___ discuss mailing list disc...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
[ovs-discuss] OVN 21.12 and external ports
Hello, I’m running OpenStack Wallaby and using Ironic for Bare Metal provisioning. Neutron creates External ports for bare metal instances and uses ha_chassis_group. Neutron normally defines a different priority for Routers LRP gateway chassis and ha_chassis_group. I have a router with two VLANs attached - external (used for internet connectivity - SNAT or DNAT/Floating IP) and internal VLAN network hosting bare metal servers (and some Geneve networks for VMs). If an External port’s HA chassis group active chassis is different than gateway chassis (external vlan network) active chassis - those bare metal servers have intermittent network connectivity for any traffic going through that router. Is that desired effect in OVN? Best regards, Michal Nasiadka ___ discuss mailing list disc...@openvswitch.org https://mail.openvswitch.org/mailman/listinfo/ovs-discuss
