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Questions tagged [ovn]

OVN, the Open Virtual Network, is a system to support virtual network abstraction on top of Open vSwitch.

OVN, the Open Virtual Network, is a system to support virtual network abstraction. OVN complements the existing capabilities of OVS to add native support for virtual network abstractions, such as virtual L2 and L3 overlays and security groups. Services such as DHCP are also desirable features. Just like OVS, OVN’s design goal is to have a production-quality implementation that can operate at significant scale.

6 questions
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Setting up DHCP with OVN

I'm trying to set up an environment similar to the one described here in which OVN will provide DHCP service to logical networks. I have a logical switch named `net0 with two ports: [root@ovn0 ~]# ovn-nbctl show [root@ovn0 ~]# ovn-nbctl show switch…
larsks
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1 answer

OVN Cluster Health Command

Is there any command-line tool for the OVN Cluster Health check? Or each of its components? and a command or commands which gives stats about the cluster. For example, without a functional test, I want to know if everything works properly in our OVN…
Milad Jahandideh
  • 212
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VM can't ping gateway in subnet if port-security enabled

Openstack 2023.2 ovn 23.09.3 VM with default security-group (permit ANY on egress) can't ping gateway in subnet, however ARP is ok, it can send traffic trough gateway and can ping external resources and other hosts in the subnet. Without port…
ivan
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OVN Openstack Port Security

I run some scenarios on OpenStack with OVN backend for neutron (in all tests security-group has no rule) when port security is enabled I can not watch the unicast traffic of other VMs with tcpdump but when port security is disabled I can watch other…
Saeed P
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The OpenStack network uses OVN (Geneve). The geneve internal network port (network: distributed) of the second computing node is in the DOWN state

May I ask where I can find instructions for this port. All the cloud hosts I created in the second computing node cannot access the internal gateway. info | host | IP | disk | CPU | memory | |…
sam123
  • 23
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1 answer

How i can assign /32 ip address to openstack nova instance without float ip?

I'm developing a custom panel for my openstack home lab via rest api. I've investigated Hetzner cloud ip (v4) addressing mechanism and i found it is like this: It is assigning /32 valid ip v4 address and routing via invalid ip for preventing ip…
Vahid Alimohamadi
  • 134