Open vSwitch (OVS) and OVN requirements¶
Neutron uses Open vSwitch with the ML2/openswitch and ML2/ovn mechanism drivers. The latter also uses OVN. These are binary dependencies of a Neutron deployment with some version constraints. In the table below we hope to document the known minimum versions of OVS and OVN per Neutron release. Or at least the minimum versions we know we used in our CI system while developing.
We also have CI jobs to test with the main branch of OVS and OVN therefore we feel no need to document the known maximum versions - the newest OVS/OVN release should work.
Warning
In releases 2024.1 and earlier it happened that different groups of CI jobs (or rather Zuul job templates: base, grenade, rally) used different OVS and OVN versions. Here we document only the base version, that is the version used in single and multinode tempest jobs. Stadium projects like ovn-bgp-agent may also have different requirements.
OpenStack Release |
Neutron Release |
|
|
2025.2 (flamingo) |
27.0 |
branch-3.3 |
branch-24.03 |
2025.1 (epoxy) |
26.0 |
branch-3.3 |
branch-24.03 |
2024.2 (dalmatian) |
25.0 |
branch-3.3 |
branch-24.03 |
2024.1 (caracal) |
24.0 |
a4b04276ab5934d087669ff2d191a23931335c87 |
v21.06.0 |
2023.1 (antelope) |
22.0 |
a4b04276ab5934d087669ff2d191a23931335c87 |
v21.06.0 |
zed |
21.0 |
a4b04276ab5934d087669ff2d191a23931335c87 |
v21.06.0 |
yoga |
20.0 |
v2.16.0 |
v21.06.0 |
xena |
19.0 |
v2.16.0 |
v21.06.0 |
wallaby |
18.0 |
0047ca3a0290f1ef954f2c76b31477cf4b9755f5 |
v20.06.1 |
victoria |
17.0 |
51e9479da62edb04a5be47a7655de75c299b9fa1 |
v20.06.1 |
