diff --git a/neutron/common/ovn/extensions.py b/neutron/common/ovn/extensions.py
index 3934e568231..624c241cc21 100644
--- a/neutron/common/ovn/extensions.py
+++ b/neutron/common/ovn/extensions.py
@@ -15,6 +15,7 @@
 from neutron_lib.api.definitions import agent as agent_def
 from neutron_lib.api.definitions import availability_zone as az_def
 from neutron_lib.api.definitions import router_availability_zone as raz_def
+from neutron_lib.api.definitions import segment as seg_def
 
 # NOTE(russellb) This remains in its own file (vs constants.py) because we want
 # to be able to easily import it and export the info without any dependencies
@@ -61,4 +62,5 @@ ML2_SUPPORTED_API_EXTENSIONS = [
     'standard-attr-timestamp',
     'trunk',
     'quota_details',
+    seg_def.ALIAS,
 ]
diff --git a/zuul.d/tempest-multinode.yaml b/zuul.d/tempest-multinode.yaml
index 2799b340165..47e4681a4fd 100644
--- a/zuul.d/tempest-multinode.yaml
+++ b/zuul.d/tempest-multinode.yaml
@@ -165,6 +165,7 @@
         s-proxy: false
         tls-proxy: true
         q-qos: true
+        neutron-segments: True
     group-vars:
       subnode:
         devstack_services: