diff --git a/zuul.d/base-nested-switch.yaml b/zuul.d/base-nested-switch.yaml
new file mode 100644
index 0000000..69e841f
--- /dev/null
+++ b/zuul.d/base-nested-switch.yaml
@@ -0,0 +1,32 @@
+- nodeset:
+    name: neutron-nested-virt-ubuntu-focal
+    nodes:
+      - name: controller
+        label: nested-virt-ubuntu-focal
+    groups:
+      - name: tempest
+        nodes:
+          - controller
+
+# Base nested switch job for non EM releases
+- job:
+    name: neutron-tempest-plugin-scenario-nested-switch
+    parent: neutron-tempest-plugin-scenario
+    abstract: true
+    branches: ^(?!stable/(queens|rocky|stein|train|ussuri)).*$
+    # Comment nodeset and vars to switch back to non nested nodes
+    nodeset: neutron-nested-virt-ubuntu-focal
+    vars:
+      devstack_localrc:
+        LIBVIRT_TYPE: kvm
+        LIBVIRT_CPU_MODE: host-passthrough
+        CIRROS_VERSION: 0.5.1
+        DEFAULT_IMAGE_NAME: cirros-0.5.1-x86_64-disk
+        DEFAULT_IMAGE_FILE_NAME: cirros-0.5.1-x86_64-disk.img
+
+# Base nested switch job for EM releases
+- job:
+    name: neutron-tempest-plugin-scenario-nested-switch
+    parent: neutron-tempest-plugin-scenario
+    abstract: true
+    branches: ^(stable/(queens|rocky|stein|train|ussuri)).*$