diff --git a/neutron_tempest_plugin/api/admin/test_agent_management.py b/neutron_tempest_plugin/api/admin/test_agent_management.py
index f63e81b..399e428 100644
--- a/neutron_tempest_plugin/api/admin/test_agent_management.py
+++ b/neutron_tempest_plugin/api/admin/test_agent_management.py
@@ -38,9 +38,13 @@
         # Heartbeats must be excluded from comparison
         self.agent.pop('heartbeat_timestamp', None)
         self.agent.pop('configurations', None)
+        # Exclude alive as it can happen that when testclass'
+        # resource_setup executed the selected agent is not up
+        self.agent.pop('alive', None)
         for agent in agents:
             agent.pop('heartbeat_timestamp', None)
             agent.pop('configurations', None)
+            agent.pop('alive', None)
         self.assertIn(self.agent, agents)
 
     @decorators.idempotent_id('e335be47-b9a1-46fd-be30-0874c0b751e6')
diff --git a/neutron_tempest_plugin/api/admin/test_logging.py b/neutron_tempest_plugin/api/admin/test_logging.py
index f4cbe29..b76377d 100644
--- a/neutron_tempest_plugin/api/admin/test_logging.py
+++ b/neutron_tempest_plugin/api/admin/test_logging.py
@@ -28,9 +28,11 @@
 
     @decorators.idempotent_id('8d2e1ba5-455b-4519-a88e-e587002faba6')
     def test_log_lifecycle(self):
+        security_group = self.create_security_group()
         name = data_utils.rand_name('test-log')
         description = data_utils.rand_name('test-log-desc')
         log = self.create_log(name=name, description=description,
+                              resource_id=security_group['id'],
                               resource_type='security_group', enabled=True)
 
         # Test 'show log'
@@ -72,3 +74,27 @@
         # Verify that only required fields present in logging types
         for log_type in actual_list_log_types:
             self.assertEqual(tuple(expected_log_keys), tuple(log_type.keys()))
+
+    @decorators.idempotent_id('1ab4eb2a-76f5-45b9-816b-1aa497a71eea')
+    def test_log_deleted_with_corresponding_security_group(self):
+        security_group = self.create_security_group()
+        name = data_utils.rand_name('test-log')
+        log = self.create_log(
+            name=name,
+            resource_type='security_group',
+            resource_id=security_group['id'],
+            enabled=True)
+
+        # Ensure log was created
+        retrieved_log = self.admin_client.show_log(log['id'])['log']
+        self.assertEqual(name, retrieved_log['name'])
+        self.assertEqual(security_group['id'], retrieved_log['resource_id'])
+        self.assertEqual('security_group', retrieved_log['resource_type'])
+        self.assertTrue(retrieved_log['enabled'])
+
+        # Delete SG
+        self.delete_security_group(security_group)
+
+        # Ensure log is also deleted
+        self.assertRaises(exceptions.NotFound,
+                          self.admin_client.show_log, log['id'])
diff --git a/neutron_tempest_plugin/api/base.py b/neutron_tempest_plugin/api/base.py
index ecdd00a..3c7441a 100644
--- a/neutron_tempest_plugin/api/base.py
+++ b/neutron_tempest_plugin/api/base.py
@@ -1105,12 +1105,13 @@
                    target_id=None, event='ALL', enabled=True):
         """Wrapper utility that returns a test log object."""
         log_args = {'name': name,
-                    'description': description,
                     'resource_type': resource_type,
                     'resource_id': resource_id,
                     'target_id': target_id,
                     'event': event,
                     'enabled': enabled}
+        if description:
+            log_args['description'] = description
         body = cls.admin_client.create_log(**log_args)
         log_object = body['log']
         cls.log_objects.append(log_object)
diff --git a/neutron_tempest_plugin/scenario/base.py b/neutron_tempest_plugin/scenario/base.py
index 8591c89..6674cb8 100644
--- a/neutron_tempest_plugin/scenario/base.py
+++ b/neutron_tempest_plugin/scenario/base.py
@@ -534,7 +534,7 @@
             return False
 
         try:
-            utils.wait_until_true(system_booted, sleep=5)
+            utils.wait_until_true(system_booted, timeout=90, sleep=5)
         except utils.WaitTimeout:
             LOG.debug("No correct output in console of server %s found. "
                       "Guest operating system status can't be checked.",
diff --git a/neutron_tempest_plugin/scenario/test_security_groups.py b/neutron_tempest_plugin/scenario/test_security_groups.py
index 40aa66a..f47ce44 100644
--- a/neutron_tempest_plugin/scenario/test_security_groups.py
+++ b/neutron_tempest_plugin/scenario/test_security_groups.py
@@ -71,10 +71,14 @@
     @classmethod
     def setup_credentials(cls):
         super(NetworkSecGroupTest, cls).setup_credentials()
-        cls.project_id = cls.os_primary.credentials.tenant_id
         cls.network_client = cls.os_admin.network_client
 
     @classmethod
+    def setup_clients(cls):
+        super(NetworkSecGroupTest, cls).setup_clients()
+        cls.project_id = cls.os_primary.credentials.tenant_id
+
+    @classmethod
     def resource_setup(cls):
         super(NetworkSecGroupTest, cls).resource_setup()
         # setup basic topology for servers we can log into it
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)).*$
diff --git a/zuul.d/base.yaml b/zuul.d/base.yaml
index a492ddb..bd2ae09 100644
--- a/zuul.d/base.yaml
+++ b/zuul.d/base.yaml
@@ -100,19 +100,12 @@
       - ^rally-jobs/.*$
       - ^vagrant/.*$
       - ^zuul.d/(queens|rocky|stein|train|ussuri)_jobs.yaml$
+      - ^zuul.d/base-nested-switch.yaml$
 
 - job:
     name: neutron-tempest-plugin-scenario
     parent: neutron-tempest-plugin-base
     abstract: true
-    nodeset:
-      nodes:
-        - name: controller
-          label: nested-virt-ubuntu-focal
-      groups:
-        - name: tempest
-          nodes:
-            - controller
     description: |
       Perform setup common to all tempest scenario test jobs.
     vars:
@@ -125,12 +118,7 @@
           (^tempest.api.compute.servers.test_attach_interfaces)|\
           (^tempest.api.compute.servers.test_multiple_create)"
       devstack_localrc:
-        LIBVIRT_TYPE: kvm
-        LIBVIRT_CPU_MODE: host-passthrough
         PHYSICAL_NETWORK: default
-        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
         IMAGE_URLS: https://cloud-images.ubuntu.com/minimal/releases/focal/release/ubuntu-20.04-minimal-cloudimg-amd64.img
         ADVANCED_IMAGE_NAME: ubuntu-20.04-minimal-cloudimg-amd64
         ADVANCED_INSTANCE_TYPE: ntp_image_256M
diff --git a/zuul.d/master_jobs.yaml b/zuul.d/master_jobs.yaml
index 908649f..a0d1c26 100644
--- a/zuul.d/master_jobs.yaml
+++ b/zuul.d/master_jobs.yaml
@@ -131,11 +131,12 @@
       - ^rally-jobs/.*$
       - ^vagrant/.*$
       - ^zuul.d/(queens|rocky|stein|train|ussuri)_jobs.yaml$
+      - ^zuul.d/base-nested-switch.yaml$
 
 
 - job:
     name: neutron-tempest-plugin-scenario-openvswitch
-    parent: neutron-tempest-plugin-scenario
+    parent: neutron-tempest-plugin-scenario-nested-switch
     timeout: 10000
     vars:
       devstack_services:
@@ -207,10 +208,11 @@
       - ^rally-jobs/.*$
       - ^vagrant/.*$
       - ^zuul.d/(queens|rocky|stein|train|ussuri)_jobs.yaml$
+      - ^zuul.d/base-nested-switch.yaml$
 
 - job:
     name: neutron-tempest-plugin-scenario-openvswitch-iptables_hybrid
-    parent: neutron-tempest-plugin-scenario
+    parent: neutron-tempest-plugin-scenario-nested-switch
     timeout: 10000
     vars:
       devstack_services:
@@ -292,6 +294,7 @@
       - ^rally-jobs/.*$
       - ^vagrant/.*$
       - ^zuul.d/(queens|rocky|stein|train|ussuri)_jobs.yaml$
+      - ^zuul.d/base-nested-switch.yaml$
 
 - job:
     name: neutron-tempest-plugin-scenario-openvswitch-distributed-dhcp
@@ -323,7 +326,7 @@
 
 - job:
     name: neutron-tempest-plugin-scenario-linuxbridge
-    parent: neutron-tempest-plugin-scenario
+    parent: neutron-tempest-plugin-scenario-nested-switch
     timeout: 10000
     roles:
       - zuul: openstack/neutron
@@ -412,10 +415,11 @@
       - ^rally-jobs/.*$
       - ^vagrant/.*$
       - ^zuul.d/(queens|rocky|stein|train|ussuri)_jobs.yaml$
+      - ^zuul.d/base-nested-switch.yaml$
 
 - job:
     name: neutron-tempest-plugin-scenario-ovn
-    parent: neutron-tempest-plugin-scenario
+    parent: neutron-tempest-plugin-scenario-nested-switch
     timeout: 10800
     vars:
       network_api_extensions: *api_extensions
@@ -541,6 +545,7 @@
       - ^rally-jobs/.*$
       - ^vagrant/.*$
       - ^zuul.d/(queens|rocky|stein|train|ussuri)_jobs.yaml$
+      - ^zuul.d/base-nested-switch.yaml$
 
 - job:
     name: neutron-tempest-plugin-dvr-multinode-scenario
@@ -733,7 +738,7 @@
 
 - job:
     name: neutron-tempest-plugin-designate-scenario
-    parent: neutron-tempest-plugin-scenario
+    parent: neutron-tempest-plugin-scenario-nested-switch
     description: Neutron designate integration scenario
     required-projects:
       - openstack/designate
@@ -782,6 +787,7 @@
       - ^rally-jobs/.*$
       - ^vagrant/.*$
       - ^zuul.d/(queens|rocky|stein|train|ussuri)_jobs.yaml$
+      - ^zuul.d/base-nested-switch.yaml$
 
 - job:
     name: neutron-tempest-plugin-sfc
@@ -844,6 +850,7 @@
       - ^rally-jobs/.*$
       - ^vagrant/.*$
       - ^zuul.d/(queens|rocky|stein|train|ussuri)_jobs.yaml$
+      - ^zuul.d/base-nested-switch.yaml$
 
 - job:
     name: neutron-tempest-plugin-bgpvpn-bagpipe
@@ -902,6 +909,7 @@
       - ^rally-jobs/.*$
       - ^vagrant/.*$
       - ^zuul.d/(queens|rocky|stein|train|ussuri)_jobs.yaml$
+      - ^zuul.d/base-nested-switch.yaml$
 
 - job:
     name: neutron-tempest-plugin-dynamic-routing
@@ -965,6 +973,7 @@
       - ^rally-jobs/.*$
       - ^vagrant/.*$
       - ^zuul.d/(queens|rocky|stein|train|ussuri)_jobs.yaml$
+      - ^zuul.d/base-nested-switch.yaml$
 
 - job:
     name: neutron-tempest-plugin-vpnaas
@@ -1023,6 +1032,7 @@
       - ^rally-jobs/.*$
       - ^vagrant/.*$
       - ^zuul.d/(queens|rocky|stein|train|ussuri)_jobs.yaml$
+      - ^zuul.d/base-nested-switch.yaml$
 
 - job:
     name: neutron-tempest-plugin-tap-as-a-service
@@ -1125,3 +1135,4 @@
       - ^rally-jobs/.*$
       - ^vagrant/.*$
       - ^zuul.d/(queens|rocky|stein|train|ussuri)_jobs.yaml$
+      - ^zuul.d/base-nested-switch.yaml$