diff --git a/tempest/api/compute/admin/test_servers_on_multinodes.py b/tempest/api/compute/admin/test_servers_on_multinodes.py
index 5cd98f4..bebc8c5 100644
--- a/tempest/api/compute/admin/test_servers_on_multinodes.py
+++ b/tempest/api/compute/admin/test_servers_on_multinodes.py
@@ -105,7 +105,7 @@
         asserts the servers are in the group and on different hosts.
         """
         hosts = self._create_servers_with_group('anti-affinity')
-        hostnames = hosts.values()
+        hostnames = list(hosts.values())
         self.assertNotEqual(hostnames[0], hostnames[1],
                             'Servers are on the same host: %s' % hosts)
 
@@ -120,6 +120,6 @@
         asserts the servers are in the group and on same host.
         """
         hosts = self._create_servers_with_group('affinity')
-        hostnames = hosts.values()
+        hostnames = list(hosts.values())
         self.assertEqual(hostnames[0], hostnames[1],
                          'Servers are on the different hosts: %s' % hosts)
diff --git a/tempest/api/compute/base.py b/tempest/api/compute/base.py
index 09dd409..624a99e 100644
--- a/tempest/api/compute/base.py
+++ b/tempest/api/compute/base.py
@@ -457,7 +457,7 @@
             else:
                 msg = ('When validation.connect_method equals floating, '
                        'validation_resources cannot be None')
-                raise exceptions.InvalidParam(invalid_param=msg)
+                raise lib_exc.InvalidParam(invalid_param=msg)
         elif CONF.validation.connect_method == 'fixed':
             addresses = server['addresses'][CONF.validation.network_for_ssh]
             for address in addresses:
diff --git a/tempest/common/utils/linux/remote_client.py b/tempest/common/utils/linux/remote_client.py
index 52ccfa9..49d9742 100644
--- a/tempest/common/utils/linux/remote_client.py
+++ b/tempest/common/utils/linux/remote_client.py
@@ -98,6 +98,7 @@
     def get_nic_name_by_ip(self, address):
         cmd = "ip -o addr | awk '/%s/ {print $2}'" % address
         nic = self.exec_command(cmd)
+        LOG.debug('(get_nic_name_by_ip) Command result: %s', nic)
         return nic.strip().strip(":").split('@')[0].lower()
 
     def get_dns_servers(self):
diff --git a/tempest/scenario/test_network_basic_ops.py b/tempest/scenario/test_network_basic_ops.py
index c11070c..a473cc9 100644
--- a/tempest/scenario/test_network_basic_ops.py
+++ b/tempest/scenario/test_network_basic_ops.py
@@ -544,6 +544,7 @@
             should_connect=True, msg="after updating "
             "admin_state_up of router to True")
 
+    @decorators.skip_because(bug='1813198')
     @decorators.idempotent_id('d8bb918e-e2df-48b2-97cd-b73c95450980')
     @testtools.skipIf(CONF.network.shared_physical_network,
                       'network isolation not available')
diff --git a/tempest/tests/cmd/test_run.py b/tempest/tests/cmd/test_run.py
index e159cdc..5091841 100644
--- a/tempest/tests/cmd/test_run.py
+++ b/tempest/tests/cmd/test_run.py
@@ -108,6 +108,27 @@
         subprocess.call(['stestr', 'init'])
         self.assertRunExit(['tempest', 'run', '--regex', 'passing'], 0)
 
+    def test_tempest_run_failing(self):
+        self.assertRunExit(['tempest', 'run', '--regex', 'failing'], 1)
+
+    def test_tempest_run_failing_with_stestr_repository(self):
+        subprocess.call(['stestr', 'init'])
+        self.assertRunExit(['tempest', 'run', '--regex', 'failing'], 1)
+
+    def test_tempest_run_blackregex_failing(self):
+        self.assertRunExit(['tempest', 'run', '--black-regex', 'failing'], 0)
+
+    def test_tempest_run_blackregex_failing_with_stestr_repository(self):
+        subprocess.call(['stestr', 'init'])
+        self.assertRunExit(['tempest', 'run', '--black-regex', 'failing'], 0)
+
+    def test_tempest_run_blackregex_passing(self):
+        self.assertRunExit(['tempest', 'run', '--black-regex', 'passing'], 1)
+
+    def test_tempest_run_blackregex_passing_with_stestr_repository(self):
+        subprocess.call(['stestr', 'init'])
+        self.assertRunExit(['tempest', 'run', '--black-regex', 'passing'], 1)
+
     def test_tempest_run_fails(self):
         self.assertRunExit(['tempest', 'run'], 1)