vcl: move tests to src/tests

Type: refactor

Signed-off-by: Florin Coras <fcoras@cisco.com>
Change-Id: If622dfcc6f98d90cac0487e6bb9eb8c0bb01cf85

1 files changed, 872 insertions, 0 deletions

diff --git a/test/test_vcl.py b/test/test_vcl.py
new file mode 100644
index 00000000000..64ca002946b
--- /dev/null
+++ b/test/test_vcl.py
@@ -0,0 +1,872 @@
+#!/usr/bin/env python3
+""" Vpp VCL tests """
+
+import unittest
+import os
+import subprocess
+import signal
+from framework import VppTestCase, VppTestRunner, running_extended_tests, \
+    Worker
+from vpp_ip_route import VppIpTable, VppIpRoute, VppRoutePath, FibPathProto
+
+iperf3 = '/usr/bin/iperf3'
+
+
+def have_app(app):
+    try:
+        subprocess.check_output([app, '-v'])
+    except (subprocess.CalledProcessError, OSError):
+        return False
+    return True
+
+
+_have_iperf3 = have_app(iperf3)
+
+
+class VCLAppWorker(Worker):
+    """ VCL Test Application Worker """
+
+    def __init__(self, build_dir, appname, executable_args, logger, env=None,
+                 *args, **kwargs):
+
+        if env is None:
+            env = {}
+        vcl_lib_dir = "%s/vpp/lib" % build_dir
+        if "iperf" in appname:
+            app = appname
+            env.update({'LD_PRELOAD':
+                        "%s/libvcl_ldpreload.so" % vcl_lib_dir})
+        elif "sock" in appname:
+            app = "%s/vpp/bin/%s" % (build_dir, appname)
+            env.update({'LD_PRELOAD':
+                        "%s/libvcl_ldpreload.so" % vcl_lib_dir})
+        else:
+            app = "%s/vpp/bin/%s" % (build_dir, appname)
+        self.args = [app] + executable_args
+        super(VCLAppWorker, self).__init__(self.args, logger, env,
+                                           *args, **kwargs)
+
+
+class VCLTestCase(VppTestCase):
+    """ VCL Test Class """
+    extra_vpp_punt_config = ["session", "{", "poll-main", "}"]
+
+    @classmethod
+    def setUpClass(cls):
+        super(VCLTestCase, cls).setUpClass()
+
+    @classmethod
+    def tearDownClass(cls):
+        super(VCLTestCase, cls).tearDownClass()
+
+    def setUp(self):
+        var = "VPP_BUILD_DIR"
+        self.build_dir = os.getenv(var, None)
+        if self.build_dir is None:
+            raise EnvironmentError("Environment variable `%s' not set" % var)
+        self.vppDebug = 'vpp_debug' in self.build_dir
+        self.server_addr = "127.0.0.1"
+        self.server_port = "22000"
+        self.server_args = [self.server_port]
+        self.server_ipv6_addr = "::1"
+        self.server_ipv6_args = ["-6", self.server_port]
+        self.timeout = 20
+        self.echo_phrase = "Hello, world! Jenny is a friend of mine."
+        self.pre_test_sleep = 0.3
+        self.post_test_sleep = 0.2
+
+        if os.path.isfile("/tmp/ldp_server_af_unix_socket"):
+            os.remove("/tmp/ldp_server_af_unix_socket")
+
+        super(VCLTestCase, self).setUp()
+
+    def cut_thru_setup(self):
+        self.vapi.session_enable_disable(is_enable=1)
+
+    def cut_thru_tear_down(self):
+        self.vapi.session_enable_disable(is_enable=0)
+
+    def cut_thru_test(self, server_app, server_args, client_app, client_args):
+        self.env = {'VCL_VPP_API_SOCKET': self.get_api_sock_path(),
+                    'VCL_APP_SCOPE_LOCAL': "true"}
+        worker_server = VCLAppWorker(self.build_dir, server_app, server_args,
+                                     self.logger, self.env)
+        worker_server.start()
+        self.sleep(self.pre_test_sleep)
+        worker_client = VCLAppWorker(self.build_dir, client_app, client_args,
+                                     self.logger, self.env)
+        worker_client.start()
+        worker_client.join(self.timeout)
+        try:
+            self.validateResults(worker_client, worker_server, self.timeout)
+        except Exception as error:
+            self.fail("Failed with %s" % error)
+        self.sleep(self.post_test_sleep)
+
+    def thru_host_stack_setup(self):
+        self.vapi.session_enable_disable(is_enable=1)
+        self.create_loopback_interfaces(2)
+
+        table_id = 1
+
+        for i in self.lo_interfaces:
+            i.admin_up()
+
+            if table_id != 0:
+                tbl = VppIpTable(self, table_id)
+                tbl.add_vpp_config()
+
+            i.set_table_ip4(table_id)
+            i.config_ip4()
+            table_id += 1
+
+        # Configure namespaces
+        self.vapi.app_namespace_add_del(namespace_id="1", secret=1234,
+                                        sw_if_index=self.loop0.sw_if_index)
+        self.vapi.app_namespace_add_del(namespace_id="2", secret=5678,
+                                        sw_if_index=self.loop1.sw_if_index)
+
+        # Add inter-table routes
+        ip_t01 = VppIpRoute(self, self.loop1.local_ip4, 32,
+                            [VppRoutePath("0.0.0.0",
+                                          0xffffffff,
+                                          nh_table_id=2)], table_id=1)
+        ip_t10 = VppIpRoute(self, self.loop0.local_ip4, 32,
+                            [VppRoutePath("0.0.0.0",
+                                          0xffffffff,
+                                          nh_table_id=1)], table_id=2)
+        ip_t01.add_vpp_config()
+        ip_t10.add_vpp_config()
+        self.logger.debug(self.vapi.cli("show ip fib"))
+
+    def thru_host_stack_tear_down(self):
+        for i in self.lo_interfaces:
+            i.unconfig_ip4()
+            i.set_table_ip4(0)
+            i.admin_down()
+
+    def thru_host_stack_ipv6_setup(self):
+        self.vapi.session_enable_disable(is_enable=1)
+        self.create_loopback_interfaces(2)
+
+        table_id = 1
+
+        for i in self.lo_interfaces:
+            i.admin_up()
+
+            tbl = VppIpTable(self, table_id, is_ip6=1)
+            tbl.add_vpp_config()
+
+            i.set_table_ip6(table_id)
+            i.config_ip6()
+            table_id += 1
+
+        # Configure namespaces
+        self.vapi.app_namespace_add_del(namespace_id="1", secret=1234,
+                                        sw_if_index=self.loop0.sw_if_index)
+        self.vapi.app_namespace_add_del(namespace_id="2", secret=5678,
+                                        sw_if_index=self.loop1.sw_if_index)
+
+        # Add inter-table routes
+        ip_t01 = VppIpRoute(self, self.loop1.local_ip6, 128,
+                            [VppRoutePath("::0", 0xffffffff,
+                                          nh_table_id=2)],
+                            table_id=1)
+        ip_t10 = VppIpRoute(self, self.loop0.local_ip6, 128,
+                            [VppRoutePath("::0", 0xffffffff,
+                                          nh_table_id=1)],
+                            table_id=2)
+        ip_t01.add_vpp_config()
+        ip_t10.add_vpp_config()
+        self.logger.debug(self.vapi.cli("show interface addr"))
+        self.logger.debug(self.vapi.cli("show ip6 fib"))
+
+    def thru_host_stack_ipv6_tear_down(self):
+        for i in self.lo_interfaces:
+            i.unconfig_ip6()
+            i.set_table_ip6(0)
+            i.admin_down()
+
+        self.vapi.session_enable_disable(is_enable=0)
+
+    @unittest.skipUnless(_have_iperf3, "'%s' not found, Skipping.")
+    def thru_host_stack_test(self, server_app, server_args,
+                             client_app, client_args):
+        self.env = {'VCL_VPP_API_SOCKET': self.get_api_sock_path(),
+                    'VCL_APP_SCOPE_GLOBAL': "true",
+                    'VCL_APP_NAMESPACE_ID': "1",
+                    'VCL_APP_NAMESPACE_SECRET': "1234"}
+
+        worker_server = VCLAppWorker(self.build_dir, server_app, server_args,
+                                     self.logger, self.env)
+        worker_server.start()
+        self.sleep(self.pre_test_sleep)
+
+        self.env.update({'VCL_APP_NAMESPACE_ID': "2",
+                         'VCL_APP_NAMESPACE_SECRET': "5678"})
+        worker_client = VCLAppWorker(self.build_dir, client_app, client_args,
+                                     self.logger, self.env)
+        worker_client.start()
+        worker_client.join(self.timeout)
+
+        try:
+            self.validateResults(worker_client, worker_server, self.timeout)
+        except Exception as error:
+            self.fail("Failed with %s" % error)
+        self.sleep(self.post_test_sleep)
+
+    def validateResults(self, worker_client, worker_server, timeout):
+        if worker_server.process is None:
+            raise RuntimeError('worker_server is not running.')
+        if os.path.isdir('/proc/{}'.format(worker_server.process.pid)):
+            self.logger.info("Killing server worker process (pid %d)" %
+                             worker_server.process.pid)
+            os.killpg(os.getpgid(worker_server.process.pid), signal.SIGTERM)
+            worker_server.join()
+        self.logger.info("Client worker result is `%s'" % worker_client.result)
+        error = False
+        if worker_client.result is None:
+            try:
+                error = True
+                self.logger.error(
+                    "Timeout: %ss! Killing client worker process (pid %d)" %
+                    (timeout, worker_client.process.pid))
+                os.killpg(os.getpgid(worker_client.process.pid),
+                          signal.SIGKILL)
+                worker_client.join()
+            except OSError:
+                self.logger.debug(
+                    "Couldn't kill client worker process")
+                raise
+        if error:
+            raise RuntimeError(
+                "Timeout! Client worker did not finish in %ss" % timeout)
+        self.assert_equal(worker_client.result, 0, "Binary test return code")
+
+
+class LDPCutThruTestCase(VCLTestCase):
+    """ LDP Cut Thru Tests """
+
+    @classmethod
+    def setUpClass(cls):
+        super(LDPCutThruTestCase, cls).setUpClass()
+
+    @classmethod
+    def tearDownClass(cls):
+        super(LDPCutThruTestCase, cls).tearDownClass()
+
+    def setUp(self):
+        super(LDPCutThruTestCase, self).setUp()
+
+        self.cut_thru_setup()
+        self.client_echo_test_args = ["-E", self.echo_phrase, "-X",
+                                      self.server_addr, self.server_port]
+        self.client_iperf3_timeout = 20
+        self.client_iperf3_args = ["-4", "-t 2", "-c", self.server_addr]
+        self.server_iperf3_args = ["-4", "-s"]
+        self.client_uni_dir_nsock_timeout = 20
+        self.client_uni_dir_nsock_test_args = ["-N", "1000", "-U", "-X",
+                                               "-I", "2",
+                                               self.server_addr,
+                                               self.server_port]
+        self.client_bi_dir_nsock_timeout = 20
+        self.client_bi_dir_nsock_test_args = ["-N", "1000", "-B", "-X",
+                                              "-I", "2",
+                                              self.server_addr,
+                                              self.server_port]
+
+    def tearDown(self):
+        super(LDPCutThruTestCase, self).tearDown()
+        self.cut_thru_tear_down()
+
+    def show_commands_at_teardown(self):
+        self.logger.debug(self.vapi.cli("show session verbose 2"))
+        self.logger.debug(self.vapi.cli("show app mq"))
+
+    @unittest.skipUnless(running_extended_tests, "part of extended tests")
+    def test_ldp_cut_thru_echo(self):
+        """ run LDP cut thru echo test """
+
+        self.cut_thru_test("sock_test_server", self.server_args,
+                           "sock_test_client", self.client_echo_test_args)
+
+    @unittest.skipUnless(_have_iperf3, "'%s' not found, Skipping.")
+    def test_ldp_cut_thru_iperf3(self):
+        """ run LDP cut thru iperf3 test """
+
+        self.timeout = self.client_iperf3_timeout
+        self.cut_thru_test(iperf3, self.server_iperf3_args,
+                           iperf3, self.client_iperf3_args)
+
+    @unittest.skipUnless(running_extended_tests, "part of extended tests")
+    def test_ldp_cut_thru_uni_dir_nsock(self):
+        """ run LDP cut thru uni-directional (multiple sockets) test """
+
+        self.timeout = self.client_uni_dir_nsock_timeout
+        self.cut_thru_test("sock_test_server", self.server_args,
+                           "sock_test_client",
+                           self.client_uni_dir_nsock_test_args)
+
+    @unittest.skipUnless(running_extended_tests, "part of extended tests")
+    @unittest.skip("sock test apps need to be improved")
+    def test_ldp_cut_thru_bi_dir_nsock(self):
+        """ run LDP cut thru bi-directional (multiple sockets) test """
+
+        self.timeout = self.client_bi_dir_nsock_timeout
+        self.cut_thru_test("sock_test_server", self.server_args,
+                           "sock_test_client",
+                           self.client_bi_dir_nsock_test_args)
+
+
+class VCLCutThruTestCase(VCLTestCase):
+    """ VCL Cut Thru Tests """
+
+    @classmethod
+    def setUpClass(cls):
+        super(VCLCutThruTestCase, cls).setUpClass()
+
+    @classmethod
+    def tearDownClass(cls):
+        super(VCLCutThruTestCase, cls).tearDownClass()
+
+    def setUp(self):
+        super(VCLCutThruTestCase, self).setUp()
+
+        self.cut_thru_setup()
+        self.client_echo_test_args = ["-E", self.echo_phrase, "-X",
+                                      self.server_addr, self.server_port]
+
+        self.client_uni_dir_nsock_timeout = 20
+        self.client_uni_dir_nsock_test_args = ["-N", "1000", "-U", "-X",
+                                               "-I", "2",
+                                               self.server_addr,
+                                               self.server_port]
+        self.client_bi_dir_nsock_timeout = 20
+        self.client_bi_dir_nsock_test_args = ["-N", "1000", "-B", "-X",
+                                              "-I", "2",
+                                              self.server_addr,
+                                              self.server_port]
+
+    def tearDown(self):
+        super(VCLCutThruTestCase, self).tearDown()
+
+    def show_commands_at_teardown(self):
+        self.logger.debug(self.vapi.cli("show session verbose 2"))
+        self.logger.debug(self.vapi.cli("show app mq"))
+
+    def test_vcl_cut_thru_echo(self):
+        """ run VCL cut thru echo test """
+
+        self.cut_thru_test("vcl_test_server", self.server_args,
+                           "vcl_test_client", self.client_echo_test_args)
+
+    def test_vcl_cut_thru_uni_dir_nsock(self):
+        """ run VCL cut thru uni-directional (multiple sockets) test """
+
+        self.timeout = self.client_uni_dir_nsock_timeout
+        self.cut_thru_test("vcl_test_server", self.server_args,
+                           "vcl_test_client",
+                           self.client_uni_dir_nsock_test_args)
+
+    def test_vcl_cut_thru_bi_dir_nsock(self):
+        """ run VCL cut thru bi-directional (multiple sockets) test """
+
+        self.timeout = self.client_bi_dir_nsock_timeout
+        self.cut_thru_test("vcl_test_server", self.server_args,
+                           "vcl_test_client",
+                           self.client_bi_dir_nsock_test_args)
+
+
+class VCLThruHostStackEcho(VCLTestCase):
+    """ VCL Thru Host Stack Echo """
+
+    @classmethod
+    def setUpClass(cls):
+        super(VCLThruHostStackEcho, cls).setUpClass()
+
+    @classmethod
+    def tearDownClass(cls):
+        super(VCLThruHostStackEcho, cls).tearDownClass()
+
+    def setUp(self):
+        super(VCLThruHostStackEcho, self).setUp()
+
+        self.thru_host_stack_setup()
+        self.client_bi_dir_nsock_timeout = 20
+        self.client_bi_dir_nsock_test_args = ["-N", "1000", "-B", "-X",
+                                              "-I", "2",
+                                              self.loop0.local_ip4,
+                                              self.server_port]
+        self.client_echo_test_args = ["-E", self.echo_phrase, "-X",
+                                      self.loop0.local_ip4,
+                                      self.server_port]
+
+    def tearDown(self):
+        self.thru_host_stack_tear_down()
+        super(VCLThruHostStackEcho, self).tearDown()
+
+    def show_commands_at_teardown(self):
+        self.logger.debug(self.vapi.cli("show app server"))
+        self.logger.debug(self.vapi.cli("show session verbose"))
+        self.logger.debug(self.vapi.cli("show app mq"))
+
+
+class VCLThruHostStackTLS(VCLTestCase):
+    """ VCL Thru Host Stack TLS """
+
+    @classmethod
+    def setUpClass(cls):
+        super(VCLThruHostStackTLS, cls).setUpClass()
+
+    @classmethod
+    def tearDownClass(cls):
+        super(VCLThruHostStackTLS, cls).tearDownClass()
+
+    def setUp(self):
+        super(VCLThruHostStackTLS, self).setUp()
+
+        self.thru_host_stack_setup()
+        self.client_uni_dir_tls_timeout = 20
+        self.server_tls_args = ["-L", self.server_port]
+        self.client_uni_dir_tls_test_args = ["-N", "1000", "-U", "-X", "-L",
+                                             self.loop0.local_ip4,
+                                             self.server_port]
+
+    def test_vcl_thru_host_stack_tls_uni_dir(self):
+        """ run VCL thru host stack uni-directional TLS test """
+
+        self.timeout = self.client_uni_dir_tls_timeout
+        self.thru_host_stack_test("vcl_test_server", self.server_tls_args,
+                                  "vcl_test_client",
+                                  self.client_uni_dir_tls_test_args)
+
+    def tearDown(self):
+        self.thru_host_stack_tear_down()
+        super(VCLThruHostStackTLS, self).tearDown()
+
+    def show_commands_at_teardown(self):
+        self.logger.debug(self.vapi.cli("show app server"))
+        self.logger.debug(self.vapi.cli("show session verbose 2"))
+        self.logger.debug(self.vapi.cli("show app mq"))
+
+
+class VCLThruHostStackBidirNsock(VCLTestCase):
+    """ VCL Thru Host Stack Bidir Nsock """
+
+    @classmethod
+    def setUpClass(cls):
+        super(VCLThruHostStackBidirNsock, cls).setUpClass()
+
+    @classmethod
+    def tearDownClass(cls):
+        super(VCLThruHostStackBidirNsock, cls).tearDownClass()
+
+    def setUp(self):
+        super(VCLThruHostStackBidirNsock, self).setUp()
+
+        self.thru_host_stack_setup()
+        self.client_bi_dir_nsock_timeout = 20
+        self.client_bi_dir_nsock_test_args = ["-N", "1000", "-B", "-X",
+                                              "-I", "2",
+                                              self.loop0.local_ip4,
+                                              self.server_port]
+        self.client_echo_test_args = ["-E", self.echo_phrase, "-X",
+                                      self.loop0.local_ip4,
+                                      self.server_port]
+
+    def tearDown(self):
+        self.thru_host_stack_tear_down()
+        super(VCLThruHostStackBidirNsock, self).tearDown()
+
+    def show_commands_at_teardown(self):
+        self.logger.debug(self.vapi.cli("show session verbose 2"))
+        self.logger.debug(self.vapi.cli("show app mq"))
+
+    def test_vcl_thru_host_stack_bi_dir_nsock(self):
+        """ run VCL thru host stack bi-directional (multiple sockets) test """
+
+        self.timeout = self.client_bi_dir_nsock_timeout
+        self.thru_host_stack_test("vcl_test_server", self.server_args,
+                                  "vcl_test_client",
+                                  self.client_bi_dir_nsock_test_args)
+
+
+class LDPThruHostStackBidirNsock(VCLTestCase):
+    """ LDP Thru Host Stack Bidir Nsock """
+
+    @classmethod
+    def setUpClass(cls):
+        super(LDPThruHostStackBidirNsock, cls).setUpClass()
+
+    @classmethod
+    def tearDownClass(cls):
+        super(LDPThruHostStackBidirNsock, cls).tearDownClass()
+
+    def setUp(self):
+        super(LDPThruHostStackBidirNsock, self).setUp()
+
+        self.thru_host_stack_setup()
+        self.client_bi_dir_nsock_timeout = 20
+        self.client_bi_dir_nsock_test_args = ["-N", "1000", "-B", "-X",
+                                              # OUCH! Host Stack Bug?
+                                              # Only fails when running
+                                              # 'make test TEST_JOBS=auto'
+                                              # or TEST_JOBS > 1
+                                              # "-I", "2",
+                                              self.loop0.local_ip4,
+                                              self.server_port]
+
+    def tearDown(self):
+        self.thru_host_stack_tear_down()
+        super(LDPThruHostStackBidirNsock, self).tearDown()
+
+    def show_commands_at_teardown(self):
+        self.logger.debug(self.vapi.cli("show session verbose 2"))
+        self.logger.debug(self.vapi.cli("show app mq"))
+
+    def test_ldp_thru_host_stack_bi_dir_nsock(self):
+        """ run LDP thru host stack bi-directional (multiple sockets) test """
+
+        self.timeout = self.client_bi_dir_nsock_timeout
+        self.thru_host_stack_test("sock_test_server", self.server_args,
+                                  "sock_test_client",
+                                  self.client_bi_dir_nsock_test_args)
+
+
+class LDPThruHostStackNsock(VCLTestCase):
+    """ LDP Thru Host Stack Nsock """
+
+    @classmethod
+    def setUpClass(cls):
+        super(LDPThruHostStackNsock, cls).setUpClass()
+
+    @classmethod
+    def tearDownClass(cls):
+        super(LDPThruHostStackNsock, cls).tearDownClass()
+
+    def setUp(self):
+        super(LDPThruHostStackNsock, self).setUp()
+
+        self.thru_host_stack_setup()
+        if self.vppDebug:
+            self.client_uni_dir_nsock_timeout = 20
+            self.numSockets = "2"
+        else:
+            self.client_uni_dir_nsock_timeout = 20
+            self.numSockets = "5"
+
+        self.client_uni_dir_nsock_test_args = ["-N", "1000", "-U", "-X",
+                                               "-I", self.numSockets,
+                                               self.loop0.local_ip4,
+                                               self.server_port]
+
+    def tearDown(self):
+        self.thru_host_stack_tear_down()
+        super(LDPThruHostStackNsock, self).tearDown()
+
+    def test_ldp_thru_host_stack_uni_dir_nsock(self):
+        """ run LDP thru host stack uni-directional (multiple sockets) test """
+
+        self.timeout = self.client_uni_dir_nsock_timeout
+        self.thru_host_stack_test("sock_test_server", self.server_args,
+                                  "sock_test_client",
+                                  self.client_uni_dir_nsock_test_args)
+
+
+class VCLThruHostStackNsock(VCLTestCase):
+    """ VCL Thru Host Stack Nsock """
+
+    @classmethod
+    def setUpClass(cls):
+        super(VCLThruHostStackNsock, cls).setUpClass()
+
+    @classmethod
+    def tearDownClass(cls):
+        super(VCLThruHostStackNsock, cls).tearDownClass()
+
+    def setUp(self):
+        super(VCLThruHostStackNsock, self).setUp()
+
+        self.thru_host_stack_setup()
+        if self.vppDebug:
+            self.client_uni_dir_nsock_timeout = 20
+            self.numSockets = "2"
+        else:
+            self.client_uni_dir_nsock_timeout = 20
+            self.numSockets = "5"
+
+        self.client_uni_dir_nsock_test_args = ["-N", "1000", "-U", "-X",
+                                               "-I", self.numSockets,
+                                               self.loop0.local_ip4,
+                                               self.server_port]
+
+    def tearDown(self):
+        self.thru_host_stack_tear_down()
+        super(VCLThruHostStackNsock, self).tearDown()
+
+    def test_vcl_thru_host_stack_uni_dir_nsock(self):
+        """ run VCL thru host stack uni-directional (multiple sockets) test """
+
+        self.timeout = self.client_uni_dir_nsock_timeout
+        self.thru_host_stack_test("vcl_test_server", self.server_args,
+                                  "vcl_test_client",
+                                  self.client_uni_dir_nsock_test_args)
+
+
+class LDPThruHostStackIperf(VCLTestCase):
+    """ LDP Thru Host Stack Iperf  """
+
+    @classmethod
+    def setUpClass(cls):
+        super(LDPThruHostStackIperf, cls).setUpClass()
+
+    @classmethod
+    def tearDownClass(cls):
+        super(LDPThruHostStackIperf, cls).tearDownClass()
+
+    def setUp(self):
+        super(LDPThruHostStackIperf, self).setUp()
+
+        self.thru_host_stack_setup()
+        self.client_iperf3_timeout = 20
+        self.client_iperf3_args = ["-4", "-t 2", "-c", self.loop0.local_ip4]
+        self.server_iperf3_args = ["-4", "-s"]
+
+    def tearDown(self):
+        self.thru_host_stack_tear_down()
+        super(LDPThruHostStackIperf, self).tearDown()
+
+    def show_commands_at_teardown(self):
+        self.logger.debug(self.vapi.cli("show session verbose 2"))
+        self.logger.debug(self.vapi.cli("show app mq"))
+
+    @unittest.skipUnless(_have_iperf3, "'%s' not found, Skipping.")
+    def test_ldp_thru_host_stack_iperf3(self):
+        """ run LDP thru host stack iperf3 test """
+
+        self.timeout = self.client_iperf3_timeout
+        self.thru_host_stack_test(iperf3, self.server_iperf3_args,
+                                  iperf3, self.client_iperf3_args)
+
+
+class LDPThruHostStackIperfUdp(VCLTestCase):
+    """ LDP Thru Host Stack Iperf UDP """
+
+    @classmethod
+    def setUpClass(cls):
+        super(LDPThruHostStackIperfUdp, cls).setUpClass()
+
+    @classmethod
+    def tearDownClass(cls):
+        super(LDPThruHostStackIperfUdp, cls).tearDownClass()
+
+    def setUp(self):
+        super(LDPThruHostStackIperfUdp, self).setUp()
+
+        self.thru_host_stack_setup()
+        self.client_iperf3_timeout = 20
+        self.client_iperf3_args = ["-4", "-t 2", "-u", "-l 1400",
+                                   "-c", self.loop0.local_ip4]
+        self.server_iperf3_args = ["-4", "-s"]
+
+    def tearDown(self):
+        self.thru_host_stack_tear_down()
+        super(LDPThruHostStackIperfUdp, self).tearDown()
+
+    def show_commands_at_teardown(self):
+        self.logger.debug(self.vapi.cli("show session verbose 2"))
+        self.logger.debug(self.vapi.cli("show app mq"))
+
+    @unittest.skipUnless(_have_iperf3, "'%s' not found, Skipping.")
+    def test_ldp_thru_host_stack_iperf3_udp(self):
+        """ run LDP thru host stack iperf3 UDP test """
+
+        self.timeout = self.client_iperf3_timeout
+        self.thru_host_stack_test(iperf3, self.server_iperf3_args,
+                                  iperf3, self.client_iperf3_args)
+
+
+class LDPIpv6CutThruTestCase(VCLTestCase):
+    """ LDP IPv6 Cut Thru Tests """
+
+    @classmethod
+    def setUpClass(cls):
+        super(LDPIpv6CutThruTestCase, cls).setUpClass()
+
+    @classmethod
+    def tearDownClass(cls):
+        super(LDPIpv6CutThruTestCase, cls).tearDownClass()
+
+    def show_commands_at_teardown(self):
+        self.logger.debug(self.vapi.cli("show session verbose 2"))
+        self.logger.debug(self.vapi.cli("show app mq"))
+
+    def setUp(self):
+        super(LDPIpv6CutThruTestCase, self).setUp()
+
+        self.cut_thru_setup()
+        self.client_iperf3_timeout = 20
+        self.client_uni_dir_nsock_timeout = 20
+        self.client_bi_dir_nsock_timeout = 20
+        self.client_ipv6_echo_test_args = ["-6", "-E", self.echo_phrase, "-X",
+                                           self.server_ipv6_addr,
+                                           self.server_port]
+        self.client_ipv6_iperf3_args = ["-6", "-t 2", "-c",
+                                        self.server_ipv6_addr]
+        self.server_ipv6_iperf3_args = ["-6", "-s"]
+        self.client_ipv6_uni_dir_nsock_test_args = ["-N", "1000", "-U", "-X",
+                                                    "-6",
+                                                    "-I", "2",
+                                                    self.server_ipv6_addr,
+                                                    self.server_port]
+        self.client_ipv6_bi_dir_nsock_test_args = ["-N", "1000", "-B", "-X",
+                                                   "-6",
+                                                   "-I", "2",
+                                                   self.server_ipv6_addr,
+                                                   self.server_port]
+
+    def tearDown(self):
+        super(LDPIpv6CutThruTestCase, self).tearDown()
+        self.cut_thru_tear_down()
+
+    def test_ldp_ipv6_cut_thru_echo(self):
+        """ run LDP IPv6 cut thru echo test """
+
+        self.cut_thru_test("sock_test_server",
+                           self.server_ipv6_args,
+                           "sock_test_client",
+                           self.client_ipv6_echo_test_args)
+
+    @unittest.skipUnless(_have_iperf3, "'%s' not found, Skipping.")
+    @unittest.skipUnless(running_extended_tests, "part of extended tests")
+    def test_ldp_ipv6_cut_thru_iperf3(self):
+        """ run LDP IPv6 cut thru iperf3 test """
+
+        self.timeout = self.client_iperf3_timeout
+        self.cut_thru_test(iperf3, self.server_ipv6_iperf3_args,
+                           iperf3, self.client_ipv6_iperf3_args)
+
+    @unittest.skipUnless(running_extended_tests, "part of extended tests")
+    def test_ldp_ipv6_cut_thru_uni_dir_nsock(self):
+        """ run LDP IPv6 cut thru uni-directional (multiple sockets) test """
+
+        self.timeout = self.client_uni_dir_nsock_timeout
+        self.cut_thru_test("sock_test_server", self.server_ipv6_args,
+                           "sock_test_client",
+                           self.client_ipv6_uni_dir_nsock_test_args)
+
+    @unittest.skipUnless(running_extended_tests, "part of extended tests")
+    @unittest.skip("sock test apps need to be improved")
+    def test_ldp_ipv6_cut_thru_bi_dir_nsock(self):
+        """ run LDP IPv6 cut thru bi-directional (multiple sockets) test """
+
+        self.timeout = self.client_bi_dir_nsock_timeout
+        self.cut_thru_test("sock_test_server", self.server_ipv6_args,
+                           "sock_test_client",
+                           self.client_ipv6_bi_dir_nsock_test_args)
+
+
+class VCLIpv6CutThruTestCase(VCLTestCase):
+    """ VCL IPv6 Cut Thru Tests """
+
+    @classmethod
+    def setUpClass(cls):
+        super(VCLIpv6CutThruTestCase, cls).setUpClass()
+
+    @classmethod
+    def tearDownClass(cls):
+        super(VCLIpv6CutThruTestCase, cls).tearDownClass()
+
+    def show_commands_at_teardown(self):
+        self.logger.debug(self.vapi.cli("show session verbose 2"))
+        self.logger.debug(self.vapi.cli("show app mq"))
+
+    def setUp(self):
+        super(VCLIpv6CutThruTestCase, self).setUp()
+
+        self.cut_thru_setup()
+        self.client_uni_dir_nsock_timeout = 20
+        self.client_bi_dir_nsock_timeout = 20
+        self.client_ipv6_echo_test_args = ["-6", "-E", self.echo_phrase, "-X",
+                                           self.server_ipv6_addr,
+                                           self.server_port]
+        self.client_ipv6_uni_dir_nsock_test_args = ["-N", "1000", "-U", "-X",
+                                                    "-6",
+                                                    "-I", "2",
+                                                    self.server_ipv6_addr,
+                                                    self.server_port]
+        self.client_ipv6_bi_dir_nsock_test_args = ["-N", "1000", "-B", "-X",
+                                                   "-6",
+                                                   "-I", "2",
+                                                   self.server_ipv6_addr,
+                                                   self.server_port]
+
+    def tearDown(self):
+        super(VCLIpv6CutThruTestCase, self).tearDown()
+        self.cut_thru_tear_down()
+
+    def show_commands_at_teardown(self):
+        self.logger.debug(self.vapi.cli("show session verbose 2"))
+        self.logger.debug(self.vapi.cli("show app mq"))
+
+    def test_vcl_ipv6_cut_thru_echo(self):
+        """ run VCL IPv6 cut thru echo test """
+
+        self.cut_thru_test("vcl_test_server",
+                           self.server_ipv6_args,
+                           "vcl_test_client",
+                           self.client_ipv6_echo_test_args)
+
+    @unittest.skipUnless(running_extended_tests, "part of extended tests")
+    def test_vcl_ipv6_cut_thru_uni_dir_nsock(self):
+        """ run VCL IPv6 cut thru uni-directional (multiple sockets) test """
+
+        self.timeout = self.client_uni_dir_nsock_timeout
+        self.cut_thru_test("vcl_test_server", self.server_ipv6_args,
+                           "vcl_test_client",
+                           self.client_ipv6_uni_dir_nsock_test_args)
+
+    @unittest.skipUnless(running_extended_tests, "part of extended tests")
+    def test_vcl_ipv6_cut_thru_bi_dir_nsock(self):
+        """ run VCL IPv6 cut thru bi-directional (multiple sockets) test """
+
+        self.timeout = self.client_bi_dir_nsock_timeout
+        self.cut_thru_test("vcl_test_server", self.server_ipv6_args,
+                           "vcl_test_client",
+                           self.client_ipv6_bi_dir_nsock_test_args)
+
+
+class VCLIpv6ThruHostStackEcho(VCLTestCase):
+    """ VCL IPv6 Thru Host Stack Echo """
+
+    @classmethod
+    def setUpClass(cls):
+        super(VCLIpv6ThruHostStackEcho, cls).setUpClass()
+
+    @classmethod
+    def tearDownClass(cls):
+        super(VCLIpv6ThruHostStackEcho, cls).tearDownClass()
+
+    def setUp(self):
+        super(VCLIpv6ThruHostStackEcho, self).setUp()
+
+        self.thru_host_stack_ipv6_setup()
+        self.client_ipv6_echo_test_args = ["-6", "-E", self.echo_phrase, "-X",
+                                           self.loop0.local_ip6,
+                                           self.server_port]
+
+    def tearDown(self):
+        self.thru_host_stack_ipv6_tear_down()
+        super(VCLIpv6ThruHostStackEcho, self).tearDown()
+
+    def test_vcl_ipv6_thru_host_stack_echo(self):
+        """ run VCL IPv6 thru host stack echo test """
+
+        self.thru_host_stack_test("vcl_test_server",
+                                  self.server_ipv6_args,
+                                  "vcl_test_client",
+                                  self.client_ipv6_echo_test_args)
+
+
+if __name__ == '__main__':
+    unittest.main(testRunner=VppTestRunner)