diff --git a/tests/common/gu_utils.py b/tests/common/gu_utils.py
index 07435568d5b..c9c7865f649 100644
--- a/tests/common/gu_utils.py
+++ b/tests/common/gu_utils.py
@@ -74,7 +74,9 @@ def apply_patch(duthost, json_data, dest_file):
         json_data: Source json patch to apply
         dest_file: Destination file on duthost
     """
-    duthost.copy(content=json.dumps(json_data, indent=4), dest=dest_file)
+    patch_content = json.dumps(json_data, indent=4)
+    duthost.copy(content=patch_content, dest=dest_file)
+    logger.debug("Patch Content: {}".format(patch_content))
 
     cmds = 'config apply-patch {}'.format(dest_file)
 
@@ -512,6 +514,56 @@ def expect_acl_rule_removed(duthost, rulename, setup):
         pytest_assert(removed, "'{}' showed a rule, this following rule should have been removed".format(cmds))
 
 
+def save_backup_test_config(duthost, file_postfix="bkp"):
+    """Save test env before a test case starts.
+    Back up the existing config_db.json file(s).
+    Args:
+        duthost: Device Under Test (DUT)
+        file_postfix: Postfix string to be used for the backup files.
+    Returns:
+        None.
+    """
+    CONFIG_DB = "/etc/sonic/config_db.json"
+    CONFIG_DB_BACKUP = "/etc/sonic/config_db.json.{}".format(file_postfix)
+
+    logger.info("Backup {} to {} on {}".format(
+        CONFIG_DB, CONFIG_DB_BACKUP, duthost.hostname))
+    duthost.shell("cp {} {}".format(CONFIG_DB, CONFIG_DB_BACKUP))
+    if duthost.is_multi_asic:
+        for n in range(len(duthost.asics)):
+            asic_config_db = "/etc/sonic/config_db{}.json".format(n)
+            asic_config_db_backup = "/etc/sonic/config_db{}.json.{}".format(n, file_postfix)
+            logger.info("Backup {} to {} on {}".format(
+                asic_config_db, asic_config_db_backup, duthost.hostname))
+            duthost.shell("cp {} {}".format(asic_config_db, asic_config_db_backup))
+
+
+def restore_backup_test_config(duthost, file_postfix="bkp", config_reload=True):
+    """Restore test env after a test case finishes.
+    Args:
+        duthost: Device Under Test (DUT)
+        file_postfix: Postfix string to be used for restoring the saved backup files.
+    Returns:
+        None.
+    """
+    CONFIG_DB = "/etc/sonic/config_db.json"
+    CONFIG_DB_BACKUP = "/etc/sonic/config_db.json.{}".format(file_postfix)
+
+    logger.info("Restore {} with {} on {}".format(
+        CONFIG_DB, CONFIG_DB_BACKUP, duthost.hostname))
+    duthost.shell("mv {} {}".format(CONFIG_DB_BACKUP, CONFIG_DB))
+    if duthost.is_multi_asic:
+        for n in range(len(duthost.asics)):
+            asic_config_db = "/etc/sonic/config_db{}.json".format(n)
+            asic_config_db_backup = "/etc/sonic/config_db{}.json.{}".format(n, file_postfix)
+            logger.info("Restore {} with {} on {}".format(
+                asic_config_db, asic_config_db_backup, duthost.hostname))
+            duthost.shell("mv {} {}".format(asic_config_db_backup, asic_config_db))
+
+    if config_reload:
+        config_reload(duthost)
+
+
 def get_bgp_speaker_runningconfig(duthost):
     """ Get bgp speaker config that contains src_address and ip_range
 
diff --git a/tests/common/plugins/conditional_mark/tests_mark_conditions.yaml b/tests/common/plugins/conditional_mark/tests_mark_conditions.yaml
index 2136552a0a1..fa91664a987 100644
--- a/tests/common/plugins/conditional_mark/tests_mark_conditions.yaml
+++ b/tests/common/plugins/conditional_mark/tests_mark_conditions.yaml
@@ -801,9 +801,9 @@ fib/test_fib.py::test_ipinip_hash:
 #######################################
 generic_config_updater:
   skip:
-    reason: 'generic_config_updater is not a supported feature for T2'
+    reason: 'generic_config_updater is not a supported feature for T2 platform on older releases than 202205.'
     conditions:
-      - "'t2' in topo_name"
+      - "('t2' in topo_name) and (release in ['201811', '201911', '202012', '202106', '202111'])"
 
 generic_config_updater/test_bgp_prefix.py::test_bgp_prefix_tc1_suite[empty]:
   skip:
diff --git a/tests/conftest.py b/tests/conftest.py
index bff93f580c3..93a9fdff6eb 100644
--- a/tests/conftest.py
+++ b/tests/conftest.py
@@ -587,6 +587,29 @@ def rand_one_dut_lossless_prio(request):
     return lossless_prio_list[0]
 
 
+@pytest.fixture(scope="module")
+def rand_asic_namespace(request, duthosts, rand_one_dut_hostname):
+    """
+    Return the randomly selected asic namespace in case of multi-asic duthost.
+    """
+
+    if "rand_one_dut_front_end_hostname" in request.fixturenames:
+        dut_hostname = request.getfixturevalue("rand_one_dut_front_end_hostname")
+    else:
+        dut_hostname = rand_one_dut_hostname
+
+    duthost = duthosts[dut_hostname]
+
+    asic_namespace = None
+    asic_index = None
+    if duthost.is_multi_asic:
+        namespace_list = duthost.get_asic_namespace_list()
+        asic_namespace = random.choice(namespace_list)
+        asic_index = duthost.get_asic_id_from_namespace(asic_namespace)
+
+    return asic_namespace, asic_index
+
+
 @pytest.fixture(scope="module", autouse=True)
 def reset_critical_services_list(duthosts):
     """
@@ -2204,7 +2227,7 @@ def dut_test_params_qos(duthosts, tbinfo, ptfhost, get_src_dst_asic_and_duts, lo
     yield rtn_dict
 
 
-@ pytest.fixture(scope='class')
+@pytest.fixture(scope='class')
 def dut_test_params(duthosts, enum_rand_one_per_hwsku_frontend_hostname, tbinfo,
                     ptf_portmap_file, lower_tor_host, creds):   # noqa F811
     """
diff --git a/tests/generic_config_updater/conftest.py b/tests/generic_config_updater/conftest.py
index 6e14fd1374e..e76ad4d47bf 100644
--- a/tests/generic_config_updater/conftest.py
+++ b/tests/generic_config_updater/conftest.py
@@ -3,7 +3,7 @@
 
 from tests.common.utilities import skip_release
 from tests.common.config_reload import config_reload
-from tests.common.gu_utils import apply_patch
+from tests.common.gu_utils import apply_patch, restore_backup_test_config, save_backup_test_config
 from tests.common.gu_utils import generate_tmpfile, delete_tmpfile
 
 CONFIG_DB = "/etc/sonic/config_db.json"
@@ -12,48 +12,61 @@
 logger = logging.getLogger(__name__)
 
 
+@pytest.fixture(scope="module")
+def selected_dut_hostname(request, rand_one_dut_hostname):
+    """Fixture that returns either `rand_one_dut_hostname` or `rand_one_dut_front_end_hostname`
+    depending on availability."""
+    if "rand_one_dut_front_end_hostname" in request.fixturenames:
+        logger.info("Running on front end duthost")
+        return request.getfixturevalue("rand_one_dut_front_end_hostname")
+    else:
+        logger.info("Running on any type of duthost")
+        return rand_one_dut_hostname
+
+
 # Module Fixture
 @pytest.fixture(scope="module")
-def cfg_facts(duthosts, rand_one_dut_hostname):
+def cfg_facts(duthosts, selected_dut_hostname, rand_asic_namespace):
     """
     Config facts for selected DUT
     Args:
         duthosts: list of DUTs.
-        rand_one_dut_hostname: Hostname of a random chosen dut
+        selected_dut_hostname: Hostname of a random chosen dut
     """
-    duthost = duthosts[rand_one_dut_hostname]
-    return duthost.config_facts(host=duthost.hostname, source="persistent")['ansible_facts']
+    duthost = duthosts[selected_dut_hostname]
+    asic_namespace, asic_id = rand_asic_namespace
+    return duthost.config_facts(host=duthost.hostname, source="persistent", namespace=asic_namespace)['ansible_facts']
 
 
 @pytest.fixture(scope="module", autouse=True)
-def check_image_version(duthosts, rand_one_dut_hostname):
+def check_image_version(duthosts, selected_dut_hostname):
     """Skips this test if the SONiC image installed on DUT is older than 202111
 
     Args:
         duthosts: list of DUTs.
-        rand_one_dut_hostname: Hostname of a random chosen dut
+        selected_dut_hostname: Hostname of a random chosen dut
 
     Returns:
         None.
     """
-    duthost = duthosts[rand_one_dut_hostname]
+    duthost = duthosts[selected_dut_hostname]
     skip_release(duthost, ["201811", "201911", "202012", "202106", "202111"])
 
 
 @pytest.fixture(scope="module", autouse=True)
-def reset_and_restore_test_environment(duthosts, rand_one_dut_hostname):
+def reset_and_restore_test_environment(duthosts, selected_dut_hostname):
     """Reset and restore test env if initial Config cannot pass Yang
 
     Back up the existing config_db.json file and restore it once the test ends.
 
     Args:
         duthosts: list of DUTs.
-        rand_one_dut_hostname: Hostname of a random chosen dut
+        selected_dut_hostname: Hostname of a random chosen dut
 
     Returns:
         None.
     """
-    duthost = duthosts[rand_one_dut_hostname]
+    duthost = duthosts[selected_dut_hostname]
     json_patch = []
     tmpfile = generate_tmpfile(duthost)
 
@@ -62,9 +75,7 @@ def reset_and_restore_test_environment(duthosts, rand_one_dut_hostname):
     finally:
         delete_tmpfile(duthost, tmpfile)
 
-    logger.info("Backup {} to {} on {}".format(
-        CONFIG_DB, CONFIG_DB_BACKUP, duthost.hostname))
-    duthost.shell("cp {} {}".format(CONFIG_DB, CONFIG_DB_BACKUP))
+    save_backup_test_config(duthost, file_postfix="before_gcu_test")
 
     if output['rc'] or "Patch applied successfully" not in output['stdout']:
         logger.info("Running config failed SONiC Yang validation. Reload minigraph. config: {}"
@@ -73,9 +84,7 @@ def reset_and_restore_test_environment(duthosts, rand_one_dut_hostname):
 
     yield
 
-    logger.info("Restore {} with {} on {}".format(
-        CONFIG_DB, CONFIG_DB_BACKUP, duthost.hostname))
-    duthost.shell("mv {} {}".format(CONFIG_DB_BACKUP, CONFIG_DB))
+    restore_backup_test_config(duthost, file_postfix="before_gcu_test", config_reload=False)
 
     if output['rc'] or "Patch applied successfully" not in output['stdout']:
         logger.info("Restore Config after GCU test.")
@@ -83,17 +92,17 @@ def reset_and_restore_test_environment(duthosts, rand_one_dut_hostname):
 
 
 @pytest.fixture(scope="module", autouse=True)
-def verify_configdb_with_empty_input(duthosts, rand_one_dut_hostname):
+def verify_configdb_with_empty_input(duthosts, selected_dut_hostname):
     """Fail immediately if empty input test failure
 
     Args:
         duthosts: list of DUTs.
-        rand_one_dut_hostname: Hostname of a random chosen dut
+        selected_dut_hostname: Hostname of a random chosen dut
 
     Returns:
         None.
     """
-    duthost = duthosts[rand_one_dut_hostname]
+    duthost = duthosts[selected_dut_hostname]
     json_patch = []
     tmpfile = generate_tmpfile(duthost)
 
@@ -119,7 +128,7 @@ def skip_when_buffer_is_dynamic_model(duthost):
 
 # Function Fixture
 @pytest.fixture(autouse=True)
-def ignore_expected_loganalyzer_exceptions(duthosts, rand_one_dut_hostname, loganalyzer):
+def ignore_expected_loganalyzer_exceptions(duthosts, selected_dut_hostname, loganalyzer):
     """
        Ignore expected yang validation failure during test execution
 
@@ -127,11 +136,11 @@ def ignore_expected_loganalyzer_exceptions(duthosts, rand_one_dut_hostname, loga
 
        Args:
             duthosts: list of DUTs.
-            rand_one_dut_hostname: Hostname of a random chosen dut
+            selected_dut_hostname: Hostname of a random chosen dut
            loganalyzer: Loganalyzer utility fixture
     """
     # When loganalyzer is disabled, the object could be None
-    duthost = duthosts[rand_one_dut_hostname]
+    duthost = duthosts[selected_dut_hostname]
     if loganalyzer:
         ignoreRegex = [
             ".*ERR sonic_yang.*",