diff --git a/tests/functional/K8S_SystemTest.robot b/tests/functional/K8S_SystemTest.robot
index 13023ef..2fd906b 100644
--- a/tests/functional/K8S_SystemTest.robot
+++ b/tests/functional/K8S_SystemTest.robot
@@ -29,7 +29,7 @@
 ${desired_ETCD_cluster_size}    3
 ${minimal_ETCD_cluster_size}    2
 ${namespace}      voltha
-${ETCD_namespace}    default
+${INFRA_NAMESPACE}    default
 ${ETCD_resources}    statefulsets
 ${ETCD_name}      etcd
 ${ETCD_pod_label_key}    app
@@ -52,20 +52,20 @@
     [Teardown]    Run Keywords    Collect Logs
     ...           AND    Teardown Suite
     ...           AND    Stop Logging    EtcdScaleTest
-    ${current_size}=    Get ETCD Replica Count    ${ETCD_namespace}
+    ${current_size}=    Get ETCD Replica Count    ${INFRA_NAMESPACE}
     Pass Execution If    '${current_size}' != '${desired_ETCD_cluster_size}'
     ...    'Skip the test if the cluster size smaller than minimal size 3'
     # The minimal cluster size after scale down
     # based on https://github.com/ETCD-io/ETCD/blob/master/Documentation/faq.md#what-is-failure-tolerance
-    Scale ETCD    ${ETCD_namespace}    ${minimal_ETCD_cluster_size}
+    Scale ETCD    ${INFRA_NAMESPACE}    ${minimal_ETCD_cluster_size}
     Wait Until Keyword Succeeds    ${timeout}    2s
-    ...    Validate ETCD Size    ${ETCD_namespace}    ${minimal_ETCD_cluster_size}
+    ...    Validate ETCD Size    ${INFRA_NAMESPACE}    ${minimal_ETCD_cluster_size}
     # Perform the sanity-test
     Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Test
     # We scale up the size to 3, the recommended size of ETCD cluster.
-    Scale ETCD    ${ETCD_namespace}    ${desired_ETCD_cluster_size}
+    Scale ETCD    ${INFRA_NAMESPACE}    ${desired_ETCD_cluster_size}
     Wait Until Keyword Succeeds    ${timeout}    2s
-    ...    Validate ETCD Size    ${ETCD_namespace}    ${desired_ETCD_cluster_size}
+    ...    Validate ETCD Size    ${INFRA_NAMESPACE}    ${desired_ETCD_cluster_size}
     # Perform the sanity-test again
     Run Keyword If    ${has_dataplane}    Clean Up Linux
     Wait Until Keyword Succeeds    ${timeout}    2s    Perform Sanity Test
@@ -76,9 +76,9 @@
     [Setup]    Start Logging    EtcdFailureTest
     [Teardown]    Run Keywords    Collect Logs
     ...              AND    Stop Logging    EtcdFailureTest
-    Delete K8s Pods By Label    ${ETCD_namespace}    ${ETCD_pod_label_key}    ${ETCD_name}
+    Delete K8s Pods By Label    ${INFRA_NAMESPACE}    ${ETCD_pod_label_key}    ${ETCD_name}
     #Wait Until Keyword Succeeds    ${timeout}    2s
-    #...    Pods Do Not Exist By Label    ${ETCD_namespace}    ${ETCD_pod_label_key}    ${ETCD_name}
+    #...    Pods Do Not Exist By Label    ${INFRA_NAMESPACE}    ${ETCD_pod_label_key}    ${ETCD_name}
     Wait Until Keyword Succeeds    ${timeout}    2s
     ...    Pods Are Ready By Label    ${namespace}    ${common_pod_label_key}    ${rwcore_pod_label_value}
     Wait Until Keyword Succeeds    ${timeout}    2s
diff --git a/tests/functional/Voltha_FailureScenarios.robot b/tests/functional/Voltha_FailureScenarios.robot
index 3c77df6..1e29331 100644
--- a/tests/functional/Voltha_FailureScenarios.robot
+++ b/tests/functional/Voltha_FailureScenarios.robot
@@ -43,7 +43,7 @@
 ${VOLTHA_POD_NUM}    8
 ${NAMESPACE}      voltha
 ${DEFAULTSPACE}      default
-${RADIUSSPACE}    infra
+${INFRA_NAMESPACE}    infra
 # For below variable value, using deployment name as using grep for
 # parsing radius pod name, we can also use full radius pod name
 ${RESTART_POD_NAME}    radius
@@ -228,8 +228,8 @@
     ...           AND             Stop Logging    RadiusRestart
     ${waitforRestart}    Set Variable    120s
     ${podName}    Set Variable     radius
-    Wait Until Keyword Succeeds    ${timeout}    15s    Delete K8s Pods By Label    ${RADIUSSPACE}    app    ${podName}
-    Wait Until Keyword Succeeds    ${waitforRestart}    2s    Validate Pods Status By Label    ${RADIUSSPACE}
+    Wait Until Keyword Succeeds    ${timeout}    15s    Delete K8s Pods By Label    ${INFRA_NAMESPACE}    app    ${podName}
+    Wait Until Keyword Succeeds    ${waitforRestart}    2s    Validate Pods Status By Label    ${INFRA_NAMESPACE}
     ...    app    ${podName}    Running
     FOR    ${I}    IN RANGE    0    ${num_all_onus}
         ${src}=    Set Variable    ${hosts.src[${I}]}
diff --git a/tests/functional/Voltha_ONOSHATests.robot b/tests/functional/Voltha_ONOSHATests.robot
index e9ecac8..809a945 100644
--- a/tests/functional/Voltha_ONOSHATests.robot
+++ b/tests/functional/Voltha_ONOSHATests.robot
@@ -41,7 +41,7 @@
 ${HELM_CHARTS_DIR}    ~/helm-charts
 ${VOLTHA_POD_NUM}    8
 ${NAMESPACE}      default
-${ONOSSPACE}      infra
+${INFRA_NAMESPACE}      infra
 # For below variable value, using deployment name as using grep for
 # parsing radius pod name, we can also use full radius pod name
 ${RESTART_POD_NAME}    radius
@@ -66,7 +66,7 @@
     [Setup]    Start Logging     onosMasterRestart
     [Teardown]    Run Keywords    Collect Logs
     ...           AND             Stop Logging    onosMasterRestart
-    ${numOfOnos}=    Wait Until Keyword Succeeds    20s    5s    Get Number of Running Pods Number By Label    ${ONOSSPACE}
+    ${numOfOnos}=    Wait Until Keyword Succeeds    20s    5s    Get Number of Running Pods Number By Label    ${INFRA_NAMESPACE}
     ...    app    onos-classic
     Should Not Be Equal As Integers    ${numOfOnos}    0    Error fetching number of ONOS instances
     Pass Execution If    ${numOfOnos} == 1    Skipping test: just one instance of ONOS
@@ -85,9 +85,9 @@
         ${node_id}=    Wait Until Keyword Succeeds    20s    5s    Get Master Instace in ONOS    ${of_id}
         @{onos_id}=    Split String    ${node_id}    -
         ${podName}=    Catenate    SEPARATOR=-    voltha-infra-onos-classic    ${onos_id[1]}
-        Wait Until Keyword Succeeds    ${timeout}    15s    Delete K8s Pods By Name    ${ONOSSPACE}    ${podName}
+        Wait Until Keyword Succeeds    ${timeout}    15s    Delete K8s Pods By Name    ${INFRA_NAMESPACE}    ${podName}
         Sleep    60s
-        Wait Until Keyword Succeeds    ${timeout}    2s    Validate Pods Status By Name    ${ONOSSPACE}
+        Wait Until Keyword Succeeds    ${timeout}    2s    Validate Pods Status By Name    ${INFRA_NAMESPACE}
         ...    ${podName}    Running
         # Performing Sanity Test to make sure subscribers are all AUTH+DHCP and pingable
         Run Keyword If    ${has_dataplane}    Clean Up Linux