diff --git a/libraries/utils.robot b/libraries/utils.robot
index e2cb049..4b98f51 100644
--- a/libraries/utils.robot
+++ b/libraries/utils.robot
@@ -200,6 +200,9 @@
     ...    and avoids duplication of code.
     ${of_id}=    Wait Until Keyword Succeeds    ${timeout}    15s    Validate OLT Device in ONOS    ${olt_serial_number}
     Set Global Variable    ${of_id}
+    ${nni_port}=    Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    2s
+    ...    Get NNI Port in ONOS    ${of_id}
+    Set Global Variable    ${nni_port}
     FOR    ${I}    IN RANGE    0    ${num_onus}
         ${src}=    Set Variable    ${hosts.src[${I}]}
         ${dst}=    Set Variable    ${hosts.dst[${I}]}
@@ -212,11 +215,15 @@
         Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    2
         ...    Execute ONOS CLI Command    ${ONOS_SSH_IP}    ${ONOS_SSH_PORT}
         ...    volt-add-subscriber-access ${of_id} ${onu_port}
+        # Verify subscriber access flows are added for the ONU port
+        Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    5s
+        ...    Verify Subscriber Access Flows Added For ONU DT    ${ONOS_SSH_IP}    ${ONOS_SSH_PORT}    ${onu_port}
+        ...    ${nni_port}    ${src['s_tag']}
         # Verify ONU state in voltha
         Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    5s    Validate Device
         ...    ENABLED    ACTIVE    REACHABLE
         ...    ${src['onu']}    onu=True    onu_reason=omci-flows-pushed
-        # TODO: Yet to Verify on the Physical POD
+        # TODO: Yet to Verify on the GPON based Physical POD (VOL-2652)
         Run Keyword If    ${has_dataplane}    Run Keyword And Continue On Failure    Validate DHCP and Ping    True
         ...    True    ${src['dp_iface_name']}    ${src['s_tag']}    ${src['c_tag']}    ${dst['dp_iface_ip_qinq']}
         ...    ${src['ip']}    ${src['user']}    ${src['pass']}    ${src['container_type']}    ${src['container_name']}
@@ -225,7 +232,12 @@
         Run Keyword and Ignore Error    Get Device Output from Voltha    ${onu_device_id}
         Run Keyword and Ignore Error    Collect Logs
     END
-    # Verify VOLTHA Flows (TODO: Add verification for ONOS Flows)
+    # Verify ONOS Flows
+    # Number of Access Flows on ONOS equals 4 * the Number of Active ONUs (2 for each downstream and upstream)
+    ${onos_flows_count}=    Evaluate    4 * ${num_onus}
+    Run Keyword And Continue On Failure    Wait Until Keyword Succeeds    ${timeout}    5s
+    ...    Verify Subscriber Access Flows Added Count DT    ${ONOS_SSH_IP}    ${ONOS_SSH_PORT}    ${onos_flows_count}
+    # Verify VOLTHA Flows
     # Number of per OLT Flows equals Twice the Number of Active ONUs (each for downstream and upstream) + 1 for LLDP
     ${olt_flows}=    Evaluate    2 * ${num_onus} + 1
     # Number of per ONU Flows equals 2 (one each for downstream and upstream)