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+# Copyright 2017-present Open Networking Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# onos common functions
+
+*** Settings ***
+Documentation     Library for BBSimCtl interactions
+Resource          ./k8s.robot
+
+*** Keywords ***
+List ONUs
+    [Documentation]  Lists ONUs via BBSimctl
+    [Arguments]    ${namespace}    ${bbsim_pod_name}
+    ${onus}    ${rc}=    Exec Pod And Return Output And RC    ${namespace}    ${bbsim_pod_name}
+    ...    bbsimctl onu list
+    Log     ${onus}
+    Should Be Equal as Integers    ${rc}    0
+
+Restart Auth
+    [Documentation]  Restart Authentication on a BBSim ONU
+    [Arguments]    ${namespace}    ${bbsim_pod_name}    ${onu}
+    ${res}     ${rc}=    Exec Pod And Return Output And RC    ${namespace}    ${bbsim_pod_name}
+    ...    bbsimctl onu auth_restart ${onu}
+    Log     ${res}
+    Should Be Equal as Integers    ${rc}    0
+
+Restart DHCP
+    [Documentation]  Restart Dhcp on a BBSim ONU
+    [Arguments]    ${namespace}    ${bbsim_pod_name}    ${onu}
+    ${res}     ${rc}=    Exec Pod And Return Output And RC    ${namespace}    ${bbsim_pod_name}
+    ...    bbsimctl onu dhcp_restart ${onu}
+    Log     ${res}
+    Should Be Equal as Integers    ${rc}    0
+
+List Service
+    [Documentation]  Lists Service via BBSimctl
+    [Arguments]    ${namespace}    ${bbsim_pod_name}
+    ${service}    ${rc}=    Exec Pod And Return Output And RC    ${namespace}    ${bbsim_pod_name}
+    ...    bbsimctl service list
+    Log     ${service}
+    Should Be Equal as Integers    ${rc}    0
+
+JoinOrLeave Igmp
+    [Documentation]  Joins or Leaves Igmp on a BBSim ONU
+    [Arguments]    ${namespace}    ${bbsim_pod_name}    ${onu}    ${task}    ${group_address}=224.0.0.22
+    ${res}    ${rc}=    Exec Pod And Return Output And RC    ${namespace}    ${bbsim_pod_name}
+    ...    bbsimctl onu igmp ${onu} ${task} ${group_address}
+    Log     ${res}
+    Should Be Equal as Integers    ${rc}    0