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+*** Settings ***
+Documentation  Test BMC network interface functionalities.
+
+Resource  ../lib/rest_client.robot
+Resource  ../lib/utils.robot
+Resource  ../lib/bmc_network_utils.robot
+Resource  ../lib/boot_utils.robot
+
+Library  String
+Library  SSHLibrary
+
+Suite Setup  Suite Setup Execution
+
+*** Variables ***
+
+# AA:AA:AA:AA:AA:AA series is a valid MAC and does not exist in
+# our network, so this is chosen to avoid MAC conflict.
+
+${valid_mac}         AA:E2:84:14:28:79
+${broadcast_mac}     FF:FF:FF:FF:FF:FF
+${zero_mac}          00:00:00:00:00:00
+${out_of_range_mac}  AA:FF:FF:FF:FF:100
+${special_char_mac}  &$:AA:AA:AA:AA:^^
+
+# There will be 6 bytes in MAC address (e.g. xx.xx.xx.xx.xx.xx)
+# but trying to configure xx.xx.xx.xx.xx
+
+${less_byte_mac}     AA:AA:AA:AA:BB
+
+# There will be 6 bytes in MAC address (e.g. xx.xx.xx.xx.xx.xx)
+# but trying to configure xx.xx.xx.xx.xx.xx.xx
+
+${more_byte_mac}     AA:AA:AA:AA:AA:AA:BB
+
+*** Test Cases ***
+
+Configure Valid MAC And Verify
+    [Documentation]  Configure valid MAC and verify.
+    [Tags]  Configure_Valid_MAC_And_Verify
+
+    Configure MAC Settings  ${valid_mac}  valid
+
+    # Verify whether new MAC is configured on BMC.
+    Validate MAC On BMC  ${valid_mac}
+
+Configure Invalid MAC And Verify
+    [Documentation]  Configure invalid MAC address which is a string.
+    [Tags]  Configure_Invalid_MAC_And_Verify
+
+    [Template]  Configure MAC Settings
+    # MAC Address        Expected_Result
+    ${special_char_mac}  error
+
+
+Configure Out Of Range MAC And Verify
+    [Documentation]  Configure out-of-range MAC address.
+    [Tags]  Configure_Out_Of_Range_MAC_And_Verify
+
+    [Template]  Configure MAC Settings
+    # MAC Address        Expected_Result
+    ${out_of_range_mac}  error
+
+Configure Broadcast MAC And Verify
+    [Documentation]  Configure broadcast MAC address.
+    [Tags]  Configure_Broadcast_MAC_And_Verify
+
+    [Template]  Configure MAC Settings
+    # MAC Address     Expected_Result
+    ${broadcast_mac}  error
+
+Configure Zero MAC And Verify
+    [Documentation]  Configure zero MAC address.
+    [Tags]  Configure_Zero_MAC_And_Verify
+
+    [Template]  Configure MAC Settings
+    # MAC Address     Expected_Result
+    ${zero_mac}  error
+
+Configure More Byte MAC And Verify
+    [Documentation]  Configure more byte MAC address.
+    [Tags]  Configure_More_Byte_MAC_And_Verify
+
+    [Template]  Configure MAC Settings
+    # MAC Address     Expected_Result
+    ${more_byte_mac}  error
+
+Configure Less Byte MAC And Verify
+    [Documentation]  Configure less byte MAC address.
+    [Tags]  Configure_Less_Byte_MAC_And_Verify
+
+    [Template]  Configure MAC Settings
+    # MAC Address     Expected_Result
+    ${less_byte_mac}  error
+
+Configure Valid MAC And Check Persistency
+    [Documentation]  Configure valid MAC and check persistency.
+    [Tags]  Configure_Valid_MAC_And_Check_Persistency
+
+    Configure MAC Settings  ${valid_mac}  valid
+
+    # Verify whether new MAC is configured on BMC.
+    Validate MAC On BMC  ${valid_mac}
+
+    # Reboot BMC and check whether MAC is persistent.
+    OBMC Reboot (off)
+    Validate MAC On BMC  ${valid_mac}
+
+Revert To Initial MAC And Verify
+    [Documentation]  Revert to initial MAC address.
+    [Tags]  Revert_To_Initial_MAC_And_Verify
+
+    Configure MAC Settings  ${macaddr}  valid
+
+    # Verify whether new MAC is configured on BMC.
+    Validate MAC On BMC  ${macaddr}
+
+*** Keywords ***
+
+Suite Setup Execution
+    [Documentation]  Network setup.
+    Open Connection And Login
+
+    # Get BMC MAC address.
+    ${macaddr}=  Read Attribute  ${XYZ_NETWORK_MANAGER}/eth0  MACAddress
+    Validate MAC On BMC  ${macaddr}
+    Set Suite Variable  ${macaddr}
+
+Validate MAC on BMC
+    [Documentation]  Validate MAC on BMC.
+    [Arguments]  ${mac_addr}
+
+    # Description of argument(s):
+    # mac_addr  MAC address of the BMC.
+
+    ${system_mac}=  Get BMC MAC Address
+
+    Should Contain  ${system_mac}  ${mac_addr}
+    ...  ignore_case=True  msg=MAC address does not exist.
+
+Configure MAC Settings
+    [Documentation]  Configure MAC settings.
+    [Arguments]  ${mac_addr}  ${expected_result}
+
+    # Description of argument(s):
+    # mac_addr         MAC address of BMC.
+    # expected_result  Expected status of MAC configuration.
+
+    ${data}=  Create Dictionary  data=${mac_addr}
+
+    Run Keyword And Ignore Error  OpenBMC Put Request
+    ...  ${XYZ_NETWORK_MANAGER}/eth0/attr/MACAddress  data=${data}
+
+    # After any modification on network interface, BMC restarts network
+    # module, wait until it is reachable.
+
+    Wait For Host To Ping  ${OPENBMC_HOST}  5  12
+
+    # Verify whether new MAC address is populated on BMC system.
+    # It should not allow to configure invalid settings.
+
+    ${status}=  Run Keyword And Return Status
+    ...  Validate MAC On BMC  ${mac_addr}
+
+    Run Keyword If  '${expected_result}' == 'error'
+    ...      Should Be Equal  ${status}  ${False}
+    ...      msg=Allowing the configuration of an invalid MAC.
+    ...  ELSE
+    ...      Should Be Equal  ${status}  ${True}
+    ...      msg=Not allowing the configuration of a valid MAC.
+