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+# Copyright (c) 2016 Cisco and/or its affiliates.
+# 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.
+
+*** Settings ***
+| Documentation | Keywords for VLAN tests
+| Resource | resources/libraries/robot/shared/default.robot
+| Resource | resources/libraries/robot/l2/l2_xconnect.robot
+| Library | resources.libraries.python.L2Util
+| Library | resources.libraries.python.InterfaceUtil
+| Library | resources.libraries.python.NodePath
+
+*** Keywords ***
+
+| Initialize VLAN sub-interfaces in 3-node circular topology
+| | [Arguments] | ${DUT1} | ${INT1} | ${DUT2} | ${INT2} | ${SUB_ID}
+| | ...         | ${OUTER_VLAN_ID} | ${INNER_VLAN_ID} | ${TYPE_SUBIF}
+| | [Documentation] | *Create two subinterfaces on DUTs.*
+| | ...
+| | ... | *Arguments:*
+| | ... | - DUT1 - Node to add sub-interface.
+| | ... | - INT1 - Interface name on which create sub-interface.
+| | ... | - DUT2 - Node to add sub-interface.
+| | ... | - INT2 - Interface name on which create sub-interface.
+| | ... | - SUB_ID - ID of the sub-interface to be created.
+| | ... | - OUTER_VLAN_ID - Outer VLAN ID.
+| | ... | - INNER_VLAN_ID - Inner VLAN ID.
+| | ... | - TYPE_SUBIF - Type of sub-interface.
+| | ...
+| | ... | _Set testcase variables with name and index of created interfaces:_
+| | ... | - subif_name_1
+| | ... | - subif_index_1
+| | ... | - subif_name_2
+| | ... | - subif_index_2
+| | ...
+| | ${INT1_name}= | Get interface name | ${DUT1} | ${INT1}
+| | ${subif_name_1} | ${subif_index_1}= | Create subinterface | ${DUT1}
+| | ...                                 | ${INT1_name} | ${SUB_ID}
+| | ...                                 | ${OUTER_VLAN_ID} | ${INNER_VLAN_ID}
+| | ...                                 | ${TYPE_SUBIF}
+| | ${INT2_name}= | Get interface name | ${DUT2} | ${INT2}
+| | ${subif_name_2} | ${subif_index_2}= | Create subinterface | ${DUT2}
+| | ...                                 | ${INT2_name} | ${SUB_ID}
+| | ...                                 | ${OUTER_VLAN_ID} | ${INNER_VLAN_ID}
+| | ...                                 | ${TYPE_SUBIF}
+| | Set Interface State | ${DUT1} | ${subif_index_1} | up
+| | Set Interface State | ${DUT2} | ${subif_index_2} | up
+| | Set Test Variable | ${subif_name_1}
+| | Set Test Variable | ${subif_index_1}
+| | Set Test Variable | ${subif_name_2}
+| | Set Test Variable | ${subif_index_2}
+
+| Initialize VLAN dot1q sub-interfaces in 3-node circular topology
+| | [Arguments] | ${DUT1} | ${INT1} | ${DUT2} | ${INT2} | ${SUB_ID}
+| | [Documentation] | *Create two dot1q subinterfaces on DUTs.*
+| | ...
+| | ... | *Arguments:*
+| | ... | - DUT1 - Node to add sub-interface.
+| | ... | - INT1 - Interface name on which create VLAN sub-interface.
+| | ... | - DUT2 - Node to add sub-interface.
+| | ... | - INT2 - Interface name on which create VLAN sub-interface.
+| | ... | - SUB_ID - ID of the sub-interface to be created.
+| | ...
+| | ... | _Set testcase variables with name and index of created interfaces:_
+| | ... | - subif_name_1
+| | ... | - subif_index_1
+| | ... | - subif_name_2
+| | ... | - subif_index_2
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Initialize VLAN dot1q sub-interfaces in 3-node circular topology \
+| | ... | \| ${nodes['DUT1']} \| ${dut1_if2} \| ${nodes['DUT2']} \
+| | ... | \| ${dut1_if2} \| 10 \|
+| | ...
+| | ${INT1_NAME}= | Get interface name | ${DUT1} | ${INT1}
+| | ${INT2_NAME}= | Get interface name | ${DUT2} | ${INT2}
+| | ${subif_name_1} | ${subif_index_1}= | Create Vlan Subinterface
+| |                 | ...               | ${DUT1} | ${INT1_NAME} | ${SUB_ID}
+| | ${subif_name_2} | ${subif_index_2}= | Create Vlan Subinterface
+| |                 | ...               | ${DUT2} | ${INT2_NAME} | ${SUB_ID}
+| | Set Interface State | ${DUT1} | ${subif_index_1} | up
+| | Set Interface State | ${DUT2} | ${subif_index_2} | up
+| | Set Test Variable | ${subif_name_1}
+| | Set Test Variable | ${subif_index_1}
+| | Set Test Variable | ${subif_name_2}
+| | Set Test Variable | ${subif_index_2}
+
+| Configure L2 tag rewrite method on interfaces
+| | [Arguments] | ${DUT1} | ${SUB_INT1} | ${DUT2} | ${SUB_INT2}
+| | ...         | ${TAG_REWRITE_METHOD}
+| | [Documentation] | *Setup tag rewrite on sub-interfaces on DUTs.*
+| | ...
+| | ... | *Arguments:*
+| | ... | - DUT1 - Node to rewrite tags.
+| | ... | - SUB_INT1 - Interface on which rewrite tags.
+| | ... | - DUT2 - Node to rewrite tags.
+| | ... | - SUB_INT2 - Interface on which rewrite tags.
+| | ... | - TAG_REWRITE_METHOD - Method of tag rewrite.
+| | ...
+| | L2 Vlan tag rewrite | ${DUT1} | ${SUB_INT1} | ${TAG_REWRITE_METHOD}
+| | L2 Vlan tag rewrite | ${DUT2} | ${SUB_INT2} | ${TAG_REWRITE_METHOD}
+
+| Connect interfaces and VLAN sub-interfaces using L2XC
+| | [Arguments] | ${DUT1} | ${INT1} | ${SUB_INT1}
+| | ...         | ${DUT2} | ${INT2} | ${SUB_INT2}
+| | [Documentation] | *Add interface and subinterface to bidirectional
+| | ...             | L2-xconnect on DUTs.*
+| | ...
+| | ... | *Arguments:*
+| | ... | - DUT1 - Node to add bidirectional cross-connect.
+| | ... | - INT1 - Interface to add to the cross-connect.
+| | ... | - SUB_INT1 - Sub-interface to add to the cross-connect.
+| | ... | - DUT2 - Node to add bidirectional cross-connect.
+| | ... | - INT2 - Interface to add to the cross-connect.
+| | ... | - SUB_INT2 - Sub-interface to add to the cross-connect.
+| | ...
+| | Configure L2XC | ${DUT1} | ${INT1} | ${SUB_INT1}
+| | Configure L2XC | ${DUT2} | ${INT2} | ${SUB_INT2}
+
+| Create vlan sub-interface
+| | [Documentation] | Create VLAN sub-interface on DUT and set admin status up.
+| | ...
+| | ... | *Arguments:*
+| | ... | - dut_node - Node to add VLAN sub-intreface. Type: dictionary
+| | ... | - interface - Interface to create VLAN sub-interface. Type: string
+| | ... | - vlan_id - VLAN ID. Type: integer
+| | ...
+| | ... | *Return:*
+| | ... | - vlan_name - VLAN sub-interface name. Type: string
+| | ... | - vlan_index - VLAN sub-interface SW index. Type: integer
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Create vlan sub-interface \| ${nodes['DUT1']} \| port3 \| 100 \|
+| | ...
+| | [Arguments] | ${dut_node} | ${interface} | ${vlan_id}
+| | [Return] | ${vlan_name} | ${vlan_index}
+| | ${interface_name}= | Get interface name | ${dut_node} | ${interface}
+| | ${vlan_name} | ${vlan_index}= | Create Vlan Subinterface
+| | ... | ${dut_node} | ${interface_name} | ${vlan_id}
+| | Set Interface State | ${dut_node} | ${vlan_index} | up
+
+| Create tagged sub-interface
+| | [Documentation] | Create tagged sub-interface on DUT. Type of tagged \
+| | ... | sub-intreface depends on type_subif value:
+| | ... | - one_tag -> VLAN
+| | ... | - two_tags -> QinQ VLAN
+| | ... | - two_tags dot1ad - DOT1AD
+| | ...
+| | ... | *Arguments:*
+| | ... | - dut_node - Node to add VLAN sub-intreface. Type: dictionary
+| | ... | - interface - Interface to create tagged sub-interface. Type: string
+| | ... | - subif_id - Sub-interface ID. Type: integer
+| | ... | - outer_vlan_id - VLAN (outer) ID (Optional). Type: integer
+| | ... | - inner_vlan_id - VLAN inner ID (Optional). Type: integer
+| | ... | - type_subif - Sub-interface type (Optional). Type: string
+| | ...
+| | ... | *Return:*
+| | ... | - subif_name - Sub-interface name. Type: string
+| | ... | - subif_index - Sub-interface SW index. Type: integer
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Create tagged sub-interface \| ${nodes['DUT1']} \| port1 \| 10 \
+| | ... | \| outer_vlan_id=100 \| inner_vlan_id=200 \
+| | ... | \| type_subif=two_tags dot1ad \|
+| | ...
+| | [Arguments] | ${dut_node} | ${interface} | ${subif_id}
+| | ... | ${outer_vlan_id}=${None} | ${inner_vlan_id}=${None}
+| | ... | ${type_subif}=${None}
+| | [Return] | ${subif_name} | ${subif_index}
+| | ${interface_name}= | Get interface name | ${dut_node} | ${interface}
+| | ${subif_name} | ${subif_index}= | Create Subinterface
+| | ... | ${dut_node} | ${interface_name} | ${subif_id}
+| | ... | outer_vlan_id=${outer_vlan_id} | inner_vlan_id=${inner_vlan_id}
+| | ... | type_subif=${type_subif}
+
+| Configure L2 tag rewrite method on interface
+| | [Documentation] | Set L2 tag rewrite on (sub-)interface on DUT
+| | ...
+| | ... | *Arguments:*
+| | ... | - dut_node - Node to set L2 tag rewrite method. Type: dictionary
+| | ... | - interface - (Sub-)interface name or SW index to set L2 tag rewrite
+| | ... | method. Type: string or integer
+| | ... | - tag_rewrite_method - Tag rewrite method. Type: string
+| | ... | - push_dot1q - True to push tags as Dot1q, False to push tags as
+| | ... | Dot1ad (Optional). Type: boolean
+| | ... | - tag1_id - VLAN tag1 ID (Optional). Type: integer
+| | ... | - tag2_id - VLAN tag2 ID (Optional). Type: integer
+| | ...
+| | ... | *Return:*
+| | ...
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Configure L2 tag rewrite method on interface \| ${nodes['DUT1']} \
+| | ... | \| 9 \| pop-1 \|
+| | ... | \| Configure L2 tag rewrite method on interface \| ${nodes['DUT2']} \
+| | ... | \| 10 \| translate-1-2 \| push_dot1q=${False} \| tag1_id=10 \
+| | ... | \| tag1_id=20 \|
+| | ...
+| | [Arguments] | ${dut_node} | ${interface} | ${tag_rewrite_method}
+| | ... | ${push_dot1q}=${True} | ${tag1_id}=${None} | ${tag2_id}=${None}
+| | ${result}= | Evaluate | isinstance($interface, int)
+| | ${interface_name}= | Run Keyword If | ${result} | Set Variable | ${interface}
+| | ...                | ELSE | Get interface name | ${dut_node} | ${interface}
+| | L2 Vlan Tag Rewrite | ${dut_node} | ${interface_name} | ${tag_rewrite_method}
+| | ... | push_dot1q=${push_dot1q} | tag1_id=${tag1_id} | tag2_id=${tag2_id}