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diff --git a/tests/vpp/perf/l2/10ge2p1x520-dot1ad-l2xcbase-ndrchk.robot b/tests/vpp/perf/l2/10ge2p1x520-dot1ad-l2xcbase-ndrchk.robot
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+# Copyright (c) 2017 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 ***
+| Resource | resources/libraries/robot/performance/performance_setup.robot
+| Resource | resources/libraries/robot/l2/tagging.robot
+| ...
+| Force Tags | 3_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | NDRCHK
+| ... | NIC_Intel-X520-DA2 | L2XCFWD | BASE | DOT1AD
+| ...
+| Suite Setup | Set up 3-node performance topology with DUT's NIC model
+| ... | L2 | Intel-X520-DA2
+| Suite Teardown | Tear down 3-node performance topology
+| ...
+| Test Setup | Set up performance test
+| Test Teardown | Tear down performance ndrchk test
+| ...
+| Documentation | *Reference NDR throughput L2XC with 802.1ad verify test cases*
+| ...
+| ... | *[Top] Network Topologies:* TG-DUT1-DUT2-TG 3-node circular topology
+| ... | with single links between nodes.
+| ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for L2 xconnect.
+| ... | 802.1ad tagging is applied on link between DUT1 and DUT2 with inner 4B
+| ... | vlan tag (id=100) and outer 4B vlan tag (id=200).
+| ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with L2 cross-
+| ... | connect. DUT1 and DUT2 tested with 2p10GE NIC X520 Niantic by Intel.
+| ... | *[Ver] TG verification:* In short performance tests, TG verifies
+| ... | DUTs' throughput at ref-NDR (reference Non Drop Rate) with zero packet
+| ... | loss tolerance. Ref-NDR value is periodically updated acording to
+| ... | formula: ref-NDR = 0.9x NDR, where NDR is found in RFC2544 long
+| ... | performance tests for the same DUT configuration. Test packets are
+| ... | generated by TG on links to DUTs. TG traffic profile contains two L3
+| ... | flow-groups (flow-group per direction, 253 flows per flow-group) with
+| ... | all packets containing Ethernet header, IPv4 header with IP protocol=61
+| ... | and static payload. MAC addresses are matching MAC addresses of the
+| ... | TG node interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544.
+
+*** Variables ***
+| ${subid}= | 10
+| ${outer_vlan_id}= | 100
+| ${inner_vlan_id}= | 200
+| ${type_subif}= | two_tags
+| ${tag_rewrite}= | pop-2
+# Traffic profile:
+| ${traffic_profile} | trex-sl-3n-ethip4-ip4src254
+
+*** Test Cases ***
+| tc01-64B-1t1c-dot1ad-l2xcbase-ndrchk
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2XC with 802.1ad config with 1 thread, 1 phy core, \
+| | ... | 1 receive queue per NIC port. [Ver] Verify ref-NDR for 64 Byte
+| | ... | frames using single trial throughput test at 2x 4.0mpps.
+| | [Tags] | 64B | 1T1C | STHREAD
+| | ${framesize}= | Set Variable | ${64}
+| | ${rate}= | Set Variable | 4.0mpps
+| | Given Add '1' worker threads and '1' rxqueues in 3-node single-link circular topology
+| | And Add PCI devices to DUTs in 3-node single link topology
+| | And Add no multi seg to all DUTs
+| | And Apply startup configuration on all VPP DUTs
+| | And Set interfaces in path in 3-node circular topology up
+| | When Initialize VLAN sub-interfaces in 3-node circular topology
+| | ... | ${dut1} | ${dut1_if2} | ${dut2} | ${dut2_if1} | ${subid}
+| | ... | ${outer_vlan_id} | ${inner_vlan_id} | ${type_subif}
+| | And Configure L2 tag rewrite method on interfaces
+| | ... | ${dut1} | ${subif_index_1} | ${dut2} | ${subif_index_2}
+| | ... | ${tag_rewrite}
+| | And Connect interfaces and VLAN sub-interfaces using L2XC
+| | ... | ${dut1} | ${dut1_if1} | ${subif_index_1}
+| | ... | ${dut2} | ${dut2_if2} | ${subif_index_2}
+| | Then Traffic should pass with no loss | ${perf_trial_duration} | ${rate}
+| | ... | ${framesize} | ${traffic_profile}
+
+| tc02-1514B-1t1c-dot1ad-l2xcbase-ndrchk
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2XC with 802.1ad config with 1 thread, 1 phy core, \
+| | ... | 1 receive queue per NIC port. [Ver] Verify ref-NDR for 1514 Byte
+| | ... | frames using single trial throughput test at 2x 810635pps.
+| | [Tags] | 1514B | 1T1C | STHREAD
+| | ${framesize}= | Set Variable | ${1514}
+| | ${rate}= | Set Variable | 810635pps
+| | Given Add '1' worker threads and '1' rxqueues in 3-node single-link circular topology
+| | And Add PCI devices to DUTs in 3-node single link topology
+| | And Add no multi seg to all DUTs
+| | And Apply startup configuration on all VPP DUTs
+| | And Set interfaces in path in 3-node circular topology up
+| | When Initialize VLAN sub-interfaces in 3-node circular topology
+| | ... | ${dut1} | ${dut1_if2} | ${dut2} | ${dut2_if1} | ${subid}
+| | ... | ${outer_vlan_id} | ${inner_vlan_id} | ${type_subif}
+| | And Configure L2 tag rewrite method on interfaces
+| | ... | ${dut1} | ${subif_index_1} | ${dut2} | ${subif_index_2}
+| | ... | ${tag_rewrite}
+| | And Connect interfaces and VLAN sub-interfaces using L2XC
+| | ... | ${dut1} | ${dut1_if1} | ${subif_index_1}
+| | ... | ${dut2} | ${dut2_if2} | ${subif_index_2}
+| | Then Traffic should pass with no loss | ${perf_trial_duration} | ${rate}
+| | ... | ${framesize} | ${traffic_profile}
+
+| tc03-9000B-1t1c-dot1ad-l2xcbase-ndrchk
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2XC with 802.1ad config with 1 thread, 1 phy core, \
+| | ... | 1 receive queue per NIC port. [Ver] Verify ref-NDR for 9000 Byte
+| | ... | frames using single trial throughput test at 2x 138458pps.
+| | [Tags] | 9000B | 1T1C | STHREAD
+| | ${framesize}= | Set Variable | ${9000}
+| | ${rate}= | Set Variable | 138458pps
+| | Given Add '1' worker threads and '1' rxqueues in 3-node single-link circular topology
+| | And Add PCI devices to DUTs in 3-node single link topology
+| | And Apply startup configuration on all VPP DUTs
+| | And Set interfaces in path in 3-node circular topology up
+| | When Initialize VLAN sub-interfaces in 3-node circular topology
+| | ... | ${dut1} | ${dut1_if2} | ${dut2} | ${dut2_if1} | ${subid}
+| | ... | ${outer_vlan_id} | ${inner_vlan_id} | ${type_subif}
+| | And Configure L2 tag rewrite method on interfaces
+| | ... | ${dut1} | ${subif_index_1} | ${dut2} | ${subif_index_2}
+| | ... | ${tag_rewrite}
+| | And Connect interfaces and VLAN sub-interfaces using L2XC
+| | ... | ${dut1} | ${dut1_if1} | ${subif_index_1}
+| | ... | ${dut2} | ${dut2_if2} | ${subif_index_2}
+| | Then Traffic should pass with no loss | ${perf_trial_duration} | ${rate}
+| | ... | ${framesize} | ${traffic_profile}
+
+| tc04-64B-2t2c-dot1ad-l2xcbase-ndrchk
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2XC with 802.1ad config with 2 thread, 2 phy core, \
+| | ... | 1 receive queue per NIC port. [Ver] Verify ref-NDR for 64 Byte
+| | ... | frames using single trial throughput test at 2x 8.5mpps.
+| | [Tags] | 64B | 2T2C | MTHREAD
+| | ${framesize}= | Set Variable | ${64}
+| | ${rate}= | Set Variable | 8.5mpps
+| | Given Add '2' worker threads and '1' rxqueues in 3-node single-link circular topology
+| | And Add PCI devices to DUTs in 3-node single link topology
+| | And Add no multi seg to all DUTs
+| | And Apply startup configuration on all VPP DUTs
+| | And Set interfaces in path in 3-node circular topology up
+| | When Initialize VLAN sub-interfaces in 3-node circular topology
+| | ... | ${dut1} | ${dut1_if2} | ${dut2} | ${dut2_if1} | ${subid}
+| | ... | ${outer_vlan_id} | ${inner_vlan_id} | ${type_subif}
+| | And Configure L2 tag rewrite method on interfaces
+| | ... | ${dut1} | ${subif_index_1} | ${dut2} | ${subif_index_2}
+| | ... | ${tag_rewrite}
+| | And Connect interfaces and VLAN sub-interfaces using L2XC
+| | ... | ${dut1} | ${dut1_if1} | ${subif_index_1}
+| | ... | ${dut2} | ${dut2_if2} | ${subif_index_2}
+| | Then Traffic should pass with no loss | ${perf_trial_duration} | ${rate}
+| | ... | ${framesize} | ${traffic_profile}
+
+| tc05-1514B-2t2c-dot1ad-l2xcbase-ndrchk
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2XC with 802.1ad config with 2 thread, 2 phy core, \
+| | ... | 1 receive queue per NIC port. [Ver] Verify ref-NDR for 1514 Byte
+| | ... | frames using single trial throughput test at 2x 810635pps.
+| | [Tags] | 1514B | 2T2C | MTHREAD
+| | ${framesize}= | Set Variable | ${1514}
+| | ${rate}= | Set Variable | 810635pps
+| | Given Add '2' worker threads and '1' rxqueues in 3-node single-link circular topology
+| | And Add PCI devices to DUTs in 3-node single link topology
+| | And Add no multi seg to all DUTs
+| | And Apply startup configuration on all VPP DUTs
+| | And Set interfaces in path in 3-node circular topology up
+| | When Initialize VLAN sub-interfaces in 3-node circular topology
+| | ... | ${dut1} | ${dut1_if2} | ${dut2} | ${dut2_if1} | ${subid}
+| | ... | ${outer_vlan_id} | ${inner_vlan_id} | ${type_subif}
+| | And Configure L2 tag rewrite method on interfaces
+| | ... | ${dut1} | ${subif_index_1} | ${dut2} | ${subif_index_2}
+| | ... | ${tag_rewrite}
+| | And Connect interfaces and VLAN sub-interfaces using L2XC
+| | ... | ${dut1} | ${dut1_if1} | ${subif_index_1}
+| | ... | ${dut2} | ${dut2_if2} | ${subif_index_2}
+| | Then Traffic should pass with no loss | ${perf_trial_duration} | ${rate}
+| | ... | ${framesize} | ${traffic_profile}
+
+| tc06-9000B-2t2c-dot1ad-l2xcbase-ndrchk
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2XC with 802.1ad config with 2 thread, 2 phy core, \
+| | ... | 1 receive queue per NIC port. [Ver] Verify ref-NDR for 9000 Byte
+| | ... | frames using single trial throughput test at 2x 138458pps.
+| | [Tags] | 9000B | 2T2C | MTHREAD
+| | ${framesize}= | Set Variable | ${9000}
+| | ${rate}= | Set Variable | 138458pps
+| | Given Add '2' worker threads and '1' rxqueues in 3-node single-link circular topology
+| | And Add PCI devices to DUTs in 3-node single link topology
+| | And Apply startup configuration on all VPP DUTs
+| | And Set interfaces in path in 3-node circular topology up
+| | When Initialize VLAN sub-interfaces in 3-node circular topology
+| | ... | ${dut1} | ${dut1_if2} | ${dut2} | ${dut2_if1} | ${subid}
+| | ... | ${outer_vlan_id} | ${inner_vlan_id} | ${type_subif}
+| | And Configure L2 tag rewrite method on interfaces
+| | ... | ${dut1} | ${subif_index_1} | ${dut2} | ${subif_index_2}
+| | ... | ${tag_rewrite}
+| | And Connect interfaces and VLAN sub-interfaces using L2XC
+| | ... | ${dut1} | ${dut1_if1} | ${subif_index_1}
+| | ... | ${dut2} | ${dut2_if2} | ${subif_index_2}
+| | Then Traffic should pass with no loss | ${perf_trial_duration} | ${rate}
+| | ... | ${framesize} | ${traffic_profile}
+
+| tc07-64B-4t4c-dot1ad-l2xcbase-ndrchk
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2XC with 802.1ad config with 4 thread, 4 phy core, \
+| | ... | 2 receive queue per NIC port. [Ver] Verify ref-NDR for 64 Byte
+| | ... | frames using single trial throughput test at 2x 8.6mpps.
+| | [Tags] | 64B | 4T4C | MTHREAD
+| | ${framesize}= | Set Variable | ${64}
+| | ${rate}= | Set Variable | 8.6mpps
+| | Given Add '4' worker threads and '2' rxqueues in 3-node single-link circular topology
+| | And Add PCI devices to DUTs in 3-node single link topology
+| | And Add no multi seg to all DUTs
+| | And Apply startup configuration on all VPP DUTs
+| | And Set interfaces in path in 3-node circular topology up
+| | When Initialize VLAN sub-interfaces in 3-node circular topology
+| | ... | ${dut1} | ${dut1_if2} | ${dut2} | ${dut2_if1} | ${subid}
+| | ... | ${outer_vlan_id} | ${inner_vlan_id} | ${type_subif}
+| | And Configure L2 tag rewrite method on interfaces
+| | ... | ${dut1} | ${subif_index_1} | ${dut2} | ${subif_index_2}
+| | ... | ${tag_rewrite}
+| | And Connect interfaces and VLAN sub-interfaces using L2XC
+| | ... | ${dut1} | ${dut1_if1} | ${subif_index_1}
+| | ... | ${dut2} | ${dut2_if2} | ${subif_index_2}
+| | Then Traffic should pass with no loss | ${perf_trial_duration} | ${rate}
+| | ... | ${framesize} | ${traffic_profile}
+
+| tc08-1514B-4t4c-dot1ad-l2xcbase-ndrchk
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2XC with 802.1ad config with 4 thread, 4 phy core, \
+| | ... | 2 receive queue per NIC port. [Ver] Verify ref-NDR for 1514 Byte
+| | ... | frames using single trial throughput test at 2x 810635pps.
+| | [Tags] | 1514B | 4T4C | MTHREAD
+| | ${framesize}= | Set Variable | ${1514}
+| | ${rate}= | Set Variable | 810635pps
+| | Given Add '4' worker threads and '2' rxqueues in 3-node single-link circular topology
+| | And Add PCI devices to DUTs in 3-node single link topology
+| | And Add no multi seg to all DUTs
+| | And Apply startup configuration on all VPP DUTs
+| | And Set interfaces in path in 3-node circular topology up
+| | When Initialize VLAN sub-interfaces in 3-node circular topology
+| | ... | ${dut1} | ${dut1_if2} | ${dut2} | ${dut2_if1} | ${subid}
+| | ... | ${outer_vlan_id} | ${inner_vlan_id} | ${type_subif}
+| | And Configure L2 tag rewrite method on interfaces
+| | ... | ${dut1} | ${subif_index_1} | ${dut2} | ${subif_index_2}
+| | ... | ${tag_rewrite}
+| | And Connect interfaces and VLAN sub-interfaces using L2XC
+| | ... | ${dut1} | ${dut1_if1} | ${subif_index_1}
+| | ... | ${dut2} | ${dut2_if2} | ${subif_index_2}
+| | Then Traffic should pass with no loss | ${perf_trial_duration} | ${rate}
+| | ... | ${framesize} | ${traffic_profile}
+
+| tc09-9000B-4t4c-dot1ad-l2xcbase-ndrchk
+| | [Documentation]
+| | ... | [Cfg] DUT runs L2XC with 802.1ad config with 4 thread, 4 phy core, \
+| | ... | 2 receive queue per NIC port. [Ver] Verify ref-NDR for 9000 Byte
+| | ... | frames using single trial throughput test at 2x 138458pps.
+| | [Tags] | 9000B | 4T4C | MTHREAD
+| | ${framesize}= | Set Variable | ${9000}
+| | ${rate}= | Set Variable | 138458pps
+| | Given Add '4' worker threads and '2' rxqueues in 3-node single-link circular topology
+| | And Add PCI devices to DUTs in 3-node single link topology
+| | And Apply startup configuration on all VPP DUTs
+| | And Set interfaces in path in 3-node circular topology up
+| | When Initialize VLAN sub-interfaces in 3-node circular topology
+| | ... | ${dut1} | ${dut1_if2} | ${dut2} | ${dut2_if1} | ${subid}
+| | ... | ${outer_vlan_id} | ${inner_vlan_id} | ${type_subif}
+| | And Configure L2 tag rewrite method on interfaces
+| | ... | ${dut1} | ${subif_index_1} | ${dut2} | ${subif_index_2}
+| | ... | ${tag_rewrite}
+| | And Connect interfaces and VLAN sub-interfaces using L2XC
+| | ... | ${dut1} | ${dut1_if1} | ${subif_index_1}
+| | ... | ${dut2} | ${dut2_if2} | ${subif_index_2}
+| | Then Traffic should pass with no loss | ${perf_trial_duration} | ${rate}
+| | ... | ${framesize} | ${traffic_profile}