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+# Copyright (c) 2020 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/shared/default.robot
+|
+| Force Tags | 3_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | NDRPDR
+| ... | NIC_Intel-X710 | ETH | IP4FWD | FEATURE | NAT44 | SRC_USER_262144
+| ... | SCALE | DRV_VFIO_PCI
+| ... | RXQ_SIZE_0 | TXQ_SIZE_0
+| ... | ethip4udp-ip4scale262144-udpsrcscale63-nat44
+|
+| Suite Setup | Setup suite topology interfaces | performance
+| Suite Teardown | Tear down suite | performance
+| Test Setup | Setup test | performance
+| Test Teardown | Tear down test | performance | nat
+|
+| Test Template | Local Template
+|
+| Documentation | *RFC2544: Pkt throughput NAT44 performance test cases*
+|
+| ... | *[Top] Network Topologies:* TG-DUT1-DUT2-TG 3-node circular topology
+| ... | with single links between nodes.
+| ... | *[Enc] Packet Encapsulations:* Eth-IPv4-UDP for IPv4 routing.
+| ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with IPv4\
+| ... | routing two static IPv4 /24 and IPv4 /14 route entries on DUT1 and two\
+| ... | static IPv4 /24 route entries on DUT2. DUT1 and DUT2\
+| ... | tested with ${nic_name}.
+| ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
+| ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
+| ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
+| ... | of packets transmitted. NDR and PDR are discovered for different\
+| ... | Ethernet L2 frame sizes using MLRsearch library.\
+| ... | Test packets are generated by TG on\
+| ... | links to DUTs. TG traffic profile contains two L3 flow-groups\
+| ... | (flow-group per direction, one flow per flow-group) with all packets\
+| ... | containing Ethernet header, IPv4 header with UDP header and static\
+| ... | payload. MAC addresses are matching MAC addresses of the TG node\
+| ... | interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544.
+
+*** Variables ***
+| @{plugins_to_enable}= | dpdk_plugin.so | nat_plugin.so
+| ${crypto_type}= | ${None}
+| ${nic_name}= | Intel-X710
+| ${nic_driver}= | vfio-pci
+| ${nic_rxq_size}= | 0
+| ${nic_txq_size}= | 0
+| ${nic_pfs}= | 2
+| ${nic_vfs}= | 0
+| ${osi_layer}= | L3
+| ${overhead}= | ${0}
+# Traffic profile:
+| ${traffic_profile}= | trex-sl-ethip4udp-262144u63p
+# IP addresing
+| ${tg_if1_ip4}= | 10.0.0.2
+| ${tg_if1_mask}= | 20
+| ${tg_if2_ip4}= | 12.0.0.2
+| ${tg_if2_mask}= | 20
+| ${dut1_if1_ip4}= | 10.0.0.1
+| ${dut1_if1_mask}= | 20
+| ${dut1_if2_ip4}= | 11.0.0.1
+| ${dut1_if2_mask}= | 20
+| ${dut2_if1_ip4}= | 11.0.0.2
+| ${dut2_if1_mask}= | 20
+| ${dut2_if2_ip4}= | 12.0.0.1
+| ${dut2_if2_mask}= | 20
+| ${inside_net}= | 172.16.0.0
+| ${inside_mask}= | 14
+| ${nat_net}= | 68.142.68.0
+| ${nat_mask}= | 24
+| ${dest_net}= | 20.0.0.0
+| ${dest_mask}= | 24
+
+*** Keywords ***
+| Local Template
+| | [Documentation]
+| | ... | [Cfg] DUT runs IPv4 routing config.
+| | ... | Each DUT uses ${phy_cores} physical core(s) for worker threads.
+| | ... | [Ver] Measure NDR and PDR values using MLRsearch algorithm.\
+| |
+| | ... | *Arguments:*
+| | ... | - frame_size - Framesize in Bytes in integer or string (IMIX_v4_1).
+| | ... | Type: integer, string
+| | ... | - phy_cores - Number of physical cores. Type: integer
+| | ... | - rxq - Number of RX queues, default value: ${None}. Type: integer
+| |
+| | [Arguments] | ${frame_size} | ${phy_cores} | ${rxq}=${None}
+| |
+| | Set Test Variable | \${frame_size}
+| |
+| | Given Set Max Rate And Jumbo
+| | And Add worker threads to all DUTs | ${phy_cores} | ${rxq}
+| | And Pre-initialize layer driver | ${nic_driver}
+| | And Add NAT to all DUTs
+| | And Apply startup configuration on all VPP DUTs
+| | When Initialize layer driver | ${nic_driver}
+| | And Initialize layer interface
+| | And Initialize NAT44 in circular topology
+| | Then Find NDR and PDR intervals using optimized search
+
+*** Test Cases ***
+| 64B-1c-ethip4udp-ip4scale262144-udpsrcscale63-nat44-ndrpdr
+| | [Tags] | 64B | 1C
+| | frame_size=${64} | phy_cores=${1}
+
+| 64B-2c-ethip4udp-ip4scale262144-udpsrcscale63-nat44-ndrpdr
+| | [Tags] | 64B | 2C
+| | frame_size=${64} | phy_cores=${2}
+
+| 64B-4c-ethip4udp-ip4scale262144-udpsrcscale63-nat44-ndrpdr
+| | [Tags] | 64B | 4C
+| | frame_size=${64} | phy_cores=${4}
+
+| 1518B-1c-ethip4udp-ip4scale262144-udpsrcscale63-nat44-ndrpdr
+| | [Tags] | 1518B | 1C
+| | frame_size=${1518} | phy_cores=${1}
+
+| 1518B-2c-ethip4udp-ip4scale262144-udpsrcscale63-nat44-ndrpdr
+| | [Tags] | 1518B | 2C
+| | frame_size=${1518} | phy_cores=${2}
+
+| 1518B-4c-ethip4udp-ip4scale262144-udpsrcscale63-nat44-ndrpdr
+| | [Tags] | 1518B | 4C
+| | frame_size=${1518} | phy_cores=${4}
+
+| 9000B-1c-ethip4udp-ip4scale262144-udpsrcscale63-nat44-ndrpdr
+| | [Tags] | 9000B | 1C
+| | frame_size=${9000} | phy_cores=${1}
+
+| 9000B-2c-ethip4udp-ip4scale262144-udpsrcscale63-nat44-ndrpdr
+| | [Tags] | 9000B | 2C
+| | frame_size=${9000} | phy_cores=${2}
+
+| 9000B-4c-ethip4udp-ip4scale262144-udpsrcscale63-nat44-ndrpdr
+| | [Tags] | 9000B | 4C
+| | frame_size=${9000} | phy_cores=${4}
+
+| IMIX-1c-ethip4udp-ip4scale262144-udpsrcscale63-nat44-ndrpdr
+| | [Tags] | IMIX | 1C
+| | frame_size=IMIX_v4_1 | phy_cores=${1}
+
+| IMIX-2c-ethip4udp-ip4scale262144-udpsrcscale63-nat44-ndrpdr
+| | [Tags] | IMIX | 2C
+| | frame_size=IMIX_v4_1 | phy_cores=${2}
+
+| IMIX-4c-ethip4udp-ip4scale262144-udpsrcscale63-nat44-ndrpdr
+| | [Tags] | IMIX | 4C
+| | frame_size=IMIX_v4_1 | phy_cores=${4}