# Copyright (c) 2018 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 *** | Library | resources.libraries.python.DUTSetup | Library | resources.tools.wrk.wrk | Resource | resources/libraries/robot/performance/performance_configuration.robot | Resource | resources/libraries/robot/performance/performance_utils.robot | Resource | resources/libraries/robot/tcp/tcp_setup.robot | Documentation | Performance suite keywords - Suite and test setups and | ... | teardowns. *** Keywords *** # Keywords used in setups and teardowns | Set variables in 2-node circular topology | | [Documentation] | | ... | Compute path for testing on two given nodes in circular | | ... | topology and set corresponding suite variables. | | ... | | ... | _NOTE:_ This KW sets following suite variables: | | ... | - tg - TG node | | ... | - tg_if1 - 1st TG interface towards DUT. | | ... | - tg_if2 - 2nd TG interface towards DUT. | | ... | - dut1 - DUT1 node | | ... | - dut1_if1 - 1st DUT interface towards TG. | | ... | - dut1_if2 - 2nd DUT interface towards TG. | | ... | | Append Nodes | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['TG']} | | Compute Path | always_same_link=${FALSE} | | ${tg_if1} | ${tg}= | First Interface | | ${dut1_if1} | ${dut1}= | First Ingress Interface | | ${dut1_if2} | ${dut1}= | Last Egress Interface | | ${tg_if2} | ${tg}= | Last Interface | | Set Suite Variable | ${tg} | | Set Suite Variable | ${tg_if1} | | Set Suite Variable | ${tg_if2} | | Set Suite Variable | ${dut1} | | Set Suite Variable | ${dut1_if1} | | Set Suite Variable | ${dut1_if2} | Set variables in 3-node circular topology | | [Documentation] | | ... | Compute path for testing on three given nodes in circular | | ... | topology and set corresponding suite variables. | | ... | | ... | _NOTE:_ This KW sets following suite variables: | | ... | - tg - TG node | | ... | - tg_if1 - TG interface towards DUT1. | | ... | - tg_if2 - TG interface towards DUT2. | | ... | - dut1 - DUT1 node | | ... | - dut1_if1 - DUT1 interface towards TG. | | ... | - dut1_if2 - DUT1 interface towards DUT2. | | ... | - dut2 - DUT2 node | | ... | - dut2_if1 - DUT2 interface towards DUT1. | | ... | - dut2_if2 - DUT2 interface towards TG. | | ... | | Append Nodes | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['DUT2']} | | ... | ${nodes['TG']} | | Compute Path | | ${tg_if1} | ${tg}= | Next Interface | | ${dut1_if1} | ${dut1}= | Next Interface | | ${dut1_if2} | ${dut1}= | Next Interface | | ${dut2_if1} | ${dut2}= | Next Interface | | ${dut2_if2} | ${dut2}= | Next Interface | | ${tg_if2} | ${tg}= | Next Interface | | Set Suite Variable | ${tg} | | Set Suite Variable | ${tg_if1} | | Set Suite Variable | ${tg_if2} | | Set Suite Variable | ${dut1} | | Set Suite Variable | ${dut1_if1} | | Set Suite Variable | ${dut1_if2} | | Set Suite Variable | ${dut2} | | Set Suite Variable | ${dut2_if1} | | Set Suite Variable | ${dut2_if2} | Set variables in 2-node circular topology with DUT interface model | | [Documentation] | | ... | Compute path for testing on two given nodes in circular topology | | ... | based on interface model provided as an argument and set | | ... | corresponding suite variables. | | ... | | ... | *Arguments:* | | ... | - iface_model - Interface model. Type: string | | ... | | ... | _NOTE:_ This KW sets following suite variables: | | ... | - tg - TG node | | ... | - tg_if1 - 1st TG interface towards DUT. | | ... | - tg_if2 - 2nd TG interface towards DUT. | | ... | - dut1 - DUT1 node | | ... | - dut1_if1 - 1st DUT interface towards TG. | | ... | - dut1_if2 - 2nd DUT interface towards TG. | | ... | | ... | *Example:* | | ... | | ... | \| Set variables in 2-node circular topology with DUT interface model\ | | ... | \| Intel-X520-DA2 \| | | ... | | [Arguments] | ${iface_model} | | ... | | ${iface_model_list}= | Create list | ${iface_model} | | Append Node | ${nodes['TG']} | | Append Node | ${nodes['DUT1']} | filter_list=${iface_model_list} | | Append Node | ${nodes['TG']} | | Compute Path | always_same_link=${FALSE} | | ${tg_if1} | ${tg}= | First Interface | | ${dut1_if1} | ${dut1}= | First Ingress Interface | | ${dut1_if2} | ${dut1}= | Last Egress Interface | | ${tg_if2} | ${tg}= | Last Interface | | Set Suite Variable | ${tg} | | Set Suite Variable | ${tg_if1} | | Set Suite Variable | ${tg_if2} | | Set Suite Variable | ${dut1} | | Set Suite Variable | ${dut1_if1} | | Set Suite Variable | ${dut1_if2} | Set variables in 3-node circular topology with DUT interface model | | [Documentation] | | ... | Compute path for testing on three given nodes in circular topology | | ... | based on interface model provided as an argument and set | | ... | corresponding suite variables. | | ... | | ... | *Arguments:* | | ... | - iface_model - Interface model. Type: string | | ... | | ... | _NOTE:_ This KW sets following suite variables: | | ... | - tg - TG node | | ... | - tg_if1 - TG interface towards DUT1. | | ... | - tg_if2 - TG interface towards DUT2. | | ... | - dut1 - DUT1 node | | ... | - dut1_if1 - DUT1 interface towards TG. | | ... | - dut1_if2 - DUT1 interface towards DUT2. | | ... | - dut2 - DUT2 node | | ... | - dut2_if1 - DUT2 interface towards DUT1. | | ... | - dut2_if2 - DUT2 interface towards TG. | | ... | | ... | *Example:* | | ... | | ... | \| Set variables in 3-node circular topology with DUT interface model\ | | ... | \| Intel-X520-DA2 \| | | ... | | [Arguments] | ${iface_model} | | ... | | ${iface_model_list}= | Create list | ${iface_model} | | Append Node | ${nodes['TG']} | | Append Node | ${nodes['DUT1']} | filter_list=${iface_model_list} | | Append Node | ${nodes['DUT2']} | filter_list=${iface_model_list} | | Append Node | ${nodes['TG']} | | Compute Path | | ${tg_if1} | ${tg}= | Next Interface | | ${dut1_if1} | ${dut1}= | Next Interface | | ${dut1_if2} | ${dut1}= | Next Interface | | ${dut2_if1} | ${dut2}= | Next Interface | | ${dut2_if2} | ${dut2}= | Next Interface | | ${tg_if2} | ${tg}= | Next Interface | | Set Suite Variable | ${tg} | | Set Suite Variable | ${tg_if1} | | Set Suite Variable | ${tg_if2} | | Set Suite Variable | ${dut1} | | Set Suite Variable | ${dut1_if1} | | Set Suite Variable | ${dut1_if2} | | Set Suite Variable | ${dut2} | | Set Suite Variable | ${dut2_if1} | | Set Suite Variable | ${dut2_if2} | Set variables in 3-node circular topology with DUT interface model with double link between DUTs | | [Documentation] | | ... | Compute path for testing on three given nodes in circular topology | | ... | with double link between DUTs based on interface model provided as an | | ... | argument and set corresponding suite variables. | | ... | | ... | *Arguments:* | | ... | - iface_model - Interface model. Type: string | | ... | | ... | _NOTE:_ This KW sets following suite variables: | | ... | - tg - TG node | | ... | - tg_if1 - TG interface towards DUT1. | | ... | - tg_if2 - TG interface towards DUT2. | | ... | - dut1 - DUT1 node | | ... | - dut1_if1 - DUT1 interface towards TG. | | ... | - dut1_if2_1 - DUT1 interface 1 towards DUT2. | | ... | - dut1_if2_2 - DUT1 interface 2 towards DUT2. | | ... | - dut2 - DUT2 node | | ... | - dut2_if1_1 - DUT2 interface 1 towards DUT1. | | ... | - dut2_if1_2 - DUT2 interface 2 towards DUT1. | | ... | - dut2_if2 - DUT2 interface towards TG. | | ... | | ... | *Example:* | | ... | | ... | \| Set variables in 3-node circular topology with DUT interface model\ | | ... | with double link between DUTs \| Intel-X520-DA2 \| | | ... | | [Arguments] | ${iface_model} | | ... | | ${iface_model_list}= | Create list | ${iface_model} | | # Compute path TG - DUT1 with single link in between | | Append Node | ${nodes['TG']} | | Append Node | ${nodes['DUT1']} | filter_list=${iface_model_list} | | Append Node | ${nodes['TG']} | | Compute Path | | ${tg_if1} | ${tg}= | Next Interface | | ${dut1_if1} | ${dut1}= | Next Interface | | # Compute path TG - DUT2 with single link in between | | Clear Path | | Append Node | ${nodes['TG']} | | Append Node | ${nodes['DUT2']} | filter_list=${iface_model_list} | | Append Node | ${nodes['TG']} | | Compute Path | | ${tg_if2} | ${tg}= | Next Interface | | ${dut2_if2} | ${dut2}= | Next Interface | | # Compute path DUT1 - DUT2 with double link in between | | Clear Path | | Append Node | ${nodes['DUT1']} | filter_list=${iface_model_list} | | Append Node | ${nodes['DUT2']} | filter_list=${iface_model_list} | | Append Node | ${nodes['DUT1']} | filter_list=${iface_model_list} | | Compute Path | always_same_link=${FALSE} | | ${dut1_if2_1} | ${dut1}= | First Interface | | ${dut1_if2_2} | ${dut1}= | Last Interface | | ${dut2_if1_1} | ${dut2}= | First Ingress Interface | | ${dut2_if1_2} | ${dut2}= | Last Egress Interface | | # Set suite variables | | Set Suite Variable | ${tg} | | Set Suite Variable | ${tg_if1} | | Set Suite Variable | ${tg_if2} | | Set Suite Variable | ${dut1} | | Set Suite Variable | ${dut1_if1} | | Set Suite Variable | ${dut1_if2_1} | | Set Suite Variable | ${dut1_if2_2} | | Set Suite Variable | ${dut2} | | Set Suite Variable | ${dut2_if1_1} | | Set Suite Variable | ${dut2_if1_2} | | Set Suite Variable | ${dut2_if2} | Tear down guest VM with dpdk-testpmd | | [Documentation] | | ... | Stop all qemu processes with dpdk-testpmd running on ${dut_node}. | | ... | Argument is dictionary of all qemu nodes running with its names. | | ... | Dpdk-testpmd is stopped gracefully with printing stats. | | ... | | ... | *Arguments:* | | ... | - dut_node - Node where to clean qemu. Type: dictionary | | ... | - dut_vm_refs - VM references on node. Type: dictionary | | ... | | ... | *Example:* | | ... | | ... | \| Tear down guest VM with dpdk-testpmd \| ${node['DUT1']} \ | | ... | \| ${dut_vm_refs} \| | | ... | | [Arguments] | ${dut_node} | ${dut_vm_refs} | | ${vms_number}= | Get Length | ${dut_vm_refs} | | ${index}= | Set Variable | ${0} | | :FOR | ${vm_name} | IN | @{dut_vm_refs} | | | ${vm}= | Get From Dictionary | ${dut_vm_refs} | ${vm_name} | | | ${index}= | Evaluate | ${index} + 1 | | | Dpdk Testpmd Stop | ${vm} | | | Run Keyword | ${vm_name}.Qemu Set Node | ${dut_node} | | | Run Keyword | ${vm_name}.Qemu Clear Socks | | | Run Keyword If | '${index}' == '${vms_number}' | ${vm_name}.Qemu Kill All | Tear down guest VM | | [Documentation] | | ... | Stop all qemu processes running on ${dut_node}. | | ... | Argument is dictionary of all qemu nodes running with its names. | | ... | | ... | *Arguments:* | | ... | - dut_node - Node where to clean qemu. Type: dictionary | | ... | - dut_vm_refs - VM references on node. Type: dictionary | | ... | | ... | *Example:* | | ... | | ... | \| Tear down guest VM \| ${node['DUT1']} \ | | ... | \| ${dut_vm_refs} \| | | ... | | [Arguments] | ${dut_node} | ${dut_vm_refs} | | ${vms_number}= | Get Length | ${dut_vm_refs} | | ${index}= | Set Variable | ${0} | | :FOR | ${vm_name} | IN | @{dut_vm_refs} | | | ${vm}= | Get From Dictionary | ${dut_vm_refs} | ${vm_name} | | | ${index}= | Evaluate | ${index} + 1 | | | Run Keyword | ${vm_name}.Qemu Set Node | ${dut_node} | | | Run Keyword | ${vm_name}.Qemu Clear Socks | | | Run Keyword If | '${index}' == '${vms_number}' | ${vm_name}.Qemu Kill All # Suite setups | Set up 2-node performance topology with DUT's NIC model | | [Documentation] | | ... | Suite preparation phase that sets the default startup configuration of | | ... | VPP on all DUTs. Updates interfaces on all nodes and sets the global | | ... | variables used in test cases based on interface model provided as an | | ... | argument. Initializes traffic generator. | | ... | | ... | *Arguments:* | | ... | - topology_type - Topology type. Type: string | | ... | - nic_model - Interface model. Type: string | | ... | | ... | *Example:* | | ... | | ... | \| 2-node Performance Suite Setup \| L2 \| Intel-X520-DA2 \| | | ... | | [Arguments] | ${topology_type} | ${nic_model} | | ... | | Set variables in 2-node circular topology with DUT interface model | | ... | ${nic_model} | | Initialize traffic generator | ${tg} | ${tg_if1} | ${tg_if2} | | ... | ${dut1} | ${dut1_if1} | ${dut1} | ${dut1_if2} | ${topology_type} | Set up 2-node-switched performance topology with DUT's NIC model | | [Documentation] | | ... | Suite preparation phase that sets the default startup configuration of | | ... | VPP on all DUTs. Updates interfaces on all nodes and sets the global | | ... | variables used in test cases based on interface model provided as an | | ... | argument. Initializes traffic generator. | | ... | | ... | *Arguments:* | | ... | - topology_type - Topology type. Type: string | | ... | - nic_model - Interface model. Type: string | | ... | - tg_if1_dest_mac - Interface 1 destination MAC address. Type: string | | ... | - tg_if2_dest_mac - Interface 2 destination MAC address. Type: string | | ... | | ... | *Example:* | | ... | | ... | \| 2-node Performance Suite Setup \| L2 \| Intel-X520-DA2 \ | | ... | \| 22:22:33:44:55:66 \| 22:22:33:44:55:55 \| | | ... | | [Arguments] | ${topology_type} | ${nic_model} | ${tg_if1_dest_mac} | | ... | ${tg_if2_dest_mac} | | ... | | Set variables in 2-node circular topology with DUT interface model | | ... | ${nic_model} | | Initialize traffic generator | ${tg} | ${tg_if1} | ${tg_if2} | | ... | ${dut1} | ${dut1_if1} | ${dut1} | ${dut1_if2} | ${topology_type} | | ... | ${tg_if1_dest_mac} | ${tg_if2_dest_mac} | Set up 3-node performance topology with DUT's NIC model | | [Documentation] | | ... | Suite preparation phase that sets the default startup configuration of | | ... | VPP on all DUTs. Updates interfaces on all nodes and sets the global | | ... | variables used in test cases based on interface model provided as an | | ... | argument. Initializes traffic generator. | | ... | | ... | *Arguments:* | | ... | - topology_type - Topology type. Type: string | | ... | - nic_model - Interface model. Type: string | | ... | | ... | *Example:* | | ... | | ... | \| Set up 3-node performance topology with DUT's NIC model \| L2 \ | | ... | \| Intel-X520-DA2 \| | | ... | | [Arguments] | ${topology_type} | ${nic_model} | | ... | | Set variables in 3-node circular topology with DUT interface model | | ... | ${nic_model} | | Initialize traffic generator | ${tg} | ${tg_if1} | ${tg_if2} | | ... | ${dut1} | ${dut1_if1} | ${dut2} | ${dut2_if2} | ${topology_type} | Set up 3-node performance topology with DUT's NIC model with double link between DUTs | | [Documentation] | | ... | Suite preparation phase that sets the default startup configuration of | | ... | VPP on all DUTs. Updates interfaces on all nodes and sets the global | | ... | variables used in test cases based on interface model provided as an | | ... | argument. Initializes traffic generator. | | ... | | ... | *Arguments:* | | ... | - topology_type - Topology type. Type: string | | ... | - nic_model - Interface model. Type: string | | ... | | ... | *Example:* | | ... | | ... | \| Set up 3-node performance topology with DUT's NIC model with \ | | ... | double link between DUTs \| L2 \| Intel-X520-DA2 \| | | ... | | [Arguments] | ${topology_type} | ${nic_model} | | ... | | Set variables in 3-node circular topology with DUT interface model with double link between DUTs | | ... | ${nic_model} | | Initialize traffic generator | ${tg} | ${tg_if1} | ${tg_if2} | | ... | ${dut1} | ${dut1_if1} | ${dut2} | ${dut2_if2} | ${topology_type} | Set up DPDK 2-node performance topology with DUT's NIC model | | [Documentation] | | ... | Updates interfaces on all nodes and sets the global | | ... | variables used in test cases based on interface model provided as an | | ... | argument. Initializes traffic generator. Initializes DPDK test | | ... | environment. | | ... | | ... | *Arguments:* | | ... | - topology_type - Topology type. Type: string | | ... | - nic_model - Interface model. Type: string | | ... | | ... | *Example:* | | ... | | ... | \| Set up DPDK 2-node performance topology with DUT's NIC model \ | | ... | \| L2 \| Intel-X520-DA2 \| | | ... | | [Arguments] | ${topology_type} | ${nic_model} | | ... | | Set variables in 2-node circular topology with DUT interface model | | ... | ${nic_model} | | Initialize traffic generator | ${tg} | ${tg_if1} | ${tg_if2} | | ... | ${dut1} | ${dut1_if1} | ${dut1} | ${dut1_if2} | ${topology_type} | | Initialize DPDK Environment | ${dut1} | ${dut1_if1} | ${dut1_if2} | Set up DPDK 3-node performance topology with DUT's NIC model | | [Documentation] | | ... | Updates interfaces on all nodes and sets the global | | ... | variables used in test cases based on interface model provided as an | | ... | argument. Initializes traffic generator. Initializes DPDK test | | ... | environment. | | ... | | ... | *Arguments:* | | ... | - topology_type - Topology type. Type: string | | ... | - nic_model - Interface model. Type: string | | ... | | ... | *Example:* | | ... | | ... | \| 3-node Performance Suite Setup \| L2 \| Intel-X520-DA2 \| | | ... | | [Arguments] | ${topology_type} | ${nic_model} | | ... | | Set variables in 3-node circular topology with DUT interface model | | ... | ${nic_model} | | Initialize traffic generator | ${tg} | ${tg_if1} | ${tg_if2} | | ... | ${dut1} | ${dut1_if1} | ${dut2} | ${dut2_if2} | ${topology_type} | | Initialize DPDK Environment | ${dut1} | ${dut1_if1} | ${dut1_if2} | | Initialize DPDK Environment | ${dut2} | ${dut2_if1} | ${dut2_if2} | Set up SRIOV 2-node performance topology with DUT's NIC model | | [Documentation] | | ... | Suite preparation phase that sets default startup configuration of | | ... | VPP on all DUTs. Updates interfaces on all nodes and sets global | | ... | variables used in test cases based on interface model provided as an | | ... | argument. Initializes traffic generator. | | ... | It configures PCI device with VFs on all DUTs. | | ... | | ... | *Arguments:* | | ... | - topology_type - Topology type. Type: string | | ... | - nic_model - Interface model. Type: string | | ... | - vf_driver - Virtual function driver. Type: string | | ... | - numvfs - Number of VFs. Type: integer | | ... | | ... | *Example:* | | ... | | ... | \| Set up SRIOV 2-node performance topology with DUT's NIC model \ | | ... | \| L2 \| Intel-X520-DA2 \| AVF \| | | ... | | [Arguments] | ${topology_type} | ${nic_model} | ${vf_driver} | | ... | ${numvfs}=${1} | | ... | | Set variables in 2-node circular topology with DUT interface model | | ... | ${nic_model} | | Run Keyword If | '${vf_driver}' == 'AVF' | | ... | Configure AVF interfaces on all DUTs | numvfs=${numvfs} | | ... | topology_type=${topology_type} | | Initialize traffic generator | ${tg} | ${tg_if1} | ${tg_if2} | | ... | ${dut1} | ${dut1_if1_vf0} | ${dut1} | ${dut1_if2_vf0} | | ... | ${topology_type} | Set up SRIOV 3-node performance topology with DUT's NIC model | | [Documentation] | | ... | Suite preparation phase that sets default startup configuration of | | ... | VPP on all DUTs. Updates interfaces on all nodes and sets global | | ... | variables used in test cases based on interface model provided as an | | ... | argument. Initializes traffic generator. | | ... | It configures PCI device with VFs on all DUTs. | | ... | | ... | *Arguments:* | | ... | - topology_type - Topology type. Type: string | | ... | - nic_model - Interface model. Type: string | | ... | - vf_driver - Virtual function driver. Type: string | | ... | - numvfs - Number of VFs. Type: integer | | ... | | ... | *Example:* | | ... | | ... | \| Set up SRIOV 3-node performance topology with DUT's NIC model \ | | ... | \| L2 \| Intel-X520-DA2 \| AVF \| | | ... | | [Arguments] | ${topology_type} | ${nic_model} | ${vf_driver} | | ... | ${numvfs}=${1} | | ... | | Set variables in 3-node circular topology with DUT interface model | | ... | ${nic_model} | | Run Keyword If | '${vf_driver}' == 'AVF' | | ... | Configure AVF interfaces on all DUTs | numvfs=${numvfs} | | ... | topology_type=${topology_type} | | Initialize traffic generator | ${tg} | ${tg_if1} | ${tg_if2} | | ... | ${dut1} | ${dut1_if1_vf0} | ${dut2} | ${dut2_if2_vf0} | | ... | ${topology_type} | Set up IPSec performance test suite | | [Documentation] | | ... | Suite preparation phase that sets default startup configuration of | | ... | VPP on all DUTs. Updates interfaces on all nodes and sets global | | ... | variables used in test cases based on interface model provided as an | | ... | argument. Initializes traffic generator. | | ... | Then it configures crypto device and kernel module on all DUTs. | | ... | | ... | *Arguments:* | | ... | - topology_type - Topology type. Type: string | | ... | - nic_model - Interface model. Type: string | | ... | - crypto_type - Crypto device type - HW_cryptodev or SW_cryptodev | | ... | (Optional). Type: string, default value: HW_cryptodev | | ... | | ... | *Example:* | | ... | | ... | \| Set up IPSec performance test suite \| L2 \ | | ... | \| Intel-X520-DA2 \| | | ... | | [Arguments] | ${topology_type} | ${nic_model} | ${crypto_type}=HW_cryptodev | | ... | | Set up 3-node performance topology with DUT's NIC model | | ... | ${topology_type} | ${nic_model} | | ${numvfs}= | Set Variable If | | ... | '${crypto_type}' == 'HW_cryptodev' | ${32} | | ... | '${crypto_type}' == 'SW_cryptodev' | ${0} | | Configure crypto device on all DUTs | force_init=${True} | numvfs=${numvfs} | | Run Keyword If | '${crypto_type}' == 'HW_cryptodev' | | ... | Configure kernel module on all DUTs | igb_uio | force_load=${True} | Set up performance topology with containers | | [Documentation] | | ... | Suite preparation phase that starts containers | | ... | | Set Suite Variable | @{container_groups} | @{EMPTY} | | Construct VNF containers on all DUTs | | Acquire all 'VNF' containers | | Create all 'VNF' containers | | Configure VPP in all 'VNF' containers | | Install VPP in all 'VNF' containers | Set up performance test suite with MEMIF | | [Documentation] | | ... | Append memif_plugin.so to the list of enabled plugins. | | ... | | Set Suite Variable | @{plugins_to_enable} | | Append To List | ${plugins_to_enable} | memif_plugin.so | Set up performance test suite with NAT | | [Documentation] | | ... | Append nat_plugin.so to the list of enabled plugins. | | ... | | Set Suite Variable | @{plugins_to_enable} | | Append To List | ${plugins_to_enable} | nat_plugin.so | Set up performance test suite with ACL | | [Documentation] | | ... | Append acl_plugin.so to the list of enabled plugins. | | ... | | Set Suite Variable | @{plugins_to_enable} | | Append To List | ${plugins_to_enable} | acl_plugin.so | Set up performance test suite with AVF driver | | [Documentation] | | ... | Append avf_plugin.so to the list of enabled plugins. | | ... | | Set Suite Variable | @{plugins_to_enable} | | Append To List | ${plugins_to_enable} | avf_plugin.so | Set up performance test suite with Static SRv6 proxy | | [Documentation] | | ... | Append srv6as_plugin.so to the list of enabled plugins. | | ... | | Set Suite Variable | @{plugins_to_enable} | | Append To List | ${plugins_to_enable} | srv6as_plugin.so | Set up performance test suite with Dynamic SRv6 proxy | | [Documentation] | | ... | Append srv6ad_plugin.so to the list of enabled plugins. | | ... | | Set Suite Variable | @{plugins_to_enable} | | Append To List | ${plugins_to_enable} | srv6ad_plugin.so | Set up performance test suite with Masquerading SRv6 proxy | | [Documentation] | | ... | Append srv6am_plugin.so to the list of enabled plugins. | | ... | | Set Suite Variable | @{plugins_to_enable} | | Append To List | ${plugins_to_enable} | srv6am_plugin.so | Set up performance test suite with LACP mode link bonding | | [Documentation] | | ... | Append lacp_plugin.so to the list of enabled plugins. | | ... | | Set Suite Variable | @{plugins_to_enable} | | Append To List | ${plugins_to_enable} | lacp_plugin.so | Set up 3-node performance topology with wrk and DUT's NIC model | | [Documentation] | | ... | Suite preparation phase that sets the default startup configuration of | | ... | VPP on all DUTs. Updates interfaces on all nodes and sets the global | | ... | variables used in test cases based on interface model provided as an | | ... | argument. Installs the traffic generator. | | ... | | ... | *Arguments:* | | ... | - iface_model - Interface model. Type: string | | ... | | ... | *Example:* | | ... | | ... | \| Set up 3-node performance topology with wrk and DUT's NIC model\ | | ... | \| Intel-X520-DA2 \| | | ... | | [Arguments] | ${iface_model} | | ... | | Set variables in 3-node circular topology with DUT interface model | | ... | ${iface_model} | | Iface update numa node | ${tg} # Make sure TRex is stopped | | ${running}= | Is TRex running | ${tg} | | Run keyword if | ${running}==${True} | Teardown traffic generator | ${tg} | | ${curr_driver}= | Get PCI dev driver | ${tg} | | ... | ${tg['interfaces']['${tg_if1}']['pci_address']} | | Run keyword if | '${curr_driver}'!='${None}' | | ... | PCI Driver Unbind | ${tg} | | | ... | ${tg['interfaces']['${tg_if1}']['pci_address']} # Bind tg_if1 to driver specified in the topology | | ${driver}= | Get Variable Value | ${tg['interfaces']['${tg_if1}']['driver']} | | PCI Driver Bind | ${tg} | | ... | ${tg['interfaces']['${tg_if1}']['pci_address']} | ${driver} # Set IP on tg_if1 | | ${intf_name}= | Get Linux interface name | ${tg} | | ... | ${tg['interfaces']['${tg_if1}']['pci_address']} | | Set Linux interface IP | ${tg} | ${intf_name} | 192.168.10.1 | 24 | | Set Linux interface IP | ${tg} | ${intf_name} | 192.168.20.1 | 24 | | Set Linux interface IP | ${tg} | ${intf_name} | 192.168.30.1 | 24 | | Set Linux interface IP | ${tg} | ${intf_name} | 192.168.40.1 | 24 | | Set Linux interface IP | ${tg} | ${intf_name} | 192.168.50.1 | 24 | | Set Linux interface IP | ${tg} | ${intf_name} | 192.168.60.1 | 24 | | Set Linux interface IP | ${tg} | ${intf_name} | 192.168.70.1 | 24 | | Set Linux interface IP | ${tg} | ${intf_name} | 192.168.80.1 | 24 | | Set Linux interface up | ${tg} | ${intf_name} | | Install wrk | ${tg} # Suite teardowns | Tear down 2-node performance topology | | [Documentation] | | ... | Suite teardown phase with traffic generator teardown. | | ... | | Teardown traffic generator | ${tg} | Tear down 2-node performance topology with container | | [Documentation] | | ... | Suite teardown phase with traffic generator teardown and container | | ... | destroy. | | ... | | Teardown traffic generator | ${tg} | | :FOR | ${group} | IN | @{container_groups} | | | Destroy all '${group}' containers | Tear down 3-node performance topology | | [Documentation] | | ... | Suite teardown phase with traffic generator teardown. | | ... | | Teardown traffic generator | ${tg} | Tear down 3-node performance topology with container | | [Documentation] | | ... | Suite teardown phase with traffic generator teardown and container | | ... | destroy. | | ... | | Teardown traffic generator | ${tg} | | :FOR | ${group} | IN | @{container_groups} | | | Destroy all '${group}' containers # Tests setups | Set up performance test | | [Documentation] | Common test setup for performance tests. | | ... | | Reset VAT History On All DUTs | ${nodes} | | Create base startup configuration of VPP on all DUTs | Set up tcp performance test | | [Documentation] | Common test setup for TCP performance tests. | | ... | | Reset VAT History On All DUTs | ${nodes} | | Create base startup configuration of VPP for TCP tests on all DUTs | Set up performance test with Ligato Kubernetes | | [Documentation] | Common test setup for performance tests with Ligato \ | | ... | Kubernetes. | | ... | | Apply Kubernetes resource on all duts | ${nodes} | namespaces/csit.yaml | | Apply Kubernetes resource on all duts | ${nodes} | pods/kafka.yaml | | Apply Kubernetes resource on all duts | ${nodes} | pods/etcdv3.yaml | | Apply Kubernetes resource on all duts | ${nodes} | | ... | configmaps/vswitch-agent-cfg.yaml | | Apply Kubernetes resource on all duts | ${nodes} | | ... | configmaps/vnf-agent-cfg.yaml | | Apply Kubernetes resource on all duts | ${nodes} | | ... | pods/contiv-sfc-controller.yaml | | Apply Kubernetes resource on all duts | ${nodes} | | ... | pods/contiv-vswitch.yaml # Tests teardowns | Tear down performance discovery test | | [Documentation] | Common test teardown for ndrdisc and pdrdisc performance \ | | ... | tests. | | ... | | ... | *Arguments:* | | ... | - rate - Rate for sending packets. Type: string | | ... | - framesize - L2 Frame Size [B]. Type: integer | | ... | - topology_type - Topology type. Type: string | | ... | | ... | *Example:* | | ... | | ... | \| Tear down performance discovery test \| 4.0mpps \| 64 \ | | ... | \| 3-node-IPv4 \| | | ... | | [Arguments] | ${rate} | ${framesize} | ${topology_type} | | ... | | Remove All Added Ports On All DUTs From Topology | ${nodes} | | Show VAT History On All DUTs | ${nodes} | | Run Keyword If Test Failed | | ... | Set Test Variable | ${pkt_trace} | ${True} | | Run Keyword If Test Failed | | ... | Traffic should pass with no loss | ${perf_trial_duration} | ${rate} | | ... | ${framesize} | ${topology_type} | fail_on_loss=${False} | Tear down performance ndrchk test | | [Documentation] | Common test teardown for ndrchk performance tests. | | ... | | Remove All Added Ports On All DUTs From Topology | ${nodes} | | Show VAT History On All DUTs | ${nodes} | Tear down performance pdrchk test | | [Documentation] | Common test teardown for pdrchk performance tests. | | ... | | Remove All Added Ports On All DUTs From Topology | ${nodes} | | Show VAT History On All DUTs | ${nodes} | Tear down performance mrr test | | [Documentation] | Common test teardown for max-received-rate performance | | ... | tests. | | ... | | Remove All Added Ports On All DUTs From Topology | ${nodes} | | Show VAT History On All DUTs | ${nodes} | Tear down performance test with wrk | | [Documentation] | Common test teardown for ndrdisc and pdrdisc performance \ | | ... | tests. | | ... | | ... | *Example:* | | ... | | ... | \| Tear down performance test with wrk \| | | ... | | Remove All Added Ports On All DUTs From Topology | ${nodes} | | Show VAT History On All DUTs | ${nodes} | | Show statistics on all DUTs | ${nodes} | Tear down performance test with vhost and VM with dpdk-testpmd | | [Documentation] | Common test teardown for performance tests which use | | ... | vhost(s) and VM(s) with dpdk-testpmd. | | ... | | ... | *Arguments:* | | ... | - rate - Rate for sending packets. Type: string | | ... | - framesize - L2 Frame Size [B]. Type: integer | | ... | - topology_type - Topology type. Type: string | | ... | - dut1_node - Node where to clean qemu. Type: dictionary | | ... | - dut1_vm_refs - VM references on node. Type: dictionary | | ... | - dut2_node - Node where to clean qemu. Type: dictionary | | ... | - dut2_vm_refs - VM references on node. Type: dictionary | | ... | | ... | *Example:* | | ... | | ... | \| Tear down performance test with vhost and VM with dpdk-testpmd \ | | ... | \| 4.0mpps \| 64 \| 3-node-IPv4 \| ${node['DUT1']} \| ${dut_vm_refs} \ | | ... | \| ${node['DUT2']} \| ${dut_vm_refs} \| | | ... | | [Arguments] | ${rate} | ${framesize} | ${topology_type} | | ... | ${dut1_node}=${None} | ${dut1_vm_refs}=${None} | | ... | ${dut2_node}=${None} | ${dut2_vm_refs}=${None} | | ... | | Remove All Added Ports On All DUTs From Topology | ${nodes} | | Show VAT History On All DUTs | ${nodes} | | Show VPP vhost on all DUTs | ${nodes} | | Show statistics on all DUTs | ${nodes} | | Run Keyword If Test Failed | | ... | Traffic should pass with no loss | ${perf_trial_duration} | ${rate} | | ... | ${framesize} | ${topology_type} | fail_on_loss=${False} | | Run keyword unless | ${dut1_node}==${None} | | ... | Tear down guest VM with dpdk-testpmd | ${dut1} | ${dut1_vm_refs} | | Run keyword unless | ${dut2_node}==${None} | | ... | Tear down guest VM with dpdk-testpmd | ${dut2} | ${dut2_vm_refs} | Tear down mrr test with vhost and VM with dpdk-testpmd | | [Documentation] | Common test teardown for mrr tests which use | | ... | vhost(s) and VM(s) with dpdk-testpmd. | | ... | | ... | *Arguments:* | | ... | - dut1_node - Node where to clean qemu. Type: dictionary | | ... | - dut1_vm_refs - VM references on node. Type: dictionary | | ... | - dut2_node - Node where to clean qemu. Type: dictionary | | ... | - dut2_vm_refs - VM references on node. Type: dictionary | | ... | | ... | *Example:* | | ... | | ... | \| Tear down performance test with vhost and VM with dpdk-testpmd \ | | ... | \| ${node['DUT1']} \| ${dut_vm_refs} \ | | ... | \| ${node['DUT2']} \| ${dut_vm_refs} \| | | ... | | [Arguments] | ${dut1_node}=${None} | ${dut1_vm_refs}=${None} | | ... | ${dut2_node}=${None} | ${dut2_vm_refs}=${None} | | ... | | Remove All Added Ports On All DUTs From Topology | ${nodes} | | Show VAT History On All DUTs | ${nodes} | | Show VPP vhost on all DUTs | ${nodes} | | Show statistics on all DUTs | ${nodes} | | Run keyword unless | ${dut1_node}==${None} | | ... | Tear down guest VM with dpdk-testpmd | ${dut1} | ${dut1_vm_refs} | | Run keyword unless | ${dut2_node}==${None} | | ... | Tear down guest VM with dpdk-testpmd | ${dut2} | ${dut2_vm_refs} | Tear down performance test with vhost and VM with dpdk-testpmd and ACL | | [Documentation] | Common test teardown for performance tests which use | | ... | vhost(s) and VM(s) with ACL and dpdk-testpmd. | | ... | | ... | *Arguments:* | | ... | - rate - Rate for sending packets. Type: string | | ... | - framesize - L2 Frame Size [B]. Type: integer | | ... | - topology_type - Topology type. Type: string | | ... | - dut1_node - Node where to clean qemu. Type: dictionary | | ... | - dut1_vm_refs - VM references on node. Type: dictionary | | ... | - dut2_node - Node where to clean qemu. Type: dictionary | | ... | - dut2_vm_refs - VM references on node. Type: dictionary | | ... | | [Arguments] | ${rate} | ${framesize} | ${topology_type} | | ... | ${dut1_node}=${None} | ${dut1_vm_refs}=${None} | | ... | ${dut2_node}=${None} | ${dut2_vm_refs}=${None} | | ... | | Tear down performance test with vhost and VM with dpdk-testpmd | | ... | ${rate} | ${framesize} | ${topology_type} | | ... | ${dut1_node} | ${dut1_vm_refs} | | ... | ${dut2_node} | ${dut2_vm_refs} | | Vpp Log Plugin Acl Settings | ${dut1} | | Run Keyword If Test Failed | Run Keyword And Ignore Error | | ... | Vpp Log Plugin Acl Interface Assignment | ${dut1} | Tear down mrr test with vhost and VM with dpdk-testpmd and ACL | | [Documentation] | Common test teardown for mrr tests which use | | ... | vhost(s) and VM(s) with ACL and dpdk-testpmd. | | ... | | ... | *Arguments:* | | ... | - dut1_node - Node where to clean qemu. Type: dictionary | | ... | - dut1_vm_refs - VM references on node. Type: dictionary | | ... | - dut2_node - Node where to clean qemu. Type: dictionary | | ... | - dut2_vm_refs - VM references on node. Type: dictionary | | ... | | [Arguments] | ${dut1_node}=${None} | ${dut1_vm_refs}=${None} | | ... | ${dut2_node}=${None} | ${dut2_vm_refs}=${None} | | ... | | Tear down mrr test with vhost and VM with dpdk-testpmd | | ... | ${dut1_node} | ${dut1_vm_refs} | | ... | ${dut2_node} | ${dut2_vm_refs} | | Vpp Log Plugin Acl Settings | ${dut1} | | Run Keyword If Test Failed | Run Keyword And Ignore Error | | ... | Vpp Log Plugin Acl Interface Assignment | ${dut1} | Tear down performance pdrchk test with vhost and VM with dpdk-testpmd | | [Documentation] | Common test teardown for performance pdrchk tests which \ | | ... | use vhost(s) and VM(s) with dpdk-testpmd. | | ... | | ... | *Arguments:* | | ... | - rate - Rate for sending packets. Type: string | | ... | - framesize - L2 Frame Size [B]. Type: integer | | ... | - topology_type - Topology type. Type: string | | ... | - dut1_node - Node where to clean qemu. Type: dictionary | | ... | - dut1_vm_refs - VM references on node. Type: dictionary | | ... | - dut2_node - Node where to clean qemu. Type: dictionary | | ... | - dut2_vm_refs - VM references on node. Type: dictionary | | ... | | ... | *Example:* | | ... | | ... | \| Tear down performance pdrchk test with vhost and VM with \ | | ... | dpdk-testpmd \| 4.0mpps \| 64 \| 3-node-IPv4 \| ${node['DUT1']} \ | | ... | \| ${dut_vm_refs} \| ${node['DUT2']} \| ${dut_vm_refs} \| | | ... | | [Arguments] | ${rate} | ${framesize} | ${topology_type} | | ... | ${dut1_node}=${None} | ${dut1_vm_refs}=${None} | | ... | ${dut2_node}=${None} | ${dut2_vm_refs}=${None} | | ... | | Remove All Added Ports On All DUTs From Topology | ${nodes} | | Show VAT History On All DUTs | ${nodes} | | Show VPP vhost on all DUTs | ${nodes} | | Show statistics on all DUTs | ${nodes} | | Run keyword unless | ${dut1_node}==${None} | | ... | Tear down guest VM with dpdk-testpmd | ${dut1} | ${dut1_vm_refs} | | Run keyword unless | ${dut2_node}==${None} | | ... | Tear down guest VM with dpdk-testpmd | ${dut2} | ${dut2_vm_refs} | Tear down performance mrr test with vhost and VM with dpdk-testpmd | | [Documentation] | Common test teardown for performance mrr tests which \ | | ... | use vhost(s) and VM(s) with dpdk-testpmd. | | ... | | ... | *Arguments:* | | ... | - dut1_node - Node where to clean qemu. Type: dictionary | | ... | - dut1_vm_refs - VM references on node. Type: dictionary | | ... | - dut2_node - Node where to clean qemu. Type: dictionary | | ... | - dut2_vm_refs - VM references on node. Type: dictionary | | ... | | ... | *Example:* | | ... | | ... | \| Tear down performance mrr test with vhost and VM with \ | | ... | dpdk-testpmd \| ${node['DUT1']} \| ${dut_vm_refs} \| ${node['DUT2']} \ | | ... | \| ${dut_vm_refs} \| | | ... | | [Arguments] | ${dut1_node}=${None} | ${dut1_vm_refs}=${None} | | ... | ${dut2_node}=${None} | ${dut2_vm_refs}=${None} | | ... | | Remove All Added Ports On All DUTs From Topology | ${nodes} | | Show VAT History On All DUTs | ${nodes} | | Show VPP vhost on all DUTs | ${nodes} | | Run keyword unless | ${dut1_node}==${None} | | ... | Tear down guest VM with dpdk-testpmd | ${dut1} | ${dut1_vm_refs} | | Run keyword unless | ${dut2_node}==${None} | | ... | Tear down guest VM with dpdk-testpmd | ${dut2} | ${dut2_vm_refs} | Tear down DPDK 2-node performance topology | | [Documentation] | | ... | Suite teardown phase with traffic generator teardown. | | ... | Cleanup DPDK test environment. | | ... | | Teardown traffic generator | ${tg} | | Cleanup DPDK Environment | ${dut1} | ${dut1_if1} | ${dut1_if2} | Tear down DPDK 3-node performance topology | | [Documentation] | | ... | Suite teardown phase with traffic generator teardown. | | ... | Cleanup DPDK test environment. | | ... | | Teardown traffic generator | ${tg} | | Cleanup DPDK Environment | ${dut1} | ${dut1_if1} | ${dut1_if2} | | Cleanup DPDK Environment | ${dut2} | ${dut2_if1} | ${dut2_if2} | Tear down performance discovery test with NAT | | [Documentation] | Common test teardown for ndrdisc and pdrdisc performance \ | | ... | tests with NAT feature used. | | ... | | ... | *Arguments:* | | ... | - rate - Rate for sending packets. Type: string | | ... | - framesize - L2 Frame Size [B]. Type: integer | | ... | - traffic_profile - Traffic profile. Type: string | | ... | | ... | *Example:* | | ... | | ... | \| Tear down performance discovery test with NAT \| 100000pps \| 64 \ | | ... | \| ${traffic_profile} \| | | ... | | [Arguments] | ${rate} | ${framesize} | ${traffic_profile} | | ... | | Tear down performance discovery test | ${rate} | ${framesize} | | ... | ${traffic_profile} | | Show NAT verbose | ${dut1} | | Show NAT verbose | ${dut2} | Tear down mrr test with NAT | | [Documentation] | Common test teardown for mrr performance \ | | ... | tests with NAT feature used. | | ... | | ... | \| Tear down mrr test with NAT \| | | ... | | Tear down performance mrr test | | Show NAT verbose | ${dut1} | | Show NAT verbose | ${dut2} | Tear down performance test with ACL | | [Documentation] | Common test teardown for ndrdisc and pdrdisc performance \ | | ... | tests with ACL feature used. | | ... | | ... | *Arguments:* | | ... | - rate - Rate for sending packets. Type: string | | ... | - framesize - L2 Frame Size [B]. Type: integer | | ... | - traffic_profile - Traffic profile. Type: string | | ... | | ... | *Example:* | | ... | | ... | \| Tear down performance test with ACL \| 100000pps \| 64 \ | | ... | \| ${traffic_profile} \| | | ... | | [Arguments] | ${rate} | ${framesize} | ${traffic_profile} | | ... | | Tear down performance discovery test | ${rate} | ${framesize} | | ... | ${traffic_profile} | | Vpp Log Plugin Acl Settings | ${dut1} | | Run Keyword If Test Failed | Run Keyword And Ignore Error | | ... | Vpp Log Plugin Acl Interface Assignment | ${dut1} | Tear down mrr test with ACL | | [Documentation] | Common test teardown for mrr performance \ | | ... | tests with ACL feature used. | | ... | | ... | *Example:* | | ... | | ... | \| Tear down mrr test with ACL \| | | ... | | Tear down performance mrr test | | Vpp Log Plugin Acl Settings | ${dut1} | | Run Keyword If Test Failed | Run Keyword And Ignore Error | | ... | Vpp Log Plugin Acl Interface Assignment | ${dut1} | Tear down performance test with MACIP ACL | | [Documentation] | Common test teardown for ndrdisc and pdrdisc performance \ | | ... | tests with MACIP ACL feature used. | | ... | | ... | *Arguments:* | | ... | - rate - Rate for sending packets. Type: string | | ... | - framesize - L2 Frame Size [B]. Type: integer | | ... | - traffic_profile - Traffic profile. Type: string | | ... | | ... | *Example:* | | ... | | ... | \| Tear down performance test with MACIP ACL \| 100000pps \| 64 \ | | ... | \| ${traffic_profile} \| | | ... | | [Arguments] | ${rate} | ${framesize} | ${traffic_profile} | | ... | | Tear down performance discovery test | ${rate} | ${framesize} | | ... | ${traffic_profile} | | Run Keyword If Test Failed | Run Keyword And Ignore Error | | ... | Vpp Log Macip Acl Settings | ${dut1} | | Run Keyword And Ignore Error | | ... | Vpp Log Macip Acl Interface Assignment | ${dut1} | Tear down mrr test with MACIP ACL | | [Documentation] | Common test teardown for mrr performance \ | | ... | tests with MACIP ACL feature used. | | ... | | ... | *Example:* | | ... | | ... | \| Tear down mrr test with MACIP ACL \| | | ... | | Tear down performance mrr test | | Run Keyword If Test Failed | Run Keyword And Ignore Error | | ... | Vpp Log Macip Acl Settings | ${dut1} | | Run Keyword And Ignore Error | | ... | Vpp Log Macip Acl Interface Assignment | ${dut1} | Tear down performance test with Ligato Kubernetes | | [Documentation] | Common test teardown for ndrdisc and pdrdisc performance \ | | ... | tests with Ligato Kubernetes. | | ... | | Run Keyword If Test Failed | | ... | Get Kubernetes logs on all DUTs | ${nodes} | csit | | Run Keyword If Test Failed | | ... | Describe Kubernetes resource on all DUTs | ${nodes} | csit | | Delete Kubernetes resource on all DUTs | ${nodes} | csit | Tear down performance test with SRv6 with encapsulation | | [Documentation] | Common test teardown for ndrdisc and pdrdisc performance \ | | ... | tests with SRv6 with encapsulation feature used. | | ... | | ... | *Arguments:* | | ... | - rate - Rate for sending packets. Type: string | | ... | - framesize - L2 Frame Size [B]. Type: integer/string | | ... | - traffic_profile - Traffic profile. Type: string | | ... | | ... | *Example:* | | ... | | ... | \| Tear down performance test with SRv6 with encapsulation \ | | ... | \| 100000pps \| 64 \| ${traffic_profile} \| | | ... | | [Arguments] | ${rate} | ${framesize} | ${traffic_profile} | | ... | | Tear down performance discovery test | ${rate} | ${framesize} | | ... | ${traffic_profile} | | Run Keyword If Test Failed | Show SR Policies on all DUTs | ${nodes} | | Run Keyword If Test Failed | | ... | Show SR Steering Policies on all DUTs | ${nodes} | | Run Keyword If Test Failed | Show SR LocalSIDs on all DUTs | ${nodes} | Tear down mrr test with SRv6 with encapsulation | | [Documentation] | Common test teardown for mrr tests with SRv6 with \ | | ... | encapsulation feature used. | | ... | | ... | *Example:* | | ... | | ... | \| Tear down mrr test with SRv6 with encapsulation \| | | ... | | Remove All Added Ports On All DUTs From Topology | ${nodes} | | Show VAT History On All DUTs | ${nodes} | | Run Keyword If Test Failed | Show SR Policies on all DUTs | ${nodes} | | Run Keyword If Test Failed | | ... | Show SR Steering Policies on all DUTs | ${nodes} | | Run Keyword If Test Failed | Show SR LocalSIDs on all DUTs | ${nodes}