# Copyright (c) 2023 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
| Resource | resources/libraries/robot/ip/nat.robot
| Resource | resources/libraries/robot/shared/traffic.robot
|
| Force Tags | 2_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | NDRPDR
| ... | NIC_Intel-X710 | ETH | IP4FWD | FEATURE | NAT44 | TCP | TCP_CPS
| ... | NAT44_ENDPOINT_DEPENDENT | SCALE | HOSTS_1024 | DRV_VFIO_PCI
| ... | RXQ_SIZE_0 | TXQ_SIZE_0
| ... | ethip4tcp-nat44ed-h1024-p63-s64512-cps
|
| 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-ed
|
| Test Template | Local Template
|
| Documentation | **CPS on empty TCP transactions with NAT44ED**
| ... |
| ... | - **[Top] Network Topologies:** TG-DUT1-TG 2-node circular topology \
| ... | with single links between nodes.
| ... |
| ... | - **[Enc] Packet Encapsulations:** Eth-IPv4-TCP for IPv4 routing.
| ... |
| ... | - **[Cfg] DUT configuration:** DUT1 is configured with IPv4 routing \
| ... | and one static IPv4 /18 route entries. \
| ... | DUT1 is tested with ${nic_name}.
| ... |
| ... | - **[Ver] TG verification:** TG finds and reports throughput NDR (Non \
| ... | Drop Rate) with zero packet loss tolerance and throughput PDR \
| ... | (Partial Drop Rate) with non-zero packet loss tolerance (LT) \
| ... | expressed in percentage of packets transmitted. NDR and PDR are \
| ... | discovered for different Ethernet L2 frame sizes using MLRsearch \
| ... | library.
| ... | Test packets are generated by TG on links to DUTs. TG traffic profile \
| ... | contain L7 flows (${cps} bi-directional TCP flows) with all packets \
| ... | containing Ethernet header, IPv4 header with TCP header and static \
| ... | payload. MAC addresses are matching MAC addresses of the TG node \
| ... | interfaces.
| ... |
| ... | - **[Ref] Applicable standard specifications:** Benchmarking \
| ... | Methodology for Network Security Device Performance \
| ... | (draft-ietf-bmwg-ngfw-performance-03).

*** Variables ***
| @{plugins_to_enable}= | dpdk_plugin.so | perfmon_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}= | L7
| ${overhead}= | ${0}
# IP settings
| ${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}= | ${24}
| ${dut1_if2_ip4}= | 12.0.0.1
| ${dut1_if2_mask}= | ${24}
| ${dest_net}= | 20.0.0.0
| ${dest_mask}= | ${22}
# NAT settings
| ${nat_mode}= | endpoint-dependent
| ${in_net}= | 192.168.0.0
| ${in_mask}= | ${22}
| ${out_net}= | 68.142.68.0
| ${out_net_end}= | 68.142.68.0
| ${out_mask}= | ${32}
# Scale settings
| ${n_hosts}= | ${1024}
| ${n_ports}= | ${63}
| ${n_sessions}= | ${${n_hosts} * ${n_ports}}
| ${transaction_scale}= | ${n_sessions}
| ${packets_per_transaction_and_direction}= | ${4}
| ${packets_per_transaction_aggregated}= | ${7}
# Traffic profile
| ${traffic_profile}= | trex-astf-ethip4tcp-${n_hosts}h
| ${transaction_type}= | tcp_cps
| ${disable_latency}= | ${True}

*** Keywords ***
| Local Template
| |
| | [Documentation]
| | ... | - **[Cfg]** DUT runs NAT44 ${nat_mode} configuration. \
| | ... | 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}
| | ${pre_stats}= | Create List
| | ... | vpp-clear-stats | vpp-enable-packettrace | vpp-enable-elog
| | ... | vpp-clear-runtime
| | Set Test Variable | ${pre_stats}
| | ${post_stats}= | Create List
| | ... | vpp-show-stats | vpp-show-packettrace | vpp-show-elog
| | ... | vpp-show-runtime
| | Set Test Variable | ${post_stats}
| |
| | Given Set Max Rate And Jumbo
| | And Add worker threads to all DUTs | ${phy_cores} | ${rxq}
| | And Pre-initialize layer driver | ${nic_driver}
| | And Apply startup configuration on all VPP DUTs
| | When Initialize layer driver | ${nic_driver}
| | And Initialize layer interface
| | And Initialize IPv4 forwarding for NAT44 in circular topology
| | And Initialize NAT44 endpoint-dependent mode in circular topology
| | Then Find NDR and PDR intervals using optimized search

*** Test Cases ***
| 64B-1c-ethip4tcp-nat44ed-h1024-p63-s64512-cps-ndrpdr
| | [Tags] | 64B | 1C
| | frame_size=${64} | phy_cores=${1}

| 64B-2c-ethip4tcp-nat44ed-h1024-p63-s64512-cps-ndrpdr
| | [Tags] | 64B | 2C
| | frame_size=${64} | phy_cores=${2}

| 64B-4c-ethip4tcp-nat44ed-h1024-p63-s64512-cps-ndrpdr
| | [Tags] | 64B | 4C
| | frame_size=${64} | phy_cores=${4}