tests/func/bridge_domain/bridge_domain_untagged.robot

   1 # Copyright (c) 2016 Cisco and/or its affiliates.
   2 # Licensed under the Apache License, Version 2.0 (the "License");
   3 # you may not use this file except in compliance with the License.
   4 # You may obtain a copy of the License at:
   5 #
   6 #     http://www.apache.org/licenses/LICENSE-2.0
   7 #
   8 # Unless required by applicable law or agreed to in writing, software
   9 # distributed under the License is distributed on an "AS IS" BASIS,
  10 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  11 # See the License for the specific language governing permissions and
  12 # limitations under the License.
  13
  14 *** Settings ***
  15 | Resource | resources/libraries/robot/default.robot
  16 | Resource | resources/libraries/robot/bridge_domain.robot
  17 | Resource | resources/libraries/robot/testing_path.robot
  18 | Resource | resources/libraries/robot/qemu.robot
  19 | Library  | resources.libraries.python.Trace
  20 | Force Tags | HW_ENV | VM_ENV
  21 | Test Setup | Run Keywords | Setup all DUTs before test
  22 | ...        | AND          | Setup all TGs before traffic script
  23 | Test Teardown | Run Keywords | Show Packet Trace on All DUTs | ${nodes}
  24 | ...           | AND          | Show vpp trace dump on all DUTs
  25 | Documentation | *L2 bridge-domain test cases*
  26 | ...
  27 | ... | *[Top] Network Topologies:* TG=DUT1 2-node topology with two links
  28 | ... | between nodes; TG-DUT1-DUT2-TG 3-node circular topology with
  29 | ... | single links between nodes; TG=DUT1=DUT2=TG 3-node circular
  30 | ... | topology with double parallel links and TG=DUT=VM 3-node topology
  31 | ... | with VM and double parallel links.
  32 | ... | *[Enc] Packet Encapsulations:* Eth-IPv4-ICMPv4 for L2 switching of
  33 | ... | IPv4; Eth-IPv6-ICMPv6 for L2 switching of IPv6 use. Both apply
  34 | ... | to all links.
  35 | ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with L2
  36 | ... | bridge-domain (L2BD) switching combined with static MACs; MAC
  37 | ... | learning enabled and Split Horizon Groups (SHG) depending on
  38 | ... | test case.
  39 | ... | *[Ver] TG verification:* Test ICMPv4 (or ICMPv6) Echo Request packets
  40 | ... | are sent in both directions by TG on links to DUT1 and DUT2; on
  41 | ... | receive TG verifies packets for correctness and their IPv4 (IPv6)
  42 | ... | src-addr, dst-addr and MAC addresses.
  43 | ... | *[Ref] Applicable standard specifications:*
  44
  45 *** Variables ***
  46 | ${bd_id1}= | 1
  47 | ${bd_id2}= | 2
  48 | ${shg1}= | 3
  49 | ${shg2}= | 4
  50 | ${sock1}= | /tmp/sock1
  51 | ${sock2}= | /tmp/sock2
  52
  53 *** Test Cases ***
  54 | TC01: DUT reports active interfaces
  55 | | [Documentation]
  56 | | ... | [Top] TG=DUT1; TG-DUT1-DUT2-TG. [Enc] None. [Cfg] Discovered \
  57 | | ... | active interfaces. [Ver] Report active interfaces on DUT. [Ref]
  58 | | [Tags] | 3_NODE_DOUBLE_LINK_TOPO | 3_NODE_SINGLE_LINK_TOPO
  59 | | VPP reports interfaces on | ${nodes['DUT1']}
  60
  61 | TC02: DUT with L2BD (MAC learning) switch ICMPv4 between two TG links
  62 | | [Documentation]
  63 | | ... | [Top] TG=DUT1. [Enc] Eth-IPv4-ICMPv4. [Cfg] On DUT1 configure \
  64 | | ... | two i/fs into L2BD with MAC learning. [Ver] Make TG verify
  65 | | ... | ICMPv4 Echo Req pkts are switched thru DUT1 in both directions
  66 | | ... | and are correct on receive. [Ref]
  67 | | [Tags] | 3_NODE_DOUBLE_LINK_TOPO
  68 | | Given Path for 2-node testing is set
  69 | | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['TG']}
  70 | | And Interfaces in 2-node path are up
  71 | | When Bridge domain on DUT node is created | ${dut_node} | ${bd_id1}
  72 | | And Interface is added to bridge domain | ${dut_node} | ${dut_to_tg_if1}
  73 | | ...                                     | ${bd_id1}
  74 | | And Interface is added to bridge domain | ${dut_node} | ${dut_to_tg_if2}
  75 | | ...                                     | ${bd_id1}
  76 | | Then Send and receive ICMPv4 bidirectionally | ${tg_node} | ${tg_to_dut_if1}
  77 | | ...                                     | ${tg_to_dut_if2}
  78
  79 | TC03: DUT1 and DUT2 with L2BD (MAC learning) switch between two TG links
  80 | | [Documentation]
  81 | | ... | [Top] TG-DUT1-DUT2-TG. [Enc] Eth-IPv4-ICMPv4. [Cfg] On DUT1 and DUT2 \
  82 | | ... | configure two i/fs into L2BD with MAC learning. [Ver] Make TG
  83 | | ... | verify ICMPv4 Echo Req pkts are switched thru DUT1 and DUT2 in
  84 | | ... | both directions and are correct on receive. [Ref]
  85 | | [Tags] | 3_NODE_SINGLE_LINK_TOPO
  86 | | Given Path for 3-node testing is set
  87 | | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['DUT2']} | ${nodes['TG']}
  88 | | And Interfaces in 3-node path are up
  89 | | When Bridge domain on DUT node is created | ${dut1_node} | ${bd_id1}
  90 | | And Interface is added to bridge domain | ${dut1_node} | ${dut1_to_tg}
  91 | | ...                                     | ${bd_id1}
  92 | | And Interface is added to bridge domain | ${dut1_node} | ${dut1_to_dut2}
  93 | | ...                                     | ${bd_id1}
  94 | | And Bridge domain on DUT node is created | ${dut2_node} | ${bd_id2}
  95 | | And Interface is added to bridge domain | ${dut2_node} | ${dut2_to_tg}
  96 | | ...                                     | ${bd_id2}
  97 | | And Interface is added to bridge domain | ${dut2_node} | ${dut2_to_dut1}
  98 | | ...                                     | ${bd_id2}
  99 | | Then Send and receive ICMPv4 bidirectionally | ${tg_node} | ${tg_to_dut1}
 100 | | ...                                          | ${tg_to_dut2}
 101
 102 | TC04: DUT1 and DUT2 with L2BD (static MACs) switch between two TG links
 103 | | [Documentation]
 104 | | ... | [Top] TG-DUT1-DUT2-TG. [Enc] Eth-IPv4-ICMPv4. [Cfg] On DUT1 and \
 105 | | ... | DUT2 configure two i/fs into L2BD with static MACs. [Ver] Make
 106 | | ... | TG verify ICMPv4 Echo Req pkts are switched thru DUT1 and DUT2
 107 | | ... | in both directions and are correct on receive. [Ref]
 108 | | [Tags] | 3_NODE_SINGLE_LINK_TOPO
 109 | | Given Path for 3-node testing is set
 110 | | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['DUT2']} | ${nodes['TG']}
 111 | | And Interfaces in 3-node path are up
 112 | | When Bridge domain on DUT node is created | ${dut1_node} | ${bd_id1}
 113 | | ...                                       | learn=${FALSE}
 114 | | And Interface is added to bridge domain | ${dut1_node} | ${dut1_to_tg}
 115 | | ...                                     | ${bd_id1}
 116 | | And Interface is added to bridge domain | ${dut1_node} | ${dut1_to_dut2}
 117 | | ...                                     | ${bd_id1}
 118 | | And Destination port is added to L2FIB on DUT node | ${tg_node}
 119 | | ...                                                | ${tg_to_dut1}
 120 | | ...                                                | ${dut1_node}
 121 | | ...                                                | ${dut1_to_tg}
 122 | | ...                                                | ${bd_id1}
 123 | | And Destination port is added to L2FIB on DUT node | ${tg_node}
 124 | | ...                                                | ${tg_to_dut2}
 125 | | ...                                                | ${dut1_node}
 126 | | ...                                                | ${dut1_to_dut2}
 127 | | ...                                                | ${bd_id1}
 128 | | And Bridge domain on DUT node is created | ${dut2_node} | ${bd_id2}
 129 | | ...                                      | learn=${FALSE}
 130 | | And Interface is added to bridge domain | ${dut2_node} | ${dut2_to_tg}
 131 | | ...                                     | ${bd_id2}
 132 | | And Interface is added to bridge domain | ${dut2_node} | ${dut2_to_dut1}
 133 | | ...                                     | ${bd_id2}
 134 | | And Destination port is added to L2FIB on DUT node | ${tg_node}
 135 | | ...                                                | ${tg_to_dut1}
 136 | | ...                                                | ${dut2_node}
 137 | | ...                                                | ${dut2_to_dut1}
 138 | | ...                                                | ${bd_id2}
 139 | | And Destination port is added to L2FIB on DUT node | ${tg_node}
 140 | | ...                                                | ${tg_to_dut2}
 141 | | ...                                                | ${dut2_node}
 142 | | ...                                                | ${dut2_to_tg}
 143 | | ...                                                | ${bd_id2}
 144 | | Then Send and receive ICMPv4 bidirectionally | ${tg_node} | ${tg_to_dut1}
 145 | | ...                                          | ${tg_to_dut2}
 146
 147 | TC05: DUT1 and DUT2 with L2BD (MAC learn) and SHG switch between four TG links
 148 | | [Documentation]
 149 | | ... | [Top] TG=DUT1=DUT2=TG. [Enc] Eth-IPv4-ICMPv4. [Cfg] On DUT1 and \
 150 | | ... | DUT2 configure four i/fs into L2BD with MAC learning and the
 151 | | ... | same SHG on i/fs towards TG. [Ver] Make TG verify ICMPv4 Echo
 152 | | ... | Req pkts are switched thru DUT1 and DUT2 in both directions and
 153 | | ... | are correct on receive; verify no pkts are switched thru SHG
 154 | | ... | isolated interfaces. [Ref]
 155 | | [Tags] | 3_NODE_DOUBLE_LINK_TOPO
 156 | | Given Path for 3-node BD-SHG testing is set | ${nodes['TG']}
 157 | | ...                                         | ${nodes['DUT1']}
 158 | | ...                                         | ${nodes['DUT2']}
 159 | | And Interfaces in 3-node BD-SHG testing are up
 160 | | When Bridge domain on DUT node is created | ${dut1_node} | ${bd_id1}
 161 | | And Interface is added to bridge domain | ${dut1_node} | ${dut1_to_tg_if1}
 162 | | ...                                     | ${bd_id1} | ${shg1}
 163 | | And Interface is added to bridge domain | ${dut1_node} | ${dut1_to_tg_if2}
 164 | | ...                                     | ${bd_id1} | ${shg1}
 165 | | And Interface is added to bridge domain | ${dut1_node} | ${dut1_to_dut2}
 166 | | ...                                     | ${bd_id1}
 167 | | And Bridge domain on DUT node is created | ${dut2_node} | ${bd_id2}
 168 | | And Interface is added to bridge domain | ${dut2_node} | ${dut2_to_tg_if1}
 169 | | ...                                     | ${bd_id2} | ${shg2}
 170 | | And Interface is added to bridge domain | ${dut2_node} | ${dut2_to_tg_if2}
 171 | | ...                                     | ${bd_id2} | ${shg2}
 172 | | And Interface is added to bridge domain | ${dut2_node} | ${dut2_to_dut1}
 173 | | ...                                     | ${bd_id2}
 174 | | Then Send and receive ICMPv4 bidirectionally | ${tg_node}
 175 | | ...                                          | ${tg_to_dut1_if1}
 176 | | ...                                          | ${tg_to_dut2_if1}
 177 | | And Send and receive ICMPv4 bidirectionally | ${tg_node}
 178 | | ...                                         | ${tg_to_dut1_if1}
 179 | | ...                                         | ${tg_to_dut2_if2}
 180 | | And Send and receive ICMPv4 bidirectionally | ${tg_node}
 181 | | ...                                         | ${tg_to_dut1_if2}
 182 | | ...                                         | ${tg_to_dut2_if1}
 183 | | And Send and receive ICMPv4 bidirectionally | ${tg_node}
 184 | | ...                                         | ${tg_to_dut1_if2}
 185 | | ...                                         | ${tg_to_dut2_if2}
 186 | | And Run Keyword And Expect Error | ICMP echo Rx timeout
 187 | | ...                              | Send and receive ICMPv4 bidirectionally
 188 | | | ...                            | ${tg_node} | ${tg_to_dut1_if1}
 189 | | | ...                            | ${tg_to_dut1_if2}
 190 | | And Run Keyword And Expect Error | ICMP echo Rx timeout
 191 | | ...                              | Send and receive ICMPv4 bidirectionally
 192 | | | ...                            | ${tg_node} | ${tg_to_dut2_if1}
 193 | | | ...                            | ${tg_to_dut2_if2}
 194
 195 | TC06: DUT with two L2BDs (MAC learn) switches ICMPv4 between TG and VM links
 196 | | [Documentation]
 197 | | ... | [Top] TG=DUT=VM. [Enc] Eth-IPv4-ICMPv4. [Cfg] On DUT1 configure \
 198 | | ... | two L2BDs with MAC learning, each with vhost-user i/f to local
 199 | | ... | VM and i/f to TG; configure VM to loop pkts back betwen its two
 200 | | ... | virtio i/fs. [Ver] Make TG verify ICMPv4 Echo Req pkts are
 201 | | ... | switched thru DUT1 and VM in both directions and are correct on
 202 | | ... | receive. [Ref]
 203 | | [Tags] | 3_NODE_DOUBLE_LINK_TOPO | VPP_VM_ENV
 204 | | Given Path for 2-node testing is set
 205 | | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['TG']}
 206 | | And Interfaces in 2-node path are up
 207 | | When VPP Vhost interfaces for L2BD forwarding are setup | ${dut_node}
 208 | | ...                                                     | ${sock1}
 209 | | ...                                                     | ${sock2}
 210 | | And Bridge domain on DUT node is created | ${dut_node} | ${bd_id1}
 211 | | And Interface is added to bridge domain | ${dut_node} | ${dut_to_tg_if1}
 212 | | ...                                     | ${bd_id1}
 213 | | And Interface is added to bridge domain | ${dut_node} | ${vhost_if1}
 214 | | ...                                     | ${bd_id1}
 215 | | And Bridge domain on DUT node is created | ${dut_node} | ${bd_id2}
 216 | | And Interface is added to bridge domain | ${dut_node} | ${dut_to_tg_if2}
 217 | | ...                                     | ${bd_id2}
 218 | | And Interface is added to bridge domain | ${dut_node} | ${vhost_if2}
 219 | | ...                                     | ${bd_id2}
 220 | | And VM for Vhost L2BD forwarding is setup | ${dut_node} | ${sock1}
 221 | | ...                                       | ${sock2}
 222 | | Then Send and receive ICMPv4 bidirectionally | ${tg_node} | ${tg_to_dut_if1}
 223 | | ...                                          | ${tg_to_dut_if2}
 224 | | [Teardown] | Run Keywords | Show Packet Trace on All DUTs | ${nodes}
 225 | | ...        | AND          | Show vpp trace dump on all DUTs
 226 | | ...        | AND          | Stop and Clear QEMU | ${dut_node} | ${vm_node}
 227
 228 | TC07: DUT with two L2BDs (MAC learn) switches ICMPv6 between TG and VM links
 229 | | [Documentation]
 230 | | ... | [Top] TG=DUT=VM. [Enc] Eth-IPv6-ICMPv6. [Cfg] On DUT1 configure \
 231 | | ... | two L2BDs with MAC learning, each with vhost-user i/f to local
 232 | | ... | VM and i/f to TG; configure VM to loop pkts back betwen its two
 233 | | ... | virtio i/fs. [Ver] Make TG verify ICMPv6 Echo Req pkts are
 234 | | ... | switched thru DUT1 and VM in both directions and are correct on
 235 | | ... | receive. [Ref]
 236 | | [Tags] | 3_NODE_DOUBLE_LINK_TOPO | VPP_VM_ENV
 237 | | Given Path for 2-node testing is set
 238 | | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['TG']}
 239 | | And Interfaces in 2-node path are up
 240 | | When VPP Vhost interfaces for L2BD forwarding are setup | ${dut_node}
 241 | | ...                                                     | ${sock1}
 242 | | ...                                                     | ${sock2}
 243 | | And Bridge domain on DUT node is created | ${dut_node} | ${bd_id1}
 244 | | And Interface is added to bridge domain | ${dut_node} | ${dut_to_tg_if1}
 245 | | ...                                     | ${bd_id1}
 246 | | And Interface is added to bridge domain | ${dut_node} | ${vhost_if1}
 247 | | ...                                     | ${bd_id1}
 248 | | And Bridge domain on DUT node is created | ${dut_node} | ${bd_id2}
 249 | | And Interface is added to bridge domain | ${dut_node} | ${dut_to_tg_if2}
 250 | | ...                                     | ${bd_id2}
 251 | | And Interface is added to bridge domain | ${dut_node} | ${vhost_if2}
 252 | | ...                                     | ${bd_id2}
 253 | | And VM for Vhost L2BD forwarding is setup | ${dut_node} | ${sock1}
 254 | | ...                                       | ${sock2}
 255 | | Then Send and receive ICMPv6 bidirectionally | ${tg_node} | ${tg_to_dut_if1}
 256 | | ...                                          | ${tg_to_dut_if2}
 257 | | [Teardown] | Run Keywords | Show Packet Trace on All DUTs | ${nodes}
 258 | | ...        | AND          | Show vpp trace dump on all DUTs
 259 | | ...        | AND          | Stop and Clear QEMU | ${dut_node} | ${vm_node}
 260
 261 | TC08: DUT with two L2BDs (static MACs) switches ICMPv4 between TG and VM links
 262 | | [Documentation]
 263 | | ... | [Top] TG=DUT=VM. [Enc] Eth-IPv4-ICMPv4. [Cfg] On DUT1 configure \
 264 | | ... | two L2BDs with static MACs, each with vhost-user i/f to local VM
 265 | | ... | and i/f to TG; configure VM to loop pkts back betwen its two
 266 | | ... | virtio i/fs. [Ver] Make TG verify ICMPv4 Echo Req pkts are
 267 | | ... | switched thru DUT1 and VM in both directions and are correct on
 268 | | ... | receive. [Ref]
 269 | | [Tags] | 3_NODE_DOUBLE_LINK_TOPO | VPP_VM_ENV
 270 | | Given Path for 2-node testing is set
 271 | | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['TG']}
 272 | | And Interfaces in 2-node path are up
 273 | | When VPP Vhost interfaces for L2BD forwarding are setup | ${dut_node}
 274 | | ...                                                     | ${sock1}
 275 | | ...                                                     | ${sock2}
 276 | | And Bridge domain on DUT node is created | ${dut_node} | ${bd_id1}
 277 | | ...                                      | learn=${FALSE}
 278 | | And Interface is added to bridge domain | ${dut_node} | ${dut_to_tg_if1}
 279 | | ...                                     | ${bd_id1}
 280 | | And Interface is added to bridge domain | ${dut_node} | ${vhost_if1}
 281 | | ...                                     | ${bd_id1}
 282 | | And Destination port is added to L2FIB on DUT node | ${tg_node}
 283 | | ...                                                | ${tg_to_dut_if1}
 284 | | ...                                                | ${dut_node}
 285 | | ...                                                | ${dut_to_tg_if1}
 286 | | ...                                                | ${bd_id1}
 287 | | And Destination port is added to L2FIB on DUT node | ${tg_node}
 288 | | ...                                                | ${tg_to_dut_if2}
 289 | | ...                                                | ${dut_node}
 290 | | ...                                                | ${vhost_if1}
 291 | | ...                                                | ${bd_id1}
 292 | | And Bridge domain on DUT node is created | ${dut_node} | ${bd_id2}
 293 | | ...                                      | learn=${FALSE}
 294 | | And Interface is added to bridge domain | ${dut_node} | ${dut_to_tg_if2}
 295 | | ...                                     | ${bd_id2}
 296 | | And Interface is added to bridge domain | ${dut_node} | ${vhost_if2}
 297 | | ...                                     | ${bd_id2}
 298 | | And Destination port is added to L2FIB on DUT node | ${tg_node}
 299 | | ...                                                | ${tg_to_dut_if2}
 300 | | ...                                                | ${dut_node}
 301 | | ...                                                | ${dut_to_tg_if2}
 302 | | ...                                                | ${bd_id2}
 303 | | And Destination port is added to L2FIB on DUT node | ${tg_node}
 304 | | ...                                                | ${tg_to_dut_if1}
 305 | | ...                                                | ${dut_node}
 306 | | ...                                                | ${vhost_if2}
 307 | | ...                                                | ${bd_id2}
 308 | | And VM for Vhost L2BD forwarding is setup | ${dut_node} | ${sock1}
 309 | | ...                                       | ${sock2}
 310 | | Then Send and receive ICMPv4 bidirectionally | ${tg_node} | ${tg_to_dut_if1}
 311 | | ...                                          | ${tg_to_dut_if2}
 312 | | [Teardown] | Run Keywords | Show Packet Trace on All DUTs | ${nodes}
 313 | | ...        | AND          | Show vpp trace dump on all DUTs
 314 | | ...        | AND          | Stop and Clear QEMU | ${dut_node} | ${vm_node}
 315
 316 | TC09: DUT with two L2BDs (static MACs) switches ICMPv6 between TG and VM links
 317 | | [Documentation]
 318 | | ... | [Top] TG=DUT=VM. [Enc] Eth-IPv6-ICMPv6. [Cfg] On DUT1 configure \
 319 | | ... | two L2BDs with static MACs, each with vhost-user i/f to local VM
 320 | | ... | and i/f to TG; configure VM to loop pkts back betwen its two
 321 | | ... | virtio i/fs. [Ver] Make TG verify ICMPv6 Echo Req pkts are
 322 | | ... | switched thru DUT1 and VM in both directions and are correct on
 323 | | ... | receive. [Ref]
 324 | | [Tags] | 3_NODE_DOUBLE_LINK_TOPO | VPP_VM_ENV
 325 | | Given Path for 2-node testing is set
 326 | | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['TG']}
 327 | | And Interfaces in 2-node path are up
 328 | | When VPP Vhost interfaces for L2BD forwarding are setup | ${dut_node}
 329 | | ...                                                     | ${sock1}
 330 | | ...                                                     | ${sock2}
 331 | | And Bridge domain on DUT node is created | ${dut_node} | ${bd_id1}
 332 | | ...                                      | learn=${FALSE}
 333 | | And Interface is added to bridge domain | ${dut_node} | ${dut_to_tg_if1}
 334 | | ...                                     | ${bd_id1}
 335 | | And Interface is added to bridge domain | ${dut_node} | ${vhost_if1}
 336 | | ...                                     | ${bd_id1}
 337 | | And Destination port is added to L2FIB on DUT node | ${tg_node}
 338 | | ...                                                | ${tg_to_dut_if1}
 339 | | ...                                                | ${dut_node}
 340 | | ...                                                | ${dut_to_tg_if1}
 341 | | ...                                                | ${bd_id1}
 342 | | And Destination port is added to L2FIB on DUT node | ${tg_node}
 343 | | ...                                                | ${tg_to_dut_if2}
 344 | | ...                                                | ${dut_node}
 345 | | ...                                                | ${vhost_if1}
 346 | | ...                                                | ${bd_id1}
 347 | | And Bridge domain on DUT node is created | ${dut_node} | ${bd_id2}
 348 | | ...                                      | learn=${FALSE}
 349 | | And Interface is added to bridge domain | ${dut_node} | ${dut_to_tg_if2}
 350 | | ...                                     | ${bd_id2}
 351 | | And Interface is added to bridge domain | ${dut_node} | ${vhost_if2}
 352 | | ...                                     | ${bd_id2}
 353 | | And Destination port is added to L2FIB on DUT node | ${tg_node}
 354 | | ...                                                | ${tg_to_dut_if2}
 355 | | ...                                                | ${dut_node}
 356 | | ...                                                | ${dut_to_tg_if2}
 357 | | ...                                                | ${bd_id2}
 358 | | And Destination port is added to L2FIB on DUT node | ${tg_node}
 359 | | ...                                                | ${tg_to_dut_if1}
 360 | | ...                                                | ${dut_node}
 361 | | ...                                                | ${vhost_if2}
 362 | | ...                                                | ${bd_id2}
 363 | | And VM for Vhost L2BD forwarding is setup | ${dut_node} | ${sock1}
 364 | | ...                                       | ${sock2}
 365 | | Then Send and receive ICMPv6 bidirectionally | ${tg_node} | ${tg_to_dut_if1}
 366 | | ...                                          | ${tg_to_dut_if2}
 367 | | [Teardown] | Run Keywords | Show Packet Trace on All DUTs | ${nodes}
 368 | | ...        | AND          | Show vpp trace dump on all DUTs
 369 | | ...        | AND          | Stop and Clear QEMU | ${dut_node} | ${vm_node}