Introduce reconfig suites, for dot1q+ip4+vxlan

Ticket: CSIT-1551

+ Config copied from other suites.
+ Layer keywords prepared for additional chains.
+ Renamed "create" argument to "vlan_per_chain".
+ TrafficGenerator result extraction improvements.
 + Also unified TG type and subtype checking.
+ Throughput estimated as PDR for zero PLR.
+ Actual Qemu start is skipped.
+ Parse xstats instead of stats in trex stop scipt.
 - Because stats are unconditionally cleared on each script connect.
+ Remember start values to get better ReceiveMeasurementResult at stop.
+ Expose loss count and time as appropriate test message.
+ Autogen support.
+ Multiple chain amounts and core densities.
 - Only 1 additional chain.
+ Proper TAGs. Documented.
 + Clarified min framesize tags are for TG-DUT.
  + Added a TODO concerning overhead values.
 + Added 118B tag.
+ Robot performance keywords improvements.
 + Added missing return value documentation.
 + Frame size as required test variable, not an explicit argument.
 + MLRsearch keyword to store result (not into test message).
  - TODO: De-duplicate: main keyword to measure, minor to set test message.
   - But implementation uses the fact default arguments are different.
 + Keywords for starting and stopping background traffic.
  - No checks whether start-stop pair is complete.
+ Multiple minor indentation and logging improvements.
- Missing / TODOs:
 - Support also vlan_per_chain=True?
 - Support dot1q without vxlan?
 - Support also deletion?
 - How to package config steps so -reconf can be generated from -ndrpdr?

Change-Id: If0270697f9ffa837c34ef802917220a53f156703
Signed-off-by: Vratko Polak <vrpolak@cisco.com>

24 files changed, 1944 insertions, 24 deletions

diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm1t-testpmd-reconf.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm1t-testpmd-reconf.robot
new file mode 100644
index 0000000000..d08e086e9e
--- /dev/null
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm1t-testpmd-reconf.robot
@@ -0,0 +1,160 @@
+# Copyright (c) 2019 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 | 2_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | RECONF
+| ... | NIC_Intel-X710 | L2BDMACLRN | ENCAP | VXLAN | L2OVRLAY | IP4UNRLAY
+| ... | VHOST | VM | VHOST_1024 | VXLAN | DOT1Q | NF_DENSITY | NF_TESTPMD
+| ... | CHAIN | 10R1C | 1_ADDED_CHAIN | 10VM1T
+| ...
+| Suite Setup | Setup suite single link | performance
+| Suite Teardown | Tear down suite | performance
+| Test Setup | Setup test
+| Test Teardown | Tear down test | performance | vhost
+| ...
+| Test Template | Local Template
+| ...
+| Documentation | *RFC2544: Packet loss L2BD test cases with Dot1Q and
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
+| ...
+| ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
+| ... | with single links between nodes.
+| ... | *[Enc] Packet Encapsulations:* Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 for L2\
+| ... | switching of IPv4. Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 is applied on link\
+| ... | between DUT1 and TG.
+| ... | *[Cfg] DUT configuration:* DUT1 is configured with L2 bridge-\
+| ... | domain and MAC learning enabled. Qemu VNFs are connected\
+| ... | to VPP via vhost-user interfaces. Guest is running testpmd l2xc\
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1 is\
+| ... | tested with ${nic_name}.
+| ... | *[Ver] TG verification:* TG finds and throughput NDR (Non Drop\
+| ... | Rate) with zero packet loss tolerance, then measured loss at this load\
+| ... | while additional chain is configured.\
+| ... | Test packets are generated by TG on links to DUTs. TG traffic profile\
+| ... | contains two L3 flow-groups (flow-group per direction, 256 flows per\
+| ... | flow-group) with all packets containing Ethernet header with .1Q, IPv4\
+| ... | header, UPD header, VXLAN header and static payload. MAC addresses are\
+| ... | matching MAC addresses of the TG node interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544, RFC7348.
+
+*** Variables ***
+| @{plugins_to_enable}= | dpdk_plugin.so
+| ${osi_layer}= | L3
+| ${nic_name}= | Intel-X710
+| ${overhead}= | ${54}
+| ${nf_dtcr}= | ${2}
+| ${nf_dtc}= | ${0.5}
+| ${nf_chains}= | ${10}
+| ${nf_added_chains}= | ${1}
+| ${nf_nodes}= | ${1}
+# Traffic profile:
+| ${traffic_profile}=
+| ... | trex-sl-dot1qip4vxlan-ip4src${nf_chains}udpsrcrnd
+
+*** Keywords ***
+| Local Template
+| | [Documentation]
+| | ... | [Cfg] DUT runs Dot1Q-IP4-Vxlan L2BD switching config.\
+| | ... | Each DUT uses ${phy_cores} physical core(s) for worker threads.
+| | ... | [Ver] Measure packet loss during reconfig at NDR load.\
+| | ...
+| | ... | *Arguments:*
+| | ... | - frame_size - Framesize in Bytes in integer or string (IMIX_v4_1).
+| | ... | Type: integer, string
+| | ... | - phy_cores - Number of worker threads to be used. Type: integer
+| | ... | - rxq - Number of Rx queues to be used. Type: integer
+| | ...
+| | [Arguments] | ${frame_size} | ${phy_cores} | ${rxq}=${None}
+| | ...
+| | Set Test Variable | \${frame_size}
+| | ...
+| | ${nf_total_chains}= | Evaluate | ${nf_chains} + ${nf_added_chains}
+| | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
+| | And Add PCI devices to all DUTs
+| | And Set Max Rate And Jumbo And Handle Multi Seg
+| | And Apply startup configuration on all VPP DUTs
+| | When Initialize layer interface
+| | ... | count=${nf_total_chains}
+| | And Initialize layer dot1q
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_chains}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes}
+| | And Configure chains of NFs connected via vhost-user
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes} | jumbo=${jumbo}
+| | ... | use_tuned_cfs=${False} | auto_scale=${False} | vnf=testpmd_io
+| | ${bidirectional_throughput}= | Find Throughput Using MLRsearch
+| | ${unidirectional_throughput}= | Evaluate | ${bidirectional_throughput} / 2.0
+| | Start Traffic on Background | ${unidirectional_throughput}pps
+| | And Initialize layer dot1q
+| | ... | count=${nf_total_chains} | vlan_per_chain=${False}
+| | ... | start=${nf_chains+1}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_total_chains} | start=${nf_chains+1}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_total_chains} | nf_nodes=${nf_nodes}
+| | ... | start=${nf_chains+1}
+| | ${result}= | Stop Running Traffic
+| | Display Reconfig Test Message | ${result}
+
+*** Test Cases ***
+| tc01-118B-1c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm1t-testpmd-reconf
+| | [Tags] | 118B | 1C
+| | frame_size=${118} | phy_cores=${1}
+
+| tc02-118B-2c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm1t-testpmd-reconf
+| | [Tags] | 118B | 2C
+| | frame_size=${118} | phy_cores=${2}
+
+| tc03-118B-4c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm1t-testpmd-reconf
+| | [Tags] | 118B | 4C
+| | frame_size=${118} | phy_cores=${4}
+
+| tc04-1518B-1c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm1t-testpmd-reconf
+| | [Tags] | 1518B | 1C
+| | frame_size=${1518} | phy_cores=${1}
+
+| tc05-1518B-2c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm1t-testpmd-reconf
+| | [Tags] | 1518B | 2C
+| | frame_size=${1518} | phy_cores=${2}
+
+| tc06-1518B-4c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm1t-testpmd-reconf
+| | [Tags] | 1518B | 4C
+| | frame_size=${1518} | phy_cores=${4}
+
+| tc07-9000B-1c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm1t-testpmd-reconf
+| | [Tags] | 9000B | 1C
+| | frame_size=${9000} | phy_cores=${1}
+
+| tc08-9000B-2c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm1t-testpmd-reconf
+| | [Tags] | 9000B | 2C
+| | frame_size=${9000} | phy_cores=${2}
+
+| tc09-9000B-4c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm1t-testpmd-reconf
+| | [Tags] | 9000B | 4C
+| | frame_size=${9000} | phy_cores=${4}
+
+| tc10-IMIX-1c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm1t-testpmd-reconf
+| | [Tags] | IMIX | 1C
+| | frame_size=IMIX_v4_1 | phy_cores=${1}
+
+| tc11-IMIX-2c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm1t-testpmd-reconf
+| | [Tags] | IMIX | 2C
+| | frame_size=IMIX_v4_1 | phy_cores=${2}
+
+| tc12-IMIX-4c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm1t-testpmd-reconf
+| | [Tags] | IMIX | 4C
+| | frame_size=IMIX_v4_1 | phy_cores=${4}
diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm2t-testpmd-reconf.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm2t-testpmd-reconf.robot
new file mode 100644
index 0000000000..932f135fa0
--- /dev/null
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm2t-testpmd-reconf.robot
@@ -0,0 +1,160 @@
+# Copyright (c) 2019 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 | 2_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | RECONF
+| ... | NIC_Intel-X710 | L2BDMACLRN | ENCAP | VXLAN | L2OVRLAY | IP4UNRLAY
+| ... | VHOST | VM | VHOST_1024 | VXLAN | DOT1Q | NF_DENSITY | NF_TESTPMD
+| ... | CHAIN | 10R1C | 1_ADDED_CHAIN | 10VM2T
+| ...
+| Suite Setup | Setup suite single link | performance
+| Suite Teardown | Tear down suite | performance
+| Test Setup | Setup test
+| Test Teardown | Tear down test | performance | vhost
+| ...
+| Test Template | Local Template
+| ...
+| Documentation | *RFC2544: Packet loss L2BD test cases with Dot1Q and
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
+| ...
+| ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
+| ... | with single links between nodes.
+| ... | *[Enc] Packet Encapsulations:* Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 for L2\
+| ... | switching of IPv4. Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 is applied on link\
+| ... | between DUT1 and TG.
+| ... | *[Cfg] DUT configuration:* DUT1 is configured with L2 bridge-\
+| ... | domain and MAC learning enabled. Qemu VNFs are connected\
+| ... | to VPP via vhost-user interfaces. Guest is running testpmd l2xc\
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1 is\
+| ... | tested with ${nic_name}.
+| ... | *[Ver] TG verification:* TG finds and throughput NDR (Non Drop\
+| ... | Rate) with zero packet loss tolerance, then measured loss at this load\
+| ... | while additional chain is configured.\
+| ... | Test packets are generated by TG on links to DUTs. TG traffic profile\
+| ... | contains two L3 flow-groups (flow-group per direction, 256 flows per\
+| ... | flow-group) with all packets containing Ethernet header with .1Q, IPv4\
+| ... | header, UPD header, VXLAN header and static payload. MAC addresses are\
+| ... | matching MAC addresses of the TG node interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544, RFC7348.
+
+*** Variables ***
+| @{plugins_to_enable}= | dpdk_plugin.so
+| ${osi_layer}= | L3
+| ${nic_name}= | Intel-X710
+| ${overhead}= | ${54}
+| ${nf_dtcr}= | ${1}
+| ${nf_dtc}= | ${1}
+| ${nf_chains}= | ${10}
+| ${nf_added_chains}= | ${1}
+| ${nf_nodes}= | ${1}
+# Traffic profile:
+| ${traffic_profile}=
+| ... | trex-sl-dot1qip4vxlan-ip4src${nf_chains}udpsrcrnd
+
+*** Keywords ***
+| Local Template
+| | [Documentation]
+| | ... | [Cfg] DUT runs Dot1Q-IP4-Vxlan L2BD switching config.\
+| | ... | Each DUT uses ${phy_cores} physical core(s) for worker threads.
+| | ... | [Ver] Measure packet loss during reconfig at NDR load.\
+| | ...
+| | ... | *Arguments:*
+| | ... | - frame_size - Framesize in Bytes in integer or string (IMIX_v4_1).
+| | ... | Type: integer, string
+| | ... | - phy_cores - Number of worker threads to be used. Type: integer
+| | ... | - rxq - Number of Rx queues to be used. Type: integer
+| | ...
+| | [Arguments] | ${frame_size} | ${phy_cores} | ${rxq}=${None}
+| | ...
+| | Set Test Variable | \${frame_size}
+| | ...
+| | ${nf_total_chains}= | Evaluate | ${nf_chains} + ${nf_added_chains}
+| | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
+| | And Add PCI devices to all DUTs
+| | And Set Max Rate And Jumbo And Handle Multi Seg
+| | And Apply startup configuration on all VPP DUTs
+| | When Initialize layer interface
+| | ... | count=${nf_total_chains}
+| | And Initialize layer dot1q
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_chains}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes}
+| | And Configure chains of NFs connected via vhost-user
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes} | jumbo=${jumbo}
+| | ... | use_tuned_cfs=${False} | auto_scale=${False} | vnf=testpmd_io
+| | ${bidirectional_throughput}= | Find Throughput Using MLRsearch
+| | ${unidirectional_throughput}= | Evaluate | ${bidirectional_throughput} / 2.0
+| | Start Traffic on Background | ${unidirectional_throughput}pps
+| | And Initialize layer dot1q
+| | ... | count=${nf_total_chains} | vlan_per_chain=${False}
+| | ... | start=${nf_chains+1}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_total_chains} | start=${nf_chains+1}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_total_chains} | nf_nodes=${nf_nodes}
+| | ... | start=${nf_chains+1}
+| | ${result}= | Stop Running Traffic
+| | Display Reconfig Test Message | ${result}
+
+*** Test Cases ***
+| tc01-118B-1c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm2t-testpmd-reconf
+| | [Tags] | 118B | 1C
+| | frame_size=${118} | phy_cores=${1}
+
+| tc02-118B-2c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm2t-testpmd-reconf
+| | [Tags] | 118B | 2C
+| | frame_size=${118} | phy_cores=${2}
+
+| tc03-118B-4c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm2t-testpmd-reconf
+| | [Tags] | 118B | 4C
+| | frame_size=${118} | phy_cores=${4}
+
+| tc04-1518B-1c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm2t-testpmd-reconf
+| | [Tags] | 1518B | 1C
+| | frame_size=${1518} | phy_cores=${1}
+
+| tc05-1518B-2c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm2t-testpmd-reconf
+| | [Tags] | 1518B | 2C
+| | frame_size=${1518} | phy_cores=${2}
+
+| tc06-1518B-4c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm2t-testpmd-reconf
+| | [Tags] | 1518B | 4C
+| | frame_size=${1518} | phy_cores=${4}
+
+| tc07-9000B-1c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm2t-testpmd-reconf
+| | [Tags] | 9000B | 1C
+| | frame_size=${9000} | phy_cores=${1}
+
+| tc08-9000B-2c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm2t-testpmd-reconf
+| | [Tags] | 9000B | 2C
+| | frame_size=${9000} | phy_cores=${2}
+
+| tc09-9000B-4c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm2t-testpmd-reconf
+| | [Tags] | 9000B | 4C
+| | frame_size=${9000} | phy_cores=${4}
+
+| tc10-IMIX-1c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm2t-testpmd-reconf
+| | [Tags] | IMIX | 1C
+| | frame_size=IMIX_v4_1 | phy_cores=${1}
+
+| tc11-IMIX-2c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm2t-testpmd-reconf
+| | [Tags] | IMIX | 2C
+| | frame_size=IMIX_v4_1 | phy_cores=${2}
+
+| tc12-IMIX-4c-dot1qip4vxlan-l2bd-10ch-1ach-20vh-10vm2t-testpmd-reconf
+| | [Tags] | IMIX | 4C
+| | frame_size=IMIX_v4_1 | phy_cores=${4}
diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-10ch-20vh-10vm1t-testpmd-ndrpdr.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-10ch-20vh-10vm1t-testpmd-ndrpdr.robot
index beea4025a4..6646264738 100644
--- a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-10ch-20vh-10vm1t-testpmd-ndrpdr.robot
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-10ch-20vh-10vm1t-testpmd-ndrpdr.robot
@@ -27,7 +27,7 @@
 | Test Template | Local Template
 | ...
 | Documentation | *RFC2544: Packet throughput L2BD test cases with Dot1Q and
-| ... | VXLANoIPv4 and 20 vhosts 10 chains 10 VMs*
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
 | ...
 | ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
 | ... | with single links between nodes.
@@ -88,7 +88,7 @@
 | | When Initialize layer interface
 | | ... | count=${nf_chains}
 | | And Initialize layer dot1q
-| | ... | count=${nf_chains} | create=${False}
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
 | | And Initialize layer ip4vxlan
 | | ... | count=${nf_chains}
 | | And Initialize L2 bridge domains for multiple chains with Vhost-User
diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-10ch-20vh-10vm2t-testpmd-ndrpdr.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-10ch-20vh-10vm2t-testpmd-ndrpdr.robot
index 290a7f31c3..b65ee0e661 100644
--- a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-10ch-20vh-10vm2t-testpmd-ndrpdr.robot
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-10ch-20vh-10vm2t-testpmd-ndrpdr.robot
@@ -27,7 +27,7 @@
 | Test Template | Local Template
 | ...
 | Documentation | *RFC2544: Packet throughput L2BD test cases with Dot1Q and
-| ... | VXLANoIPv4 and 20 vhosts 10 chains 10 VMs*
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
 | ...
 | ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
 | ... | with single links between nodes.
@@ -88,7 +88,7 @@
 | | When Initialize layer interface
 | | ... | count=${nf_chains}
 | | And Initialize layer dot1q
-| | ... | count=${nf_chains} | create=${False}
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
 | | And Initialize layer ip4vxlan
 | | ... | count=${nf_chains}
 | | And Initialize L2 bridge domains for multiple chains with Vhost-User
diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm1t-testpmd-reconf.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm1t-testpmd-reconf.robot
new file mode 100644
index 0000000000..e7404b9894
--- /dev/null
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm1t-testpmd-reconf.robot
@@ -0,0 +1,160 @@
+# Copyright (c) 2019 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 | 2_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | RECONF
+| ... | NIC_Intel-X710 | L2BDMACLRN | ENCAP | VXLAN | L2OVRLAY | IP4UNRLAY
+| ... | VHOST | VM | VHOST_1024 | VXLAN | DOT1Q | NF_DENSITY | NF_TESTPMD
+| ... | CHAIN | 1R1C | 1_ADDED_CHAIN | 1VM1T
+| ...
+| Suite Setup | Setup suite single link | performance
+| Suite Teardown | Tear down suite | performance
+| Test Setup | Setup test
+| Test Teardown | Tear down test | performance | vhost
+| ...
+| Test Template | Local Template
+| ...
+| Documentation | *RFC2544: Packet loss L2BD test cases with Dot1Q and
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
+| ...
+| ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
+| ... | with single links between nodes.
+| ... | *[Enc] Packet Encapsulations:* Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 for L2\
+| ... | switching of IPv4. Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 is applied on link\
+| ... | between DUT1 and TG.
+| ... | *[Cfg] DUT configuration:* DUT1 is configured with L2 bridge-\
+| ... | domain and MAC learning enabled. Qemu VNFs are connected\
+| ... | to VPP via vhost-user interfaces. Guest is running testpmd l2xc\
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1 is\
+| ... | tested with ${nic_name}.
+| ... | *[Ver] TG verification:* TG finds and throughput NDR (Non Drop\
+| ... | Rate) with zero packet loss tolerance, then measured loss at this load\
+| ... | while additional chain is configured.\
+| ... | Test packets are generated by TG on links to DUTs. TG traffic profile\
+| ... | contains two L3 flow-groups (flow-group per direction, 256 flows per\
+| ... | flow-group) with all packets containing Ethernet header with .1Q, IPv4\
+| ... | header, UPD header, VXLAN header and static payload. MAC addresses are\
+| ... | matching MAC addresses of the TG node interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544, RFC7348.
+
+*** Variables ***
+| @{plugins_to_enable}= | dpdk_plugin.so
+| ${osi_layer}= | L3
+| ${nic_name}= | Intel-X710
+| ${overhead}= | ${54}
+| ${nf_dtcr}= | ${2}
+| ${nf_dtc}= | ${0.5}
+| ${nf_chains}= | ${1}
+| ${nf_added_chains}= | ${1}
+| ${nf_nodes}= | ${1}
+# Traffic profile:
+| ${traffic_profile}=
+| ... | trex-sl-dot1qip4vxlan-ip4src${nf_chains}udpsrcrnd
+
+*** Keywords ***
+| Local Template
+| | [Documentation]
+| | ... | [Cfg] DUT runs Dot1Q-IP4-Vxlan L2BD switching config.\
+| | ... | Each DUT uses ${phy_cores} physical core(s) for worker threads.
+| | ... | [Ver] Measure packet loss during reconfig at NDR load.\
+| | ...
+| | ... | *Arguments:*
+| | ... | - frame_size - Framesize in Bytes in integer or string (IMIX_v4_1).
+| | ... | Type: integer, string
+| | ... | - phy_cores - Number of worker threads to be used. Type: integer
+| | ... | - rxq - Number of Rx queues to be used. Type: integer
+| | ...
+| | [Arguments] | ${frame_size} | ${phy_cores} | ${rxq}=${None}
+| | ...
+| | Set Test Variable | \${frame_size}
+| | ...
+| | ${nf_total_chains}= | Evaluate | ${nf_chains} + ${nf_added_chains}
+| | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
+| | And Add PCI devices to all DUTs
+| | And Set Max Rate And Jumbo And Handle Multi Seg
+| | And Apply startup configuration on all VPP DUTs
+| | When Initialize layer interface
+| | ... | count=${nf_total_chains}
+| | And Initialize layer dot1q
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_chains}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes}
+| | And Configure chains of NFs connected via vhost-user
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes} | jumbo=${jumbo}
+| | ... | use_tuned_cfs=${False} | auto_scale=${False} | vnf=testpmd_io
+| | ${bidirectional_throughput}= | Find Throughput Using MLRsearch
+| | ${unidirectional_throughput}= | Evaluate | ${bidirectional_throughput} / 2.0
+| | Start Traffic on Background | ${unidirectional_throughput}pps
+| | And Initialize layer dot1q
+| | ... | count=${nf_total_chains} | vlan_per_chain=${False}
+| | ... | start=${nf_chains+1}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_total_chains} | start=${nf_chains+1}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_total_chains} | nf_nodes=${nf_nodes}
+| | ... | start=${nf_chains+1}
+| | ${result}= | Stop Running Traffic
+| | Display Reconfig Test Message | ${result}
+
+*** Test Cases ***
+| tc01-118B-1c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm1t-testpmd-reconf
+| | [Tags] | 118B | 1C
+| | frame_size=${118} | phy_cores=${1}
+
+| tc02-118B-2c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm1t-testpmd-reconf
+| | [Tags] | 118B | 2C
+| | frame_size=${118} | phy_cores=${2}
+
+| tc03-118B-4c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm1t-testpmd-reconf
+| | [Tags] | 118B | 4C
+| | frame_size=${118} | phy_cores=${4}
+
+| tc04-1518B-1c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm1t-testpmd-reconf
+| | [Tags] | 1518B | 1C
+| | frame_size=${1518} | phy_cores=${1}
+
+| tc05-1518B-2c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm1t-testpmd-reconf
+| | [Tags] | 1518B | 2C
+| | frame_size=${1518} | phy_cores=${2}
+
+| tc06-1518B-4c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm1t-testpmd-reconf
+| | [Tags] | 1518B | 4C
+| | frame_size=${1518} | phy_cores=${4}
+
+| tc07-9000B-1c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm1t-testpmd-reconf
+| | [Tags] | 9000B | 1C
+| | frame_size=${9000} | phy_cores=${1}
+
+| tc08-9000B-2c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm1t-testpmd-reconf
+| | [Tags] | 9000B | 2C
+| | frame_size=${9000} | phy_cores=${2}
+
+| tc09-9000B-4c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm1t-testpmd-reconf
+| | [Tags] | 9000B | 4C
+| | frame_size=${9000} | phy_cores=${4}
+
+| tc10-IMIX-1c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm1t-testpmd-reconf
+| | [Tags] | IMIX | 1C
+| | frame_size=IMIX_v4_1 | phy_cores=${1}
+
+| tc11-IMIX-2c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm1t-testpmd-reconf
+| | [Tags] | IMIX | 2C
+| | frame_size=IMIX_v4_1 | phy_cores=${2}
+
+| tc12-IMIX-4c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm1t-testpmd-reconf
+| | [Tags] | IMIX | 4C
+| | frame_size=IMIX_v4_1 | phy_cores=${4}
diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm2t-testpmd-reconf.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm2t-testpmd-reconf.robot
new file mode 100644
index 0000000000..ff1c6184fc
--- /dev/null
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm2t-testpmd-reconf.robot
@@ -0,0 +1,160 @@
+# Copyright (c) 2019 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 | 2_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | RECONF
+| ... | NIC_Intel-X710 | L2BDMACLRN | ENCAP | VXLAN | L2OVRLAY | IP4UNRLAY
+| ... | VHOST | VM | VHOST_1024 | VXLAN | DOT1Q | NF_DENSITY | NF_TESTPMD
+| ... | CHAIN | 1R1C | 1_ADDED_CHAIN | 1VM2T
+| ...
+| Suite Setup | Setup suite single link | performance
+| Suite Teardown | Tear down suite | performance
+| Test Setup | Setup test
+| Test Teardown | Tear down test | performance | vhost
+| ...
+| Test Template | Local Template
+| ...
+| Documentation | *RFC2544: Packet loss L2BD test cases with Dot1Q and
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
+| ...
+| ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
+| ... | with single links between nodes.
+| ... | *[Enc] Packet Encapsulations:* Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 for L2\
+| ... | switching of IPv4. Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 is applied on link\
+| ... | between DUT1 and TG.
+| ... | *[Cfg] DUT configuration:* DUT1 is configured with L2 bridge-\
+| ... | domain and MAC learning enabled. Qemu VNFs are connected\
+| ... | to VPP via vhost-user interfaces. Guest is running testpmd l2xc\
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1 is\
+| ... | tested with ${nic_name}.
+| ... | *[Ver] TG verification:* TG finds and throughput NDR (Non Drop\
+| ... | Rate) with zero packet loss tolerance, then measured loss at this load\
+| ... | while additional chain is configured.\
+| ... | Test packets are generated by TG on links to DUTs. TG traffic profile\
+| ... | contains two L3 flow-groups (flow-group per direction, 256 flows per\
+| ... | flow-group) with all packets containing Ethernet header with .1Q, IPv4\
+| ... | header, UPD header, VXLAN header and static payload. MAC addresses are\
+| ... | matching MAC addresses of the TG node interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544, RFC7348.
+
+*** Variables ***
+| @{plugins_to_enable}= | dpdk_plugin.so
+| ${osi_layer}= | L3
+| ${nic_name}= | Intel-X710
+| ${overhead}= | ${54}
+| ${nf_dtcr}= | ${1}
+| ${nf_dtc}= | ${1}
+| ${nf_chains}= | ${1}
+| ${nf_added_chains}= | ${1}
+| ${nf_nodes}= | ${1}
+# Traffic profile:
+| ${traffic_profile}=
+| ... | trex-sl-dot1qip4vxlan-ip4src${nf_chains}udpsrcrnd
+
+*** Keywords ***
+| Local Template
+| | [Documentation]
+| | ... | [Cfg] DUT runs Dot1Q-IP4-Vxlan L2BD switching config.\
+| | ... | Each DUT uses ${phy_cores} physical core(s) for worker threads.
+| | ... | [Ver] Measure packet loss during reconfig at NDR load.\
+| | ...
+| | ... | *Arguments:*
+| | ... | - frame_size - Framesize in Bytes in integer or string (IMIX_v4_1).
+| | ... | Type: integer, string
+| | ... | - phy_cores - Number of worker threads to be used. Type: integer
+| | ... | - rxq - Number of Rx queues to be used. Type: integer
+| | ...
+| | [Arguments] | ${frame_size} | ${phy_cores} | ${rxq}=${None}
+| | ...
+| | Set Test Variable | \${frame_size}
+| | ...
+| | ${nf_total_chains}= | Evaluate | ${nf_chains} + ${nf_added_chains}
+| | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
+| | And Add PCI devices to all DUTs
+| | And Set Max Rate And Jumbo And Handle Multi Seg
+| | And Apply startup configuration on all VPP DUTs
+| | When Initialize layer interface
+| | ... | count=${nf_total_chains}
+| | And Initialize layer dot1q
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_chains}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes}
+| | And Configure chains of NFs connected via vhost-user
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes} | jumbo=${jumbo}
+| | ... | use_tuned_cfs=${False} | auto_scale=${False} | vnf=testpmd_io
+| | ${bidirectional_throughput}= | Find Throughput Using MLRsearch
+| | ${unidirectional_throughput}= | Evaluate | ${bidirectional_throughput} / 2.0
+| | Start Traffic on Background | ${unidirectional_throughput}pps
+| | And Initialize layer dot1q
+| | ... | count=${nf_total_chains} | vlan_per_chain=${False}
+| | ... | start=${nf_chains+1}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_total_chains} | start=${nf_chains+1}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_total_chains} | nf_nodes=${nf_nodes}
+| | ... | start=${nf_chains+1}
+| | ${result}= | Stop Running Traffic
+| | Display Reconfig Test Message | ${result}
+
+*** Test Cases ***
+| tc01-118B-1c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm2t-testpmd-reconf
+| | [Tags] | 118B | 1C
+| | frame_size=${118} | phy_cores=${1}
+
+| tc02-118B-2c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm2t-testpmd-reconf
+| | [Tags] | 118B | 2C
+| | frame_size=${118} | phy_cores=${2}
+
+| tc03-118B-4c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm2t-testpmd-reconf
+| | [Tags] | 118B | 4C
+| | frame_size=${118} | phy_cores=${4}
+
+| tc04-1518B-1c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm2t-testpmd-reconf
+| | [Tags] | 1518B | 1C
+| | frame_size=${1518} | phy_cores=${1}
+
+| tc05-1518B-2c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm2t-testpmd-reconf
+| | [Tags] | 1518B | 2C
+| | frame_size=${1518} | phy_cores=${2}
+
+| tc06-1518B-4c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm2t-testpmd-reconf
+| | [Tags] | 1518B | 4C
+| | frame_size=${1518} | phy_cores=${4}
+
+| tc07-9000B-1c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm2t-testpmd-reconf
+| | [Tags] | 9000B | 1C
+| | frame_size=${9000} | phy_cores=${1}
+
+| tc08-9000B-2c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm2t-testpmd-reconf
+| | [Tags] | 9000B | 2C
+| | frame_size=${9000} | phy_cores=${2}
+
+| tc09-9000B-4c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm2t-testpmd-reconf
+| | [Tags] | 9000B | 4C
+| | frame_size=${9000} | phy_cores=${4}
+
+| tc10-IMIX-1c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm2t-testpmd-reconf
+| | [Tags] | IMIX | 1C
+| | frame_size=IMIX_v4_1 | phy_cores=${1}
+
+| tc11-IMIX-2c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm2t-testpmd-reconf
+| | [Tags] | IMIX | 2C
+| | frame_size=IMIX_v4_1 | phy_cores=${2}
+
+| tc12-IMIX-4c-dot1qip4vxlan-l2bd-1ch-1ach-2vh-1vm2t-testpmd-reconf
+| | [Tags] | IMIX | 4C
+| | frame_size=IMIX_v4_1 | phy_cores=${4}
diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-1ch-2vh-1vm1t-testpmd-ndrpdr.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-1ch-2vh-1vm1t-testpmd-ndrpdr.robot
index 408ee665a2..bf53dab305 100644
--- a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-1ch-2vh-1vm1t-testpmd-ndrpdr.robot
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-1ch-2vh-1vm1t-testpmd-ndrpdr.robot
@@ -27,7 +27,7 @@
 | Test Template | Local Template
 | ...
 | Documentation | *RFC2544: Packet throughput L2BD test cases with Dot1Q and
-| ... | VXLANoIPv4 and 2 vhosts 1 chain 1 VM*
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
 | ...
 | ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
 | ... | with single links between nodes.
@@ -88,7 +88,7 @@
 | | When Initialize layer interface
 | | ... | count=${nf_chains}
 | | And Initialize layer dot1q
-| | ... | count=${nf_chains} | create=${False}
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
 | | And Initialize layer ip4vxlan
 | | ... | count=${nf_chains}
 | | And Initialize L2 bridge domains for multiple chains with Vhost-User
diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-1ch-2vh-1vm2t-testpmd-ndrpdr.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-1ch-2vh-1vm2t-testpmd-ndrpdr.robot
index b6873823b2..23c880a937 100644
--- a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-1ch-2vh-1vm2t-testpmd-ndrpdr.robot
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-1ch-2vh-1vm2t-testpmd-ndrpdr.robot
@@ -27,7 +27,7 @@
 | Test Template | Local Template
 | ...
 | Documentation | *RFC2544: Packet throughput L2BD test cases with Dot1Q and
-| ... | VXLANoIPv4 and 2 vhosts 1 chain 1 VM*
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
 | ...
 | ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
 | ... | with single links between nodes.
@@ -88,7 +88,7 @@
 | | When Initialize layer interface
 | | ... | count=${nf_chains}
 | | And Initialize layer dot1q
-| | ... | count=${nf_chains} | create=${False}
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
 | | And Initialize layer ip4vxlan
 | | ... | count=${nf_chains}
 | | And Initialize L2 bridge domains for multiple chains with Vhost-User
diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm1t-testpmd-reconf.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm1t-testpmd-reconf.robot
new file mode 100644
index 0000000000..117afb7ebe
--- /dev/null
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm1t-testpmd-reconf.robot
@@ -0,0 +1,160 @@
+# Copyright (c) 2019 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 | 2_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | RECONF
+| ... | NIC_Intel-X710 | L2BDMACLRN | ENCAP | VXLAN | L2OVRLAY | IP4UNRLAY
+| ... | VHOST | VM | VHOST_1024 | VXLAN | DOT1Q | NF_DENSITY | NF_TESTPMD
+| ... | CHAIN | 2R1C | 1_ADDED_CHAIN | 2VM1T
+| ...
+| Suite Setup | Setup suite single link | performance
+| Suite Teardown | Tear down suite | performance
+| Test Setup | Setup test
+| Test Teardown | Tear down test | performance | vhost
+| ...
+| Test Template | Local Template
+| ...
+| Documentation | *RFC2544: Packet loss L2BD test cases with Dot1Q and
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
+| ...
+| ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
+| ... | with single links between nodes.
+| ... | *[Enc] Packet Encapsulations:* Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 for L2\
+| ... | switching of IPv4. Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 is applied on link\
+| ... | between DUT1 and TG.
+| ... | *[Cfg] DUT configuration:* DUT1 is configured with L2 bridge-\
+| ... | domain and MAC learning enabled. Qemu VNFs are connected\
+| ... | to VPP via vhost-user interfaces. Guest is running testpmd l2xc\
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1 is\
+| ... | tested with ${nic_name}.
+| ... | *[Ver] TG verification:* TG finds and throughput NDR (Non Drop\
+| ... | Rate) with zero packet loss tolerance, then measured loss at this load\
+| ... | while additional chain is configured.\
+| ... | Test packets are generated by TG on links to DUTs. TG traffic profile\
+| ... | contains two L3 flow-groups (flow-group per direction, 256 flows per\
+| ... | flow-group) with all packets containing Ethernet header with .1Q, IPv4\
+| ... | header, UPD header, VXLAN header and static payload. MAC addresses are\
+| ... | matching MAC addresses of the TG node interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544, RFC7348.
+
+*** Variables ***
+| @{plugins_to_enable}= | dpdk_plugin.so
+| ${osi_layer}= | L3
+| ${nic_name}= | Intel-X710
+| ${overhead}= | ${54}
+| ${nf_dtcr}= | ${2}
+| ${nf_dtc}= | ${0.5}
+| ${nf_chains}= | ${2}
+| ${nf_added_chains}= | ${1}
+| ${nf_nodes}= | ${1}
+# Traffic profile:
+| ${traffic_profile}=
+| ... | trex-sl-dot1qip4vxlan-ip4src${nf_chains}udpsrcrnd
+
+*** Keywords ***
+| Local Template
+| | [Documentation]
+| | ... | [Cfg] DUT runs Dot1Q-IP4-Vxlan L2BD switching config.\
+| | ... | Each DUT uses ${phy_cores} physical core(s) for worker threads.
+| | ... | [Ver] Measure packet loss during reconfig at NDR load.\
+| | ...
+| | ... | *Arguments:*
+| | ... | - frame_size - Framesize in Bytes in integer or string (IMIX_v4_1).
+| | ... | Type: integer, string
+| | ... | - phy_cores - Number of worker threads to be used. Type: integer
+| | ... | - rxq - Number of Rx queues to be used. Type: integer
+| | ...
+| | [Arguments] | ${frame_size} | ${phy_cores} | ${rxq}=${None}
+| | ...
+| | Set Test Variable | \${frame_size}
+| | ...
+| | ${nf_total_chains}= | Evaluate | ${nf_chains} + ${nf_added_chains}
+| | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
+| | And Add PCI devices to all DUTs
+| | And Set Max Rate And Jumbo And Handle Multi Seg
+| | And Apply startup configuration on all VPP DUTs
+| | When Initialize layer interface
+| | ... | count=${nf_total_chains}
+| | And Initialize layer dot1q
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_chains}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes}
+| | And Configure chains of NFs connected via vhost-user
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes} | jumbo=${jumbo}
+| | ... | use_tuned_cfs=${False} | auto_scale=${False} | vnf=testpmd_io
+| | ${bidirectional_throughput}= | Find Throughput Using MLRsearch
+| | ${unidirectional_throughput}= | Evaluate | ${bidirectional_throughput} / 2.0
+| | Start Traffic on Background | ${unidirectional_throughput}pps
+| | And Initialize layer dot1q
+| | ... | count=${nf_total_chains} | vlan_per_chain=${False}
+| | ... | start=${nf_chains+1}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_total_chains} | start=${nf_chains+1}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_total_chains} | nf_nodes=${nf_nodes}
+| | ... | start=${nf_chains+1}
+| | ${result}= | Stop Running Traffic
+| | Display Reconfig Test Message | ${result}
+
+*** Test Cases ***
+| tc01-118B-1c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm1t-testpmd-reconf
+| | [Tags] | 118B | 1C
+| | frame_size=${118} | phy_cores=${1}
+
+| tc02-118B-2c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm1t-testpmd-reconf
+| | [Tags] | 118B | 2C
+| | frame_size=${118} | phy_cores=${2}
+
+| tc03-118B-4c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm1t-testpmd-reconf
+| | [Tags] | 118B | 4C
+| | frame_size=${118} | phy_cores=${4}
+
+| tc04-1518B-1c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm1t-testpmd-reconf
+| | [Tags] | 1518B | 1C
+| | frame_size=${1518} | phy_cores=${1}
+
+| tc05-1518B-2c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm1t-testpmd-reconf
+| | [Tags] | 1518B | 2C
+| | frame_size=${1518} | phy_cores=${2}
+
+| tc06-1518B-4c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm1t-testpmd-reconf
+| | [Tags] | 1518B | 4C
+| | frame_size=${1518} | phy_cores=${4}
+
+| tc07-9000B-1c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm1t-testpmd-reconf
+| | [Tags] | 9000B | 1C
+| | frame_size=${9000} | phy_cores=${1}
+
+| tc08-9000B-2c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm1t-testpmd-reconf
+| | [Tags] | 9000B | 2C
+| | frame_size=${9000} | phy_cores=${2}
+
+| tc09-9000B-4c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm1t-testpmd-reconf
+| | [Tags] | 9000B | 4C
+| | frame_size=${9000} | phy_cores=${4}
+
+| tc10-IMIX-1c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm1t-testpmd-reconf
+| | [Tags] | IMIX | 1C
+| | frame_size=IMIX_v4_1 | phy_cores=${1}
+
+| tc11-IMIX-2c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm1t-testpmd-reconf
+| | [Tags] | IMIX | 2C
+| | frame_size=IMIX_v4_1 | phy_cores=${2}
+
+| tc12-IMIX-4c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm1t-testpmd-reconf
+| | [Tags] | IMIX | 4C
+| | frame_size=IMIX_v4_1 | phy_cores=${4}
diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm2t-testpmd-reconf.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm2t-testpmd-reconf.robot
new file mode 100644
index 0000000000..6e4a3aa461
--- /dev/null
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm2t-testpmd-reconf.robot
@@ -0,0 +1,160 @@
+# Copyright (c) 2019 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 | 2_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | RECONF
+| ... | NIC_Intel-X710 | L2BDMACLRN | ENCAP | VXLAN | L2OVRLAY | IP4UNRLAY
+| ... | VHOST | VM | VHOST_1024 | VXLAN | DOT1Q | NF_DENSITY | NF_TESTPMD
+| ... | CHAIN | 2R1C | 1_ADDED_CHAIN | 2VM2T
+| ...
+| Suite Setup | Setup suite single link | performance
+| Suite Teardown | Tear down suite | performance
+| Test Setup | Setup test
+| Test Teardown | Tear down test | performance | vhost
+| ...
+| Test Template | Local Template
+| ...
+| Documentation | *RFC2544: Packet loss L2BD test cases with Dot1Q and
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
+| ...
+| ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
+| ... | with single links between nodes.
+| ... | *[Enc] Packet Encapsulations:* Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 for L2\
+| ... | switching of IPv4. Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 is applied on link\
+| ... | between DUT1 and TG.
+| ... | *[Cfg] DUT configuration:* DUT1 is configured with L2 bridge-\
+| ... | domain and MAC learning enabled. Qemu VNFs are connected\
+| ... | to VPP via vhost-user interfaces. Guest is running testpmd l2xc\
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1 is\
+| ... | tested with ${nic_name}.
+| ... | *[Ver] TG verification:* TG finds and throughput NDR (Non Drop\
+| ... | Rate) with zero packet loss tolerance, then measured loss at this load\
+| ... | while additional chain is configured.\
+| ... | Test packets are generated by TG on links to DUTs. TG traffic profile\
+| ... | contains two L3 flow-groups (flow-group per direction, 256 flows per\
+| ... | flow-group) with all packets containing Ethernet header with .1Q, IPv4\
+| ... | header, UPD header, VXLAN header and static payload. MAC addresses are\
+| ... | matching MAC addresses of the TG node interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544, RFC7348.
+
+*** Variables ***
+| @{plugins_to_enable}= | dpdk_plugin.so
+| ${osi_layer}= | L3
+| ${nic_name}= | Intel-X710
+| ${overhead}= | ${54}
+| ${nf_dtcr}= | ${1}
+| ${nf_dtc}= | ${1}
+| ${nf_chains}= | ${2}
+| ${nf_added_chains}= | ${1}
+| ${nf_nodes}= | ${1}
+# Traffic profile:
+| ${traffic_profile}=
+| ... | trex-sl-dot1qip4vxlan-ip4src${nf_chains}udpsrcrnd
+
+*** Keywords ***
+| Local Template
+| | [Documentation]
+| | ... | [Cfg] DUT runs Dot1Q-IP4-Vxlan L2BD switching config.\
+| | ... | Each DUT uses ${phy_cores} physical core(s) for worker threads.
+| | ... | [Ver] Measure packet loss during reconfig at NDR load.\
+| | ...
+| | ... | *Arguments:*
+| | ... | - frame_size - Framesize in Bytes in integer or string (IMIX_v4_1).
+| | ... | Type: integer, string
+| | ... | - phy_cores - Number of worker threads to be used. Type: integer
+| | ... | - rxq - Number of Rx queues to be used. Type: integer
+| | ...
+| | [Arguments] | ${frame_size} | ${phy_cores} | ${rxq}=${None}
+| | ...
+| | Set Test Variable | \${frame_size}
+| | ...
+| | ${nf_total_chains}= | Evaluate | ${nf_chains} + ${nf_added_chains}
+| | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
+| | And Add PCI devices to all DUTs
+| | And Set Max Rate And Jumbo And Handle Multi Seg
+| | And Apply startup configuration on all VPP DUTs
+| | When Initialize layer interface
+| | ... | count=${nf_total_chains}
+| | And Initialize layer dot1q
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_chains}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes}
+| | And Configure chains of NFs connected via vhost-user
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes} | jumbo=${jumbo}
+| | ... | use_tuned_cfs=${False} | auto_scale=${False} | vnf=testpmd_io
+| | ${bidirectional_throughput}= | Find Throughput Using MLRsearch
+| | ${unidirectional_throughput}= | Evaluate | ${bidirectional_throughput} / 2.0
+| | Start Traffic on Background | ${unidirectional_throughput}pps
+| | And Initialize layer dot1q
+| | ... | count=${nf_total_chains} | vlan_per_chain=${False}
+| | ... | start=${nf_chains+1}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_total_chains} | start=${nf_chains+1}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_total_chains} | nf_nodes=${nf_nodes}
+| | ... | start=${nf_chains+1}
+| | ${result}= | Stop Running Traffic
+| | Display Reconfig Test Message | ${result}
+
+*** Test Cases ***
+| tc01-118B-1c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm2t-testpmd-reconf
+| | [Tags] | 118B | 1C
+| | frame_size=${118} | phy_cores=${1}
+
+| tc02-118B-2c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm2t-testpmd-reconf
+| | [Tags] | 118B | 2C
+| | frame_size=${118} | phy_cores=${2}
+
+| tc03-118B-4c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm2t-testpmd-reconf
+| | [Tags] | 118B | 4C
+| | frame_size=${118} | phy_cores=${4}
+
+| tc04-1518B-1c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm2t-testpmd-reconf
+| | [Tags] | 1518B | 1C
+| | frame_size=${1518} | phy_cores=${1}
+
+| tc05-1518B-2c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm2t-testpmd-reconf
+| | [Tags] | 1518B | 2C
+| | frame_size=${1518} | phy_cores=${2}
+
+| tc06-1518B-4c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm2t-testpmd-reconf
+| | [Tags] | 1518B | 4C
+| | frame_size=${1518} | phy_cores=${4}
+
+| tc07-9000B-1c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm2t-testpmd-reconf
+| | [Tags] | 9000B | 1C
+| | frame_size=${9000} | phy_cores=${1}
+
+| tc08-9000B-2c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm2t-testpmd-reconf
+| | [Tags] | 9000B | 2C
+| | frame_size=${9000} | phy_cores=${2}
+
+| tc09-9000B-4c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm2t-testpmd-reconf
+| | [Tags] | 9000B | 4C
+| | frame_size=${9000} | phy_cores=${4}
+
+| tc10-IMIX-1c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm2t-testpmd-reconf
+| | [Tags] | IMIX | 1C
+| | frame_size=IMIX_v4_1 | phy_cores=${1}
+
+| tc11-IMIX-2c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm2t-testpmd-reconf
+| | [Tags] | IMIX | 2C
+| | frame_size=IMIX_v4_1 | phy_cores=${2}
+
+| tc12-IMIX-4c-dot1qip4vxlan-l2bd-2ch-1ach-4vh-2vm2t-testpmd-reconf
+| | [Tags] | IMIX | 4C
+| | frame_size=IMIX_v4_1 | phy_cores=${4}
diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-2ch-4vh-2vm1t-testpmd-ndrpdr.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-2ch-4vh-2vm1t-testpmd-ndrpdr.robot
index 54ad6d8ef4..924ef0b1ab 100644
--- a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-2ch-4vh-2vm1t-testpmd-ndrpdr.robot
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-2ch-4vh-2vm1t-testpmd-ndrpdr.robot
@@ -27,7 +27,7 @@
 | Test Template | Local Template
 | ...
 | Documentation | *RFC2544: Packet throughput L2BD test cases with Dot1Q and
-| ... | VXLANoIPv4 and 4 vhosts 2 chains 2 VMs*
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
 | ...
 | ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
 | ... | with single links between nodes.
@@ -88,7 +88,7 @@
 | | When Initialize layer interface
 | | ... | count=${nf_chains}
 | | And Initialize layer dot1q
-| | ... | count=${nf_chains} | create=${False}
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
 | | And Initialize layer ip4vxlan
 | | ... | count=${nf_chains}
 | | And Initialize L2 bridge domains for multiple chains with Vhost-User
diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-2ch-4vh-2vm2t-testpmd-ndrpdr.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-2ch-4vh-2vm2t-testpmd-ndrpdr.robot
index 0b4e69f3b9..5d5ea5744c 100644
--- a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-2ch-4vh-2vm2t-testpmd-ndrpdr.robot
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-2ch-4vh-2vm2t-testpmd-ndrpdr.robot
@@ -27,7 +27,7 @@
 | Test Template | Local Template
 | ...
 | Documentation | *RFC2544: Packet throughput L2BD test cases with Dot1Q and
-| ... | VXLANoIPv4 and 4 vhost 2 chains 2 VMs*
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
 | ...
 | ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
 | ... | with single links between nodes.
@@ -88,7 +88,7 @@
 | | When Initialize layer interface
 | | ... | count=${nf_chains}
 | | And Initialize layer dot1q
-| | ... | count=${nf_chains} | create=${False}
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
 | | And Initialize layer ip4vxlan
 | | ... | count=${nf_chains}
 | | And Initialize L2 bridge domains for multiple chains with Vhost-User
diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm1t-testpmd-reconf.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm1t-testpmd-reconf.robot
new file mode 100644
index 0000000000..5651bf1fe3
--- /dev/null
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm1t-testpmd-reconf.robot
@@ -0,0 +1,160 @@
+# Copyright (c) 2019 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 | 2_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | RECONF
+| ... | NIC_Intel-X710 | L2BDMACLRN | ENCAP | VXLAN | L2OVRLAY | IP4UNRLAY
+| ... | VHOST | VM | VHOST_1024 | VXLAN | DOT1Q | NF_DENSITY | NF_TESTPMD
+| ... | CHAIN | 4R1C | 1_ADDED_CHAIN | 4VM1T
+| ...
+| Suite Setup | Setup suite single link | performance
+| Suite Teardown | Tear down suite | performance
+| Test Setup | Setup test
+| Test Teardown | Tear down test | performance | vhost
+| ...
+| Test Template | Local Template
+| ...
+| Documentation | *RFC2544: Packet throughput L2BD test cases with Dot1Q and
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
+| ...
+| ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
+| ... | with single links between nodes.
+| ... | *[Enc] Packet Encapsulations:* Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 for L2\
+| ... | switching of IPv4. Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 is applied on link\
+| ... | between DUT1 and TG.
+| ... | *[Cfg] DUT configuration:* DUT1 is configured with L2 bridge-\
+| ... | domain and MAC learning enabled. Qemu VNFs are connected\
+| ... | to VPP via vhost-user interfaces. Guest is running testpmd l2xc\
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1 is\
+| ... | tested with ${nic_name}.
+| ... | *[Ver] TG verification:* TG finds and throughput NDR (Non Drop\
+| ... | Rate) with zero packet loss tolerance, then measured loss at this load\
+| ... | while additional chain is configured.\
+| ... | Test packets are generated by TG on links to DUTs. TG traffic profile\
+| ... | contains two L3 flow-groups (flow-group per direction, 256 flows per\
+| ... | flow-group) with all packets containing Ethernet header with .1Q, IPv4\
+| ... | header, UPD header, VXLAN header and static payload. MAC addresses are\
+| ... | matching MAC addresses of the TG node interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544, RFC7348.
+
+*** Variables ***
+| @{plugins_to_enable}= | dpdk_plugin.so
+| ${osi_layer}= | L3
+| ${nic_name}= | Intel-X710
+| ${overhead}= | ${54}
+| ${nf_dtcr}= | ${2}
+| ${nf_dtc}= | ${0.5}
+| ${nf_chains}= | ${4}
+| ${nf_added_chains}= | ${1}
+| ${nf_nodes}= | ${1}
+# Traffic profile:
+| ${traffic_profile}=
+| ... | trex-sl-dot1qip4vxlan-ip4src${nf_chains}udpsrcrnd
+
+*** Keywords ***
+| Local Template
+| | [Documentation]
+| | ... | [Cfg] DUT runs Dot1Q-IP4-Vxlan L2BD switching config.\
+| | ... | Each DUT uses ${phy_cores} physical core(s) for worker threads.
+| | ... | [Ver] Measure packet loss during reconfig at NDR load.\
+| | ...
+| | ... | *Arguments:*
+| | ... | - frame_size - Framesize in Bytes in integer or string (IMIX_v4_1).
+| | ... | Type: integer, string
+| | ... | - phy_cores - Number of worker threads to be used. Type: integer
+| | ... | - rxq - Number of Rx queues to be used. Type: integer
+| | ...
+| | [Arguments] | ${frame_size} | ${phy_cores} | ${rxq}=${None}
+| | ...
+| | Set Test Variable | \${frame_size}
+| | ...
+| | ${nf_total_chains}= | Evaluate | ${nf_chains} + ${nf_added_chains}
+| | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
+| | And Add PCI devices to all DUTs
+| | And Set Max Rate And Jumbo And Handle Multi Seg
+| | And Apply startup configuration on all VPP DUTs
+| | When Initialize layer interface
+| | ... | count=${nf_total_chains}
+| | And Initialize layer dot1q
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_chains}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes}
+| | And Configure chains of NFs connected via vhost-user
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes} | jumbo=${jumbo}
+| | ... | use_tuned_cfs=${False} | auto_scale=${False} | vnf=testpmd_io
+| | ${bidirectional_throughput}= | Find Throughput Using MLRsearch
+| | ${unidirectional_throughput}= | Evaluate | ${bidirectional_throughput} / 2.0
+| | Start Traffic on Background | ${unidirectional_throughput}pps
+| | And Initialize layer dot1q
+| | ... | count=${nf_total_chains} | vlan_per_chain=${False}
+| | ... | start=${nf_chains+1}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_total_chains} | start=${nf_chains+1}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_total_chains} | nf_nodes=${nf_nodes}
+| | ... | start=${nf_chains+1}
+| | ${result}= | Stop Running Traffic
+| | Display Reconfig Test Message | ${result}
+
+*** Test Cases ***
+| tc01-118B-1c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm1t-testpmd-reconf
+| | [Tags] | 118B | 1C
+| | frame_size=${118} | phy_cores=${1}
+
+| tc02-118B-2c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm1t-testpmd-reconf
+| | [Tags] | 118B | 2C
+| | frame_size=${118} | phy_cores=${2}
+
+| tc03-118B-4c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm1t-testpmd-reconf
+| | [Tags] | 118B | 4C
+| | frame_size=${118} | phy_cores=${4}
+
+| tc04-1518B-1c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm1t-testpmd-reconf
+| | [Tags] | 1518B | 1C
+| | frame_size=${1518} | phy_cores=${1}
+
+| tc05-1518B-2c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm1t-testpmd-reconf
+| | [Tags] | 1518B | 2C
+| | frame_size=${1518} | phy_cores=${2}
+
+| tc06-1518B-4c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm1t-testpmd-reconf
+| | [Tags] | 1518B | 4C
+| | frame_size=${1518} | phy_cores=${4}
+
+| tc07-9000B-1c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm1t-testpmd-reconf
+| | [Tags] | 9000B | 1C
+| | frame_size=${9000} | phy_cores=${1}
+
+| tc08-9000B-2c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm1t-testpmd-reconf
+| | [Tags] | 9000B | 2C
+| | frame_size=${9000} | phy_cores=${2}
+
+| tc09-9000B-4c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm1t-testpmd-reconf
+| | [Tags] | 9000B | 4C
+| | frame_size=${9000} | phy_cores=${4}
+
+| tc10-IMIX-1c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm1t-testpmd-reconf
+| | [Tags] | IMIX | 1C
+| | frame_size=IMIX_v4_1 | phy_cores=${1}
+
+| tc11-IMIX-2c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm1t-testpmd-reconf
+| | [Tags] | IMIX | 2C
+| | frame_size=IMIX_v4_1 | phy_cores=${2}
+
+| tc12-IMIX-4c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm1t-testpmd-reconf
+| | [Tags] | IMIX | 4C
+| | frame_size=IMIX_v4_1 | phy_cores=${4}
diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm2t-testpmd-reconf.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm2t-testpmd-reconf.robot
new file mode 100644
index 0000000000..153f3ab4b6
--- /dev/null
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm2t-testpmd-reconf.robot
@@ -0,0 +1,160 @@
+# Copyright (c) 2019 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 | 2_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | RECONF
+| ... | NIC_Intel-X710 | L2BDMACLRN | ENCAP | VXLAN | L2OVRLAY | IP4UNRLAY
+| ... | VHOST | VM | VHOST_1024 | VXLAN | DOT1Q | NF_DENSITY | NF_TESTPMD
+| ... | CHAIN | 4R1C | 1_ADDED_CHAIN | 4VM2T
+| ...
+| Suite Setup | Setup suite single link | performance
+| Suite Teardown | Tear down suite | performance
+| Test Setup | Setup test
+| Test Teardown | Tear down test | performance | vhost
+| ...
+| Test Template | Local Template
+| ...
+| Documentation | *RFC2544: Packet throughput L2BD test cases with Dot1Q and
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
+| ...
+| ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
+| ... | with single links between nodes.
+| ... | *[Enc] Packet Encapsulations:* Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 for L2\
+| ... | switching of IPv4. Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 is applied on link\
+| ... | between DUT1 and TG.
+| ... | *[Cfg] DUT configuration:* DUT1 is configured with L2 bridge-\
+| ... | domain and MAC learning enabled. Qemu VNFs are connected\
+| ... | to VPP via vhost-user interfaces. Guest is running testpmd l2xc\
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1 is\
+| ... | tested with ${nic_name}.
+| ... | *[Ver] TG verification:* TG finds and throughput NDR (Non Drop\
+| ... | Rate) with zero packet loss tolerance, then measured loss at this load\
+| ... | while additional chain is configured.\
+| ... | Test packets are generated by TG on links to DUTs. TG traffic profile\
+| ... | contains two L3 flow-groups (flow-group per direction, 256 flows per\
+| ... | flow-group) with all packets containing Ethernet header with .1Q, IPv4\
+| ... | header, UPD header, VXLAN header and static payload. MAC addresses are\
+| ... | matching MAC addresses of the TG node interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544, RFC7348.
+
+*** Variables ***
+| @{plugins_to_enable}= | dpdk_plugin.so
+| ${osi_layer}= | L3
+| ${nic_name}= | Intel-X710
+| ${overhead}= | ${54}
+| ${nf_dtcr}= | ${1}
+| ${nf_dtc}= | ${1}
+| ${nf_chains}= | ${4}
+| ${nf_added_chains}= | ${1}
+| ${nf_nodes}= | ${1}
+# Traffic profile:
+| ${traffic_profile}=
+| ... | trex-sl-dot1qip4vxlan-ip4src${nf_chains}udpsrcrnd
+
+*** Keywords ***
+| Local Template
+| | [Documentation]
+| | ... | [Cfg] DUT runs Dot1Q-IP4-Vxlan L2BD switching config.\
+| | ... | Each DUT uses ${phy_cores} physical core(s) for worker threads.
+| | ... | [Ver] Measure packet loss during reconfig at NDR load.\
+| | ...
+| | ... | *Arguments:*
+| | ... | - frame_size - Framesize in Bytes in integer or string (IMIX_v4_1).
+| | ... | Type: integer, string
+| | ... | - phy_cores - Number of worker threads to be used. Type: integer
+| | ... | - rxq - Number of Rx queues to be used. Type: integer
+| | ...
+| | [Arguments] | ${frame_size} | ${phy_cores} | ${rxq}=${None}
+| | ...
+| | Set Test Variable | \${frame_size}
+| | ...
+| | ${nf_total_chains}= | Evaluate | ${nf_chains} + ${nf_added_chains}
+| | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
+| | And Add PCI devices to all DUTs
+| | And Set Max Rate And Jumbo And Handle Multi Seg
+| | And Apply startup configuration on all VPP DUTs
+| | When Initialize layer interface
+| | ... | count=${nf_total_chains}
+| | And Initialize layer dot1q
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_chains}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes}
+| | And Configure chains of NFs connected via vhost-user
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes} | jumbo=${jumbo}
+| | ... | use_tuned_cfs=${False} | auto_scale=${False} | vnf=testpmd_io
+| | ${bidirectional_throughput}= | Find Throughput Using MLRsearch
+| | ${unidirectional_throughput}= | Evaluate | ${bidirectional_throughput} / 2.0
+| | Start Traffic on Background | ${unidirectional_throughput}pps
+| | And Initialize layer dot1q
+| | ... | count=${nf_total_chains} | vlan_per_chain=${False}
+| | ... | start=${nf_chains+1}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_total_chains} | start=${nf_chains+1}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_total_chains} | nf_nodes=${nf_nodes}
+| | ... | start=${nf_chains+1}
+| | ${result}= | Stop Running Traffic
+| | Display Reconfig Test Message | ${result}
+
+*** Test Cases ***
+| tc01-118B-1c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm2t-testpmd-reconf
+| | [Tags] | 118B | 1C
+| | frame_size=${118} | phy_cores=${1}
+
+| tc02-118B-2c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm2t-testpmd-reconf
+| | [Tags] | 118B | 2C
+| | frame_size=${118} | phy_cores=${2}
+
+| tc03-118B-4c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm2t-testpmd-reconf
+| | [Tags] | 118B | 4C
+| | frame_size=${118} | phy_cores=${4}
+
+| tc04-1518B-1c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm2t-testpmd-reconf
+| | [Tags] | 1518B | 1C
+| | frame_size=${1518} | phy_cores=${1}
+
+| tc05-1518B-2c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm2t-testpmd-reconf
+| | [Tags] | 1518B | 2C
+| | frame_size=${1518} | phy_cores=${2}
+
+| tc06-1518B-4c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm2t-testpmd-reconf
+| | [Tags] | 1518B | 4C
+| | frame_size=${1518} | phy_cores=${4}
+
+| tc07-9000B-1c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm2t-testpmd-reconf
+| | [Tags] | 9000B | 1C
+| | frame_size=${9000} | phy_cores=${1}
+
+| tc08-9000B-2c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm2t-testpmd-reconf
+| | [Tags] | 9000B | 2C
+| | frame_size=${9000} | phy_cores=${2}
+
+| tc09-9000B-4c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm2t-testpmd-reconf
+| | [Tags] | 9000B | 4C
+| | frame_size=${9000} | phy_cores=${4}
+
+| tc10-IMIX-1c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm2t-testpmd-reconf
+| | [Tags] | IMIX | 1C
+| | frame_size=IMIX_v4_1 | phy_cores=${1}
+
+| tc11-IMIX-2c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm2t-testpmd-reconf
+| | [Tags] | IMIX | 2C
+| | frame_size=IMIX_v4_1 | phy_cores=${2}
+
+| tc12-IMIX-4c-dot1qip4vxlan-l2bd-4ch-1ach-8vh-4vm2t-testpmd-reconf
+| | [Tags] | IMIX | 4C
+| | frame_size=IMIX_v4_1 | phy_cores=${4}
diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-4ch-8vh-4vm1t-testpmd-ndrpdr.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-4ch-8vh-4vm1t-testpmd-ndrpdr.robot
index df9f217046..e6f04156a1 100644
--- a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-4ch-8vh-4vm1t-testpmd-ndrpdr.robot
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-4ch-8vh-4vm1t-testpmd-ndrpdr.robot
@@ -27,7 +27,7 @@
 | Test Template | Local Template
 | ...
 | Documentation | *RFC2544: Packet throughput L2BD test cases with Dot1Q and
-| ... | VXLANoIPv4 and 8 vhosts 4 chains 4 VMs*
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
 | ...
 | ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
 | ... | with single links between nodes.
@@ -88,7 +88,7 @@
 | | When Initialize layer interface
 | | ... | count=${nf_chains}
 | | And Initialize layer dot1q
-| | ... | count=${nf_chains} | create=${False}
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
 | | And Initialize layer ip4vxlan
 | | ... | count=${nf_chains}
 | | And Initialize L2 bridge domains for multiple chains with Vhost-User
diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-4ch-8vh-4vm2t-testpmd-ndrpdr.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-4ch-8vh-4vm2t-testpmd-ndrpdr.robot
index 469de8fde0..2ae04825da 100644
--- a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-4ch-8vh-4vm2t-testpmd-ndrpdr.robot
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-4ch-8vh-4vm2t-testpmd-ndrpdr.robot
@@ -27,7 +27,7 @@
 | Test Template | Local Template
 | ...
 | Documentation | *RFC2544: Packet throughput L2BD test cases with Dot1Q and
-| ... | VXLANoIPv4 and 8 vhosts 4 chains 4 VMs*
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
 | ...
 | ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
 | ... | with single links between nodes.
@@ -88,7 +88,7 @@
 | | When Initialize layer interface
 | | ... | count=${nf_chains}
 | | And Initialize layer dot1q
-| | ... | count=${nf_chains} | create=${False}
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
 | | And Initialize layer ip4vxlan
 | | ... | count=${nf_chains}
 | | And Initialize L2 bridge domains for multiple chains with Vhost-User
diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-6ch-12vh-6vm1t-testpmd-ndrpdr.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-6ch-12vh-6vm1t-testpmd-ndrpdr.robot
index 318e0bbe55..1fd804a039 100644
--- a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-6ch-12vh-6vm1t-testpmd-ndrpdr.robot
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-6ch-12vh-6vm1t-testpmd-ndrpdr.robot
@@ -27,7 +27,7 @@
 | Test Template | Local Template
 | ...
 | Documentation | *RFC2544: Packet throughput L2BD test cases with Dot1Q and
-| ... | VXLANoIPv4 and 12 vhosts 6 chains 6 VMs*
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
 | ...
 | ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
 | ... | with single links between nodes.
@@ -88,7 +88,7 @@
 | | When Initialize layer interface
 | | ... | count=${nf_chains}
 | | And Initialize layer dot1q
-| | ... | count=${nf_chains} | create=${False}
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
 | | And Initialize layer ip4vxlan
 | | ... | count=${nf_chains}
 | | And Initialize L2 bridge domains for multiple chains with Vhost-User
diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-6ch-12vh-6vm2t-testpmd-ndrpdr.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-6ch-12vh-6vm2t-testpmd-ndrpdr.robot
index e7b9800662..8e02d5d2e8 100644
--- a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-6ch-12vh-6vm2t-testpmd-ndrpdr.robot
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-6ch-12vh-6vm2t-testpmd-ndrpdr.robot
@@ -27,7 +27,7 @@
 | Test Template | Local Template
 | ...
 | Documentation | *RFC2544: Packet throughput L2BD test cases with Dot1Q and
-| ... | VXLANoIPv4 and 12 vhosts 6 chains 6 VMs*
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
 | ...
 | ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
 | ... | with single links between nodes.
@@ -88,7 +88,7 @@
 | | When Initialize layer interface
 | | ... | count=${nf_chains}
 | | And Initialize layer dot1q
-| | ... | count=${nf_chains} | create=${False}
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
 | | And Initialize layer ip4vxlan
 | | ... | count=${nf_chains}
 | | And Initialize L2 bridge domains for multiple chains with Vhost-User
diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm1t-testpmd-reconf.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm1t-testpmd-reconf.robot
new file mode 100644
index 0000000000..4d2d601c08
--- /dev/null
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm1t-testpmd-reconf.robot
@@ -0,0 +1,160 @@
+# Copyright (c) 2019 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 | 2_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | RECONF
+| ... | NIC_Intel-X710 | L2BDMACLRN | ENCAP | VXLAN | L2OVRLAY | IP4UNRLAY
+| ... | VHOST | VM | VHOST_1024 | VXLAN | DOT1Q | NF_DENSITY | NF_TESTPMD
+| ... | CHAIN | 6R1C | 1_ADDED_CHAIN | 6VM1T
+| ...
+| Suite Setup | Setup suite single link | performance
+| Suite Teardown | Tear down suite | performance
+| Test Setup | Setup test
+| Test Teardown | Tear down test | performance | vhost
+| ...
+| Test Template | Local Template
+| ...
+| Documentation | *RFC2544: Packet loss L2BD test cases with Dot1Q and
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
+| ...
+| ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
+| ... | with single links between nodes.
+| ... | *[Enc] Packet Encapsulations:* Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 for L2\
+| ... | switching of IPv4. Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 is applied on link\
+| ... | between DUT1 and TG.
+| ... | *[Cfg] DUT configuration:* DUT1 is configured with L2 bridge-\
+| ... | domain and MAC learning enabled. Qemu VNFs are connected\
+| ... | to VPP via vhost-user interfaces. Guest is running testpmd l2xc\
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1 is\
+| ... | tested with ${nic_name}.
+| ... | *[Ver] TG verification:* TG finds and throughput NDR (Non Drop\
+| ... | Rate) with zero packet loss tolerance, then measured loss at this load\
+| ... | while additional chain is configured.\
+| ... | Test packets are generated by TG on links to DUTs. TG traffic profile\
+| ... | contains two L3 flow-groups (flow-group per direction, 256 flows per\
+| ... | flow-group) with all packets containing Ethernet header with .1Q, IPv4\
+| ... | header, UPD header, VXLAN header and static payload. MAC addresses are\
+| ... | matching MAC addresses of the TG node interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544, RFC7348.
+
+*** Variables ***
+| @{plugins_to_enable}= | dpdk_plugin.so
+| ${osi_layer}= | L3
+| ${nic_name}= | Intel-X710
+| ${overhead}= | ${54}
+| ${nf_dtcr}= | ${2}
+| ${nf_dtc}= | ${0.5}
+| ${nf_chains}= | ${6}
+| ${nf_added_chains}= | ${1}
+| ${nf_nodes}= | ${1}
+# Traffic profile:
+| ${traffic_profile}=
+| ... | trex-sl-dot1qip4vxlan-ip4src${nf_chains}udpsrcrnd
+
+*** Keywords ***
+| Local Template
+| | [Documentation]
+| | ... | [Cfg] DUT runs Dot1Q-IP4-Vxlan L2BD switching config.\
+| | ... | Each DUT uses ${phy_cores} physical core(s) for worker threads.
+| | ... | [Ver] Measure packet loss during reconfig at NDR load.\
+| | ...
+| | ... | *Arguments:*
+| | ... | - frame_size - Framesize in Bytes in integer or string (IMIX_v4_1).
+| | ... | Type: integer, string
+| | ... | - phy_cores - Number of worker threads to be used. Type: integer
+| | ... | - rxq - Number of Rx queues to be used. Type: integer
+| | ...
+| | [Arguments] | ${frame_size} | ${phy_cores} | ${rxq}=${None}
+| | ...
+| | Set Test Variable | \${frame_size}
+| | ...
+| | ${nf_total_chains}= | Evaluate | ${nf_chains} + ${nf_added_chains}
+| | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
+| | And Add PCI devices to all DUTs
+| | And Set Max Rate And Jumbo And Handle Multi Seg
+| | And Apply startup configuration on all VPP DUTs
+| | When Initialize layer interface
+| | ... | count=${nf_total_chains}
+| | And Initialize layer dot1q
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_chains}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes}
+| | And Configure chains of NFs connected via vhost-user
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes} | jumbo=${jumbo}
+| | ... | use_tuned_cfs=${False} | auto_scale=${False} | vnf=testpmd_io
+| | ${bidirectional_throughput}= | Find Throughput Using MLRsearch
+| | ${unidirectional_throughput}= | Evaluate | ${bidirectional_throughput} / 2.0
+| | Start Traffic on Background | ${unidirectional_throughput}pps
+| | And Initialize layer dot1q
+| | ... | count=${nf_total_chains} | vlan_per_chain=${False}
+| | ... | start=${nf_chains+1}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_total_chains} | start=${nf_chains+1}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_total_chains} | nf_nodes=${nf_nodes}
+| | ... | start=${nf_chains+1}
+| | ${result}= | Stop Running Traffic
+| | Display Reconfig Test Message | ${result}
+
+*** Test Cases ***
+| tc01-118B-1c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm1t-testpmd-reconf
+| | [Tags] | 118B | 1C
+| | frame_size=${118} | phy_cores=${1}
+
+| tc02-118B-2c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm1t-testpmd-reconf
+| | [Tags] | 118B | 2C
+| | frame_size=${118} | phy_cores=${2}
+
+| tc03-118B-4c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm1t-testpmd-reconf
+| | [Tags] | 118B | 4C
+| | frame_size=${118} | phy_cores=${4}
+
+| tc04-1518B-1c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm1t-testpmd-reconf
+| | [Tags] | 1518B | 1C
+| | frame_size=${1518} | phy_cores=${1}
+
+| tc05-1518B-2c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm1t-testpmd-reconf
+| | [Tags] | 1518B | 2C
+| | frame_size=${1518} | phy_cores=${2}
+
+| tc06-1518B-4c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm1t-testpmd-reconf
+| | [Tags] | 1518B | 4C
+| | frame_size=${1518} | phy_cores=${4}
+
+| tc07-9000B-1c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm1t-testpmd-reconf
+| | [Tags] | 9000B | 1C
+| | frame_size=${9000} | phy_cores=${1}
+
+| tc08-9000B-2c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm1t-testpmd-reconf
+| | [Tags] | 9000B | 2C
+| | frame_size=${9000} | phy_cores=${2}
+
+| tc09-9000B-4c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm1t-testpmd-reconf
+| | [Tags] | 9000B | 4C
+| | frame_size=${9000} | phy_cores=${4}
+
+| tc10-IMIX-1c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm1t-testpmd-reconf
+| | [Tags] | IMIX | 1C
+| | frame_size=IMIX_v4_1 | phy_cores=${1}
+
+| tc11-IMIX-2c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm1t-testpmd-reconf
+| | [Tags] | IMIX | 2C
+| | frame_size=IMIX_v4_1 | phy_cores=${2}
+
+| tc12-IMIX-4c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm1t-testpmd-reconf
+| | [Tags] | IMIX | 4C
+| | frame_size=IMIX_v4_1 | phy_cores=${4}
diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm2t-testpmd-reconf.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm2t-testpmd-reconf.robot
new file mode 100644
index 0000000000..b02e4aa787
--- /dev/null
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm2t-testpmd-reconf.robot
@@ -0,0 +1,160 @@
+# Copyright (c) 2019 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 | 2_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | RECONF
+| ... | NIC_Intel-X710 | L2BDMACLRN | ENCAP | VXLAN | L2OVRLAY | IP4UNRLAY
+| ... | VHOST | VM | VHOST_1024 | VXLAN | DOT1Q | NF_DENSITY | NF_TESTPMD
+| ... | CHAIN | 6R1C | 1_ADDED_CHAIN | 6VM2T
+| ...
+| Suite Setup | Setup suite single link | performance
+| Suite Teardown | Tear down suite | performance
+| Test Setup | Setup test
+| Test Teardown | Tear down test | performance | vhost
+| ...
+| Test Template | Local Template
+| ...
+| Documentation | *RFC2544: Packet loss L2BD test cases with Dot1Q and
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
+| ...
+| ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
+| ... | with single links between nodes.
+| ... | *[Enc] Packet Encapsulations:* Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 for L2\
+| ... | switching of IPv4. Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 is applied on link\
+| ... | between DUT1 and TG.
+| ... | *[Cfg] DUT configuration:* DUT1 is configured with L2 bridge-\
+| ... | domain and MAC learning enabled. Qemu VNFs are connected\
+| ... | to VPP via vhost-user interfaces. Guest is running testpmd l2xc\
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1 is\
+| ... | tested with ${nic_name}.
+| ... | *[Ver] TG verification:* TG finds and throughput NDR (Non Drop\
+| ... | Rate) with zero packet loss tolerance, then measured loss at this load\
+| ... | while additional chain is configured.\
+| ... | Test packets are generated by TG on links to DUTs. TG traffic profile\
+| ... | contains two L3 flow-groups (flow-group per direction, 256 flows per\
+| ... | flow-group) with all packets containing Ethernet header with .1Q, IPv4\
+| ... | header, UPD header, VXLAN header and static payload. MAC addresses are\
+| ... | matching MAC addresses of the TG node interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544, RFC7348.
+
+*** Variables ***
+| @{plugins_to_enable}= | dpdk_plugin.so
+| ${osi_layer}= | L3
+| ${nic_name}= | Intel-X710
+| ${overhead}= | ${54}
+| ${nf_dtcr}= | ${1}
+| ${nf_dtc}= | ${1}
+| ${nf_chains}= | ${6}
+| ${nf_added_chains}= | ${1}
+| ${nf_nodes}= | ${1}
+# Traffic profile:
+| ${traffic_profile}=
+| ... | trex-sl-dot1qip4vxlan-ip4src${nf_chains}udpsrcrnd
+
+*** Keywords ***
+| Local Template
+| | [Documentation]
+| | ... | [Cfg] DUT runs Dot1Q-IP4-Vxlan L2BD switching config.\
+| | ... | Each DUT uses ${phy_cores} physical core(s) for worker threads.
+| | ... | [Ver] Measure packet loss during reconfig at NDR load.\
+| | ...
+| | ... | *Arguments:*
+| | ... | - frame_size - Framesize in Bytes in integer or string (IMIX_v4_1).
+| | ... | Type: integer, string
+| | ... | - phy_cores - Number of worker threads to be used. Type: integer
+| | ... | - rxq - Number of Rx queues to be used. Type: integer
+| | ...
+| | [Arguments] | ${frame_size} | ${phy_cores} | ${rxq}=${None}
+| | ...
+| | Set Test Variable | \${frame_size}
+| | ...
+| | ${nf_total_chains}= | Evaluate | ${nf_chains} + ${nf_added_chains}
+| | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
+| | And Add PCI devices to all DUTs
+| | And Set Max Rate And Jumbo And Handle Multi Seg
+| | And Apply startup configuration on all VPP DUTs
+| | When Initialize layer interface
+| | ... | count=${nf_total_chains}
+| | And Initialize layer dot1q
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_chains}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes}
+| | And Configure chains of NFs connected via vhost-user
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes} | jumbo=${jumbo}
+| | ... | use_tuned_cfs=${False} | auto_scale=${False} | vnf=testpmd_io
+| | ${bidirectional_throughput}= | Find Throughput Using MLRsearch
+| | ${unidirectional_throughput}= | Evaluate | ${bidirectional_throughput} / 2.0
+| | Start Traffic on Background | ${unidirectional_throughput}pps
+| | And Initialize layer dot1q
+| | ... | count=${nf_total_chains} | vlan_per_chain=${False}
+| | ... | start=${nf_chains+1}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_total_chains} | start=${nf_chains+1}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_total_chains} | nf_nodes=${nf_nodes}
+| | ... | start=${nf_chains+1}
+| | ${result}= | Stop Running Traffic
+| | Display Reconfig Test Message | ${result}
+
+*** Test Cases ***
+| tc01-118B-1c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm2t-testpmd-reconf
+| | [Tags] | 118B | 1C
+| | frame_size=${118} | phy_cores=${1}
+
+| tc02-118B-2c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm2t-testpmd-reconf
+| | [Tags] | 118B | 2C
+| | frame_size=${118} | phy_cores=${2}
+
+| tc03-118B-4c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm2t-testpmd-reconf
+| | [Tags] | 118B | 4C
+| | frame_size=${118} | phy_cores=${4}
+
+| tc04-1518B-1c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm2t-testpmd-reconf
+| | [Tags] | 1518B | 1C
+| | frame_size=${1518} | phy_cores=${1}
+
+| tc05-1518B-2c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm2t-testpmd-reconf
+| | [Tags] | 1518B | 2C
+| | frame_size=${1518} | phy_cores=${2}
+
+| tc06-1518B-4c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm2t-testpmd-reconf
+| | [Tags] | 1518B | 4C
+| | frame_size=${1518} | phy_cores=${4}
+
+| tc07-9000B-1c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm2t-testpmd-reconf
+| | [Tags] | 9000B | 1C
+| | frame_size=${9000} | phy_cores=${1}
+
+| tc08-9000B-2c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm2t-testpmd-reconf
+| | [Tags] | 9000B | 2C
+| | frame_size=${9000} | phy_cores=${2}
+
+| tc09-9000B-4c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm2t-testpmd-reconf
+| | [Tags] | 9000B | 4C
+| | frame_size=${9000} | phy_cores=${4}
+
+| tc10-IMIX-1c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm2t-testpmd-reconf
+| | [Tags] | IMIX | 1C
+| | frame_size=IMIX_v4_1 | phy_cores=${1}
+
+| tc11-IMIX-2c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm2t-testpmd-reconf
+| | [Tags] | IMIX | 2C
+| | frame_size=IMIX_v4_1 | phy_cores=${2}
+
+| tc12-IMIX-4c-dot1qip4vxlan-l2bd-6ch-1ach-12vh-6vm2t-testpmd-reconf
+| | [Tags] | IMIX | 4C
+| | frame_size=IMIX_v4_1 | phy_cores=${4}
diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-8ch-16vh-8vm1t-testpmd-ndrpdr.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-8ch-16vh-8vm1t-testpmd-ndrpdr.robot
index 88f3f8cf90..3995fda452 100644
--- a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-8ch-16vh-8vm1t-testpmd-ndrpdr.robot
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-8ch-16vh-8vm1t-testpmd-ndrpdr.robot
@@ -27,7 +27,7 @@
 | Test Template | Local Template
 | ...
 | Documentation | *RFC2544: Packet throughput L2BD test cases with Dot1Q and
-| ... | VXLANoIPv4 and 16 vhost 8 chains 8 VMs*
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
 | ...
 | ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
 | ... | with single links between nodes.
@@ -88,7 +88,7 @@
 | | When Initialize layer interface
 | | ... | count=${nf_chains}
 | | And Initialize layer dot1q
-| | ... | count=${nf_chains} | create=${False}
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
 | | And Initialize layer ip4vxlan
 | | ... | count=${nf_chains}
 | | And Initialize L2 bridge domains for multiple chains with Vhost-User
diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-8ch-16vh-8vm2t-testpmd-ndrpdr.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-8ch-16vh-8vm2t-testpmd-ndrpdr.robot
index 3c5764ddcc..ab67c244df 100644
--- a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-8ch-16vh-8vm2t-testpmd-ndrpdr.robot
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-8ch-16vh-8vm2t-testpmd-ndrpdr.robot
@@ -27,7 +27,7 @@
 | Test Template | Local Template
 | ...
 | Documentation | *RFC2544: Packet throughput L2BD test cases with Dot1Q and
-| ... | VXLANoIPv4 and 16 vhosts 8 chains 8 VMs*
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
 | ...
 | ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
 | ... | with single links between nodes.
@@ -88,7 +88,7 @@
 | | When Initialize layer interface
 | | ... | count=${nf_chains}
 | | And Initialize layer dot1q
-| | ... | count=${nf_chains} | create=${False}
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
 | | And Initialize layer ip4vxlan
 | | ... | count=${nf_chains}
 | | And Initialize L2 bridge domains for multiple chains with Vhost-User
diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm1t-testpmd-reconf.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm1t-testpmd-reconf.robot
new file mode 100644
index 0000000000..e8846ac9fe
--- /dev/null
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm1t-testpmd-reconf.robot
@@ -0,0 +1,160 @@
+# Copyright (c) 2019 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 | 2_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | RECONF
+| ... | NIC_Intel-X710 | L2BDMACLRN | ENCAP | VXLAN | L2OVRLAY | IP4UNRLAY
+| ... | VHOST | VM | VHOST_1024 | VXLAN | DOT1Q | NF_DENSITY | NF_TESTPMD
+| ... | CHAIN | 8R1C | 1_ADDED_CHAIN | 8VM1T
+| ...
+| Suite Setup | Setup suite single link | performance
+| Suite Teardown | Tear down suite | performance
+| Test Setup | Setup test
+| Test Teardown | Tear down test | performance | vhost
+| ...
+| Test Template | Local Template
+| ...
+| Documentation | *RFC2544: Packet loss L2BD test cases with Dot1Q and
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
+| ...
+| ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
+| ... | with single links between nodes.
+| ... | *[Enc] Packet Encapsulations:* Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 for L2\
+| ... | switching of IPv4. Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 is applied on link\
+| ... | between DUT1 and TG.
+| ... | *[Cfg] DUT configuration:* DUT1 is configured with L2 bridge-\
+| ... | domain and MAC learning enabled. Qemu VNFs are connected\
+| ... | to VPP via vhost-user interfaces. Guest is running testpmd l2xc\
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1 is\
+| ... | tested with ${nic_name}.
+| ... | *[Ver] TG verification:* TG finds and throughput NDR (Non Drop\
+| ... | Rate) with zero packet loss tolerance, then measured loss at this load\
+| ... | while additional chain is configured.\
+| ... | Test packets are generated by TG on links to DUTs. TG traffic profile\
+| ... | contains two L3 flow-groups (flow-group per direction, 256 flows per\
+| ... | flow-group) with all packets containing Ethernet header with .1Q, IPv4\
+| ... | header, UPD header, VXLAN header and static payload. MAC addresses are\
+| ... | matching MAC addresses of the TG node interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544, RFC7348.
+
+*** Variables ***
+| @{plugins_to_enable}= | dpdk_plugin.so
+| ${osi_layer}= | L3
+| ${nic_name}= | Intel-X710
+| ${overhead}= | ${54}
+| ${nf_dtcr}= | ${2}
+| ${nf_dtc}= | ${0.5}
+| ${nf_chains}= | ${8}
+| ${nf_added_chains}= | ${1}
+| ${nf_nodes}= | ${1}
+# Traffic profile:
+| ${traffic_profile}=
+| ... | trex-sl-dot1qip4vxlan-ip4src${nf_chains}udpsrcrnd
+
+*** Keywords ***
+| Local Template
+| | [Documentation]
+| | ... | [Cfg] DUT runs Dot1Q-IP4-Vxlan L2BD switching config.\
+| | ... | Each DUT uses ${phy_cores} physical core(s) for worker threads.
+| | ... | [Ver] Measure packet loss during reconfig at NDR load.\
+| | ...
+| | ... | *Arguments:*
+| | ... | - frame_size - Framesize in Bytes in integer or string (IMIX_v4_1).
+| | ... | Type: integer, string
+| | ... | - phy_cores - Number of worker threads to be used. Type: integer
+| | ... | - rxq - Number of Rx queues to be used. Type: integer
+| | ...
+| | [Arguments] | ${frame_size} | ${phy_cores} | ${rxq}=${None}
+| | ...
+| | Set Test Variable | \${frame_size}
+| | ...
+| | ${nf_total_chains}= | Evaluate | ${nf_chains} + ${nf_added_chains}
+| | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
+| | And Add PCI devices to all DUTs
+| | And Set Max Rate And Jumbo And Handle Multi Seg
+| | And Apply startup configuration on all VPP DUTs
+| | When Initialize layer interface
+| | ... | count=${nf_total_chains}
+| | And Initialize layer dot1q
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_chains}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes}
+| | And Configure chains of NFs connected via vhost-user
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes} | jumbo=${jumbo}
+| | ... | use_tuned_cfs=${False} | auto_scale=${False} | vnf=testpmd_io
+| | ${bidirectional_throughput}= | Find Throughput Using MLRsearch
+| | ${unidirectional_throughput}= | Evaluate | ${bidirectional_throughput} / 2.0
+| | Start Traffic on Background | ${unidirectional_throughput}pps
+| | And Initialize layer dot1q
+| | ... | count=${nf_total_chains} | vlan_per_chain=${False}
+| | ... | start=${nf_chains+1}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_total_chains} | start=${nf_chains+1}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_total_chains} | nf_nodes=${nf_nodes}
+| | ... | start=${nf_chains+1}
+| | ${result}= | Stop Running Traffic
+| | Display Reconfig Test Message | ${result}
+
+*** Test Cases ***
+| tc01-118B-1c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm1t-testpmd-reconf
+| | [Tags] | 118B | 1C
+| | frame_size=${118} | phy_cores=${1}
+
+| tc02-118B-2c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm1t-testpmd-reconf
+| | [Tags] | 118B | 2C
+| | frame_size=${118} | phy_cores=${2}
+
+| tc03-118B-4c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm1t-testpmd-reconf
+| | [Tags] | 118B | 4C
+| | frame_size=${118} | phy_cores=${4}
+
+| tc04-1518B-1c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm1t-testpmd-reconf
+| | [Tags] | 1518B | 1C
+| | frame_size=${1518} | phy_cores=${1}
+
+| tc05-1518B-2c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm1t-testpmd-reconf
+| | [Tags] | 1518B | 2C
+| | frame_size=${1518} | phy_cores=${2}
+
+| tc06-1518B-4c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm1t-testpmd-reconf
+| | [Tags] | 1518B | 4C
+| | frame_size=${1518} | phy_cores=${4}
+
+| tc07-9000B-1c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm1t-testpmd-reconf
+| | [Tags] | 9000B | 1C
+| | frame_size=${9000} | phy_cores=${1}
+
+| tc08-9000B-2c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm1t-testpmd-reconf
+| | [Tags] | 9000B | 2C
+| | frame_size=${9000} | phy_cores=${2}
+
+| tc09-9000B-4c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm1t-testpmd-reconf
+| | [Tags] | 9000B | 4C
+| | frame_size=${9000} | phy_cores=${4}
+
+| tc10-IMIX-1c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm1t-testpmd-reconf
+| | [Tags] | IMIX | 1C
+| | frame_size=IMIX_v4_1 | phy_cores=${1}
+
+| tc11-IMIX-2c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm1t-testpmd-reconf
+| | [Tags] | IMIX | 2C
+| | frame_size=IMIX_v4_1 | phy_cores=${2}
+
+| tc12-IMIX-4c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm1t-testpmd-reconf
+| | [Tags] | IMIX | 4C
+| | frame_size=IMIX_v4_1 | phy_cores=${4}
diff --git a/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm2t-testpmd-reconf.robot b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm2t-testpmd-reconf.robot
new file mode 100644
index 0000000000..cdd79aba3a
--- /dev/null
+++ b/tests/vpp/perf/nfv_density/vm_vhost/chain_dot1qip4vxlan/2n-10ge2p1x710-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm2t-testpmd-reconf.robot
@@ -0,0 +1,160 @@
+# Copyright (c) 2019 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 | 2_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | RECONF
+| ... | NIC_Intel-X710 | L2BDMACLRN | ENCAP | VXLAN | L2OVRLAY | IP4UNRLAY
+| ... | VHOST | VM | VHOST_1024 | VXLAN | DOT1Q | NF_DENSITY | NF_TESTPMD
+| ... | CHAIN | 8R1C | 1_ADDED_CHAIN | 8VM2T
+| ...
+| Suite Setup | Setup suite single link | performance
+| Suite Teardown | Tear down suite | performance
+| Test Setup | Setup test
+| Test Teardown | Tear down test | performance | vhost
+| ...
+| Test Template | Local Template
+| ...
+| Documentation | *RFC2544: Packet loss L2BD test cases with Dot1Q and
+| ... | VXLANoIPv4 with ${nf_chains} instances, ${nf_nodes} VMs per instance.*
+| ...
+| ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology\
+| ... | with single links between nodes.
+| ... | *[Enc] Packet Encapsulations:* Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 for L2\
+| ... | switching of IPv4. Dot1q-IPv4-UDP-VXLAN-Eth-IPv4 is applied on link\
+| ... | between DUT1 and TG.
+| ... | *[Cfg] DUT configuration:* DUT1 is configured with L2 bridge-\
+| ... | domain and MAC learning enabled. Qemu VNFs are connected\
+| ... | to VPP via vhost-user interfaces. Guest is running testpmd l2xc\
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1 is\
+| ... | tested with ${nic_name}.
+| ... | *[Ver] TG verification:* TG finds and throughput NDR (Non Drop\
+| ... | Rate) with zero packet loss tolerance, then measured loss at this load\
+| ... | while additional chain is configured.\
+| ... | Test packets are generated by TG on links to DUTs. TG traffic profile\
+| ... | contains two L3 flow-groups (flow-group per direction, 256 flows per\
+| ... | flow-group) with all packets containing Ethernet header with .1Q, IPv4\
+| ... | header, UPD header, VXLAN header and static payload. MAC addresses are\
+| ... | matching MAC addresses of the TG node interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544, RFC7348.
+
+*** Variables ***
+| @{plugins_to_enable}= | dpdk_plugin.so
+| ${osi_layer}= | L3
+| ${nic_name}= | Intel-X710
+| ${overhead}= | ${54}
+| ${nf_dtcr}= | ${1}
+| ${nf_dtc}= | ${1}
+| ${nf_chains}= | ${8}
+| ${nf_added_chains}= | ${1}
+| ${nf_nodes}= | ${1}
+# Traffic profile:
+| ${traffic_profile}=
+| ... | trex-sl-dot1qip4vxlan-ip4src${nf_chains}udpsrcrnd
+
+*** Keywords ***
+| Local Template
+| | [Documentation]
+| | ... | [Cfg] DUT runs Dot1Q-IP4-Vxlan L2BD switching config.\
+| | ... | Each DUT uses ${phy_cores} physical core(s) for worker threads.
+| | ... | [Ver] Measure packet loss during reconfig at NDR load.\
+| | ...
+| | ... | *Arguments:*
+| | ... | - frame_size - Framesize in Bytes in integer or string (IMIX_v4_1).
+| | ... | Type: integer, string
+| | ... | - phy_cores - Number of worker threads to be used. Type: integer
+| | ... | - rxq - Number of Rx queues to be used. Type: integer
+| | ...
+| | [Arguments] | ${frame_size} | ${phy_cores} | ${rxq}=${None}
+| | ...
+| | Set Test Variable | \${frame_size}
+| | ...
+| | ${nf_total_chains}= | Evaluate | ${nf_chains} + ${nf_added_chains}
+| | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
+| | And Add PCI devices to all DUTs
+| | And Set Max Rate And Jumbo And Handle Multi Seg
+| | And Apply startup configuration on all VPP DUTs
+| | When Initialize layer interface
+| | ... | count=${nf_total_chains}
+| | And Initialize layer dot1q
+| | ... | count=${nf_chains} | vlan_per_chain=${False}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_chains}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes}
+| | And Configure chains of NFs connected via vhost-user
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes} | jumbo=${jumbo}
+| | ... | use_tuned_cfs=${False} | auto_scale=${False} | vnf=testpmd_io
+| | ${bidirectional_throughput}= | Find Throughput Using MLRsearch
+| | ${unidirectional_throughput}= | Evaluate | ${bidirectional_throughput} / 2.0
+| | Start Traffic on Background | ${unidirectional_throughput}pps
+| | And Initialize layer dot1q
+| | ... | count=${nf_total_chains} | vlan_per_chain=${False}
+| | ... | start=${nf_chains+1}
+| | And Initialize layer ip4vxlan
+| | ... | count=${nf_total_chains} | start=${nf_chains+1}
+| | And Initialize L2 bridge domains for multiple chains with Vhost-User
+| | ... | nf_chains=${nf_total_chains} | nf_nodes=${nf_nodes}
+| | ... | start=${nf_chains+1}
+| | ${result}= | Stop Running Traffic
+| | Display Reconfig Test Message | ${result}
+
+*** Test Cases ***
+| tc01-118B-1c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm2t-testpmd-reconf
+| | [Tags] | 118B | 1C
+| | frame_size=${118} | phy_cores=${1}
+
+| tc02-118B-2c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm2t-testpmd-reconf
+| | [Tags] | 118B | 2C
+| | frame_size=${118} | phy_cores=${2}
+
+| tc03-118B-4c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm2t-testpmd-reconf
+| | [Tags] | 118B | 4C
+| | frame_size=${118} | phy_cores=${4}
+
+| tc04-1518B-1c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm2t-testpmd-reconf
+| | [Tags] | 1518B | 1C
+| | frame_size=${1518} | phy_cores=${1}
+
+| tc05-1518B-2c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm2t-testpmd-reconf
+| | [Tags] | 1518B | 2C
+| | frame_size=${1518} | phy_cores=${2}
+
+| tc06-1518B-4c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm2t-testpmd-reconf
+| | [Tags] | 1518B | 4C
+| | frame_size=${1518} | phy_cores=${4}
+
+| tc07-9000B-1c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm2t-testpmd-reconf
+| | [Tags] | 9000B | 1C
+| | frame_size=${9000} | phy_cores=${1}
+
+| tc08-9000B-2c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm2t-testpmd-reconf
+| | [Tags] | 9000B | 2C
+| | frame_size=${9000} | phy_cores=${2}
+
+| tc09-9000B-4c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm2t-testpmd-reconf
+| | [Tags] | 9000B | 4C
+| | frame_size=${9000} | phy_cores=${4}
+
+| tc10-IMIX-1c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm2t-testpmd-reconf
+| | [Tags] | IMIX | 1C
+| | frame_size=IMIX_v4_1 | phy_cores=${1}
+
+| tc11-IMIX-2c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm2t-testpmd-reconf
+| | [Tags] | IMIX | 2C
+| | frame_size=IMIX_v4_1 | phy_cores=${2}
+
+| tc12-IMIX-4c-dot1qip4vxlan-l2bd-8ch-1ach-16vh-8vm2t-testpmd-reconf
+| | [Tags] | IMIX | 4C
+| | frame_size=IMIX_v4_1 | phy_cores=${4}