CSIT-1521 Convert NestedVM testcase into KernelVM

Change-Id: Ic493253dc29dad4fc7e6541e4b839ca5898a6a40
Signed-off-by: Peter Mikus <pmikus@cisco.com>

24 files changed, 239 insertions, 1121 deletions

diff --git a/tests/vpp/perf/__init__.robot b/tests/vpp/perf/__init__.robot
index 25ed403d8a..1f65414306 100644
--- a/tests/vpp/perf/__init__.robot
+++ b/tests/vpp/perf/__init__.robot
@@ -37,14 +37,10 @@
 | | ... | Setup suite Variables. Variables are used across performance testing.
 | | ...
 | | ... | _NOTE:_ This KW sets following suite variables:
-| | ... | - perf_vm_image - Guest VM disk image
-| | ... | - perf_qemu_path - Path prefix to QEMU binary
-| | ... | - use_tuned_cfs - Switch to set scheduler policy
-| | ... | - qemu_build - Whether Qemu will be built
-| | ... | - pkt_trace - Switch to enable packet trace for test
-| | ... | - dut_stats - Switch to enable DUT statistics
-| | ... | - uio_driver - Default UIO driver
-| | ... | - plugins_to_enable - List of plugins to be enabled for test
+| | ... | - pkt_trace - Switch to enable packet trace for test.
+| | ... | - dut_stats - Switch to enable DUT statistics.
+| | ... | - plugins_to_enable - List of plugins to be enabled for test.
+| | ... | - packages_dir - Directory with VPP binary packages.
 | | ...
 | | Set Global Variable | ${pkt_trace} | ${False}
 | | Set Global Variable | ${dut_stats} | ${True}
diff --git a/tests/vpp/perf/vm_vhost/10ge2p1x710-1lbvpplacp-dot1q-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot b/tests/vpp/perf/vm_vhost/10ge2p1x710-1lbvpplacp-dot1q-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot
index 504320a8b2..6040a320f2 100644
--- a/tests/vpp/perf/vm_vhost/10ge2p1x710-1lbvpplacp-dot1q-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot
+++ b/tests/vpp/perf/vm_vhost/10ge2p1x710-1lbvpplacp-dot1q-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot
@@ -26,13 +26,12 @@
 | Suite Teardown | Tear down 3-node performance topology
 | ...
 | Test Setup | Set up performance test
-| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
-| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
-| ... | dut2_node=${dut2} | dut2_vm_refs=${dut2_vm_refs}
+| Test Teardown | Tear down performance test with vhost
 | ...
 | Test Template | Local Template
 | ...
-| Documentation | *RFC2544: Pkt throughput L2BD test cases with vhost and vpp link bonding*
+| Documentation | *RFC2544: Pkt throughput L2BD test cases with vhost and vpp
+| ... | link bonding*
 | ...
 | ... | *[Top] Network Topologies:* TG-DUT1-DUT2-TG 3-node circular topology
 | ... | with single links between nodes.
@@ -40,13 +39,10 @@
 | ... | tagging is applied on link between DUT1 and DUT2.
 | ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with VPP
 | ... | link bonding (mode LACP, transmit policy l34) on link between DUT1 and
-| ... | DUT2 and L2 bridge-domain with MAC learning enabled. Qemu Guest is
-| ... | connected to VPP via vhost-user interfaces. Guest is running DPDK
-| ... | testpmd interconnecting vhost-user interfaces using 5 cores pinned to
-| ... | cpus 5-9 and 2048M memory. Testpmd is using socket-mem=1024M (512x2M
-| ... | hugepages), 5 cores (1 main core and 4 cores dedicated for io),
-| ... | forwarding mode is set to io, rxd/txd=1024, burst=64. DUT1, DUT2 are
-| ... | tested with ${nic_name}.\
+| ... | DUT2 and L2 bridge-domain with MAC learning enabled. Qemu VNFs are \
+| ... | connected to VPP via vhost-user interfaces. Guest is running VPP l2xc \
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1/DUT2 is \
+| ... | tested with ${nic_name}.
 | ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
 | ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
 | ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
@@ -57,12 +53,17 @@
 | ... | flow-group) with all packets containing Ethernet header, IPv4 header
 | ... | with IP protocol=61 and static payload. MAC addresses are matching MAC
 | ... | addresses of the TG node interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544.
 
 *** Variables ***
 | ${nic_name}= | Intel-X710
 | ${overhead}= | ${4}
 | ${subid}= | 10
 | ${tag_rewrite}= | pop-1
+| ${nf_dtcr}= | ${1}
+| ${nf_dtc}= | ${1}
+| ${nf_chains}= | ${1}
+| ${nf_nodes}= | ${1}
 # Link bonding config
 | ${bond_mode}= | lacp
 | ${lb_mode}= | l34
@@ -88,10 +89,6 @@
 | | ...
 | | Set Test Variable | \${frame_size}
 | | ...
-| | ${dut1_vm_refs}= | Create Dictionary
-| | ${dut2_vm_refs}= | Create Dictionary
-| | Set Test Variable | ${dut1_vm_refs}
-| | Set Test Variable | ${dut2_vm_refs}
 | | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
 | | And Add PCI devices to all DUTs
 | | And Add VLAN Strip Offload switch off between DUTs in 3-node single link topology
@@ -100,10 +97,9 @@
 | | When Initialize L2 bridge domains with Vhost-User and VLAN with VPP link bonding in a 3-node circular topology
 | | ... | ${bd_id1} | ${bd_id2} | ${subid}
 | | ... | ${tag_rewrite} | ${bond_mode} | ${lb_mode}
-| | And Configure guest VMs with dpdk-testpmd connected via vhost-user
-| | ... | vm_count=${1} | jumbo=${jumbo} | perf_qemu_qsz=${1024}
-| | ... | use_tuned_cfs=${False}
-| | And All Vpp Interfaces Ready Wait | ${nodes}
+| | And Configure chains of NFs connected via vhost-user
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes} | jumbo=${jumbo}
+| | ... | use_tuned_cfs=${False} | auto_scale=${True} | vnf=vpp_chain_l2xc
 | | Then Find NDR and PDR intervals using optimized search
 
 *** Test Cases ***
diff --git a/tests/vpp/perf/vm_vhost/10ge2p1x710-1lbvpplacp-dot1q-l2xcbase-eth-2vhostvr1024-1vm-ndrpdr.robot b/tests/vpp/perf/vm_vhost/10ge2p1x710-1lbvpplacp-dot1q-l2xcbase-eth-2vhostvr1024-1vm-ndrpdr.robot
index 7051a86140..8807dc5184 100644
--- a/tests/vpp/perf/vm_vhost/10ge2p1x710-1lbvpplacp-dot1q-l2xcbase-eth-2vhostvr1024-1vm-ndrpdr.robot
+++ b/tests/vpp/perf/vm_vhost/10ge2p1x710-1lbvpplacp-dot1q-l2xcbase-eth-2vhostvr1024-1vm-ndrpdr.robot
@@ -26,13 +26,12 @@
 | Suite Teardown | Tear down 3-node performance topology
 | ...
 | Test Setup | Set up performance test
-| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
-| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
-| ... | dut2_node=${dut2} | dut2_vm_refs=${dut2_vm_refs}
+| Test Teardown | Tear down performance test with vhost
 | ...
 | Test Template | Local Template
 | ...
-| Documentation | *RFC2544: Pkt throughput L2XC test cases with vhost and vpp link bonding*
+| Documentation | *RFC2544: Pkt throughput L2XC test cases with vhost and vpp
+| ... | link bonding*
 | ...
 | ... | *[Top] Network Topologies:* TG-DUT1-DUT2-TG 3-node circular topology
 | ... | with single links between nodes.
@@ -40,12 +39,10 @@
 | ... | tagging is applied on link between DUT1 and DUT2.
 | ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with VPP
 | ... | link bonding (mode LACP, transmit policy l34) on link between DUT1 and
-| ... | DUT2 and L2 cross- connect. Qemu Guest is connected to VPP via
-| ... | vhost-user interfaces. Guest is running DPDK testpmd interconnecting
-| ... | vhost-user interfaces using 5 cores pinned to cpus 5-9 and 2048M memory.
-| ... | Testpmd is using socket-mem=1024M (512x2M hugepages), 5 cores (1 main
-| ... | core and 4 cores dedicated for io), forwarding mode is set to io,
-| ... | rxd/txd=1024, burst=64. DUT1, DUT2 are tested with ${nic_name}.\
+| ... | DUT2 and L2 cross- connect. Qemu VNFs are \
+| ... | connected to VPP via vhost-user interfaces. Guest is running VPP l2xc \
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1/DUT2 is \
+| ... | tested with ${nic_name}.
 | ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
 | ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
 | ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
@@ -56,12 +53,17 @@
 | ... | flow-group) with all packets containing Ethernet header, IPv4 header
 | ... | with IP protocol=61 and static payload. MAC addresses are matching MAC
 | ... | addresses of the TG node interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544.
 
 *** Variables ***
 | ${nic_name}= | Intel-X710
 | ${overhead}= | ${4}
 | ${subid}= | 10
 | ${tag_rewrite}= | pop-1
+| ${nf_dtcr}= | ${1}
+| ${nf_dtc}= | ${1}
+| ${nf_chains}= | ${1}
+| ${nf_nodes}= | ${1}
 # Link bonding config
 | ${bond_mode}= | lacp
 | ${lb_mode}= | l34
@@ -85,10 +87,6 @@
 | | ...
 | | Set Test Variable | \${frame_size}
 | | ...
-| | ${dut1_vm_refs}= | Create Dictionary
-| | ${dut2_vm_refs}= | Create Dictionary
-| | Set Test Variable | ${dut1_vm_refs}
-| | Set Test Variable | ${dut2_vm_refs}
 | | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
 | | And Add PCI devices to all DUTs
 | | And Add VLAN Strip Offload switch off between DUTs in 3-node single link topology
@@ -96,10 +94,9 @@
 | | And Apply startup configuration on all VPP DUTs
 | | When Initialize L2 xconnect with Vhost-User and VLAN with VPP link bonding in 3-node circular topology
 | | ... | ${subid} | ${tag_rewrite} | ${bond_mode} | ${lb_mode}
-| | And Configure guest VMs with dpdk-testpmd connected via vhost-user
-| | ... | vm_count=${1} | jumbo=${jumbo} | perf_qemu_qsz=${1024}
-| | ... | use_tuned_cfs=${False}
-| | And All Vpp Interfaces Ready Wait | ${nodes}
+| | And Configure chains of NFs connected via vhost-user
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes} | jumbo=${jumbo}
+| | ... | use_tuned_cfs=${False} | auto_scale=${True} | vnf=vpp_chain_l2xc
 | | Then Find NDR and PDR intervals using optimized search
 
 *** Test Cases ***
diff --git a/tests/vpp/perf/vm_vhost/10ge2p1x710-2lbvpplacp-dot1q-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot b/tests/vpp/perf/vm_vhost/10ge2p1x710-2lbvpplacp-dot1q-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot
index f3e4a114f4..05925de881 100644
--- a/tests/vpp/perf/vm_vhost/10ge2p1x710-2lbvpplacp-dot1q-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot
+++ b/tests/vpp/perf/vm_vhost/10ge2p1x710-2lbvpplacp-dot1q-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot
@@ -26,13 +26,12 @@
 | Suite Teardown | Tear down 3-node performance topology
 | ...
 | Test Setup | Set up performance test
-| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
-| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
-| ... | dut2_node=${dut2} | dut2_vm_refs=${dut2_vm_refs}
+| Test Teardown | Tear down performance test with vhost
 | ...
 | Test Template | Local Template
 | ...
-| Documentation | *RFC2544: Pkt throughput L2BD test cases with vhost and vpp link bonding*
+| Documentation | *RFC2544: Pkt throughput L2BD test cases with vhost and vpp
+| ... | link bonding*
 | ...
 | ... | *[Top] Network Topologies:* TG-DUT1=DUT2-TG 3-node circular topology
 | ... | with single links between TG and DUT nodes and double link between DUT
@@ -41,13 +40,10 @@
 | ... | tagging is applied on link between DUT1 and DUT2.
 | ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with VPP
 | ... | link bonding (mode LACP, transmit policy l34) on link between DUT1 and
-| ... | DUT2 and L2 bridge-domain with MAC learning enabled. Qemu Guest is
-| ... | connected to VPP via vhost-user interfaces. Guest is running DPDK
-| ... | testpmd interconnecting vhost-user interfaces using 5 cores pinned to
-| ... | cpus 5-9 and 2048M memory. Testpmd is using socket-mem=1024M (512x2M
-| ... | hugepages), 5 cores (1 main core and 4 cores dedicated for io),
-| ... | forwarding mode is set to io, rxd/txd=1024, burst=64. DUT1, DUT2 are
-| ... | tested with ${nic_name}.\
+| ... | DUT2 and L2 bridge-domain with MAC learning enabled. Qemu VNFs are \
+| ... | connected to VPP via vhost-user interfaces. Guest is running VPP l2xc \
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1/DUT2 is \
+| ... | tested with ${nic_name}.
 | ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
 | ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
 | ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
@@ -58,12 +54,17 @@
 | ... | flow-group) with all packets containing Ethernet header, IPv4 header
 | ... | with IP protocol=61 and static payload. MAC addresses are matching MAC
 | ... | addresses of the TG node interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544.
 
 *** Variables ***
 | ${nic_name}= | Intel-X710
 | ${overhead}= | ${4}
 | ${subid}= | 10
 | ${tag_rewrite}= | pop-1
+| ${nf_dtcr}= | ${1}
+| ${nf_dtc}= | ${1}
+| ${nf_chains}= | ${1}
+| ${nf_nodes}= | ${1}
 # Link bonding config
 | ${bond_mode}= | lacp
 | ${lb_mode}= | l34
@@ -89,10 +90,6 @@
 | | ...
 | | Set Test Variable | \${frame_size}
 | | ...
-| | ${dut1_vm_refs}= | Create Dictionary
-| | ${dut2_vm_refs}= | Create Dictionary
-| | Set Test Variable | ${dut1_vm_refs}
-| | Set Test Variable | ${dut2_vm_refs}
 | | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
 | | And Add PCI devices to all DUTs
 | | And Add VLAN Strip Offload switch off between DUTs in 3-node double link topology
@@ -101,10 +98,9 @@
 | | When Initialize L2 bridge domains with Vhost-User and VLAN with VPP link bonding in a 3-node circular topology
 | | ... | ${bd_id1} | ${bd_id2} | ${subid}
 | | ... | ${tag_rewrite} | ${bond_mode} | ${lb_mode}
-| | And Configure guest VMs with dpdk-testpmd connected via vhost-user
-| | ... | vm_count=${1} | jumbo=${jumbo} | perf_qemu_qsz=${1024}
-| | ... | use_tuned_cfs=${False}
-| | And All Vpp Interfaces Ready Wait | ${nodes}
+| | And Configure chains of NFs connected via vhost-user
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes} | jumbo=${jumbo}
+| | ... | use_tuned_cfs=${False} | auto_scale=${True} | vnf=vpp_chain_l2xc
 | | Then Find NDR and PDR intervals using optimized search
 
 *** Test Cases ***
diff --git a/tests/vpp/perf/vm_vhost/10ge2p1x710-2lbvpplacp-dot1q-l2xcbase-eth-2vhostvr1024-1vm-ndrpdr.robot b/tests/vpp/perf/vm_vhost/10ge2p1x710-2lbvpplacp-dot1q-l2xcbase-eth-2vhostvr1024-1vm-ndrpdr.robot
index 5efe46bbb2..5265c18f58 100644
--- a/tests/vpp/perf/vm_vhost/10ge2p1x710-2lbvpplacp-dot1q-l2xcbase-eth-2vhostvr1024-1vm-ndrpdr.robot
+++ b/tests/vpp/perf/vm_vhost/10ge2p1x710-2lbvpplacp-dot1q-l2xcbase-eth-2vhostvr1024-1vm-ndrpdr.robot
@@ -26,13 +26,12 @@
 | Suite Teardown | Tear down 3-node performance topology
 | ...
 | Test Setup | Set up performance test
-| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
-| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
-| ... | dut2_node=${dut2} | dut2_vm_refs=${dut2_vm_refs}
+| Test Teardown | Tear down performance test with vhost
 | ...
 | Test Template | Local Template
 | ...
-| Documentation | *RFC2544: Pkt throughput L2XC test cases with vhost and vpp link bonding*
+| Documentation | *RFC2544: Pkt throughput L2XC test cases with vhost and vpp
+| ... | link bonding*
 | ...
 | ... | *[Top] Network Topologies:* TG-DUT1=DUT2-TG 3-node circular topology
 | ... | with single links between TG and DUT nodes and double link between DUT
@@ -41,12 +40,10 @@
 | ... | tagging is applied on link between DUT1 and DUT2.
 | ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with VPP
 | ... | link bonding (mode LACP, transmit policy l34) on link between DUT1 and
-| ... | DUT2 and L2 cross- connect. Qemu Guest is connected to VPP via
-| ... | vhost-user interfaces. Guest is running DPDK testpmd interconnecting
-| ... | vhost-user interfaces using 5 cores pinned to cpus 5-9 and 2048M memory.
-| ... | Testpmd is using socket-mem=1024M (512x2M hugepages), 5 cores (1 main
-| ... | core and 4 cores dedicated for io), forwarding mode is set to io,
-| ... | rxd/txd=1024, burst=64. DUT1, DUT2 are tested with ${nic_name}.\
+| ... | DUT2 and L2 cross- connect. Qemu VNFs are \
+| ... | connected to VPP via vhost-user interfaces. Guest is running VPP l2xc \
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1/DUT2 is \
+| ... | tested with ${nic_name}.
 | ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
 | ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
 | ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
@@ -57,12 +54,17 @@
 | ... | flow-group) with all packets containing Ethernet header, IPv4 header
 | ... | with IP protocol=61 and static payload. MAC addresses are matching MAC
 | ... | addresses of the TG node interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544.
 
 *** Variables ***
 | ${nic_name}= | Intel-X710
 | ${overhead}= | ${4}
 | ${subid}= | 10
 | ${tag_rewrite}= | pop-1
+| ${nf_dtcr}= | ${1}
+| ${nf_dtc}= | ${1}
+| ${nf_chains}= | ${1}
+| ${nf_nodes}= | ${1}
 # Link bonding config
 | ${bond_mode}= | lacp
 | ${lb_mode}= | l34
@@ -86,10 +88,6 @@
 | | ...
 | | Set Test Variable | \${frame_size}
 | | ...
-| | ${dut1_vm_refs}= | Create Dictionary
-| | ${dut2_vm_refs}= | Create Dictionary
-| | Set Test Variable | ${dut1_vm_refs}
-| | Set Test Variable | ${dut2_vm_refs}
 | | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
 | | And Add PCI devices to all DUTs
 | | And Add VLAN Strip Offload switch off between DUTs in 3-node double link topology
@@ -97,10 +95,9 @@
 | | And Apply startup configuration on all VPP DUTs
 | | When Initialize L2 xconnect with Vhost-User and VLAN with VPP link bonding in 3-node circular topology
 | | ... | ${subid} | ${tag_rewrite} | ${bond_mode} | ${lb_mode}
-| | And Configure guest VMs with dpdk-testpmd connected via vhost-user
-| | ... | vm_count=${1} | jumbo=${jumbo} | perf_qemu_qsz=${1024}
-| | ... | use_tuned_cfs=${False}
-| | And All Vpp Interfaces Ready Wait | ${nodes}
+| | And Configure chains of NFs connected via vhost-user
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes} | jumbo=${jumbo}
+| | ... | use_tuned_cfs=${False} | auto_scale=${True} | vnf=vpp_chain_l2xc
 | | Then Find NDR and PDR intervals using optimized search
 
 *** Test Cases ***
diff --git a/tests/vpp/perf/vm_vhost/10ge2p1x710-dot1q-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot b/tests/vpp/perf/vm_vhost/10ge2p1x710-dot1q-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot
index 304b03d6bb..ea2a5834c2 100644
--- a/tests/vpp/perf/vm_vhost/10ge2p1x710-dot1q-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot
+++ b/tests/vpp/perf/vm_vhost/10ge2p1x710-dot1q-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot
@@ -23,9 +23,7 @@
 | Suite Teardown | Tear down 3-node performance topology
 | ...
 | Test Setup | Set up performance test
-| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
-| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
-| ... | dut2_node=${dut2} | dut2_vm_refs=${dut2_vm_refs}
+| Test Teardown | Tear down performance test with vhost
 | ...
 | Test Template | Local Template
 | ...
@@ -37,10 +35,10 @@
 | ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for L2 switching of IPv4. IEEE\
 | ... | 802.1Q tagging is applied on link between DUT1 and DUT2.
 | ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with L2 bridge-\
-| ... | domain and MAC learning enabled. Qemu Guest is connected to VPP via\
-| ... | vhost-user interfaces. Guest is running DPDK testpmd interconnecting\
-| ... | vhost-user interfaces, forwarding mode is set to io, rxd/txd=1024.\
-| ... | DUT1 and DUT2 are tested with ${nic_name}.\
+| ... | domain and MAC learning enabled. Qemu VNFs are \
+| ... | connected to VPP via vhost-user interfaces. Guest is running VPP l2xc \
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1/DUT2 is \
+| ... | tested with ${nic_name}.
 | ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
 | ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
 | ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
@@ -61,6 +59,10 @@
 | ${tag_rewrite}= | pop-1
 | ${bd_id1}= | 1
 | ${bd_id2}= | 2
+| ${nf_dtcr}= | ${1}
+| ${nf_dtc}= | ${1}
+| ${nf_chains}= | ${1}
+| ${nf_nodes}= | ${1}
 # Traffic profile:
 | ${traffic_profile}= | trex-sl-3n-ethip4-ip4src254
 
@@ -81,19 +83,15 @@
 | | ...
 | | Set Test Variable | \${frame_size}
 | | ...
-| | ${dut1_vm_refs}= | Create Dictionary
-| | ${dut2_vm_refs}= | Create Dictionary
-| | Set Test Variable | ${dut1_vm_refs}
-| | Set Test Variable | ${dut2_vm_refs}
 | | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
 | | And Add PCI devices to all DUTs
 | | Set Max Rate And Jumbo And Handle Multi Seg
 | | And Apply startup configuration on all VPP DUTs
 | | When Initialize L2 bridge domains with Vhost-User and VLAN in circular topology
 | | ... | ${bd_id1} | ${bd_id2} | ${subid} | ${tag_rewrite}
-| | And Configure guest VMs with dpdk-testpmd connected via vhost-user
-| | ... | vm_count=${1} | jumbo=${jumbo} | perf_qemu_qsz=${1024}
-| | ... | use_tuned_cfs=${False}
+| | And Configure chains of NFs connected via vhost-user
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes} | jumbo=${jumbo}
+| | ... | use_tuned_cfs=${False} | auto_scale=${True} | vnf=vpp_chain_l2xc
 | | Then Find NDR and PDR intervals using optimized search
 
 *** Test Cases ***
diff --git a/tests/vpp/perf/vm_vhost/10ge2p1x710-dot1q-l2xcbase-eth-2vhostvr1024-1vm-ndrpdr.robot b/tests/vpp/perf/vm_vhost/10ge2p1x710-dot1q-l2xcbase-eth-2vhostvr1024-1vm-ndrpdr.robot
index 1f1d6e3890..76c613a6cb 100644
--- a/tests/vpp/perf/vm_vhost/10ge2p1x710-dot1q-l2xcbase-eth-2vhostvr1024-1vm-ndrpdr.robot
+++ b/tests/vpp/perf/vm_vhost/10ge2p1x710-dot1q-l2xcbase-eth-2vhostvr1024-1vm-ndrpdr.robot
@@ -22,9 +22,7 @@
 | Suite Teardown | Tear down 3-node performance topology
 | ...
 | Test Setup | Set up performance test
-| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
-| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
-| ... | dut2_node=${dut2} | dut2_vm_refs=${dut2_vm_refs}
+| Test Teardown | Tear down performance test with vhost
 | ...
 | Test Template | Local Template
 | ...
@@ -35,12 +33,10 @@
 | ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for L2 cross connect. 802.1q
 | ... | tagging is applied on link between DUT1 and DUT2.
 | ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with L2 cross-
-| ... | connect. Qemu Guest is connected to VPP via
-| ... | vhost-user interfaces. Guest is running DPDK testpmd interconnecting
-| ... | vhost-user interfaces using 5 cores pinned to cpus 5-9 and 2048M
-| ... | memory. Testpmd is using socket-mem=1024M (512x2M hugepages), 5 cores
-| ... | (1 main core and 4 cores dedicated for io), forwarding mode is set to
-| ... | io, rxd/txd=1024, burst=64. DUT1, DUT2 are tested with ${nic_name}.\
+| ... | connect. Qemu VNFs are \
+| ... | connected to VPP via vhost-user interfaces. Guest is running VPP l2xc \
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1/DUT2 is \
+| ... | tested with ${nic_name}.
 | ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
 | ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
 | ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
@@ -51,12 +47,17 @@
 | ... | flow-group) with all packets containing Ethernet header, IPv4 header
 | ... | with IP protocol=61 and static payload. MAC addresses are matching MAC
 | ... | addresses of the TG node interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544.
 
 *** Variables ***
 | ${nic_name}= | Intel-X710
 | ${overhead}= | ${4}
 | ${subid}= | 10
 | ${tag_rewrite}= | pop-1
+| ${nf_dtcr}= | ${1}
+| ${nf_dtc}= | ${1}
+| ${nf_chains}= | ${1}
+| ${nf_nodes}= | ${1}
 # Traffic profile:
 | ${traffic_profile}= | trex-sl-3n-ethip4-ip4src254
 
@@ -77,19 +78,15 @@
 | | ...
 | | Set Test Variable | \${frame_size}
 | | ...
-| | ${dut1_vm_refs}= | Create Dictionary
-| | ${dut2_vm_refs}= | Create Dictionary
-| | Set Test Variable | ${dut1_vm_refs}
-| | Set Test Variable | ${dut2_vm_refs}
 | | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
 | | And Add PCI devices to all DUTs
 | | Set Max Rate And Jumbo And Handle Multi Seg
 | | And Apply startup configuration on all VPP DUTs
 | | When Initialize L2 xconnect with Vhost-User and VLAN in 3-node circular topology
 | | ... | ${subid} | ${tag_rewrite}
-| | And Configure guest VMs with dpdk-testpmd connected via vhost-user
-| | ... | vm_count=${1} | jumbo=${jumbo} | perf_qemu_qsz=${1024}
-| | ... | use_tuned_cfs=${False}
+| | And Configure chains of NFs connected via vhost-user
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_nodes} | jumbo=${jumbo}
+| | ... | use_tuned_cfs=${False} | auto_scale=${True} | vnf=vpp_chain_l2xc
 | | Then Find NDR and PDR intervals using optimized search
 
 *** Test Cases ***
diff --git a/tests/vpp/perf/vm_vhost/10ge2p1x710-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot b/tests/vpp/perf/vm_vhost/10ge2p1x710-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot
index 8e9da645b0..ae426fe86d 100644
--- a/tests/vpp/perf/vm_vhost/10ge2p1x710-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot
+++ b/tests/vpp/perf/vm_vhost/10ge2p1x710-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot
@@ -22,9 +22,7 @@
 | Suite Teardown | Tear down 3-node performance topology
 | ...
 | Test Setup | Set up performance test
-| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
-| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
-| ... | dut2_node=${dut2} | dut2_vm_refs=${dut2_vm_refs}
+| Test Teardown | Tear down performance test with vhost
 | ...
 | Test Template | Local Template
 | ...
@@ -34,12 +32,10 @@
 | ... | with single links between nodes.
 | ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for L2 switching of IPv4.
 | ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with L2 bridge-
-| ... | domain and MAC learning enabled. Qemu Guest is connected to VPP via
-| ... | vhost-user interfaces. Guest is running DPDK testpmd interconnecting
-| ... | vhost-user interfaces using 5 cores pinned to cpus on NUMA1 and 2048M
-| ... | memory. Testpmd is using socket-mem=1024M (512x2M hugepages), 5 cores
-| ... | (1 main core and 4 cores dedicated for io), forwarding mode is set to
-| ... | io, rxd/txd=1024, burst=64. DUT1, DUT2 are tested with ${nic_name}.\
+| ... | domain and MAC learning enabled. Qemu VNFs are \
+| ... | connected to VPP via vhost-user interfaces. Guest is running VPP l2xc \
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1/DUT2 is \
+| ... | tested with ${nic_name}.
 | ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
 | ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
 | ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
@@ -56,6 +52,10 @@
 *** Variables ***
 | ${nic_name}= | Intel-X710
 | ${overhead}= | ${0}
+| ${nf_dtcr}= | ${1}
+| ${nf_dtc}= | ${1}
+| ${nf_chains}= | ${1}
+| ${nf_nodes}= | ${1}
 # Traffic profile:
 | ${traffic_profile}= | trex-sl-3n-ethip4-ip4src254
 
@@ -76,18 +76,14 @@
 | | ...
 | | Set Test Variable | \${frame_size}
 | | ...
-| | ${dut1_vm_refs}= | Create Dictionary
-| | ${dut2_vm_refs}= | Create Dictionary
-| | Set Test Variable | ${dut1_vm_refs}
-| | Set Test Variable | ${dut2_vm_refs}
 | | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
 | | And Add PCI devices to all DUTs
 | | Set Max Rate And Jumbo And Handle Multi Seg
 | | And Apply startup configuration on all VPP DUTs
-| | When Initialize L2 bridge domains with Vhost-User | nf_nodes=${1}
-| | And Configure guest VMs with dpdk-testpmd connected via vhost-user
-| | ... | vm_count=${1} | jumbo=${jumbo} | perf_qemu_qsz=${1024}
-| | ... | use_tuned_cfs=${False}
+| | When Initialize L2 bridge domains with Vhost-User | 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=${False} | auto_scale=${True} | vnf=vpp_chain_l2xc
 | | Then Find NDR and PDR intervals using optimized search
 
 *** Test Cases ***
diff --git a/tests/vpp/perf/vm_vhost/10ge2p1x710-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr.robot b/tests/vpp/perf/vm_vhost/10ge2p1x710-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr.robot
deleted file mode 100644
index f7222c243c..0000000000
--- a/tests/vpp/perf/vm_vhost/10ge2p1x710-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr.robot
+++ /dev/null
@@ -1,139 +0,0 @@
-# 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/performance/performance_setup.robot
-| ...
-| Force Tags | 3_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | NDRPDR
-| ... | NIC_Intel-X710 | ETH | L2BDMACLRN | BASE | VHOST | 2VM | VHOST_1024
-| ...
-| Suite Setup | Set up 3-node performance topology with DUT's NIC model
-| ... | L2 | ${nic_name}
-| Suite Teardown | Tear down 3-node performance topology
-| ...
-| Test Setup | Set up performance test
-| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
-| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
-| ... | dut2_node=${dut2} | dut2_vm_refs=${dut2_vm_refs}
-| ...
-| Test Template | Local Template
-| ...
-| Documentation | *RFC2544: Pkt throughput L2BD test cases with vhost*
-| ...
-| ... | *[Top] Network Topologies:* TG-DUT1-DUT2-TG 3-node circular topology
-| ... | with single links between nodes.
-| ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for L2 switching of IPv4.
-| ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with L2 bridge-
-| ... | domains and MAC learning enabled. Qemu Guests are connected to VPP via
-| ... | vhost-user interfaces. Guests are running DPDK testpmd interconnecting
-| ... | vhost-user interfaces using 5 cores pinned to cpus 6-10 and 11-15 and
-| ... | 2048M memory. Testpmd is using socket-mem=1024M (512x2M hugepages),
-| ... | 5 cores (1 main core and 4 cores dedicated for io), forwarding mode is
-| ... | set to io, rxd/txd=1024, burst=64. DUT1, DUT2 are tested
-| ... | with ${nic_name}.\
-| ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
-| ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
-| ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
-| ... | of packets transmitted. NDR and PDR are discovered for different\
-| ... | Ethernet L2 frame sizes using MLRsearch library.\
-| ... | Test packets are generated by TG on links to DUTs. TG traffic profile
-| ... | contains two L3 flow-groups (flow-group per direction, 254 flows per
-| ... | flow-group) with all packets containing Ethernet header, IPv4 header
-| ... | with IP protocol=61 and static payload. MAC addresses are matching MAC
-| ... | addresses of the TG node interfaces.
-
-*** Variables ***
-| ${nic_name}= | Intel-X710
-| ${overhead}= | ${0}
-# Traffic profile:
-| ${traffic_profile}= | trex-sl-3n-ethip4-ip4src254
-
-*** Keywords ***
-| Local Template
-| | [Documentation]
-| | ... | [Cfg] DUT runs L2BD switching config.
-| | ... | Each DUT uses ${phy_cores} physical core(s) for worker threads.
-| | ... | [Ver] Measure NDR and PDR values using MLRsearch algorithm.\
-| | ...
-| | ... | *Arguments:*
-| | ... | - frame_size - Framesize in Bytes in integer or string (IMIX_v4_1).
-| | ... | Type: integer, string
-| | ... | - phy_cores - Number of physical cores. Type: integer
-| | ... | - rxq - Number of RX queues, default value: ${None}. Type: integer
-| | ...
-| | [Arguments] | ${frame_size} | ${phy_cores} | ${rxq}=${None}
-| | ...
-| | Set Test Variable | \${frame_size}
-| | ...
-| | ${dut1_vm_refs}= | Create Dictionary
-| | ${dut2_vm_refs}= | Create Dictionary
-| | Set Test Variable | ${dut1_vm_refs}
-| | Set Test Variable | ${dut2_vm_refs}
-| | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
-| | And Add PCI devices to all DUTs
-| | Set Max Rate And Jumbo And Handle Multi Seg
-| | And Apply startup configuration on all VPP DUTs
-| | When Initialize L2 bridge domains with Vhost-User | nf_nodes=${2}
-| | And Configure guest VMs with dpdk-testpmd connected via vhost-user
-| | ... | vm_count=${2} | jumbo=${jumbo} | perf_qemu_qsz=${1024}
-| | ... | use_tuned_cfs=${False}
-| | Then Find NDR and PDR intervals using optimized search
-
-*** Test Cases ***
-| tc01-64B-1c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 64B | 1C
-| | frame_size=${64} | phy_cores=${1}
-
-| tc02-64B-2c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 64B | 2C
-| | frame_size=${64} | phy_cores=${2}
-
-| tc03-64B-4c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 64B | 4C
-| | frame_size=${64} | phy_cores=${4}
-
-| tc04-1518B-1c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 1518B | 1C
-| | frame_size=${1518} | phy_cores=${1}
-
-| tc05-1518B-2c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 1518B | 2C
-| | frame_size=${1518} | phy_cores=${2}
-
-| tc06-1518B-4c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 1518B | 4C
-| | frame_size=${1518} | phy_cores=${4}
-
-| tc07-9000B-1c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 9000B | 1C
-| | frame_size=${9000} | phy_cores=${1}
-
-| tc08-9000B-2c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 9000B | 2C
-| | frame_size=${9000} | phy_cores=${2}
-
-| tc09-9000B-4c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 9000B | 4C
-| | frame_size=${9000} | phy_cores=${4}
-
-| tc10-IMIX-1c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | IMIX | 1C
-| | frame_size=IMIX_v4_1 | phy_cores=${1}
-
-| tc11-IMIX-2c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | IMIX | 2C
-| | frame_size=IMIX_v4_1 | phy_cores=${2}
-
-| tc12-IMIX-4c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | IMIX | 4C
-| | frame_size=IMIX_v4_1 | phy_cores=${4}
diff --git a/tests/vpp/perf/vm_vhost/10ge2p1x710-eth-l2xcbase-eth-2vhostvr1024-1vm-ndrpdr.robot b/tests/vpp/perf/vm_vhost/10ge2p1x710-eth-l2xcbase-eth-2vhostvr1024-1vm-ndrpdr.robot
index 065e323380..1a01032153 100644
--- a/tests/vpp/perf/vm_vhost/10ge2p1x710-eth-l2xcbase-eth-2vhostvr1024-1vm-ndrpdr.robot
+++ b/tests/vpp/perf/vm_vhost/10ge2p1x710-eth-l2xcbase-eth-2vhostvr1024-1vm-ndrpdr.robot
@@ -22,9 +22,7 @@
 | Suite Teardown | Tear down 3-node performance topology
 | ...
 | Test Setup | Set up performance test
-| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
-| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
-| ... | dut2_node=${dut2} | dut2_vm_refs=${dut2_vm_refs}
+| Test Teardown | Tear down performance test with vhost
 | ...
 | Test Template | Local Template
 | ...
@@ -34,12 +32,10 @@
 | ... | with single links between nodes.
 | ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for L2 switching of IPv4.
 | ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with L2 cross-
-| ... | connect. Qemu Guest is connected to VPP via vhost-user interfaces.
-| ... | Guest is running DPDK testpmd interconnecting vhost-user interfaces
-| ... | using 5 cores pinned to cpus 5-9 and 2048M memory. Testpmd is using
-| ... | socket-mem=1024M (512x2M hugepages), 5 cores (1 main core and 4 cores
-| ... | dedicated for io), forwarding mode is set to io, rxd/txd=1024,
-| ... | burst=64. DUT1, DUT2 are tested with ${nic_name}.\
+| ... | connect. Qemu VNFs are \
+| ... | connected to VPP via vhost-user interfaces. Guest is running VPP l2xc \
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1/DUT2 is \
+| ... | tested with ${nic_name}.
 | ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
 | ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
 | ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
@@ -50,10 +46,15 @@
 | ... | flow-group) with all packets containing Ethernet header, IPv4 header
 | ... | with IP protocol=61 and static payload. MAC addresses are matching MAC
 | ... | addresses of the TG node interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544.
 
 *** Variables ***
 | ${nic_name}= | Intel-X710
 | ${overhead}= | ${0}
+| ${nf_dtcr}= | ${1}
+| ${nf_dtc}= | ${1}
+| ${nf_chains}= | ${1}
+| ${nf_nodes}= | ${1}
 # Traffic profile:
 | ${traffic_profile}= | trex-sl-3n-ethip4-ip4src254
 
@@ -74,18 +75,14 @@
 | | ...
 | | Set Test Variable | \${frame_size}
 | | ...
-| | ${dut1_vm_refs}= | Create Dictionary
-| | ${dut2_vm_refs}= | Create Dictionary
-| | Set Test Variable | ${dut1_vm_refs}
-| | Set Test Variable | ${dut2_vm_refs}
 | | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
 | | And Add PCI devices to all DUTs
 | | Set Max Rate And Jumbo And Handle Multi Seg
 | | And Apply startup configuration on all VPP DUTs
-| | When Initialize L2 xconnect with Vhost-User | vm_count=${1}
-| | And Configure guest VMs with dpdk-testpmd connected via vhost-user
-| | ... | vm_count=${1} | jumbo=${jumbo} | perf_qemu_qsz=${1024}
-| | ... | use_tuned_cfs=${False}
+| | When Initialize L2 xconnect with Vhost-User | 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=${False} | auto_scale=${True} | vnf=vpp_chain_l2xc
 | | Then Find NDR and PDR intervals using optimized search
 
 *** Test Cases ***
diff --git a/tests/vpp/perf/vm_vhost/10ge2p1x710-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr.robot b/tests/vpp/perf/vm_vhost/10ge2p1x710-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr.robot
deleted file mode 100644
index 29249e34f4..0000000000
--- a/tests/vpp/perf/vm_vhost/10ge2p1x710-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr.robot
+++ /dev/null
@@ -1,138 +0,0 @@
-# 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/performance/performance_setup.robot
-| ...
-| Force Tags | 3_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | NDRPDR
-| ... | NIC_Intel-X710 | ETH | L2XCFWD | BASE | VHOST | 2VM | VHOST_1024
-| ...
-| Suite Setup | Set up 3-node performance topology with DUT's NIC model
-| ... | L2 | ${nic_name}
-| Suite Teardown | Tear down 3-node performance topology
-| ...
-| Test Setup | Set up performance test
-| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
-| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
-| ... | dut2_node=${dut2} | dut2_vm_refs=${dut2_vm_refs}
-| ...
-| Test Template | Local Template
-| ...
-| Documentation | *RFC2544: Pkt throughput L2XC test cases with vhost*
-| ...
-| ... | *[Top] Network Topologies:* TG-DUT1-DUT2-TG 3-node circular topology
-| ... | with single links between nodes.
-| ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for L2 switching of IPv4.
-| ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with L2 cross-
-| ... | connects. Qemu Guests are connected to VPP via vhost-user interfaces.
-| ... | Guests are running DPDK testpmd interconnecting vhost-user interfaces
-| ... | using 5 cores pinned to cpus 6-10 and 11-15 and 2048M memory. Testpmd is
-| ... | using socket-mem=1024M (512x2M hugepages), 5 cores (1 main core and 4
-| ... | cores dedicated for io), forwarding mode is set to io, rxd/txd=1024,
-| ... | burst=64. DUT1, DUT2 are tested with ${nic_name}.\
-| ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
-| ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
-| ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
-| ... | of packets transmitted. NDR and PDR are discovered for different\
-| ... | Ethernet L2 frame sizes using MLRsearch library.\
-| ... | Test packets are generated by TG on links to DUTs. TG traffic profile
-| ... | contains two L3 flow-groups (flow-group per direction, 254 flows per
-| ... | flow-group) with all packets containing Ethernet header, IPv4 header
-| ... | with IP protocol=61 and static payload. MAC addresses are matching MAC
-| ... | addresses of the TG node interfaces.
-
-*** Variables ***
-| ${nic_name}= | Intel-X710
-| ${overhead}= | ${0}
-# Traffic profile:
-| ${traffic_profile}= | trex-sl-3n-ethip4-ip4src254
-
-*** Keywords ***
-| Local Template
-| | [Documentation]
-| | ... | [Cfg] DUT runs L2XC switching config.
-| | ... | Each DUT uses ${phy_cores} physical core(s) for worker threads.
-| | ... | [Ver] Measure NDR and PDR values using MLRsearch algorithm.\
-| | ...
-| | ... | *Arguments:*
-| | ... | - frame_size - Framesize in Bytes in integer or string (IMIX_v4_1).
-| | ... | Type: integer, string
-| | ... | - phy_cores - Number of physical cores. Type: integer
-| | ... | - rxq - Number of RX queues, default value: ${None}. Type: integer
-| | ...
-| | [Arguments] | ${frame_size} | ${phy_cores} | ${rxq}=${None}
-| | ...
-| | Set Test Variable | \${frame_size}
-| | ...
-| | ${dut1_vm_refs}= | Create Dictionary
-| | ${dut2_vm_refs}= | Create Dictionary
-| | Set Test Variable | ${dut1_vm_refs}
-| | Set Test Variable | ${dut2_vm_refs}
-| | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
-| | And Add PCI devices to all DUTs
-| | Set Max Rate And Jumbo And Handle Multi Seg
-| | And Apply startup configuration on all VPP DUTs
-| | When Initialize L2 xconnect with Vhost-User | vm_count=${2}
-| | And Configure guest VMs with dpdk-testpmd connected via vhost-user
-| | ... | vm_count=${2} | jumbo=${jumbo} | perf_qemu_qsz=${1024}
-| | ... | use_tuned_cfs=${False}
-| | Then Find NDR and PDR intervals using optimized search
-
-*** Test Cases ***
-| tc01-64B-1c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 64B | 1C
-| | frame_size=${64} | phy_cores=${1}
-
-| tc02-64B-2c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 64B | 2C
-| | frame_size=${64} | phy_cores=${2}
-
-| tc03-64B-4c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 64B | 4C
-| | frame_size=${64} | phy_cores=${4}
-
-| tc04-1518B-1c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 1518B | 1C
-| | frame_size=${1518} | phy_cores=${1}
-
-| tc05-1518B-2c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 1518B | 2C
-| | frame_size=${1518} | phy_cores=${2}
-
-| tc06-1518B-4c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 1518B | 4C
-| | frame_size=${1518} | phy_cores=${4}
-
-| tc07-9000B-1c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 9000B | 1C
-| | frame_size=${9000} | phy_cores=${1}
-
-| tc08-9000B-2c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 9000B | 2C
-| | frame_size=${9000} | phy_cores=${2}
-
-| tc09-9000B-4c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 9000B | 4C
-| | frame_size=${9000} | phy_cores=${4}
-
-| tc10-IMIX-1c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | IMIX | 1C
-| | frame_size=IMIX_v4_1 | phy_cores=${1}
-
-| tc11-IMIX-2c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | IMIX | 2C
-| | frame_size=IMIX_v4_1 | phy_cores=${2}
-
-| tc12-IMIX-4c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | IMIX | 4C
-| | frame_size=IMIX_v4_1 | phy_cores=${4}
diff --git a/tests/vpp/perf/vm_vhost/10ge2p1x710-ethip4-ip4base-eth-2vhostvr1024-1vm-ndrpdr.robot b/tests/vpp/perf/vm_vhost/10ge2p1x710-ethip4-ip4base-eth-2vhostvr1024-1vm-ndrpdr.robot
index d76b2897de..b3f36830ae 100644
--- a/tests/vpp/perf/vm_vhost/10ge2p1x710-ethip4-ip4base-eth-2vhostvr1024-1vm-ndrpdr.robot
+++ b/tests/vpp/perf/vm_vhost/10ge2p1x710-ethip4-ip4base-eth-2vhostvr1024-1vm-ndrpdr.robot
@@ -22,9 +22,7 @@
 | Suite Teardown | Tear down 3-node performance topology
 | ...
 | Test Setup | Set up performance test
-| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
-| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
-| ... | dut2_node=${dut2} | dut2_vm_refs=${dut2_vm_refs}
+| Test Teardown | Tear down performance test with vhost
 | ...
 | Test Template | Local Template
 | ...
@@ -34,13 +32,10 @@
 | ... | with single links between nodes.
 | ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for IPv4 routing.
 | ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with IPv4
-| ... | routing and two static IPv4 /24 route entries. Qemu Guest is connected
-| ... | to VPP via vhost-user interfaces. Guest is running DPDK testpmd
-| ... | interconnecting vhost-user interfaces using 5 cores pinned to cpus 5-9
-| ... | and 2048M memory. Testpmd is using socket-mem=1024M (512x2M hugepages),
-| ... | 5 cores (1 main core and 4 cores dedicated for io), forwarding mode is
-| ... | set to mac, rxd/txd=1024, burst=64. DUT1, DUT2 are tested
-| ... | with ${nic_name}.\
+| ... | routing and two static IPv4 /24 route entries. Qemu VNFs are \
+| ... | connected to VPP via vhost-user interfaces. Guest is running VPP ip4 \
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1/DUT2 is \
+| ... | tested with ${nic_name}.
 | ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
 | ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
 | ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
@@ -51,10 +46,15 @@
 | ... | flow-group) with all packets containing Ethernet header, IPv4 header
 | ... | with IP protocol=61 and static payload. MAC addresses are matching MAC
 | ... | addresses of the TG node interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544.
 
 *** Variables ***
 | ${nic_name}= | Intel-X710
 | ${overhead}= | ${0}
+| ${nf_dtcr}= | ${1}
+| ${nf_dtc}= | ${1}
+| ${nf_chains}= | ${1}
+| ${nf_nodes}= | ${1}
 # Traffic profile:
 | ${traffic_profile}= | trex-sl-3n-ethip4-ip4src253
 
@@ -75,19 +75,15 @@
 | | ...
 | | Set Test Variable | \${frame_size}
 | | ...
-| | ${dut1_vm_refs}= | Create Dictionary
-| | ${dut2_vm_refs}= | Create Dictionary
-| | Set Test Variable | ${dut1_vm_refs}
-| | Set Test Variable | ${dut2_vm_refs}
 | | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
 | | And Add PCI devices to all DUTs
 | | Set Max Rate And Jumbo And Handle Multi Seg
 | | And Apply startup configuration on all VPP DUTs
 | | When Initialize IPv4 forwarding with vhost in 3-node circular topology
-| | ... | vm_count=${1}
-| | And Configure guest VMs with dpdk-testpmd-mac connected via vhost-user
-| | ... | vm_count=${1} | jumbo=${jumbo} | perf_qemu_qsz=${1024}
-| | ... | use_tuned_cfs=${False}
+| | ... | 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=${False} | auto_scale=${True} | vnf=vpp_chain_ip4_noarp
 | | Then Find NDR and PDR intervals using optimized search
 
 *** Test Cases ***
diff --git a/tests/vpp/perf/vm_vhost/10ge2p1x710-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr.robot b/tests/vpp/perf/vm_vhost/10ge2p1x710-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr.robot
deleted file mode 100644
index ea56bd15a1..0000000000
--- a/tests/vpp/perf/vm_vhost/10ge2p1x710-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr.robot
+++ /dev/null
@@ -1,140 +0,0 @@
-# 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/performance/performance_setup.robot
-| ...
-| Force Tags | 3_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | NDRPDR
-| ... | NIC_Intel-X710 | ETH | IP4FWD | BASE | VHOST | 2VM | VHOST_1024
-| ...
-| Suite Setup | Set up 3-node performance topology with DUT's NIC model
-| ... | L3 | ${nic_name}
-| Suite Teardown | Tear down 3-node performance topology
-| ...
-| Test Setup | Set up performance test
-| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
-| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
-| ... | dut2_node=${dut2} | dut2_vm_refs=${dut2_vm_refs}
-| ...
-| Test Template | Local Template
-| ...
-| Documentation | *RFC2544: Pkt throughput IPv4 test cases with vhost*
-| ...
-| ... | *[Top] Network Topologies:* TG-DUT1-DUT2-TG 3-node circular topology
-| ... | with single links between nodes.
-| ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for IPv4 routing.
-| ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with IPv4
-| ... | routing and two static IPv4 /24 route entries. Qemu Guests are connected
-| ... | to VPP via vhost-user interfaces. Guests are running DPDK testpmd
-| ... | interconnectingvhost-user interfaces using 5 cores pinned to cpus 6-10
-| ... | and 11-15 and 2048M memory. Testpmd is using socket-mem=1024M (512x2M
-| ... | hugepages), 5 cores (1 main core and 4 cores dedicated for io),
-| ... | forwarding mode is set to io, rxd/txd=1024, burst=64. DUT1, DUT2 are
-| ... | tested with ${nic_name}.\
-| ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
-| ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
-| ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
-| ... | of packets transmitted. NDR and PDR are discovered for different\
-| ... | Ethernet L2 frame sizes using MLRsearch library.\
-| ... | Test packets are generated by TG on links to DUTs. TG traffic profile
-| ... | contains two L3 flow-groups (flow-group per direction, 253 flows per
-| ... | flow-group) with all packets containing Ethernet header, IPv4 header
-| ... | with IP protocol=61 and static payload. MAC addresses are matching MAC
-| ... | addresses of the TG node interfaces.
-
-*** Variables ***
-| ${nic_name}= | Intel-X710
-| ${overhead}= | ${0}
-# Traffic profile:
-| ${traffic_profile}= | trex-sl-3n-ethip4-ip4src253
-
-*** Keywords ***
-| Local Template
-| | [Documentation]
-| | ... | [Cfg] DUT runs IPv4 routing config.
-| | ... | Each DUT uses ${phy_cores} physical core(s) for worker threads.
-| | ... | [Ver] Measure NDR and PDR values using MLRsearch algorithm.\
-| | ...
-| | ... | *Arguments:*
-| | ... | - frame_size - Framesize in Bytes in integer or string (IMIX_v4_1).
-| | ... | Type: integer, string
-| | ... | - phy_cores - Number of physical cores. Type: integer
-| | ... | - rxq - Number of RX queues, default value: ${None}. Type: integer
-| | ...
-| | [Arguments] | ${frame_size} | ${phy_cores} | ${rxq}=${None}
-| | ...
-| | Set Test Variable | \${frame_size}
-| | ...
-| | ${dut1_vm_refs}= | Create Dictionary
-| | ${dut2_vm_refs}= | Create Dictionary
-| | Set Test Variable | ${dut1_vm_refs}
-| | Set Test Variable | ${dut2_vm_refs}
-| | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
-| | And Add PCI devices to all DUTs
-| | Set Max Rate And Jumbo And Handle Multi Seg
-| | And Apply startup configuration on all VPP DUTs
-| | When Initialize IPv4 forwarding with vhost in 3-node circular topology
-| | ... | vm_count=${2}
-| | And Configure guest VMs with dpdk-testpmd-mac connected via vhost-user
-| | ... | vm_count=${2} | jumbo=${jumbo} | perf_qemu_qsz=${1024}
-| | ... | use_tuned_cfs=${False}
-| | Then Find NDR and PDR intervals using optimized search
-
-*** Test Cases ***
-| tc01-64B-1c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 64B | 1C
-| | frame_size=${64} | phy_cores=${1}
-
-| tc02-64B-2c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 64B | 2C
-| | frame_size=${64} | phy_cores=${2}
-
-| tc03-64B-4c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 64B | 4C
-| | frame_size=${64} | phy_cores=${4}
-
-| tc04-1518B-1c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 1518B | 1C
-| | frame_size=${1518} | phy_cores=${1}
-
-| tc05-1518B-2c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 1518B | 2C
-| | frame_size=${1518} | phy_cores=${2}
-
-| tc06-1518B-4c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 1518B | 4C
-| | frame_size=${1518} | phy_cores=${4}
-
-| tc07-9000B-1c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 9000B | 1C
-| | frame_size=${9000} | phy_cores=${1}
-
-| tc08-9000B-2c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 9000B | 2C
-| | frame_size=${9000} | phy_cores=${2}
-
-| tc09-9000B-4c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 9000B | 4C
-| | frame_size=${9000} | phy_cores=${4}
-
-| tc10-IMIX-1c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | IMIX | 1C
-| | frame_size=IMIX_v4_1 | phy_cores=${1}
-
-| tc11-IMIX-2c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | IMIX | 2C
-| | frame_size=IMIX_v4_1 | phy_cores=${2}
-
-| tc12-IMIX-4c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | IMIX | 4C
-| | frame_size=IMIX_v4_1 | phy_cores=${4}
diff --git a/tests/vpp/perf/vm_vhost/10ge2p1x710-ethip4vxlan-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot b/tests/vpp/perf/vm_vhost/10ge2p1x710-ethip4vxlan-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot
index acff0e6337..501917e273 100644
--- a/tests/vpp/perf/vm_vhost/10ge2p1x710-ethip4vxlan-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot
+++ b/tests/vpp/perf/vm_vhost/10ge2p1x710-ethip4vxlan-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot
@@ -23,9 +23,7 @@
 | Suite Teardown | Tear down 3-node performance topology
 | ...
 | Test Setup | Set up performance test
-| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
-| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
-| ... | dut2_node=${dut2} | dut2_vm_refs=${dut2_vm_refs}
+| Test Teardown | Tear down performance test with vhost
 | ...
 | Test Template | Local Template
 | ...
@@ -37,12 +35,10 @@
 | ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for L2 switching of IPv4.
 | ... | Eth-IPv4-VXLAN-Eth-IPv4 is applied on link between DUT1 and DUT2.
 | ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with L2 bridge-
-| ... | domain and MAC learning enabled. Qemu Guest is connected to VPP via
-| ... | vhost-user interfaces. Guest is running DPDK testpmd interconnecting
-| ... | vhost-user interfaces using 5 cores pinned to cpus 5-9 and 2048M
-| ... | memory. Testpmd is using socket-mem=1024M (512x2M hugepages), 5 cores
-| ... | (1 main core and 4 cores dedicated for io), forwarding mode is set to
-| ... | io, rxd/txd=1024, burst=64. DUT1, DUT2 are tested with ${nic_name}.\
+| ... | domain and MAC learning enabled. Qemu VNFs are \
+| ... | connected to VPP via vhost-user interfaces. Guest is running VPP l2xc \
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1/DUT2 is \
+| ... | tested with ${nic_name}.
 | ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
 | ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
 | ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
@@ -60,6 +56,10 @@
 | ${overhead}= | ${50}
 | ${bd_id1}= | 1
 | ${bd_id2}= | 2
+| ${nf_dtcr}= | ${1}
+| ${nf_dtc}= | ${1}
+| ${nf_chains}= | ${1}
+| ${nf_nodes}= | ${1}
 # Traffic profile:
 | ${traffic_profile}= | trex-sl-3n-ethip4-ip4src254
 
@@ -80,19 +80,15 @@
 | | ...
 | | Set Test Variable | \${frame_size}
 | | ...
-| | ${dut1_vm_refs}= | Create Dictionary
-| | ${dut2_vm_refs}= | Create Dictionary
-| | Set Test Variable | ${dut1_vm_refs}
-| | Set Test Variable | ${dut2_vm_refs}
 | | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
 | | And Add PCI devices to all DUTs
 | | Set Max Rate And Jumbo And Handle Multi Seg
 | | And Apply startup configuration on all VPP DUTs
 | | When Initialize L2 bridge domains with Vhost-User and VXLANoIPv4 in 3-node circular topology
 | | ... | ${bd_id1} | ${bd_id2}
-| | And Configure guest VMs with dpdk-testpmd connected via vhost-user
-| | ... | vm_count=${1} | jumbo=${jumbo} | perf_qemu_qsz=${1024}
-| | ... | use_tuned_cfs=${False}
+| | And Configure chains of NFs connected via vhost-user
+| | ... | nf_chains=${nf_chains} | nf_nodes=${nf_chains} | jumbo=${jumbo}
+| | ... | use_tuned_cfs=${False} | auto_scale=${True} | vnf=vpp_chain_l2xc
 | | Then Find NDR and PDR intervals using optimized search
 
 *** Test Cases ***
diff --git a/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-dot1q-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot b/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-dot1q-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot
index e24d9f017e..43d14cdfde 100644
--- a/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-dot1q-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot
+++ b/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-dot1q-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot
@@ -23,8 +23,7 @@
 | Suite Teardown | Tear down 2-node performance topology
 | ...
 | Test Setup | Set up performance test
-| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
-| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
+| Test Teardown | Tear down performance test with vhost
 | ...
 | Test Template | Local Template
 | ...
@@ -36,21 +35,20 @@
 | ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for L2 switching of IPv4. IEEE\
 | ... | 802.1Q tagging is applied on link between DUT1-if2 and TG-if2.
 | ... | *[Cfg] DUT configuration:* DUT1 is configured with L2 bridge-domain and\
-| ... | MAC learning enabled. Qemu Guest is connected to VPP via vhost-user\
-| ... | interfaces. Guest is running DPDK testpmd interconnecting vhost-user\
-| ... | interfaces, forwarding mode is set to io, rxd/txd=1024. DUT1 is tested\
-| ... | with ${nic_name}.\
+| ... | MAC learning enabled. Qemu VNFs are connected to VPP via\
+| ... | vhost-user interfaces. Guest is running VPP l2xc interconnecting \
+| ... | vhost-user interfaces, rxd/txd=1024. DUT1 is tested with ${nic_name}.
 | ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
 | ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
 | ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
 | ... | of packets transmitted. NDR and PDR are discovered for different\
 | ... | Ethernet L2 frame sizes using MLRsearch library.\
-| ... | Test packets are\
-| ... | generated by TG on links to DUTs. TG traffic profile contains two L3\
-| ... | flow-groups (flow-group per direction, 254 flows per flow-group) with\
-| ... | all packets containing Ethernet header, IPv4 header with IP protocol=61\
-| ... | and static payload. MAC addresses are matching MAC addresses of the TG\
-| ... | node interfaces.
+| ... | Test packets are generated by TG on\
+| ... | links to DUTs. TG traffic profile contains two L3 flow-groups\
+| ... | (flow-group per direction, 254 flows per flow-group) with all packets\
+| ... | containing Ethernet header, IPv4 header with IP protocol=61 and static\
+| ... | payload. MAC addresses are matching MAC addresses of NFs nodes\
+| ... | interfaces.
 | ... | *[Ref] Applicable standard specifications:* RFC2544.
 
 *** Variables ***
@@ -60,6 +58,10 @@
 | ${tag_rewrite}= | pop-1
 | ${bd_id1}= | 1
 | ${bd_id2}= | 2
+| ${nf_dtcr}= | ${1}
+| ${nf_dtc}= | ${1}
+| ${nf_chains}= | ${1}
+| ${nf_nodes}= | ${1}
 # Traffic profile:
 | ${traffic_profile}= | trex-sl-2n-dot1qip4asym-ip4src254
 
@@ -80,16 +82,15 @@
 | | ...
 | | Set Test Variable | \${frame_size}
 | | ...
-| | ${dut1_vm_refs}= | Create Dictionary
-| | Set Test Variable | ${dut1_vm_refs}
 | | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
 | | And Add PCI devices to all DUTs
 | | Set Max Rate And Jumbo And Handle Multi Seg
 | | And Apply startup configuration on all VPP DUTs
 | | When Initialize L2 bridge domains with Vhost-User and VLAN in circular topology
 | | ... | ${bd_id1} | ${bd_id2} | ${subid} | ${tag_rewrite}
-| | And Configure guest VMs with dpdk-testpmd connected via vhost-user
-| | ... | jumbo=${jumbo} | perf_qemu_qsz=${1024} | use_tuned_cfs=${False}
+| | 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=${True} | vnf=vpp_chain_l2xc
 | | Then Find NDR and PDR intervals using optimized search
 
 *** Test Cases ***
diff --git a/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot b/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot
index 3c4bbe0041..aaecbb665a 100644
--- a/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot
+++ b/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-eth-l2bdbasemaclrn-eth-2vhostvr1024-1vm-ndrpdr.robot
@@ -22,8 +22,7 @@
 | Suite Teardown | Tear down 2-node performance topology
 | ...
 | Test Setup | Set up performance test
-| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
-| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
+| Test Teardown | Tear down performance test with vhost
 | ...
 | Test Template | Local Template
 | ...
@@ -33,10 +32,10 @@
 | ... | with single links between nodes.
 | ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for L2 switching of IPv4.
 | ... | *[Cfg] DUT configuration:* DUT1 is configured with L2 bridge-
-| ... | domain and MAC learning enabled. Qemu Guest is connected to VPP via
-| ... | vhost-user interfaces. Guest is running DPDK testpmd
-| ... | interconnecting vhost-user interfaces, forwarding mode is
-| ... | set to io, rxd/txd=256. DUT1 is tested with ${nic_name}.\
+| ... | domain and MAC learning enabled. Qemu VNFs are connected \
+| ... | to VPP via vhost-user interfaces. Guest is running VPP l2xc \
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1 is tested \
+| ... | with ${nic_name}.
 | ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
 | ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
 | ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
@@ -53,6 +52,10 @@
 *** Variables ***
 | ${nic_name}= | Intel-X710
 | ${overhead}= | ${0}
+| ${nf_dtcr}= | ${1}
+| ${nf_dtc}= | ${1}
+| ${nf_chains}= | ${1}
+| ${nf_nodes}= | ${1}
 # Traffic profile:
 | ${traffic_profile}= | trex-sl-2n-ethip4-ip4src254
 
@@ -73,16 +76,14 @@
 | | ...
 | | Set Test Variable | \${frame_size}
 | | ...
-| | ${dut1_vm_refs}= | Create Dictionary
-| | Set Test Variable | ${dut1_vm_refs}
 | | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
 | | And Add PCI devices to all DUTs
 | | Set Max Rate And Jumbo And Handle Multi Seg
 | | And Apply startup configuration on all VPP DUTs
-| | When Initialize L2 bridge domains with Vhost-User | nf_nodes=${1}
-| | And Configure guest VMs with dpdk-testpmd connected via vhost-user
-| | ... | vm_count=${1} | jumbo=${jumbo} | perf_qemu_qsz=${1024}
-| | ... | use_tuned_cfs=${False}
+| | When Initialize L2 bridge domains with Vhost-User | 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=${False} | auto_scale=${True} | vnf=vpp_chain_l2xc
 | | Then Find NDR and PDR intervals using optimized search
 
 *** Test Cases ***
diff --git a/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr.robot b/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr.robot
deleted file mode 100644
index 365bcbacb5..0000000000
--- a/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr.robot
+++ /dev/null
@@ -1,133 +0,0 @@
-# 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/performance/performance_setup.robot
-| ...
-| Force Tags | 2_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | NDRPDR
-| ... | NIC_Intel-X710 | ETH | L2BDMACLRN | BASE | VHOST | 2VM | VHOST_1024
-| ...
-| Suite Setup | Set up 2-node performance topology with DUT's NIC model
-| ... | L2 | ${nic_name}
-| Suite Teardown | Tear down 2-node performance topology
-| ...
-| Test Setup | Set up performance test
-| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
-| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
-| ...
-| Test Template | Local Template
-| ...
-| Documentation | *RFC2544: Pkt throughput L2BD test cases with vhost*
-| ...
-| ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology
-| ... | with single links between nodes.
-| ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for L2 switching of IPv4.
-| ... | *[Cfg] DUT configuration:* DUT1 is configured with L2 bridge-
-| ... | domain and MAC learning enabled. Qemu Guest is connected to VPP via
-| ... | vhost-user interfaces. Guest is running DPDK testpmd
-| ... | interconnecting vhost-user interfaces, forwarding mode is
-| ... | set to io, rxd/txd=256. DUT1 is tested with ${nic_name}.\
-| ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
-| ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
-| ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
-| ... | of packets transmitted. NDR and PDR are discovered for different\
-| ... | Ethernet L2 frame sizes using MLRsearch library.\
-| ... | Test packets are generated by TG on links to DUTs. TG traffic profile
-| ... | contains two L3 flow-groups (flow-group per direction, 254 flows per
-| ... | flow-group) with all packets containing Ethernet header, IPv4 header
-| ... | with IP protocol=61 and static payload. MAC addresses are matching MAC
-| ... | addresses of the TG node interfaces.
-
-*** Variables ***
-| ${nic_name}= | Intel-X710
-| ${overhead}= | ${0}
-# Traffic profile:
-| ${traffic_profile}= | trex-sl-2n-ethip4-ip4src254
-
-*** Keywords ***
-| Local Template
-| | [Documentation]
-| | ... | [Cfg] DUT runs L2BD switching config.
-| | ... | Each DUT uses ${phy_cores} physical core(s) for worker threads.
-| | ... | [Ver] Measure NDR and PDR values using MLRsearch algorithm.\
-| | ...
-| | ... | *Arguments:*
-| | ... | - frame_size - Framesize in Bytes in integer or string (IMIX_v4_1).
-| | ... | Type: integer, string
-| | ... | - phy_cores - Number of physical cores. Type: integer
-| | ... | - rxq - Number of RX queues, default value: ${None}. Type: integer
-| | ...
-| | [Arguments] | ${frame_size} | ${phy_cores} | ${rxq}=${None}
-| | ...
-| | Set Test Variable | \${frame_size}
-| | ...
-| | ${dut1_vm_refs}= | Create Dictionary
-| | Set Test Variable | ${dut1_vm_refs}
-| | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
-| | And Add PCI devices to all DUTs
-| | Set Max Rate And Jumbo And Handle Multi Seg
-| | And Apply startup configuration on all VPP DUTs
-| | When Initialize L2 bridge domains with Vhost-User | nf_nodes=${2}
-| | And Configure guest VMs with dpdk-testpmd connected via vhost-user
-| | ... | vm_count=${2} | jumbo=${jumbo} | perf_qemu_qsz=${1024}
-| | ... | use_tuned_cfs=${False}
-| | Then Find NDR and PDR intervals using optimized search
-
-*** Test Cases ***
-| tc01-64B-1c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 64B | 1C
-| | frame_size=${64} | phy_cores=${1}
-
-| tc02-64B-2c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 64B | 2C
-| | frame_size=${64} | phy_cores=${2}
-
-| tc03-64B-4c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 64B | 4C
-| | frame_size=${64} | phy_cores=${4}
-
-| tc04-1518B-1c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 1518B | 1C
-| | frame_size=${1518} | phy_cores=${1}
-
-| tc05-1518B-2c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 1518B | 2C
-| | frame_size=${1518} | phy_cores=${2}
-
-| tc06-1518B-4c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 1518B | 4C
-| | frame_size=${1518} | phy_cores=${4}
-
-| tc07-9000B-1c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 9000B | 1C
-| | frame_size=${9000} | phy_cores=${1}
-
-| tc08-9000B-2c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 9000B | 2C
-| | frame_size=${9000} | phy_cores=${2}
-
-| tc09-9000B-4c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 9000B | 4C
-| | frame_size=${9000} | phy_cores=${4}
-
-| tc10-IMIX-1c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | IMIX | 1C
-| | frame_size=IMIX_v4_1 | phy_cores=${1}
-
-| tc11-IMIX-2c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | IMIX | 2C
-| | frame_size=IMIX_v4_1 | phy_cores=${2}
-
-| tc12-IMIX-4c-eth-l2bdbasemaclrn-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | IMIX | 4C
-| | frame_size=IMIX_v4_1 | phy_cores=${4}
diff --git a/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-eth-l2xcbase-eth-2vhostvr1024-1vm-ndrpdr.robot b/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-eth-l2xcbase-eth-2vhostvr1024-1vm-ndrpdr.robot
index af0632e136..e855acad8c 100644
--- a/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-eth-l2xcbase-eth-2vhostvr1024-1vm-ndrpdr.robot
+++ b/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-eth-l2xcbase-eth-2vhostvr1024-1vm-ndrpdr.robot
@@ -22,8 +22,7 @@
 | Suite Teardown | Tear down 2-node performance topology
 | ...
 | Test Setup | Set up performance test
-| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
-| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
+| Test Teardown | Tear down performance test with vhost
 | ...
 | Test Template | Local Template
 | ...
@@ -33,10 +32,10 @@
 | ... | with single links between nodes.
 | ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for L2 switching of IPv4.
 | ... | *[Cfg] DUT configuration:* DUT1 is configured with L2 cross-
-| ... | connect. Qemu Guest is connected to VPP via vhost-user interfaces.
-| ... | Guest is running DPDK testpmd interconnecting vhost-user interfaces,
-| ... | forwarding mode is set to io, rxd/txd=256. DUT1 is tested
-| ... | with ${nic_name}.\
+| ... | connect. Qemu VNFs are connected \
+| ... | to VPP via vhost-user interfaces. Guest is running VPP l2xc \
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1 is tested \
+| ... | with ${nic_name}.
 | ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
 | ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
 | ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
@@ -47,10 +46,15 @@
 | ... | flow-group) with all packets containing Ethernet header, IPv4 header
 | ... | with IP protocol=61 and static payload. MAC addresses are matching MAC
 | ... | addresses of the TG node interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544.
 
 *** Variables ***
 | ${nic_name}= | Intel-X710
 | ${overhead}= | ${0}
+| ${nf_dtcr}= | ${1}
+| ${nf_dtc}= | ${1}
+| ${nf_chains}= | ${1}
+| ${nf_nodes}= | ${1}
 # Traffic profile:
 | ${traffic_profile}= | trex-sl-2n-ethip4-ip4src254
 
@@ -71,16 +75,14 @@
 | | ...
 | | Set Test Variable | \${frame_size}
 | | ...
-| | ${dut1_vm_refs}= | Create Dictionary
-| | Set Test Variable | ${dut1_vm_refs}
 | | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
 | | And Add PCI devices to all DUTs
 | | Set Max Rate And Jumbo And Handle Multi Seg
 | | And Apply startup configuration on all VPP DUTs
-| | When Initialize L2 xconnect with Vhost-User | vm_count=${1}
-| | And Configure guest VMs with dpdk-testpmd connected via vhost-user
-| | ... | vm_count=${1} | jumbo=${jumbo} | perf_qemu_qsz=${1024}
-| | ... | use_tuned_cfs=${False}
+| | When Initialize L2 xconnect with Vhost-User | 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=${False} | auto_scale=${True} | vnf=vpp_chain_l2xc
 | | Then Find NDR and PDR intervals using optimized search
 
 *** Test Cases ***
diff --git a/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr.robot b/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr.robot
deleted file mode 100644
index 195b5d9c9b..0000000000
--- a/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr.robot
+++ /dev/null
@@ -1,133 +0,0 @@
-# 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/performance/performance_setup.robot
-| ...
-| Force Tags | 2_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | NDRPDR
-| ... | NIC_Intel-X710 | ETH | L2XCFWD | BASE | VHOST | 2VM | VHOST_1024
-| ...
-| Suite Setup | Set up 2-node performance topology with DUT's NIC model
-| ... | L2 | ${nic_name}
-| Suite Teardown | Tear down 2-node performance topology
-| ...
-| Test Setup | Set up performance test
-| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
-| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
-| ...
-| Test Template | Local Template
-| ...
-| Documentation | *RFC2544: Pkt throughput L2XC test cases with vhost*
-| ...
-| ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology
-| ... | with single links between nodes.
-| ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for L2 switching of IPv4.
-| ... | *[Cfg] DUT configuration:* DUT1 is configured with L2 cross-
-| ... | connect. Qemu Guest is connected to VPP via vhost-user interfaces.
-| ... | Guest is running DPDK testpmd interconnecting vhost-user interfaces,
-| ... | forwarding mode is set to io, rxd/txd=256. DUT1 is tested
-| ... | with ${nic_name}.\
-| ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
-| ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
-| ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
-| ... | of packets transmitted. NDR and PDR are discovered for different\
-| ... | Ethernet L2 frame sizes using MLRsearch library.\
-| ... | Test packets are generated by TG on links to DUTs. TG traffic profile
-| ... | contains two L3 flow-groups (flow-group per direction, 254 flows per
-| ... | flow-group) with all packets containing Ethernet header, IPv4 header
-| ... | with IP protocol=61 and static payload. MAC addresses are matching MAC
-| ... | addresses of the TG node interfaces.
-
-*** Variables ***
-| ${nic_name}= | Intel-X710
-| ${overhead}= | ${0}
-# Traffic profile:
-| ${traffic_profile}= | trex-sl-2n-ethip4-ip4src254
-
-*** Keywords ***
-| Local Template
-| | [Documentation]
-| | ... | [Cfg] DUT runs L2XC switching config.
-| | ... | Each DUT uses ${phy_cores} physical core(s) for worker threads.
-| | ... | [Ver] Measure NDR and PDR values using MLRsearch algorithm.\
-| | ...
-| | ... | *Arguments:*
-| | ... | - frame_size - Framesize in Bytes in integer or string (IMIX_v4_1).
-| | ... | Type: integer, string
-| | ... | - phy_cores - Number of physical cores. Type: integer
-| | ... | - rxq - Number of RX queues, default value: ${None}. Type: integer
-| | ...
-| | [Arguments] | ${frame_size} | ${phy_cores} | ${rxq}=${None}
-| | ...
-| | Set Test Variable | \${frame_size}
-| | ...
-| | ${dut1_vm_refs}= | Create Dictionary
-| | Set Test Variable | ${dut1_vm_refs}
-| | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
-| | And Add PCI devices to all DUTs
-| | Set Max Rate And Jumbo And Handle Multi Seg
-| | And Apply startup configuration on all VPP DUTs
-| | When Initialize L2 xconnect with Vhost-User | vm_count=${2}
-| | And Configure guest VMs with dpdk-testpmd connected via vhost-user
-| | ... | vm_count=${2} | jumbo=${jumbo} | perf_qemu_qsz=${1024}
-| | ... | use_tuned_cfs=${False}
-| | Then Find NDR and PDR intervals using optimized search
-
-*** Test Cases ***
-| tc01-64B-1c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 64B | 1C
-| | frame_size=${64} | phy_cores=${1}
-
-| tc02-64B-2c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 64B | 2C
-| | frame_size=${64} | phy_cores=${2}
-
-| tc03-64B-4c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 64B | 4C
-| | frame_size=${64} | phy_cores=${4}
-
-| tc04-1518B-1c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 1518B | 1C
-| | frame_size=${1518} | phy_cores=${1}
-
-| tc05-1518B-2c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 1518B | 2C
-| | frame_size=${1518} | phy_cores=${2}
-
-| tc06-1518B-4c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 1518B | 4C
-| | frame_size=${1518} | phy_cores=${4}
-
-| tc07-9000B-1c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 9000B | 1C
-| | frame_size=${9000} | phy_cores=${1}
-
-| tc08-9000B-2c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 9000B | 2C
-| | frame_size=${9000} | phy_cores=${2}
-
-| tc09-9000B-4c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 9000B | 4C
-| | frame_size=${9000} | phy_cores=${4}
-
-| tc10-IMIX-1c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | IMIX | 1C
-| | frame_size=IMIX_v4_1 | phy_cores=${1}
-
-| tc11-IMIX-2c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | IMIX | 2C
-| | frame_size=IMIX_v4_1 | phy_cores=${2}
-
-| tc12-IMIX-4c-eth-l2xcbase-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | IMIX | 4C
-| | frame_size=IMIX_v4_1 | phy_cores=${4}
diff --git a/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-ethip4-ip4base-eth-2vhostvr1024-1vm-ndrpdr.robot b/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-ethip4-ip4base-eth-2vhostvr1024-1vm-ndrpdr.robot
index 08516c8ff9..ab3350278f 100644
--- a/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-ethip4-ip4base-eth-2vhostvr1024-1vm-ndrpdr.robot
+++ b/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-ethip4-ip4base-eth-2vhostvr1024-1vm-ndrpdr.robot
@@ -22,8 +22,7 @@
 | Suite Teardown | Tear down 2-node performance topology
 | ...
 | Test Setup | Set up performance test
-| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
-| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
+| Test Teardown | Tear down performance test with vhost
 | ...
 | Test Template | Local Template
 | ...
@@ -33,10 +32,10 @@
 | ... | with single links between nodes.
 | ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for IPv4 routing.
 | ... | *[Cfg] DUT configuration:* DUT1 is configured with IPv4
-| ... | routing and two static IPv4 /24 route entries. Qemu Guest is connected
-| ... | to VPP via vhost-user interfaces. Guest is running DPDK testpmd
-| ... | interconnecting vhost-user interfaces, forwarding mode is
-| ... | set to mac, rxd/txd=1024. DUT1 is tested with ${nic_name}.\
+| ... | routing and two static IPv4 /24 route entries. Qemu VNFs are connected \
+| ... | to VPP via vhost-user interfaces. Guest is running VPP ip4 \
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1 is tested \
+| ... | with ${nic_name}.
 | ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
 | ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
 | ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
@@ -47,10 +46,15 @@
 | ... | flow-group) with all packets containing Ethernet header, IPv4 header
 | ... | with IP protocol=61 and static payload. MAC addresses are matching MAC
 | ... | addresses of the TG node interfaces.
+| ... | *[Ref] Applicable standard specifications:* RFC2544.
 
 *** Variables ***
 | ${nic_name}= | Intel-X710
 | ${overhead}= | ${0}
+| ${nf_dtcr}= | ${1}
+| ${nf_dtc}= | ${1}
+| ${nf_chains}= | ${1}
+| ${nf_nodes}= | ${1}
 # Traffic profile:
 | ${traffic_profile}= | trex-sl-2n-ethip4-ip4src253
 
@@ -71,17 +75,15 @@
 | | ...
 | | Set Test Variable | \${frame_size}
 | | ...
-| | ${dut1_vm_refs}= | Create Dictionary
-| | Set Test Variable | ${dut1_vm_refs}
 | | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
 | | And Add PCI devices to all DUTs
 | | Set Max Rate And Jumbo And Handle Multi Seg
 | | And Apply startup configuration on all VPP DUTs
 | | When Initialize IPv4 forwarding with vhost in 2-node circular topology
-| | ... | vm_count=${1}
-| | And Configure guest VMs with dpdk-testpmd-mac connected via vhost-user
-| | ... | vm_count=${1} | jumbo=${jumbo} | perf_qemu_qsz=${1024}
-| | ... | use_tuned_cfs=${False}
+| | ... | 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=${False} | auto_scale=${True} | vnf=vpp_chain_ip4_noarp
 | | Then Find NDR and PDR intervals using optimized search
 
 *** Test Cases ***
diff --git a/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr.robot b/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr.robot
deleted file mode 100644
index 24a040d219..0000000000
--- a/tests/vpp/perf/vm_vhost/2n1l-10ge2p1x710-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr.robot
+++ /dev/null
@@ -1,134 +0,0 @@
-# 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/performance/performance_setup.robot
-| ...
-| Force Tags | 2_NODE_SINGLE_LINK_TOPO | PERFTEST | HW_ENV | NDRPDR
-| ... | NIC_Intel-X710 | ETH | IP4FWD | BASE | VHOST | 2VM | VHOST_1024
-| ...
-| Suite Setup | Set up 2-node performance topology with DUT's NIC model
-| ... | L3 | ${nic_name}
-| Suite Teardown | Tear down 2-node performance topology
-| ...
-| Test Setup | Set up performance test
-| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd
-| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
-| ...
-| Test Template | Local Template
-| ...
-| Documentation | *RFC2544: Pkt throughput IPv4 test cases with vhost*
-| ...
-| ... | *[Top] Network Topologies:* TG-DUT1-TG 2-node circular topology
-| ... | with single links between nodes.
-| ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for IPv4 routing.
-| ... | *[Cfg] DUT configuration:* DUT1 is configured with IPv4
-| ... | routing and two static IPv4 /24 route entries. Qemu Guest is connected
-| ... | to VPP via vhost-user interfaces. Guest is running DPDK testpmd
-| ... | interconnecting vhost-user interfaces, forwarding mode is
-| ... | set to mac, rxd/txd=1024. DUT1 is tested with ${nic_name}.\
-| ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
-| ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
-| ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
-| ... | of packets transmitted. NDR and PDR are discovered for different\
-| ... | Ethernet L2 frame sizes using MLRsearch library.\
-| ... | Test packets are generated by TG on links to DUTs. TG traffic profile
-| ... | contains two L3 flow-groups (flow-group per direction, 253 flows per
-| ... | flow-group) with all packets containing Ethernet header, IPv4 header
-| ... | with IP protocol=61 and static payload. MAC addresses are matching MAC
-| ... | addresses of the TG node interfaces.
-
-*** Variables ***
-| ${nic_name}= | Intel-X710
-| ${overhead}= | ${0}
-# Traffic profile:
-| ${traffic_profile}= | trex-sl-2n-ethip4-ip4src253
-
-*** Keywords ***
-| Local Template
-| | [Documentation]
-| | ... | [Cfg] DUT runs IPv4 routing config.
-| | ... | Each DUT uses ${phy_cores} physical core(s) for worker threads.
-| | ... | [Ver] Measure NDR and PDR values using MLRsearch algorithm.\
-| | ...
-| | ... | *Arguments:*
-| | ... | - frame_size - Framesize in Bytes in integer or string (IMIX_v4_1).
-| | ... | Type: integer, string
-| | ... | - phy_cores - Number of physical cores. Type: integer
-| | ... | - rxq - Number of RX queues, default value: ${None}. Type: integer
-| | ...
-| | [Arguments] | ${frame_size} | ${phy_cores} | ${rxq}=${None}
-| | ...
-| | Set Test Variable | \${frame_size}
-| | ...
-| | ${dut1_vm_refs}= | Create Dictionary
-| | Set Test Variable | ${dut1_vm_refs}
-| | Given Add worker threads and rxqueues to all DUTs | ${phy_cores} | ${rxq}
-| | And Add PCI devices to all DUTs
-| | Set Max Rate And Jumbo And Handle Multi Seg
-| | And Apply startup configuration on all VPP DUTs
-| | When Initialize IPv4 forwarding with vhost in 2-node circular topology
-| | ... | vm_count=${2}
-| | And Configure guest VMs with dpdk-testpmd-mac connected via vhost-user
-| | ... | vm_count=${2} | jumbo=${jumbo} | perf_qemu_qsz=${1024}
-| | ... | use_tuned_cfs=${False}
-| | Then Find NDR and PDR intervals using optimized search
-
-*** Test Cases ***
-| tc01-64B-1c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 64B | 1C
-| | frame_size=${64} | phy_cores=${1}
-
-| tc02-64B-2c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 64B | 2C
-| | frame_size=${64} | phy_cores=${2}
-
-| tc03-64B-4c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 64B | 4C
-| | frame_size=${64} | phy_cores=${4}
-
-| tc04-1518B-1c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 1518B | 1C
-| | frame_size=${1518} | phy_cores=${1}
-
-| tc05-1518B-2c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 1518B | 2C
-| | frame_size=${1518} | phy_cores=${2}
-
-| tc06-1518B-4c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 1518B | 4C
-| | frame_size=${1518} | phy_cores=${4}
-
-| tc07-9000B-1c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 9000B | 1C
-| | frame_size=${9000} | phy_cores=${1}
-
-| tc08-9000B-2c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 9000B | 2C
-| | frame_size=${9000} | phy_cores=${2}
-
-| tc09-9000B-4c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | 9000B | 4C
-| | frame_size=${9000} | phy_cores=${4}
-
-| tc10-IMIX-1c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | IMIX | 1C
-| | frame_size=IMIX_v4_1 | phy_cores=${1}
-
-| tc11-IMIX-2c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | IMIX | 2C
-| | frame_size=IMIX_v4_1 | phy_cores=${2}
-
-| tc12-IMIX-4c-ethip4-ip4base-eth-4vhostvr1024-2vm-ndrpdr
-| | [Tags] | IMIX | 4C
-| | frame_size=IMIX_v4_1 | phy_cores=${4}
diff --git a/tests/vpp/perf/vts/10ge2p1x710-ethip4vxlan-l2bdbasemaclrn-eth-iacldstbase-aclpermit-2vhostvr1024-1vm-ndrpdr.robot b/tests/vpp/perf/vts/10ge2p1x710-ethip4vxlan-l2bdbasemaclrn-eth-iacldstbase-aclpermit-2vhostvr1024-1vm-ndrpdr.robot
index b5119e08fc..27ef3203dc 100644
--- a/tests/vpp/perf/vts/10ge2p1x710-ethip4vxlan-l2bdbasemaclrn-eth-iacldstbase-aclpermit-2vhostvr1024-1vm-ndrpdr.robot
+++ b/tests/vpp/perf/vts/10ge2p1x710-ethip4vxlan-l2bdbasemaclrn-eth-iacldstbase-aclpermit-2vhostvr1024-1vm-ndrpdr.robot
@@ -25,8 +25,7 @@
 | Suite Teardown | Tear down 3-node performance topology
 | ...
 | Test Setup | Set up performance test
-| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd and ACL
-| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
+| Test Teardown | Tear down performance test with vhost
 | ...
 | Test Template | Local Template
 | ...
@@ -38,12 +37,10 @@
 | ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for L2 switching of IPv4.
 | ... | Eth-IPv4-VXLAN-Eth-IPv4 is applied on link between DUT1 and DUT2.
 | ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with L2 bridge-
-| ... | domain and MAC learning enabled. Qemu Guest is connected to VPP via
-| ... | vhost-user interfaces. Guest is running DPDK testpmd interconnecting
-| ... | vhost-user interfaces using 5 cores pinned to cpus 5-9 and 2048M
-| ... | memory. Testpmd is using socket-mem=1024M (512x2M hugepages), 5 cores
-| ... | (1 main core and 4 cores dedicated for io), forwarding mode is set to
-| ... | io, rxd/txd=256, burst=64. DUT1, DUT2 are tested with ${nic_name}.\
+| ... | domain and MAC learning enabled. Qemu VNFs are connected \
+| ... | to VPP via vhost-user interfaces. Guest is running VPP l2xc \
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1/DUT2 is \
+| ... | tested with ${nic_name}.
 | ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
 | ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
 | ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
@@ -60,18 +57,16 @@
 *** Variables ***
 | ${nic_name}= | Intel-X710
 | ${overhead}= | ${50}
-# Socket names
+| ${nf_dtcr}= | ${1}
+| ${nf_dtc}= | ${1}
+| ${nf_chains}= | ${1}
+| ${nf_nodes}= | ${1}
 | ${dut1_bd_id1}= | 1
 | ${dut1_bd_id2}= | 2
 | ${dut2_bd_id1}= | 1
-| ${sock1}= | /var/run/vpp/sock-1-${dut1_bd_id1}
-| ${sock2}= | /var/run/vpp/sock-1-${dut1_bd_id2}
 # Traffic profile:
 | ${traffic_profile}= | trex-sl-ethip4-vxlansrc253
 | ${acl_type}= | permit
-# Defaults for teardown:
-| ${dut1}= | ${None}
-| ${dut1_vm_refs}= | ${None}
 
 *** Keywords ***
 | Local Template
@@ -99,8 +94,6 @@
 | | @{dut1_vxlans} = | Create List | ${vxlan1}
 | | @{dut2_vxlans} = | Create List | ${vxlan2}
 | | Set interfaces in path up
-| | Configure vhost interfaces for L2BD forwarding | ${dut1}
-| | ... | ${sock1} | ${sock2}
 | | When Init L2 bridge domains with single DUT with Vhost-User and VXLANoIPv4 in 3-node circular topology
 | | ... | 172.16.0.1 | 16 | 172.26.0.1 | 16 | 172.16.0.2 | 172.26.0.2
 | | ... | ${dut1_vxlans} | ${dut2_vxlans} | 172.17.0.0 | 16 | 172.27.0.0 | 16
@@ -108,13 +101,10 @@
 | | Run Keyword If | '${acl_type}' != '${EMPTY}'
 | | ... | Configure ACLs on a single interface | ${dut1} | ${dut1_if2} | input
 | | ... | ${acl_type} | @{permit_list}
-| | ${nf_cpus}= | Get Affinity NF | ${nodes} | DUT1 | nf_chains=${1}
-| | | ... | nf_nodes=${1} | nf_chain=${1} | nf_node=${1}
-| | | ... | vs_dtc=${cpu_count_int} | nf_dtc=${cpu_count_int}
-| | ${vm1} = | And Configure guest VM with dpdk-testpmd connected via vhost-user
-| | ... | DUT1 | ${sock1} | ${sock2} | ${TEST NAME}DUT1_VM1 | ${nf_cpus}
-| | ... | jumbo=${jumbo} | perf_qemu_qsz=${1024} | use_tuned_cfs=${False}
-| | Set Test Variable | &{dut1_vm_refs} | ${TEST NAME}DUT1_VM1=${vm1}
+| | And Configure chains of NFs connected via vhost-user on single node
+| | ... | node=DUT1 | nf_chains=${nf_chains} | nf_nodes=${nf_nodes}
+| | ... | jumbo=${jumbo} | use_tuned_cfs=${False} | auto_scale=${True}
+| | ... | vnf=vpp_chain_l2xc
 | | Then Find NDR and PDR intervals using optimized search
 
 *** Test Cases ***
diff --git a/tests/vpp/perf/vts/10ge2p1x710-ethip4vxlan-l2bdbasemaclrn-eth-iacldstbase-aclpermitreflect-2vhostvr1024-1vm-ndrpdr.robot b/tests/vpp/perf/vts/10ge2p1x710-ethip4vxlan-l2bdbasemaclrn-eth-iacldstbase-aclpermitreflect-2vhostvr1024-1vm-ndrpdr.robot
index 0345ceec3c..8e30354eb3 100644
--- a/tests/vpp/perf/vts/10ge2p1x710-ethip4vxlan-l2bdbasemaclrn-eth-iacldstbase-aclpermitreflect-2vhostvr1024-1vm-ndrpdr.robot
+++ b/tests/vpp/perf/vts/10ge2p1x710-ethip4vxlan-l2bdbasemaclrn-eth-iacldstbase-aclpermitreflect-2vhostvr1024-1vm-ndrpdr.robot
@@ -25,8 +25,7 @@
 | Suite Teardown | Tear down 3-node performance topology
 | ...
 | Test Setup | Set up performance test
-| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd and ACL
-| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
+| Test Teardown | Tear down performance test with vhost
 | ...
 | Test Template | Local Template
 | ...
@@ -38,12 +37,10 @@
 | ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for L2 switching of IPv4.
 | ... | Eth-IPv4-VXLAN-Eth-IPv4 is applied on link between DUT1 and DUT2.
 | ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with L2 bridge-
-| ... | domain and MAC learning enabled. Qemu Guest is connected to VPP via
-| ... | vhost-user interfaces. Guest is running DPDK testpmd interconnecting
-| ... | vhost-user interfaces using 5 cores pinned to cpus 5-9 and 2048M
-| ... | memory. Testpmd is using socket-mem=1024M (512x2M hugepages), 5 cores
-| ... | (1 main core and 4 cores dedicated for io), forwarding mode is set to
-| ... | io, rxd/txd=256, burst=64. DUT1, DUT2 are tested with ${nic_name}.\
+| ... | domain and MAC learning enabled. Qemu VNFs are connected \
+| ... | to VPP via vhost-user interfaces. Guest is running VPP l2xc \
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1/DUT2 is \
+| ... | tested with ${nic_name}.
 | ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
 | ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
 | ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
@@ -60,18 +57,16 @@
 *** Variables ***
 | ${nic_name}= | Intel-X710
 | ${overhead}= | ${50}
-# Socket names
+| ${nf_dtcr}= | ${1}
+| ${nf_dtc}= | ${1}
+| ${nf_chains}= | ${1}
+| ${nf_nodes}= | ${1}
 | ${dut1_bd_id1}= | 1
 | ${dut1_bd_id2}= | 2
 | ${dut2_bd_id1}= | 1
-| ${sock1}= | /var/run/vpp/sock-1-${dut1_bd_id1}
-| ${sock2}= | /var/run/vpp/sock-1-${dut1_bd_id2}
 # Traffic profile:
 | ${traffic_profile}= | trex-sl-ethip4-vxlansrc253
 | ${acl_type}= | permit+reflect
-# Defaults for teardown:
-| ${dut1}= | ${None}
-| ${dut1_vm_refs}= | ${None}
 
 *** Keywords ***
 | Local Template
@@ -99,22 +94,14 @@
 | | @{dut1_vxlans} = | Create List | ${vxlan1}
 | | @{dut2_vxlans} = | Create List | ${vxlan2}
 | | Set interfaces in path up
-| | Configure vhost interfaces for L2BD forwarding | ${dut1}
-| | ... | ${sock1} | ${sock2}
 | | When Init L2 bridge domains with single DUT with Vhost-User and VXLANoIPv4 in 3-node circular topology
 | | ... | 172.16.0.1 | 16 | 172.26.0.1 | 16 | 172.16.0.2 | 172.26.0.2
 | | ... | ${dut1_vxlans} | ${dut2_vxlans} | 172.17.0.0 | 16 | 172.27.0.0 | 16
 | | @{permit_list} = | Create List | 10.0.0.1/32 | 10.0.0.2/32
-| | Run Keyword If | '${acl_type}' != '${EMPTY}'
-| | ... | Configure ACLs on a single interface | ${dut1} | ${dut1_if2} | input
-| | ... | ${acl_type} | @{permit_list}
-| | ${nf_cpus}= | Get Affinity NF | ${nodes} | DUT1 | nf_chains=${1}
-| | | ... | nf_nodes=${1} | nf_chain=${1} | nf_node=${1}
-| | | ... | vs_dtc=${cpu_count_int} | nf_dtc=${cpu_count_int}
-| | ${vm1} = | And Configure guest VM with dpdk-testpmd connected via vhost-user
-| | ... | DUT1 | ${sock1} | ${sock2} | ${TEST NAME}DUT1_VM1 | ${nf_cpus}
-| | ... | jumbo=${jumbo} | perf_qemu_qsz=${1024} | use_tuned_cfs=${False}
-| | Set Test Variable | &{dut1_vm_refs} | ${TEST NAME}DUT1_VM1=${vm1}
+| | And Configure chains of NFs connected via vhost-user on single node
+| | ... | node=DUT1 | nf_chains=${nf_chains} | nf_nodes=${nf_nodes}
+| | ... | jumbo=${jumbo} | use_tuned_cfs=${False} | auto_scale=${True}
+| | ... | vnf=vpp_chain_l2xc
 | | Then Find NDR and PDR intervals using optimized search
 
 *** Test Cases ***
diff --git a/tests/vpp/perf/vts/10ge2p1x710-ethip4vxlan-l2bdbasemaclrn-eth-iacldstbase-noacl-2vhostvr1024-1vm-ndrpdr.robot b/tests/vpp/perf/vts/10ge2p1x710-ethip4vxlan-l2bdbasemaclrn-eth-iacldstbase-noacl-2vhostvr1024-1vm-ndrpdr.robot
index 3b7bd8f921..4e5d4df008 100644
--- a/tests/vpp/perf/vts/10ge2p1x710-ethip4vxlan-l2bdbasemaclrn-eth-iacldstbase-noacl-2vhostvr1024-1vm-ndrpdr.robot
+++ b/tests/vpp/perf/vts/10ge2p1x710-ethip4vxlan-l2bdbasemaclrn-eth-iacldstbase-noacl-2vhostvr1024-1vm-ndrpdr.robot
@@ -25,8 +25,7 @@
 | Suite Teardown | Tear down 3-node performance topology
 | ...
 | Test Setup | Set up performance test
-| Test Teardown | Tear down performance test with vhost and VM with dpdk-testpmd and ACL
-| ... | dut1_node=${dut1} | dut1_vm_refs=${dut1_vm_refs}
+| Test Teardown | Tear down performance test with vhost
 | ...
 | Test Template | Local Template
 | ...
@@ -38,12 +37,10 @@
 | ... | *[Enc] Packet Encapsulations:* Eth-IPv4 for L2 switching of IPv4.
 | ... | Eth-IPv4-VXLAN-Eth-IPv4 is applied on link between DUT1 and DUT2.
 | ... | *[Cfg] DUT configuration:* DUT1 and DUT2 are configured with L2 bridge-
-| ... | domain and MAC learning enabled. Qemu Guest is connected to VPP via
-| ... | vhost-user interfaces. Guest is running DPDK testpmd interconnecting
-| ... | vhost-user interfaces using 5 cores pinned to cpus 5-9 and 2048M
-| ... | memory. Testpmd is using socket-mem=1024M (512x2M hugepages), 5 cores
-| ... | (1 main core and 4 cores dedicated for io), forwarding mode is set to
-| ... | io, rxd/txd=256, burst=64. DUT1, DUT2 are tested with ${nic_name}.\
+| ... | domain and MAC learning enabled. Qemu VNFs are connected \
+| ... | to VPP via vhost-user interfaces. Guest is running VPP l2xc \
+| ... | interconnecting vhost-user interfaces, rxd/txd=1024. DUT1/DUT2 is \
+| ... | tested with ${nic_name}.
 | ... | *[Ver] TG verification:* TG finds and reports throughput NDR (Non Drop\
 | ... | Rate) with zero packet loss tolerance and throughput PDR (Partial Drop\
 | ... | Rate) with non-zero packet loss tolerance (LT) expressed in percentage\
@@ -60,18 +57,16 @@
 *** Variables ***
 | ${nic_name}= | Intel-X710
 | ${overhead}= | ${50}
-# Socket names
+| ${nf_dtcr}= | ${1}
+| ${nf_dtc}= | ${1}
+| ${nf_chains}= | ${1}
+| ${nf_nodes}= | ${1}
 | ${dut1_bd_id1}= | 1
 | ${dut1_bd_id2}= | 2
 | ${dut2_bd_id1}= | 1
-| ${sock1}= | /var/run/vpp/sock-1-${dut1_bd_id1}
-| ${sock2}= | /var/run/vpp/sock-1-${dut1_bd_id2}
 # Traffic profile:
 | ${traffic_profile}= | trex-sl-ethip4-vxlansrc253
 | ${acl_type}= | ${EMPTY}
-# Defaults for teardown:
-| ${dut1}= | ${None}
-| ${dut1_vm_refs}= | ${None}
 
 *** Keywords ***
 | Local Template
@@ -99,8 +94,6 @@
 | | @{dut1_vxlans} = | Create List | ${vxlan1}
 | | @{dut2_vxlans} = | Create List | ${vxlan2}
 | | Set interfaces in path up
-| | Configure vhost interfaces for L2BD forwarding | ${dut1}
-| | ... | ${sock1} | ${sock2}
 | | When Init L2 bridge domains with single DUT with Vhost-User and VXLANoIPv4 in 3-node circular topology
 | | ... | 172.16.0.1 | 16 | 172.26.0.1 | 16 | 172.16.0.2 | 172.26.0.2
 | | ... | ${dut1_vxlans} | ${dut2_vxlans} | 172.17.0.0 | 16 | 172.27.0.0 | 16
@@ -108,13 +101,10 @@
 | | Run Keyword If | '${acl_type}' != '${EMPTY}'
 | | ... | Configure ACLs on a single interface | ${dut1} | ${dut1_if2} | input
 | | ... | ${acl_type} | @{permit_list}
-| | ${nf_cpus}= | Get Affinity NF | ${nodes} | DUT1 | nf_chains=${1}
-| | | ... | nf_nodes=${1} | nf_chain=${1} | nf_node=${1}
-| | | ... | vs_dtc=${cpu_count_int} | nf_dtc=${cpu_count_int}
-| | ${vm1} = | And Configure guest VM with dpdk-testpmd connected via vhost-user
-| | ... | DUT1 | ${sock1} | ${sock2} | ${TEST NAME}DUT1_VM1 | ${nf_cpus}
-| | ... | jumbo=${jumbo} | perf_qemu_qsz=${1024} | use_tuned_cfs=${False}
-| | Set Test Variable | &{dut1_vm_refs} | ${TEST NAME}DUT1_VM1=${vm1}
+| | And Configure chains of NFs connected via vhost-user on single node
+| | ... | node=DUT1 | nf_chains=${nf_chains} | nf_nodes=${nf_nodes}
+| | ... | jumbo=${jumbo} | use_tuned_cfs=${False} | auto_scale=${True}
+| | ... | vnf=vpp_chain_l2xc
 | | Then Find NDR and PDR intervals using optimized search
 
 *** Test Cases ***