X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=tests%2Fperf%2FLong_IPv6_Intel-X520-DA2.robot;h=62a52042c16d076c03dfc5199fa26b4ad1f336c4;hb=8184e3073bc98a85709380f55fd18f0c01ac9cf3;hp=d48402ddd67936c710f66911f5712a0021b74a2a;hpb=345cd09bbbe57514f59d686a0338b672a786eba3;p=csit.git

diff --git a/tests/perf/Long_IPv6_Intel-X520-DA2.robot b/tests/perf/Long_IPv6_Intel-X520-DA2.robot
index d48402ddd6..62a52042c1 100644
--- a/tests/perf/Long_IPv6_Intel-X520-DA2.robot
+++ b/tests/perf/Long_IPv6_Intel-X520-DA2.robot
@@ -19,8 +19,13 @@
 | ... | L3 | Intel-X520-DA2
 | Suite Teardown | 3-node Performance Suite Teardown
 | Test Setup | Setup all DUTs before test
-| Test Teardown | Run Keywords | Remove startup configuration of VPP from all DUTs
-| ...           | AND          | Show vpp trace dump on all DUTs
+| Test Teardown | Run Keywords
+| ...           | Run Keyword If Test Failed
+| ...           | Traffic should pass with no loss | 10
+| ...           | ${min_rate}pps | ${framesize} | 3-node-IPv6
+| ...           | fail_on_loss=${False}
+| ...           | AND | Remove startup configuration of VPP from all DUTs
+| ...           | AND | Show vpp trace dump on all DUTs
 | Documentation | *RFC2544: Pkt throughput IPv6 routing test cases*
 | ...
 | ... | *[Top] Network Topologies:* TG-DUT1-DUT2-TG 3-node circular topology
@@ -42,6 +47,10 @@
 | ... | MAC addresses are matching MAC addresses of the TG node interfaces.
 | ... | *[Ref] Applicable standard specifications:* RFC2544.
 
+*** Variables ***
+#X520-DA2 bandwidth limit
+| ${s_limit} | ${10000000000}
+
 *** Test Cases ***
 | TC01: 78B NDR binary search - DUT IPv6 - 1thread 1core 1rxq
 | | [Documentation]
@@ -49,13 +58,13 @@
 | | ... | 1 receive queue per NIC port. [Ver] Find NDR for 78 Byte frames
 | | ... | using binary search start at 10GE linerate, step 100kpps.
 | | [Tags] | 1_THREAD_NOHTT_RXQUEUES_1 | SINGLE_THREAD | NDR
-| | ${framesize}= | Set Variable | 78
-| | ${min_rate}= | Set Variable | 100000
-| | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_78B}
+| | ${framesize}= | Set Variable | ${78}
+| | ${min_rate}= | Set Variable | ${100000}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${framesize}
 | | ${binary_min}= | Set Variable | ${min_rate}
 | | ${binary_max}= | Set Variable | ${max_rate}
 | | ${threshold}= | Set Variable | ${min_rate}
-| | Given Add '1' worker threads and rxqueues '1' without HTT to all DUTs
+| | Given Add '1' worker threads and rxqueues '1' in 3-node single-link topo
 | | And   Add PCI devices to DUTs from 3-node single link topology
 | | And   Add No Multi Seg to all DUTs
 | | And   Apply startup configuration on all VPP DUTs
@@ -71,13 +80,13 @@
 | | ... | 1 receive queue per NIC port. [Ver] Find PDR for 78 Byte frames
 | | ... | using binary search start at 10GE linerate, step 100kpps, LT=0.5%.
 | | [Tags] | 1_THREAD_NOHTT_RXQUEUES_1 | SINGLE_THREAD | PDR | SKIP_PATCH
-| | ${framesize}= | Set Variable | 78
-| | ${min_rate}= | Set Variable | 100000
-| | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_78B}
+| | ${framesize}= | Set Variable | ${78}
+| | ${min_rate}= | Set Variable | ${100000}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${framesize}
 | | ${binary_min}= | Set Variable | ${min_rate}
 | | ${binary_max}= | Set Variable | ${max_rate}
 | | ${threshold}= | Set Variable | ${min_rate}
-| | Given Add '1' worker threads and rxqueues '1' without HTT to all DUTs
+| | Given Add '1' worker threads and rxqueues '1' in 3-node single-link topo
 | | And   Add PCI devices to DUTs from 3-node single link topology
 | | And   Add No Multi Seg to all DUTs
 | | And   Apply startup configuration on all VPP DUTs
@@ -95,13 +104,13 @@
 | | ... | 1 receive queue per NIC port. [Ver] Find NDR for 1518 Byte frames
 | | ... | using binary search start at 10GE linerate, step 10kpps.
 | | [Tags] | 1_THREAD_NOHTT_RXQUEUES_1 | SINGLE_THREAD | NDR
-| | ${framesize}= | Set Variable | 1518
-| | ${min_rate}= | Set Variable | 10000
-| | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_1518B}
+| | ${framesize}= | Set Variable | ${1518}
+| | ${min_rate}= | Set Variable | ${10000}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${framesize}
 | | ${binary_min}= | Set Variable | ${min_rate}
 | | ${binary_max}= | Set Variable | ${max_rate}
 | | ${threshold}= | Set Variable | ${min_rate}
-| | Given Add '1' worker threads and rxqueues '1' without HTT to all DUTs
+| | Given Add '1' worker threads and rxqueues '1' in 3-node single-link topo
 | | And   Add PCI devices to DUTs from 3-node single link topology
 | | And   Add No Multi Seg to all DUTs
 | | And   Apply startup configuration on all VPP DUTs
@@ -117,13 +126,13 @@
 | | ... | 1 receive queue per NIC port. [Ver] Find PDR for 1518 Byte frames
 | | ... | using binary search start at 10GE linerate, step 10kpps, LT=0.5%.
 | | [Tags] | 1_THREAD_NOHTT_RXQUEUES_1 | SINGLE_THREAD | PDR | SKIP_PATCH
-| | ${framesize}= | Set Variable | 1518
-| | ${min_rate}= | Set Variable | 10000
-| | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_1518B}
+| | ${framesize}= | Set Variable | ${1518}
+| | ${min_rate}= | Set Variable | ${10000}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${framesize}
 | | ${binary_min}= | Set Variable | ${min_rate}
 | | ${binary_max}= | Set Variable | ${max_rate}
 | | ${threshold}= | Set Variable | ${min_rate}
-| | Given Add '1' worker threads and rxqueues '1' without HTT to all DUTs
+| | Given Add '1' worker threads and rxqueues '1' in 3-node single-link topo
 | | And   Add PCI devices to DUTs from 3-node single link topology
 | | And   Add No Multi Seg to all DUTs
 | | And   Apply startup configuration on all VPP DUTs
@@ -141,13 +150,13 @@
 | | ... | 1 receive queue per NIC port. [Ver] Find NDR for 9000 Byte frames
 | | ... | using binary search start at 10GE linerate, step 5kpps.
 | | [Tags] | 1_THREAD_NOHTT_RXQUEUES_1 | SINGLE_THREAD | NDR
-| | ${framesize}= | Set Variable | 9000
-| | ${min_rate}= | Set Variable | 5000
-| | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_9000B}
+| | ${framesize}= | Set Variable | ${9000}
+| | ${min_rate}= | Set Variable | ${10000}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${framesize}
 | | ${binary_min}= | Set Variable | ${min_rate}
 | | ${binary_max}= | Set Variable | ${max_rate}
 | | ${threshold}= | Set Variable | ${min_rate}
-| | Given Add '1' worker threads and rxqueues '1' without HTT to all DUTs
+| | Given Add '1' worker threads and rxqueues '1' in 3-node single-link topo
 | | And   Add PCI devices to DUTs from 3-node single link topology
 | | And   Apply startup configuration on all VPP DUTs
 | | And   IPv6 forwarding initialized in a 3-node circular topology
@@ -162,13 +171,13 @@
 | | ... | 1 receive queue per NIC port. [Ver] Find PDR for 9000 Byte frames
 | | ... | using binary search start at 10GE linerate, step 5kpps, LT=0.5%.
 | | [Tags] | 1_THREAD_NOHTT_RXQUEUES_1 | SINGLE_THREAD | PDR | SKIP_PATCH
-| | ${framesize}= | Set Variable | 9000
-| | ${min_rate}= | Set Variable | 5000
-| | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_9000B}
+| | ${framesize}= | Set Variable | ${9000}
+| | ${min_rate}= | Set Variable | ${10000}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${framesize}
 | | ${binary_min}= | Set Variable | ${min_rate}
 | | ${binary_max}= | Set Variable | ${max_rate}
 | | ${threshold}= | Set Variable | ${min_rate}
-| | Given Add '1' worker threads and rxqueues '1' without HTT to all DUTs
+| | Given Add '1' worker threads and rxqueues '1' in 3-node single-link topo
 | | And   Add PCI devices to DUTs from 3-node single link topology
 | | And   Apply startup configuration on all VPP DUTs
 | | And   IPv6 forwarding initialized in a 3-node circular topology
@@ -185,13 +194,13 @@
 | | ... | 1 receive queue per NIC port. [Ver] Find NDR for 78 Byte frames
 | | ... | using binary search start at 10GE linerate, step 100kpps.
 | | [Tags] | 2_THREAD_NOHTT_RXQUEUES_1 | MULTI_THREAD | NDR
-| | ${framesize}= | Set Variable | 78
-| | ${min_rate}= | Set Variable | 100000
-| | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_78B}
+| | ${framesize}= | Set Variable | ${78}
+| | ${min_rate}= | Set Variable | ${100000}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${framesize}
 | | ${binary_min}= | Set Variable | ${min_rate}
 | | ${binary_max}= | Set Variable | ${max_rate}
 | | ${threshold}= | Set Variable | ${min_rate}
-| | Given Add '2' worker threads and rxqueues '1' without HTT to all DUTs
+| | Given Add '2' worker threads and rxqueues '1' in 3-node single-link topo
 | | And   Add PCI devices to DUTs from 3-node single link topology
 | | And   Add No Multi Seg to all DUTs
 | | And   Apply startup configuration on all VPP DUTs
@@ -207,13 +216,13 @@
 | | ... | 1 receive queue per NIC port. [Ver] Find PDR for 78 Byte frames
 | | ... | using binary search start at 10GE linerate, step 100kpps, LT=0.5%.
 | | [Tags] | 2_THREAD_NOHTT_RXQUEUES_1 | MULTI_THREAD | PDR | SKIP_PATCH
-| | ${framesize}= | Set Variable | 78
-| | ${min_rate}= | Set Variable | 100000
-| | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_78B}
+| | ${framesize}= | Set Variable | ${78}
+| | ${min_rate}= | Set Variable | ${100000}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${framesize}
 | | ${binary_min}= | Set Variable | ${min_rate}
 | | ${binary_max}= | Set Variable | ${max_rate}
 | | ${threshold}= | Set Variable | ${min_rate}
-| | Given Add '2' worker threads and rxqueues '1' without HTT to all DUTs
+| | Given Add '2' worker threads and rxqueues '1' in 3-node single-link topo
 | | And   Add PCI devices to DUTs from 3-node single link topology
 | | And   Add No Multi Seg to all DUTs
 | | And   Apply startup configuration on all VPP DUTs
@@ -231,13 +240,13 @@
 | | ... | 1 receive queue per NIC port. [Ver] Find NDR for 1518 Byte frames
 | | ... | using binary search start at 10GE linerate, step 10kpps.
 | | [Tags] | 2_THREAD_NOHTT_RXQUEUES_1 | MULTI_THREAD | NDR | SKIP_PATCH
-| | ${framesize}= | Set Variable | 1518
-| | ${min_rate}= | Set Variable | 10000
-| | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_1518B}
+| | ${framesize}= | Set Variable | ${1518}
+| | ${min_rate}= | Set Variable | ${10000}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${framesize}
 | | ${binary_min}= | Set Variable | ${min_rate}
 | | ${binary_max}= | Set Variable | ${max_rate}
 | | ${threshold}= | Set Variable | ${min_rate}
-| | Given Add '2' worker threads and rxqueues '1' without HTT to all DUTs
+| | Given Add '2' worker threads and rxqueues '1' in 3-node single-link topo
 | | And   Add PCI devices to DUTs from 3-node single link topology
 | | And   Add No Multi Seg to all DUTs
 | | And   Apply startup configuration on all VPP DUTs
@@ -253,13 +262,13 @@
 | | ... | 1 receive queue per NIC port. [Ver] Find PDR for 1518 Byte frames
 | | ... | using binary search start at 10GE linerate, step 10kpps, LT=0.5%.
 | | [Tags] | 2_THREAD_NOHTT_RXQUEUES_1 | MULTI_THREAD | PDR | SKIP_PATCH
-| | ${framesize}= | Set Variable | 1518
-| | ${min_rate}= | Set Variable | 10000
-| | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_1518B}
+| | ${framesize}= | Set Variable | ${1518}
+| | ${min_rate}= | Set Variable | ${10000}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${framesize}
 | | ${binary_min}= | Set Variable | ${min_rate}
 | | ${binary_max}= | Set Variable | ${max_rate}
 | | ${threshold}= | Set Variable | ${min_rate}
-| | Given Add '2' worker threads and rxqueues '1' without HTT to all DUTs
+| | Given Add '2' worker threads and rxqueues '1' in 3-node single-link topo
 | | And   Add PCI devices to DUTs from 3-node single link topology
 | | And   Add No Multi Seg to all DUTs
 | | And   Apply startup configuration on all VPP DUTs
@@ -277,13 +286,13 @@
 | | ... | 1 receive queue per NIC port. [Ver] Find NDR for 9000 Byte frames
 | | ... | using binary search start at 10GE linerate, step 5kpps.
 | | [Tags] | 2_THREAD_NOHTT_RXQUEUES_1 | MULTI_THREAD | NDR | SKIP_PATCH
-| | ${framesize}= | Set Variable | 9000
-| | ${min_rate}= | Set Variable | 5000
-| | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_9000B}
+| | ${framesize}= | Set Variable | ${9000}
+| | ${min_rate}= | Set Variable | ${10000}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${framesize}
 | | ${binary_min}= | Set Variable | ${min_rate}
 | | ${binary_max}= | Set Variable | ${max_rate}
 | | ${threshold}= | Set Variable | ${min_rate}
-| | Given Add '2' worker threads and rxqueues '1' without HTT to all DUTs
+| | Given Add '2' worker threads and rxqueues '1' in 3-node single-link topo
 | | And   Add PCI devices to DUTs from 3-node single link topology
 | | And   Apply startup configuration on all VPP DUTs
 | | And   IPv6 forwarding initialized in a 3-node circular topology
@@ -298,13 +307,13 @@
 | | ... | 1 receive queue per NIC port. [Ver] Find PDR for 9000 Byte frames
 | | ... | using binary search start at 10GE linerate, step 5kpps, LT=0.5%.
 | | [Tags] | 2_THREAD_NOHTT_RXQUEUES_1 | MULTI_THREAD | PDR | SKIP_PATCH
-| | ${framesize}= | Set Variable | 9000
-| | ${min_rate}= | Set Variable | 5000
-| | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_9000B}
+| | ${framesize}= | Set Variable | ${9000}
+| | ${min_rate}= | Set Variable | ${10000}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${framesize}
 | | ${binary_min}= | Set Variable | ${min_rate}
 | | ${binary_max}= | Set Variable | ${max_rate}
 | | ${threshold}= | Set Variable | ${min_rate}
-| | Given Add '2' worker threads and rxqueues '1' without HTT to all DUTs
+| | Given Add '2' worker threads and rxqueues '1' in 3-node single-link topo
 | | And   Add PCI devices to DUTs from 3-node single link topology
 | | And   Apply startup configuration on all VPP DUTs
 | | And   IPv6 forwarding initialized in a 3-node circular topology
@@ -321,13 +330,13 @@
 | | ... | 2 receive queues per NIC port. [Ver] Find NDR for 78 Byte frames
 | | ... | using binary search start at 10GE linerate, step 100kpps.
 | | [Tags] | 4_THREAD_NOHTT_RXQUEUES_2 | MULTI_THREAD | NDR
-| | ${framesize}= | Set Variable | 78
-| | ${min_rate}= | Set Variable | 100000
-| | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_78B}
+| | ${framesize}= | Set Variable | ${78}
+| | ${min_rate}= | Set Variable | ${100000}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${framesize}
 | | ${binary_min}= | Set Variable | ${min_rate}
 | | ${binary_max}= | Set Variable | ${max_rate}
 | | ${threshold}= | Set Variable | ${min_rate}
-| | Given Add '4' worker threads and rxqueues '2' without HTT to all DUTs
+| | Given Add '4' worker threads and rxqueues '2' in 3-node single-link topo
 | | And   Add PCI devices to DUTs from 3-node single link topology
 | | And   Add No Multi Seg to all DUTs
 | | And   Apply startup configuration on all VPP DUTs
@@ -343,13 +352,13 @@
 | | ... | 2 receive queues per NIC port. [Ver] Find PDR for 78 Byte frames
 | | ... | using binary search start at 10GE linerate, step 100kpps, LT=0.5%.
 | | [Tags] | 4_THREAD_NOHTT_RXQUEUES_2 | MULTI_THREAD | PDR | SKIP_PATCH
-| | ${framesize}= | Set Variable | 78
-| | ${min_rate}= | Set Variable | 100000
-| | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_78B}
+| | ${framesize}= | Set Variable | ${78}
+| | ${min_rate}= | Set Variable | ${100000}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${framesize}
 | | ${binary_min}= | Set Variable | ${min_rate}
 | | ${binary_max}= | Set Variable | ${max_rate}
 | | ${threshold}= | Set Variable | ${min_rate}
-| | Given Add '4' worker threads and rxqueues '2' without HTT to all DUTs
+| | Given Add '4' worker threads and rxqueues '2' in 3-node single-link topo
 | | And   Add PCI devices to DUTs from 3-node single link topology
 | | And   Add No Multi Seg to all DUTs
 | | And   Apply startup configuration on all VPP DUTs
@@ -367,13 +376,13 @@
 | | ... | 2 receive queues per NIC port. [Ver] Find NDR for 1518 Byte frames
 | | ... | using binary search start at 10GE linerate, step 10kpps.
 | | [Tags] | 4_THREAD_NOHTT_RXQUEUES_2 | MULTI_THREAD | NDR | SKIP_PATCH
-| | ${framesize}= | Set Variable | 1518
-| | ${min_rate}= | Set Variable | 10000
-| | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_1518B}
+| | ${framesize}= | Set Variable | ${1518}
+| | ${min_rate}= | Set Variable | ${10000}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${framesize}
 | | ${binary_min}= | Set Variable | ${min_rate}
 | | ${binary_max}= | Set Variable | ${max_rate}
 | | ${threshold}= | Set Variable | ${min_rate}
-| | Given Add '4' worker threads and rxqueues '2' without HTT to all DUTs
+| | Given Add '4' worker threads and rxqueues '2' in 3-node single-link topo
 | | And   Add PCI devices to DUTs from 3-node single link topology
 | | And   Add No Multi Seg to all DUTs
 | | And   Apply startup configuration on all VPP DUTs
@@ -389,13 +398,13 @@
 | | ... | 2 receive queues per NIC port. [Ver] Find PDR for 1518 Byte frames
 | | ... | using binary search start at 10GE linerate, step 10kpps, LT=0.5%.
 | | [Tags] | 4_THREAD_NOHTT_RXQUEUES_2 | MULTI_THREAD | PDR | SKIP_PATCH
-| | ${framesize}= | Set Variable | 1518
-| | ${min_rate}= | Set Variable | 10000
-| | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_1518B}
+| | ${framesize}= | Set Variable | ${1518}
+| | ${min_rate}= | Set Variable | ${10000}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${framesize}
 | | ${binary_min}= | Set Variable | ${min_rate}
 | | ${binary_max}= | Set Variable | ${max_rate}
 | | ${threshold}= | Set Variable | ${min_rate}
-| | Given Add '4' worker threads and rxqueues '2' without HTT to all DUTs
+| | Given Add '4' worker threads and rxqueues '2' in 3-node single-link topo
 | | And   Add PCI devices to DUTs from 3-node single link topology
 | | And   Add No Multi Seg to all DUTs
 | | And   Apply startup configuration on all VPP DUTs
@@ -413,13 +422,13 @@
 | | ... | 2 receive queues per NIC port. [Ver] Find NDR for 9000 Byte frames
 | | ... | using binary search start at 10GE linerate, step 5kpps.
 | | [Tags] | 4_THREAD_NOHTT_RXQUEUES_2 | MULTI_THREAD | NDR | SKIP_PATCH
-| | ${framesize}= | Set Variable | 9000
-| | ${min_rate}= | Set Variable | 5000
-| | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_9000B}
+| | ${framesize}= | Set Variable | ${9000}
+| | ${min_rate}= | Set Variable | ${10000}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${framesize}
 | | ${binary_min}= | Set Variable | ${min_rate}
 | | ${binary_max}= | Set Variable | ${max_rate}
 | | ${threshold}= | Set Variable | ${min_rate}
-| | Given Add '4' worker threads and rxqueues '2' without HTT to all DUTs
+| | Given Add '4' worker threads and rxqueues '2' in 3-node single-link topo
 | | And   Add PCI devices to DUTs from 3-node single link topology
 | | And   Apply startup configuration on all VPP DUTs
 | | And   IPv6 forwarding initialized in a 3-node circular topology
@@ -434,13 +443,13 @@
 | | ... | 2 receive queues per NIC port. [Ver] Find PDR for 9000 Byte frames
 | | ... | using binary search start at 10GE linerate, step 5kpps, LT=0.5%.
 | | [Tags] | 4_THREAD_NOHTT_RXQUEUES_2 | MULTI_THREAD | PDR | SKIP_PATCH
-| | ${framesize}= | Set Variable | 9000
-| | ${min_rate}= | Set Variable | 5000
-| | ${max_rate}= | Set Variable | ${10Ge_linerate_pps_9000B}
+| | ${framesize}= | Set Variable | ${9000}
+| | ${min_rate}= | Set Variable | ${10000}
+| | ${max_rate}= | Calculate pps | ${s_limit} | ${framesize}
 | | ${binary_min}= | Set Variable | ${min_rate}
 | | ${binary_max}= | Set Variable | ${max_rate}
 | | ${threshold}= | Set Variable | ${min_rate}
-| | Given Add '4' worker threads and rxqueues '2' without HTT to all DUTs
+| | Given Add '4' worker threads and rxqueues '2' in 3-node single-link topo
 | | And   Add PCI devices to DUTs from 3-node single link topology
 | | And   Apply startup configuration on all VPP DUTs
 | | And   IPv6 forwarding initialized in a 3-node circular topology