CSIT-98: MAC split-horizon group, part II

- test cases to test MAC split-horizon group functionality together
with VXLAN tunnel over IPv4 and over IPv6
- two IPv6 tests tagged EXPECTED_FAILING until VPP-98 is closed

- added update of bootstrap.sh - vpp build updated to version
  16.09-rc0~33-g4b46c84~b200_amd64

Change-Id: I1da6a98b11f5c39cd114abb35bb8f398cbbebf63
Signed-off-by: Jan Gelety <jgelety@cisco.com>

3 files changed, 336 insertions, 18 deletions

diff --git a/bootstrap.sh b/bootstrap.sh
index d1ca2f4606..9c7db03b01 100755
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -110,8 +110,8 @@ if [ "${#}" -ne "0" ]; then
     echo ${arr[0]}
 else
     rm -f *.deb
-    VPP_STABLE_VER="1.0.0-451~g686a5a5_amd64"
-    VPP_REPO_URL="https://nexus.fd.io/service/local/repositories/fd.io.dev/content/io/fd/vpp"
+    VPP_STABLE_VER="16.09-rc0~33-g4b46c84~b200_amd64"
+    VPP_REPO_URL="https://nexus.fd.io/service/local/repositories/fd.io.master.ubuntu.trusty.main/content/io/fd/vpp"
     wget -q "${VPP_REPO_URL}/vpp/${VPP_STABLE_VER}/vpp-${VPP_STABLE_VER}.deb" || exit
     wget -q "${VPP_REPO_URL}/vpp-dbg/${VPP_STABLE_VER}/vpp-dbg-${VPP_STABLE_VER}.deb" || exit
     wget -q "${VPP_REPO_URL}/vpp-dev/${VPP_STABLE_VER}/vpp-dev-${VPP_STABLE_VER}.deb" || exit
diff --git a/resources/libraries/robot/bridge_domain.robot b/resources/libraries/robot/bridge_domain.robot
index f1458a0023..96af11d2da 100644
--- a/resources/libraries/robot/bridge_domain.robot
+++ b/resources/libraries/robot/bridge_domain.robot
@@ -216,7 +216,7 @@
 | | ... | *Example:*
 | | ...
 | | ... | \| VM for Vhost L2BD forwarding is setup \| ${nodes['DUT1']} \
-| | ... | \| /tmp/sock1 \| /tmp/sock2
+| | ... | \| /tmp/sock1 \| /tmp/sock2 \|
 | | [Arguments] | ${node} | ${sock1} | ${sock2}
 | | Set Test Variable | ${vm_node} | ${None}
 | | Qemu Set Node | ${node}
@@ -247,7 +247,7 @@
 | | ... | *Example:*
 | | ...
 | | ... | \| VPP Vhost interfaces for L2BD forwarding are setup \
-| | ... | \| ${nodes['DUT1']} \| /tmp/sock1 \| /tmp/sock2
+| | ... | \| ${nodes['DUT1']} \| /tmp/sock1 \| /tmp/sock2 \|
 | | [Arguments] | ${node} | ${sock1} | ${sock2}
 | | ${vhost_if1}= | Vpp Create Vhost User Interface | ${node} | ${sock1}
 | | ${vhost_if2}= | Vpp Create Vhost User Interface | ${node} | ${sock2}
diff --git a/tests/suites/vxlan/vxlan_bd_untagged.robot b/tests/suites/vxlan/vxlan_bd_untagged.robot
index ecf2c55e33..5ce93e04b6 100644
--- a/tests/suites/vxlan/vxlan_bd_untagged.robot
+++ b/tests/suites/vxlan/vxlan_bd_untagged.robot
@@ -24,23 +24,341 @@
 | Test Teardown | Show Packet Trace on All DUTs | ${nodes}
 
 *** Variables ***
-| ${VNI}= | 23
-| ${BID}= | 23
+| ${vni_1}= | 23
+| ${vni_2}= | 35
+
+| ${bd_id1}= | 10
+| ${bd_id2}= | 20
+| ${bd_id3}= | 30
+| ${shg1}= | 1
+| ${shg2}= | 2
+
+| ${ip4_addr1}= | 172.16.0.1
+| ${ip4_addr2}= | 172.16.0.2
+| ${ip4_prefix}= | 24
+
+| ${ip6_addr1}= | 3ffe:64::1
+| ${ip6_addr2}= | 3ffe:64::2
+| ${ip6_prefix}= | 64
 
 *** Test Cases ***
-| VPP can pass IPv4 bidirectionally through VXLAN
+| VPP can pass IPv4 bidirectionally through VXLAN using bridge domain
+| | [Documentation] | Create VXLAN interface on both VPP nodes. Create one
+| | ...             | bridge domain (learning enabled) on both VPP nodes, add
+| | ...             | VXLAN interface and interface toward TG to bridge domains
+| | ...             | and check traffic bidirectionally.
 | | Given Path for 3-node testing is set
 | | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['DUT2']} | ${nodes['TG']}
-| | And   Interfaces in 3-node path are up
-| | And   IP addresses are set on interfaces | ${dut1_node} | ${dut1_to_dut2} | ${NONE}
-| |       ...                                | ${dut2_node} | ${dut2_to_dut1} | ${NONE}
-| | ${dut1s_vxlan}= | When Create VXLAN interface     | ${dut1_node} | ${VNI}
-| |                 | ...  | ${dut1s_ip_address} | ${dut2s_ip_address}
-| |                   And  Interfaces are added to BD | ${dut1_node} | ${BID}
-| |                   ...  | ${dut1_to_tg} | ${dut1s_vxlan}
-| | ${dut2s_vxlan}= | And  Create VXLAN interface     | ${dut2_node} | ${VNI}
-| |                 | ...  | ${dut2s_ip_address} | ${dut1s_ip_address}
-| |                   And  Interfaces are added to BD | ${dut2_node} | ${BID}
-| |                   ...  | ${dut2_to_tg} | ${dut2s_vxlan}
+| | And Interfaces in 3-node path are up
+| | And IP addresses are set on interfaces | ${dut1_node} | ${dut1_to_dut2} | ${NONE}
+| | ...                                    | ${dut2_node} | ${dut2_to_dut1} | ${NONE}
+| | ${dut1s_vxlan}= | When Create VXLAN interface     | ${dut1_node} | ${vni_1}
+| |                 | ... | ${dut1s_ip_address} | ${dut2s_ip_address}
+| | And  Interfaces are added to BD | ${dut1_node} | ${bd_id1}
+| | ...                             | ${dut1_to_tg} | ${dut1s_vxlan}
+| | ${dut2s_vxlan}= | And Create VXLAN interface | ${dut2_node} | ${vni_1}
+| |                 | ... | ${dut2s_ip_address} | ${dut1s_ip_address}
+| | And  Interfaces are added to BD | ${dut2_node} | ${bd_id1}
+| | ...                             | ${dut2_to_tg} | ${dut2s_vxlan}
 | | Then Send and receive ICMPv4 bidirectionally
 | | ... | ${tg_node} | ${tg_to_dut1} | ${tg_to_dut2}
+
+| Vpp forwards ICMPv4 packets through VXLAN tunnels in the same split-horizon group of one L2 bridge domain
+| | [Documentation] | Create two VXLAN interfaces on both VPP nodes. Create one
+| | ...             | bridge domain (learning enabled) on the first VPP node,
+| | ...             | add VXLAN interfaces to the same split-horizon group of
+| | ...             | the bridge domain where interfaces toward TG are added to.
+| | ...             | Create two bridge domains (learning enabled) on the second
+| | ...             | VPP node and add one VXLAN interface and one interface
+| | ...             | toward TG to each of them. Check traffic bidirectionally.
+| | [Tags] | 3_NODE_DOUBLE_LINK_TOPO
+| | Given Path for 3-node BD-SHG testing is set | ${nodes['TG']}
+| | ...                                         | ${nodes['DUT1']}
+| | ...                                         | ${nodes['DUT2']}
+| | And Interfaces in 3-node BD-SHG testing are up
+| | And Set Interface Address | ${dut1_node} | ${dut1_to_dut2} | ${ip4_addr1}
+| | ...                       | ${ip4_prefix}
+| | And Set Interface Address | ${dut2_node} | ${dut2_to_dut1} | ${ip4_addr2}
+| | ...                       | ${ip4_prefix}
+| | And VPP IP Probe | ${dut1_node} | ${dut1_to_dut2} | ${ip4_addr2}
+| | And VPP IP Probe | ${dut2_node} | ${dut2_to_dut1} | ${ip4_addr1}
+| | ${dut1s_vxlan1}= | When Create VXLAN interface | ${dut1_node} | ${vni_1}
+| | | ...                                          | ${ip4_addr1} | ${ip4_addr2}
+| | ${dut1s_vxlan2}= | And Create VXLAN interface | ${dut1_node} | ${vni_2}
+| | | ...                                         | ${ip4_addr1} | ${ip4_addr2}
+| | ${dut2s_vxlan1}= | And Create VXLAN interface | ${dut2_node} | ${vni_1}
+| | | ...                                         | ${ip4_addr2} | ${ip4_addr1}
+| | ${dut2s_vxlan2}= | And Create VXLAN interface | ${dut2_node} | ${vni_2}
+| | | ...                                         | ${ip4_addr2} | ${ip4_addr1}
+| | And Set Interface State | ${dut1_node} | ${dut1s_vxlan1} | up
+| | And Set Interface State | ${dut1_node} | ${dut1s_vxlan2} | up
+| | And Set Interface State | ${dut2_node} | ${dut2s_vxlan1} | up
+| | And Set Interface State | ${dut2_node} | ${dut2s_vxlan2} | up
+| | And Vpp Node Interfaces Ready Wait | ${dut1_node}
+| | And Vpp Node Interfaces Ready Wait | ${dut2_node}
+| | And Bridge domain on DUT node is created | ${dut1_node} | ${bd_id1}
+| | And Interface is added to bridge domain | ${dut1_node} | ${dut1_to_tg_if1}
+| | ...                                     | ${bd_id1}
+| | And Interface is added to bridge domain | ${dut1_node} | ${dut1_to_tg_if2}
+| | ...                                     | ${bd_id1}
+| | And Interface is added to bridge domain | ${dut1_node} | ${dut1s_vxlan1}
+| | ...                                     | ${bd_id1} | ${shg1}
+| | And Interface is added to bridge domain | ${dut1_node} | ${dut1s_vxlan2}
+| | ...                                     | ${bd_id1} | ${shg1}
+| | And Bridge domain on DUT node is created | ${dut2_node} | ${bd_id2}
+| | And Interface is added to bridge domain | ${dut2_node} | ${dut2_to_tg_if1}
+| | ...                                     | ${bd_id2}
+| | And Interface is added to bridge domain | ${dut2_node} | ${dut2s_vxlan1}
+| | ...                                     | ${bd_id2}
+| | And Bridge domain on DUT node is created | ${dut2_node} | ${bd_id3}
+| | And Interface is added to bridge domain | ${dut2_node} | ${dut2_to_tg_if2}
+| | ...                                     | ${bd_id3}
+| | And Interface is added to bridge domain | ${dut2_node} | ${dut2s_vxlan2}
+| | ...                                     | ${bd_id3}
+| | Then Send and receive ICMPv4 bidirectionally | ${tg_node}
+| | ...                                          | ${tg_to_dut1_if1}
+| | ...                                          | ${tg_to_dut2_if1}
+| | And Send and receive ICMPv4 bidirectionally | ${tg_node}
+| | ...                                         | ${tg_to_dut1_if1}
+| | ...                                         | ${tg_to_dut2_if2}
+| | And Send and receive ICMPv4 bidirectionally | ${tg_node}
+| | ...                                         | ${tg_to_dut1_if2}
+| | ...                                         | ${tg_to_dut2_if1}
+| | And Send and receive ICMPv4 bidirectionally | ${tg_node}
+| | ...                                         | ${tg_to_dut1_if2}
+| | ...                                         | ${tg_to_dut2_if2}
+| | And Run Keyword And Expect Error | ICMP echo Rx timeout
+| | ...                              | Send and receive ICMPv4 bidirectionally
+| | | ...                            | ${tg_node} | ${tg_to_dut2_if1}
+| | | ...                            | ${tg_to_dut2_if2}
+
+| Vpp forwards ICMPv4 packets through VXLAN tunnels in different split-horizon groups of one L2 bridge domain
+| | [Documentation] | Create two VXLAN interfaces on both VPP nodes. Create one
+| | ...             | bridge domain (learning enabled) on the first VPP node,
+| | ...             | add VXLAN interfaces to different split-horizon groups of
+| | ...             | the bridge domain where interfaces toward TG are added to.
+| | ...             | Create two bridge domains (learning enabled) on the second
+| | ...             | VPP node and add one VXLAN interface and one interface
+| | ...             | toward TG to each of them. Check traffic bidirectionally.
+| | [Tags] | 3_NODE_DOUBLE_LINK_TOPO
+| | Given Path for 3-node BD-SHG testing is set | ${nodes['TG']}
+| | ...                                         | ${nodes['DUT1']}
+| | ...                                         | ${nodes['DUT2']}
+| | And Interfaces in 3-node BD-SHG testing are up
+| | And Set Interface Address | ${dut1_node} | ${dut1_to_dut2} | ${ip4_addr1}
+| | ...                       | ${ip4_prefix}
+| | And Set Interface Address | ${dut2_node} | ${dut2_to_dut1} | ${ip4_addr2}
+| | ...                       | ${ip4_prefix}
+| | And VPP IP Probe | ${dut1_node} | ${dut1_to_dut2} | ${ip4_addr2}
+| | And VPP IP Probe | ${dut2_node} | ${dut2_to_dut1} | ${ip4_addr1}
+| | ${dut1s_vxlan1}= | When Create VXLAN interface | ${dut1_node} | ${vni_1}
+| | | ...                                          | ${ip4_addr1} | ${ip4_addr2}
+| | ${dut1s_vxlan2}= | And Create VXLAN interface | ${dut1_node} | ${vni_2}
+| | | ...                                         | ${ip4_addr1} | ${ip4_addr2}
+| | ${dut2s_vxlan1}= | And Create VXLAN interface | ${dut2_node} | ${vni_1}
+| | | ...                                         | ${ip4_addr2} | ${ip4_addr1}
+| | ${dut2s_vxlan2}= | And Create VXLAN interface | ${dut2_node} | ${vni_2}
+| | | ...                                         | ${ip4_addr2} | ${ip4_addr1}
+| | And Set Interface State | ${dut1_node} | ${dut1s_vxlan1} | up
+| | And Set Interface State | ${dut1_node} | ${dut1s_vxlan2} | up
+| | And Set Interface State | ${dut2_node} | ${dut2s_vxlan1} | up
+| | And Set Interface State | ${dut2_node} | ${dut2s_vxlan2} | up
+| | And Vpp Node Interfaces Ready Wait | ${dut1_node}
+| | And Vpp Node Interfaces Ready Wait | ${dut2_node}
+| | And Bridge domain on DUT node is created | ${dut1_node} | ${bd_id1}
+| | And Interface is added to bridge domain | ${dut1_node} | ${dut1_to_tg_if1}
+| | ...                                     | ${bd_id1}
+| | And Interface is added to bridge domain | ${dut1_node} | ${dut1_to_tg_if2}
+| | ...                                     | ${bd_id1}
+| | And Interface is added to bridge domain | ${dut1_node} | ${dut1s_vxlan1}
+| | ...                                     | ${bd_id1} | ${shg1}
+| | And Interface is added to bridge domain | ${dut1_node} | ${dut1s_vxlan2}
+| | ...                                     | ${bd_id1} | ${shg2}
+| | And Bridge domain on DUT node is created | ${dut2_node} | ${bd_id2}
+| | And Interface is added to bridge domain | ${dut2_node} | ${dut2_to_tg_if1}
+| | ...                                     | ${bd_id2}
+| | And Interface is added to bridge domain | ${dut2_node} | ${dut2s_vxlan1}
+| | ...                                     | ${bd_id2}
+| | And Bridge domain on DUT node is created | ${dut2_node} | ${bd_id3}
+| | And Interface is added to bridge domain | ${dut2_node} | ${dut2_to_tg_if2}
+| | ...                                     | ${bd_id3}
+| | And Interface is added to bridge domain | ${dut2_node} | ${dut2s_vxlan2}
+| | ...                                     | ${bd_id3}
+| | Then Send and receive ICMPv4 bidirectionally | ${tg_node}
+| | ...                                          | ${tg_to_dut1_if1}
+| | ...                                          | ${tg_to_dut2_if1}
+| | And Send and receive ICMPv4 bidirectionally | ${tg_node}
+| | ...                                         | ${tg_to_dut1_if1}
+| | ...                                         | ${tg_to_dut2_if2}
+| | And Send and receive ICMPv4 bidirectionally | ${tg_node}
+| | ...                                         | ${tg_to_dut1_if2}
+| | ...                                         | ${tg_to_dut2_if1}
+| | And Send and receive ICMPv4 bidirectionally | ${tg_node}
+| | ...                                         | ${tg_to_dut1_if2}
+| | ...                                         | ${tg_to_dut2_if2}
+| | And Send and receive ICMPv4 bidirectionally | ${tg_node}
+| | ...                                         | ${tg_to_dut2_if1}
+| | ...                                         | ${tg_to_dut2_if2}
+
+| VPP can pass IPv6 bidirectionally through VXLAN using bridge domain
+| | [Documentation] | Create VXLAN interface on both VPP nodes. Create one
+| | ...             | bridge domain (learning enabled) on both VPP nodes, add
+| | ...             | VXLAN interface and interface toward TG to bridge domains
+| | ...             | and check traffic bidirectionally.
+| | [Tags] | 3_NODE_DOUBLE_LINK_TOPO
+| | Given Path for 3-node testing is set
+| | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['DUT2']} | ${nodes['TG']}
+| | And Interfaces in 3-node path are up
+| | And Set Interface Address | ${dut1_node} | ${dut1_to_dut2} | ${ip6_addr1}
+| | ...                       | ${ip6_prefix}
+| | And Set Interface Address | ${dut2_node} | ${dut2_to_dut1} | ${ip6_addr2}
+| | ...                       | ${ip6_prefix}
+| | And VPP IP Probe | ${dut1_node} | ${dut1_to_dut2} | ${ip6_addr2}
+| | And VPP IP Probe | ${dut2_node} | ${dut2_to_dut1} | ${ip6_addr1}
+| | ${dut1s_vxlan}= | When Create VXLAN interface | ${dut1_node} | ${vni_1}
+| | | ...                                         | ${ip6_addr1} | ${ip6_addr2}
+| | And  Interfaces are added to BD | ${dut1_node} | ${bd_id1}
+| | ...                             | ${dut1_to_tg} | ${dut1s_vxlan}
+| | ${dut2s_vxlan}= | And Create VXLAN interface | ${dut2_node} | ${vni_1}
+| | | ...                                        | ${ip6_addr2} | ${ip6_addr1}
+| | And  Interfaces are added to BD | ${dut2_node} | ${bd_id1}
+| | ...                             | ${dut2_to_tg} | ${dut2s_vxlan}
+| | Then Send and receive ICMPv6 bidirectionally
+| | ... | ${tg_node} | ${tg_to_dut1} | ${tg_to_dut2}
+
+| Vpp forwards ICMPv6 packets through VXLAN tunnels in the same split-horizon group of one L2 bridge domain
+| | [Documentation] | Create two VXLAN interfaces on both VPP nodes. Create one
+| | ...             | bridge domain (learning enabled) on the first VPP node,
+| | ...             | add VXLAN interfaces to the same split-horizon group of
+| | ...             | the bridge domain where interfaces toward TG are added to.
+| | ...             | Create two bridge domains (learning enabled) on the second
+| | ...             | VPP node and add one VXLAN interface and one interface
+| | ...             | toward TG to each of them. Check traffic bidirectionally.
+| | [Tags] | 3_NODE_DOUBLE_LINK_TOPO | EXPECTED_FAILING
+| | Given Path for 3-node BD-SHG testing is set | ${nodes['TG']}
+| | ...                                         | ${nodes['DUT1']}
+| | ...                                         | ${nodes['DUT2']}
+| | And Interfaces in 3-node BD-SHG testing are up
+| | And Set Interface Address | ${dut1_node} | ${dut1_to_dut2} | ${ip6_addr1}
+| | ...                       | ${ip6_prefix}
+| | And Set Interface Address | ${dut2_node} | ${dut2_to_dut1} | ${ip6_addr2}
+| | ...                       | ${ip6_prefix}
+| | And VPP IP Probe | ${dut1_node} | ${dut1_to_dut2} | ${ip6_addr2}
+| | And VPP IP Probe | ${dut2_node} | ${dut2_to_dut1} | ${ip6_addr1}
+| | ${dut1s_vxlan1}= | When Create VXLAN interface | ${dut1_node} | ${vni_1}
+| | | ...                                          | ${ip6_addr1} | ${ip6_addr2}
+| | ${dut1s_vxlan2}= | And Create VXLAN interface | ${dut1_node} | ${vni_2}
+| | | ...                                         | ${ip6_addr1} | ${ip6_addr2}
+| | ${dut2s_vxlan1}= | And Create VXLAN interface | ${dut2_node} | ${vni_1}
+| | | ...                                         | ${ip6_addr2} | ${ip6_addr1}
+| | ${dut2s_vxlan2}= | And Create VXLAN interface | ${dut2_node} | ${vni_2}
+| | | ...                                         | ${ip6_addr2} | ${ip6_addr1}
+| | And Set Interface State | ${dut1_node} | ${dut1s_vxlan1} | up
+| | And Set Interface State | ${dut1_node} | ${dut1s_vxlan2} | up
+| | And Set Interface State | ${dut2_node} | ${dut2s_vxlan1} | up
+| | And Set Interface State | ${dut2_node} | ${dut2s_vxlan2} | up
+| | And Vpp Node Interfaces Ready Wait | ${dut1_node}
+| | And Vpp Node Interfaces Ready Wait | ${dut2_node}
+| | And Bridge domain on DUT node is created | ${dut1_node} | ${bd_id1}
+| | And Interface is added to bridge domain | ${dut1_node} | ${dut1_to_tg_if1}
+| | ...                                     | ${bd_id1}
+| | And Interface is added to bridge domain | ${dut1_node} | ${dut1_to_tg_if2}
+| | ...                                     | ${bd_id1}
+| | And Interface is added to bridge domain | ${dut1_node} | ${dut1s_vxlan1}
+| | ...                                     | ${bd_id1} | ${shg1}
+| | And Interface is added to bridge domain | ${dut1_node} | ${dut1s_vxlan2}
+| | ...                                     | ${bd_id1} | ${shg1}
+| | And Bridge domain on DUT node is created | ${dut2_node} | ${bd_id2}
+| | And Interface is added to bridge domain | ${dut2_node} | ${dut2_to_tg_if1}
+| | ...                                     | ${bd_id2}
+| | And Interface is added to bridge domain | ${dut2_node} | ${dut2s_vxlan1}
+| | ...                                     | ${bd_id2}
+| | And Bridge domain on DUT node is created | ${dut2_node} | ${bd_id3}
+| | And Interface is added to bridge domain | ${dut2_node} | ${dut2_to_tg_if2}
+| | ...                                     | ${bd_id3}
+| | And Interface is added to bridge domain | ${dut2_node} | ${dut2s_vxlan2}
+| | ...                                     | ${bd_id3}
+| | Then Send and receive ICMPv6 bidirectionally | ${tg_node}
+| | ...                                          | ${tg_to_dut1_if1}
+| | ...                                          | ${tg_to_dut2_if1}
+| | And Send and receive ICMPv6 bidirectionally | ${tg_node}
+| | ...                                         | ${tg_to_dut1_if1}
+| | ...                                         | ${tg_to_dut2_if2}
+| | And Send and receive ICMPv6 bidirectionally | ${tg_node}
+| | ...                                         | ${tg_to_dut1_if2}
+| | ...                                         | ${tg_to_dut2_if1}
+| | And Send and receive ICMPv6 bidirectionally | ${tg_node}
+| | ...                                         | ${tg_to_dut1_if2}
+| | ...                                         | ${tg_to_dut2_if2}
+| | And Run Keyword And Expect Error | ICMP echo Rx timeout
+| | ...                              | Send and receive ICMPv6 bidirectionally
+| | | ...                            | ${tg_node} | ${tg_to_dut2_if1}
+| | | ...                            | ${tg_to_dut2_if2}
+
+| Vpp forwards ICMPv6 packets through VXLAN tunnels in different split-horizon groups of one L2 bridge domain
+| | [Documentation] | Create two VXLAN interfaces on both VPP nodes. Create one
+| | ...             | bridge domain (learning enabled) on the first VPP node,
+| | ...             | add VXLAN interfaces to different split-horizon groups of
+| | ...             | the bridge domain where interfaces toward TG are added to.
+| | ...             | Create two bridge domains (learning enabled) on the second
+| | ...             | VPP node and add one VXLAN interface and one interface
+| | ...             | toward TG to each of them. Check traffic bidirectionally.
+| | [Tags] | 3_NODE_DOUBLE_LINK_TOPO | EXPECTED_FAILING
+| | Given Path for 3-node BD-SHG testing is set | ${nodes['TG']}
+| | ...                                         | ${nodes['DUT1']}
+| | ...                                         | ${nodes['DUT2']}
+| | And Interfaces in 3-node BD-SHG testing are up
+| | And Set Interface Address | ${dut1_node} | ${dut1_to_dut2} | ${ip6_addr1}
+| | ...                       | ${ip6_prefix}
+| | And Set Interface Address | ${dut2_node} | ${dut2_to_dut1} | ${ip6_addr2}
+| | ...                       | ${ip6_prefix}
+| | And VPP IP Probe | ${dut1_node} | ${dut1_to_dut2} | ${ip6_addr2}
+| | And VPP IP Probe | ${dut2_node} | ${dut2_to_dut1} | ${ip6_addr1}
+| | ${dut1s_vxlan1}= | When Create VXLAN interface | ${dut1_node} | ${vni_1}
+| | | ...                                          | ${ip6_addr1} | ${ip6_addr2}
+| | ${dut1s_vxlan2}= | And Create VXLAN interface | ${dut1_node} | ${vni_2}
+| | | ...                                         | ${ip6_addr1} | ${ip6_addr2}
+| | ${dut2s_vxlan1}= | And Create VXLAN interface | ${dut2_node} | ${vni_1}
+| | | ...                                         | ${ip6_addr2} | ${ip6_addr1}
+| | ${dut2s_vxlan2}= | And Create VXLAN interface | ${dut2_node} | ${vni_2}
+| | | ...                                         | ${ip6_addr2} | ${ip6_addr1}
+| | And Set Interface State | ${dut1_node} | ${dut1s_vxlan1} | up
+| | And Set Interface State | ${dut1_node} | ${dut1s_vxlan2} | up
+| | And Set Interface State | ${dut2_node} | ${dut2s_vxlan1} | up
+| | And Set Interface State | ${dut2_node} | ${dut2s_vxlan2} | up
+| | And Vpp Node Interfaces Ready Wait | ${dut1_node}
+| | And Vpp Node Interfaces Ready Wait | ${dut2_node}
+| | And Bridge domain on DUT node is created | ${dut1_node} | ${bd_id1}
+| | And Interface is added to bridge domain | ${dut1_node} | ${dut1_to_tg_if1}
+| | ...                                     | ${bd_id1}
+| | And Interface is added to bridge domain | ${dut1_node} | ${dut1_to_tg_if2}
+| | ...                                     | ${bd_id1}
+| | And Interface is added to bridge domain | ${dut1_node} | ${dut1s_vxlan1}
+| | ...                                     | ${bd_id1} | ${shg1}
+| | And Interface is added to bridge domain | ${dut1_node} | ${dut1s_vxlan2}
+| | ...                                     | ${bd_id1} | ${shg2}
+| | And Bridge domain on DUT node is created | ${dut2_node} | ${bd_id2}
+| | And Interface is added to bridge domain | ${dut2_node} | ${dut2_to_tg_if1}
+| | ...                                     | ${bd_id2}
+| | And Interface is added to bridge domain | ${dut2_node} | ${dut2s_vxlan1}
+| | ...                                     | ${bd_id2}
+| | And Bridge domain on DUT node is created | ${dut2_node} | ${bd_id3}
+| | And Interface is added to bridge domain | ${dut2_node} | ${dut2_to_tg_if2}
+| | ...                                     | ${bd_id3}
+| | And Interface is added to bridge domain | ${dut2_node} | ${dut2s_vxlan2}
+| | ...                                     | ${bd_id3}
+| | Then Send and receive ICMPv6 bidirectionally | ${tg_node}
+| | ...                                          | ${tg_to_dut1_if1}
+| | ...                                          | ${tg_to_dut2_if1}
+| | And Send and receive ICMPv6 bidirectionally | ${tg_node}
+| | ...                                         | ${tg_to_dut1_if1}
+| | ...                                         | ${tg_to_dut2_if2}
+| | And Send and receive ICMPv6 bidirectionally | ${tg_node}
+| | ...                                         | ${tg_to_dut1_if2}
+| | ...                                         | ${tg_to_dut2_if1}
+| | And Send and receive ICMPv6 bidirectionally | ${tg_node}
+| | ...                                         | ${tg_to_dut1_if2}
+| | ...                                         | ${tg_to_dut2_if2}
+| | And Send and receive ICMPv6 bidirectionally | ${tg_node}
+| | ...                                         | ${tg_to_dut2_if1}
+| | ...                                         | ${tg_to_dut2_if2}