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-rwxr-xr-xbootstrap-centos.sh2
-rwxr-xr-xbootstrap-ubuntu.sh2
-rw-r--r--resources/libraries/python/QemuUtils.py29
-rw-r--r--resources/libraries/python/ssh.py70
-rw-r--r--resources/libraries/robot/vxlan.robot47
-rwxr-xr-xresources/traffic_scripts/send_vxlan_check_vxlan.py106
-rw-r--r--resources/traffic_scripts/vxlan.py17
-rw-r--r--tests/func/vhost/eth2p-ethip4-l2bdbase-vhost-clinent-reconnect-2vm-func.robot231
8 files changed, 462 insertions, 42 deletions
diff --git a/bootstrap-centos.sh b/bootstrap-centos.sh
index 6bec72060c..b0b9562274 100755
--- a/bootstrap-centos.sh
+++ b/bootstrap-centos.sh
@@ -33,7 +33,7 @@ VIRL_RELEASE=$(cat ${SCRIPT_DIR}/VIRL_RELEASE_CENTOS)
SSH_OPTIONS="-i ${VIRL_PKEY} -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o BatchMode=yes -o LogLevel=error"
-TEST_GROUPS=("l2bd,dhcp,gre,honeycomb,l2xc,lisp,softwire" "cop,telemetry,ipsec,ipv6,rpf,tap,vrf" "fds,iacl,ipv4,policer,vlan,vxlan")
+TEST_GROUPS=("l2bd,dhcp,gre,honeycomb,l2xc,lisp,softwire" "cop,telemetry,ipsec,ipv6,rpf,tap,vrf" "fds,iacl,ipv4,policer,vlan,vxlan,vhost")
SUITE_PATH="tests.func"
# Create tmp dir
diff --git a/bootstrap-ubuntu.sh b/bootstrap-ubuntu.sh
index dfd20a45cd..3e130f83f9 100755
--- a/bootstrap-ubuntu.sh
+++ b/bootstrap-ubuntu.sh
@@ -35,7 +35,7 @@ VIRL_RELEASE=$(cat ${SCRIPT_DIR}/VIRL_RELEASE_UBUNTU)
SSH_OPTIONS="-i ${VIRL_PKEY} -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o BatchMode=yes -o LogLevel=error"
-TEST_GROUPS=("l2bd,dhcp,gre,honeycomb,l2xc,lisp,softwire" "cop,telemetry,ipsec,ipv6,rpf,tap,vrf" "fds,iacl,ipv4,policer,vlan,vxlan")
+TEST_GROUPS=("l2bd,dhcp,gre,honeycomb,l2xc,lisp,softwire" "cop,telemetry,ipsec,ipv6,rpf,tap,vrf" "fds,iacl,ipv4,policer,vlan,vxlan,vhost")
SUITE_PATH="tests.func"
# Create tmp dir
diff --git a/resources/libraries/python/QemuUtils.py b/resources/libraries/python/QemuUtils.py
index 244ece2258..1664b0b916 100644
--- a/resources/libraries/python/QemuUtils.py
+++ b/resources/libraries/python/QemuUtils.py
@@ -34,6 +34,8 @@ class QemuUtils(object):
self._qmp_sock = '/tmp/qmp{0}.sock'.format(self._qemu_id)
# QEMU Guest Agent socket
self._qga_sock = '/tmp/qga{0}.sock'.format(self._qemu_id)
+ # QEMU PID file
+ self._pid_file = '/tmp/qemu{0}.pid'.format(self._qemu_id)
self._qemu_opt = {}
# Default 1 CPU.
self._qemu_opt['smp'] = '-smp 1,sockets=1,cores=1,threads=1'
@@ -41,11 +43,11 @@ class QemuUtils(object):
# management interface.
self._qemu_opt['options'] = '-cpu host -daemonize -enable-kvm ' \
'-machine pc,accel=kvm,usb=off,mem-merge=off ' \
- '-net nic,macaddr=52:54:00:00:00:{0:02x} -balloon none'\
+ '-net nic,macaddr=52:54:00:00:{0:02x}:ff -balloon none'\
.format(self._qemu_id)
- self._qemu_opt['ssh_fwd_port'] = 10022
+ self._qemu_opt['ssh_fwd_port'] = 10021 + qemu_id
# Default serial console port
- self._qemu_opt['serial_port'] = 4556
+ self._qemu_opt['serial_port'] = 4555 + qemu_id
# Default 512MB virtual RAM
self._qemu_opt['mem_size'] = 512
# Default huge page mount point, required for Vhost-user interfaces.
@@ -205,8 +207,8 @@ class QemuUtils(object):
chardev += ',server'
self._qemu_opt['options'] += chardev
# Create Vhost-user network backend.
- netdev = ' -netdev vhost-user,id=vhost{0},chardev=char{0},'\
- 'queues={1}'.format(self._vhost_id, self._qemu_opt['queues'])
+ netdev = (' -netdev vhost-user,id=vhost{0},chardev=char{0},queues={1}'
+ .format(self._vhost_id, self._qemu_opt['queues']))
self._qemu_opt['options'] += netdev
# If MAC is not specified use auto-generated MAC address based on
# template 52:54:00:00:<qemu_id>:<vhost_id>, e.g. vhost1 MAC of QEMU
@@ -525,12 +527,14 @@ class QemuUtils(object):
'-device isa-serial,chardev=qga0'.format(self._qga_sock)
# Graphic setup
graphic = '-monitor none -display none -vga none'
+ # PID file
+ pid = '-pidfile {}'.format(self._pid_file)
# Run QEMU
- cmd = '{0} {1} {2} {3} {4} {5} {6} {7} {8} {9}'.format(
+ cmd = '{0} {1} {2} {3} {4} {5} {6} {7} {8} {9} {10}'.format(
self._qemu_bin, self._qemu_opt.get('smp'), mem, ssh_fwd,
self._qemu_opt.get('options'),
- drive, qmp, serial, qga, graphic)
+ drive, qmp, serial, qga, graphic, pid)
(ret_code, _, stderr) = self._ssh.exec_command_sudo(cmd, timeout=300)
if int(ret_code) != 0:
logger.debug('QEMU start failed {0}'.format(stderr))
@@ -578,9 +582,18 @@ class QemuUtils(object):
def qemu_kill(self):
"""Kill qemu process."""
- # TODO: add PID storage so that we can kill specific PID
# Note: in QEMU start phase there are 3 QEMU processes because we
# daemonize QEMU
+ self._ssh.exec_command_sudo('chmod +r {}'.format(self._pid_file))
+ self._ssh.exec_command_sudo('kill -SIGKILL $(cat {})'
+ .format(self._pid_file))
+ # Delete PID file
+ cmd = 'rm -f {}'.format(self._pid_file)
+ self._ssh.exec_command_sudo(cmd)
+
+ def qemu_kill_all(self, node=None):
+ if node:
+ self.qemu_set_node(node)
self._ssh.exec_command_sudo('pkill -SIGKILL qemu')
def qemu_clear_socks(self):
diff --git a/resources/libraries/python/ssh.py b/resources/libraries/python/ssh.py
index 961f7e2ee8..0009bde59b 100644
--- a/resources/libraries/python/ssh.py
+++ b/resources/libraries/python/ssh.py
@@ -56,40 +56,46 @@ class SSH(object):
return hash(frozenset([node['host'], node['port']]))
- def connect(self, node):
+ def connect(self, node, attempts=5):
"""Connect to node prior to running exec_command or scp.
If there already is a connection to the node, this method reuses it.
"""
- self._node = node
- node_hash = self._node_hash(node)
- if node_hash in SSH.__existing_connections:
- self._ssh = SSH.__existing_connections[node_hash]
- logger.debug('reusing ssh: {0}'.format(self._ssh))
- else:
- start = time()
- pkey = None
- if 'priv_key' in node:
- pkey = RSAKey.from_private_key(
- StringIO.StringIO(node['priv_key']))
-
- self._ssh = paramiko.SSHClient()
- self._ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
-
- self._ssh.connect(node['host'], username=node['username'],
- password=node.get('password'), pkey=pkey,
- port=node['port'])
-
- self._ssh.get_transport().set_keepalive(10)
-
- SSH.__existing_connections[node_hash] = self._ssh
-
- logger.trace('connect took {} seconds'.format(time() - start))
- logger.debug('new ssh: {0}'.format(self._ssh))
-
- logger.debug('Connect peer: {0}'.
- format(self._ssh.get_transport().getpeername()))
- logger.debug('Connections: {0}'.format(str(SSH.__existing_connections)))
+ try:
+ self._node = node
+ node_hash = self._node_hash(node)
+ if node_hash in SSH.__existing_connections:
+ self._ssh = SSH.__existing_connections[node_hash]
+ logger.debug('reusing ssh: {0}'.format(self._ssh))
+ else:
+ start = time()
+ pkey = None
+ if 'priv_key' in node:
+ pkey = RSAKey.from_private_key(
+ StringIO.StringIO(node['priv_key']))
+
+ self._ssh = paramiko.SSHClient()
+ self._ssh.set_missing_host_key_policy(paramiko.AutoAddPolicy())
+
+ self._ssh.connect(node['host'], username=node['username'],
+ password=node.get('password'), pkey=pkey,
+ port=node['port'])
+
+ self._ssh.get_transport().set_keepalive(10)
+
+ SSH.__existing_connections[node_hash] = self._ssh
+
+ logger.trace('connect took {} seconds'.format(time() - start))
+ logger.debug('new ssh: {0}'.format(self._ssh))
+
+ logger.debug('Connect peer: {0}'.
+ format(self._ssh.get_transport().getpeername()))
+ logger.debug('Connections: {0}'.format(str(SSH.__existing_connections)))
+ except:
+ if attempts > 0:
+ self._reconnect(attempts-1)
+ else:
+ raise
def disconnect(self, node):
"""Close SSH connection to the node.
@@ -104,12 +110,12 @@ class SSH(object):
ssh = SSH.__existing_connections.pop(node_hash)
ssh.close()
- def _reconnect(self):
+ def _reconnect(self, attempts=0):
"""Close the SSH connection and open it again."""
node = self._node
self.disconnect(node)
- self.connect(node)
+ self.connect(node, attempts)
logger.debug('Reconnecting peer done: {}'.
format(self._ssh.get_transport().getpeername()))
diff --git a/resources/libraries/robot/vxlan.robot b/resources/libraries/robot/vxlan.robot
index 0b53c85494..36a31584d0 100644
--- a/resources/libraries/robot/vxlan.robot
+++ b/resources/libraries/robot/vxlan.robot
@@ -94,3 +94,50 @@
| | Set Test Variable | ${dut1s_vlan_index}
| | Set Test Variable | ${dut2s_vlan_name}
| | Set Test Variable | ${dut2s_vlan_index}
+
+| Send VXLAN receive VXLAN Packet
+| | [Documentation] | Send VXLAN encapsulated Ethernet frame and check \
+| | ... | received one.
+| | ...
+| | ... | *Arguments:*
+| | ... | - tg_node - Node where to run traffic script. Type: dictionary
+| | ... | - tx_if - Interface from where send VXLAN packet. Type: string
+| | ... | - rx_if - Interface where receive VXLAN packet. Type: string
+| | ... | - tx_src_mac - Source MAC address of sent packet. Type: string
+| | ... | - tx_dst_mac - Destination MAC address of sent packet. Type: string
+| | ... | - tx_src_ip - Source IP address of sent VXLAN packet. Type: string
+| | ... | - tx_dst_ip - Destination IP address of sent VXLAN packet.
+| | ... | Type: string
+| | ... | - tx_vni - VNI of sent VXLAN packet. Type: string
+| | ... | - rx_src_ip - Source IP address of received VXLAN packet. Type: string
+| | ... | - rx_dst_ip - Destination IP address of received VXLAN packet.
+| | ... | Type: string
+| | ... | - rx_vni - VNI of received VXLAN packet. Type: string
+| | ...
+| | ... | *Return:*
+| | ... | - No value returned
+| | ...
+| | ... | *Example:*
+| | ...
+| | ... | \| Send VXLAN receive VXLAN Packet \| ${tg_node} \| port4 \| port4 \
+| | ... | \| fa:16:3e:6d:f9:c5 \| fa:16:3e:e6:6d:9a \| 192.168.0.1 \
+| | ... | \| 192.168.0.2 \| ${101} \| 192.168.0.2 \| 192.168.0.1 \| ${102} \|
+| | ...
+| | [Arguments] | ${tg_node} | ${tx_if} | ${rx_if}
+| | ... | ${tx_src_mac} | ${tx_dst_mac}
+| | ... | ${tx_src_ip} | ${tx_dst_ip} | ${tx_vni}
+| | ... | ${rx_src_ip} | ${rx_dst_ip} | ${rx_vni}
+| | ${tx_if_name}= | Get interface name | ${tg_node} | ${tx_if}
+| | ${rx_if_name}= | Get interface name | ${tg_node} | ${rx_if}
+| | ${args}= | Catenate
+| | ... | --tx_if ${tx_if_name}
+| | ... | --rx_if ${rx_if_name}
+| | ... | --tx_src_mac ${tx_src_mac}
+| | ... | --tx_dst_mac ${tx_dst_mac}
+| | ... | --tx_src_ip ${tx_src_ip}
+| | ... | --tx_dst_ip ${tx_dst_ip}
+| | ... | --tx_vni ${tx_vni}
+| | ... | --rx_src_ip ${rx_src_ip}
+| | ... | --rx_dst_ip ${rx_dst_ip}
+| | ... | --rx_vni ${rx_vni}
+| | Run Traffic Script On Node | send_vxlan_check_vxlan.py | ${tg_node} | ${args}
diff --git a/resources/traffic_scripts/send_vxlan_check_vxlan.py b/resources/traffic_scripts/send_vxlan_check_vxlan.py
new file mode 100755
index 0000000000..3bf273d17a
--- /dev/null
+++ b/resources/traffic_scripts/send_vxlan_check_vxlan.py
@@ -0,0 +1,106 @@
+#!/usr/bin/env python
+# Copyright (c) 2016 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.
+
+"""Traffic script that sends an IP ICMPv4/ICMPv6 packet from one interface to
+the other one. Dot1q or Dot1ad tagging of the ethernet frame can be set.
+"""
+
+import sys
+
+import vxlan
+
+from scapy.layers.inet import IP, UDP, Raw
+from scapy.layers.l2 import Ether
+from resources.libraries.python.PacketVerifier import RxQueue, TxQueue
+from resources.libraries.python.TrafficScriptArg import TrafficScriptArg
+
+
+def main():
+ """Send IP ICMPv4/ICMPv6 packet from one traffic generator interface to
+ the other one. Dot1q or Dot1ad tagging of the ethernet frame can be set.
+ """
+ args = TrafficScriptArg(['tx_src_mac', 'tx_dst_mac', 'tx_src_ip',
+ 'tx_dst_ip', 'tx_vni', 'rx_src_ip', 'rx_dst_ip',
+ 'rx_vni'])
+
+ tx_if = args.get_arg('tx_if')
+ rx_if = args.get_arg('rx_if')
+ tx_src_mac = args.get_arg('tx_src_mac')
+ tx_dst_mac = args.get_arg('tx_dst_mac')
+ tx_src_ip = args.get_arg('tx_src_ip')
+ tx_dst_ip = args.get_arg('tx_dst_ip')
+ tx_vni = args.get_arg('tx_vni')
+ rx_src_ip = args.get_arg('rx_src_ip')
+ rx_dst_ip = args.get_arg('rx_dst_ip')
+ rx_vni = args.get_arg('rx_vni')
+
+ rxq = RxQueue(rx_if)
+ txq = TxQueue(tx_if)
+
+ sent_packets = []
+
+ tx_pkt_p = (Ether(src='02:00:00:00:00:01', dst='02:00:00:00:00:02') /
+ IP(src='192.168.1.1', dst='192.168.1.2') /
+ UDP(sport=12345, dport=1234) /
+ Raw('rew data'))
+
+ pkt_raw = (Ether(src=tx_src_mac, dst=tx_dst_mac) /
+ IP(src=tx_src_ip, dst=tx_dst_ip) /
+ UDP(sport=23456) /
+ vxlan.VXLAN(vni=int(tx_vni)) /
+ tx_pkt_p)
+
+ # Send created packet on one interface and receive on the other
+ sent_packets.append(pkt_raw)
+ txq.send(pkt_raw)
+
+ ether = rxq.recv(2, ignore=sent_packets)
+
+ # Check whether received packet contains layers Ether, IP and VXLAN
+ if ether is None:
+ raise RuntimeError('Packet Rx timeout')
+ ip = ether.payload
+
+ if ip.src != rx_src_ip:
+ raise RuntimeError('IP src mismatch {} != {}'.format(ip.src, rx_src_ip))
+ if ip.dst != rx_dst_ip:
+ raise RuntimeError('IP dst mismatch {} != {}'.format(ip.dst, rx_dst_ip))
+ if ip.payload.dport != 4789:
+ raise RuntimeError('VXLAN UDP port mismatch {} != {}'.
+ format(ip.payload.dport, 4789))
+ vxlan_pkt = ip.payload.payload
+
+ if int(vxlan_pkt.vni) != int(rx_vni):
+ raise RuntimeError('vxlan mismatch')
+ rx_pkt_p = vxlan_pkt.payload
+
+ if rx_pkt_p.src != tx_pkt_p.src:
+ raise RuntimeError('RX encapsulated MAC src mismatch {} != {}'.
+ format(rx_pkt_p.src, tx_pkt_p.src))
+ if rx_pkt_p.dst != tx_pkt_p.dst:
+ raise RuntimeError('RX encapsulated MAC dst mismatch {} != {}'.
+ format(rx_pkt_p.dst, tx_pkt_p.dst))
+ if rx_pkt_p['IP'].src != tx_pkt_p['IP'].src:
+ raise RuntimeError('RX encapsulated IP src mismatch {} != {}'.
+ format(rx_pkt_p['IP'].src, tx_pkt_p['IP'].src))
+ if rx_pkt_p['IP'].dst != tx_pkt_p['IP'].dst:
+ raise RuntimeError('RX encapsulated IP dst mismatch {} != {}'.
+ format(rx_pkt_p['IP'].dst, tx_pkt_p['IP'].dst))
+
+ # TODO: verify inner Ether()
+
+ sys.exit(0)
+
+if __name__ == "__main__":
+ main()
diff --git a/resources/traffic_scripts/vxlan.py b/resources/traffic_scripts/vxlan.py
new file mode 100644
index 0000000000..bf86f179a8
--- /dev/null
+++ b/resources/traffic_scripts/vxlan.py
@@ -0,0 +1,17 @@
+from scapy.fields import BitField, XByteField, X3BytesField
+from scapy.packet import Packet, bind_layers
+from scapy.layers.l2 import Ether
+from scapy.layers.inet import UDP
+
+
+class VXLAN(Packet):
+ name = "VXLAN"
+ fields_desc = [BitField("flags", 0x08000000, 32),
+ X3BytesField("vni", 0),
+ XByteField("reserved", 0x00)]
+
+ def mysummary(self):
+ return self.sprintf("VXLAN (vni=%VXLAN.vni%)")
+
+bind_layers(UDP, VXLAN, dport=4789)
+bind_layers(VXLAN, Ether)
diff --git a/tests/func/vhost/eth2p-ethip4-l2bdbase-vhost-clinent-reconnect-2vm-func.robot b/tests/func/vhost/eth2p-ethip4-l2bdbase-vhost-clinent-reconnect-2vm-func.robot
new file mode 100644
index 0000000000..84c3da8a50
--- /dev/null
+++ b/tests/func/vhost/eth2p-ethip4-l2bdbase-vhost-clinent-reconnect-2vm-func.robot
@@ -0,0 +1,231 @@
+# Copyright (c) 2016 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/default.robot
+| Resource | resources/libraries/robot/bridge_domain.robot
+| Resource | resources/libraries/robot/testing_path.robot
+| Resource | resources/libraries/robot/qemu.robot
+| Resource | resources/libraries/robot/vxlan.robot
+| Library | resources.libraries.python.Trace
+| Force Tags | HW_ENV | VM_ENV | 2_NODE_DOUBLE_LINK_TOPO | VPP_VM_ENV
+| Test Setup | Func Test Setup
+| Test Teardown | Run Keywords
+| ... | resources.libraries.python.QemuUtils.Qemu Kill All | ${dut_node} | AND
+| ... | Func Test Teardown
+| Documentation | *Vhost-User Interface Traffic Tests*
+| ... | *[Top] Network Topologies:* TG=DUT1 2-node topology with two links
+| ... | between nodes.
+| ... | *[Enc] Packet Encapsulations:* Eth-IPv4-VXLAN-ETH-IP on TG-DUT link.
+| ... | ETH-IP on VirtualEthernet-VM interface.
+| ... | *[Cfg] DUT configuration:* On DUT is running 2 VM with 2 vhost-user
+| ... | interface on each VM. DUT is configured with VXLAN and vhost-user
+| ... | interfaces in bridge-domain (L2BD).
+| ... | *[Cfg] VM configuration:* VM has both vhost-user interfaces added into
+| ... | Linux Bridge.
+| ... | *[Ver] TG verification:*
+| ... | VXLAN packet is send to DUT where is decapsulated and send bridged to
+| ... | vhost-user inteface. VM forwards frame to its second interface and VPP
+| ... | encapsulates it to another VXLAN tunnel. Packets
+| ... | are sent and received by TG on link to DUT.
+
+*** Variables ***
+| ${tg_if1_ip}= | 192.168.0.1
+| ${dut_if1_ip}= | 192.168.0.2
+| ${prefix_length}= | ${24}
+
+| ${sock_vm1_1}= | /tmp/sock1
+| ${sock_vm1_2}= | /tmp/sock2
+| ${sock_vm2_1}= | /tmp/sock3
+| ${sock_vm2_2}= | /tmp/sock4
+
+*** Test Cases ***
+| TC01: Qemu reconnects to VPPs vhost-user when Qemu is killed and restarted
+| | Given Path for 2-node testing is set
+| | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['TG']}
+| | And Interfaces in 2-node path are up
+| | And Set Interface Address | ${dut_node} | ${dut_to_tg_if1} | ${dut_if1_ip}
+| | ... | ${prefix_length}
+| | And Add IP Neighbor | ${dut_node} | ${dut_to_tg_if1} | ${tg_if1_ip}
+| | ... | ${tg_to_dut_if1_mac}
+| | ${vxlan1}= | And Create VXLAN interface | ${dut_node} | ${101}
+| | ... | ${dut_if1_ip} | ${tg_if1_ip}
+| | ${vxlan2}= | And Create VXLAN interface | ${dut_node} | ${102}
+| | ... | ${dut_if1_ip} | ${tg_if1_ip}
+| | ${vxlan3}= | And Create VXLAN interface | ${dut_node} | ${103}
+| | ... | ${dut_if1_ip} | ${tg_if1_ip}
+| | ${vxlan4}= | And Create VXLAN interface | ${dut_node} | ${104}
+| | ... | ${dut_if1_ip} | ${tg_if1_ip}
+| | And Set Interface State | ${dut_node} | ${vxlan1} | up
+| | And Set Interface State | ${dut_node} | ${vxlan2} | up
+| | And Set Interface State | ${dut_node} | ${vxlan3} | up
+| | And Set Interface State | ${dut_node} | ${vxlan4} | up
+| | ${vhost_if1}= | And Vpp Create Vhost User Interface
+| | ... | ${dut_node} | ${sock_vm1_1}
+| | ${vhost_if2}= | And Vpp Create Vhost User Interface
+| | ... | ${dut_node} | ${sock_vm1_2}
+| | ${vhost_if3}= | And Vpp Create Vhost User Interface
+| | ... | ${dut_node} | ${sock_vm2_1}
+| | ${vhost_if4}= | And Vpp Create Vhost User Interface
+| | ... | ${dut_node} | ${sock_vm2_2}
+| | And Set Interface State | ${dut_node} | ${vhost_if1} | up
+| | And Set Interface State | ${dut_node} | ${vhost_if2} | up
+| | And Set Interface State | ${dut_node} | ${vhost_if3} | up
+| | And Set Interface State | ${dut_node} | ${vhost_if4} | up
+| | And Vpp Add L2 Bridge Domain | ${dut_node} | ${101} | ${vxlan1}
+| | ... | ${vhost_if1}
+| | And Vpp Add L2 Bridge Domain | ${dut_node} | ${102} | ${vxlan2}
+| | ... | ${vhost_if2}
+| | And Vpp Add L2 Bridge Domain | ${dut_node} | ${103} | ${vxlan3}
+| | ... | ${vhost_if3}
+| | And Vpp Add L2 Bridge Domain | ${dut_node} | ${104} | ${vxlan4}
+| | ... | ${vhost_if4}
+| | And Setup QEMU Vhost and Run VM | ${dut_node} | ${sock_vm1_1} | ${sock_vm1_2}
+| | ... | ${1}
+| | And Setup QEMU Vhost and Run VM | ${dut_node} | ${sock_vm2_1} | ${sock_vm2_2}
+| | ... | ${2}
+| | And Check traffic through VM
+| | When Run keyword | qemu-1.Qemu Kill
+| | ${vm1}= | And Run Keyword | qemu-1.Qemu Start
+| | ${vhost_int_1}= | And Get Vhost User If Name By Sock | ${vm1}
+| | ... | ${sock_vm1_1}
+| | ${vhost_int_2}= | And Get Vhost User If Name By Sock | ${vm1}
+| | ... | ${sock_vm1_2}
+| | And Linux Add Bridge | ${vm1} | br0 | ${vhost_int_1} | ${vhost_int_2}
+| | And Set Interface State | ${vm1} | ${vhost_int_1} | up | if_type=name
+| | And Set Interface State | ${vm1} | ${vhost_int_2} | up | if_type=name
+| | Then Check traffic through VM
+
+
+| TC02: VPP reconnects to Qemu vhost-user when VPP is restarted and reconfigured
+| | [Tags] | EXPECTED_FAILING
+| | [Documentation]
+| | ... | *Failing:* Qemu doesn't support reconnect prior to version 2.7.
+| | Given Path for 2-node testing is set
+| | ... | ${nodes['TG']} | ${nodes['DUT1']} | ${nodes['TG']}
+| | And Interfaces in 2-node path are up
+| | And Set Interface Address | ${dut_node} | ${dut_to_tg_if1} | ${dut_if1_ip}
+| | ... | ${prefix_length}
+| | And Add IP Neighbor | ${dut_node} | ${dut_to_tg_if1} | ${tg_if1_ip}
+| | ... | ${tg_to_dut_if1_mac}
+| | ${vxlan1}= | And Create VXLAN interface | ${dut_node} | ${101}
+| | ... | ${dut_if1_ip} | ${tg_if1_ip}
+| | ${vxlan2}= | And Create VXLAN interface | ${dut_node} | ${102}
+| | ... | ${dut_if1_ip} | ${tg_if1_ip}
+| | ${vxlan3}= | And Create VXLAN interface | ${dut_node} | ${103}
+| | ... | ${dut_if1_ip} | ${tg_if1_ip}
+| | ${vxlan4}= | And Create VXLAN interface | ${dut_node} | ${104}
+| | ... | ${dut_if1_ip} | ${tg_if1_ip}
+| | And Set Interface State | ${dut_node} | ${vxlan1} | up
+| | And Set Interface State | ${dut_node} | ${vxlan2} | up
+| | And Set Interface State | ${dut_node} | ${vxlan3} | up
+| | And Set Interface State | ${dut_node} | ${vxlan4} | up
+| | ${vhost_if1}= | And Vpp Create Vhost User Interface | ${dut_node}
+| | ... | ${sock_vm1_1}
+| | ${vhost_if2}= | And Vpp Create Vhost User Interface | ${dut_node}
+| | ... | ${sock_vm1_2}
+| | ${vhost_if3}= | And Vpp Create Vhost User Interface | ${dut_node}
+| | ... | ${sock_vm2_1}
+| | ${vhost_if4}= | And Vpp Create Vhost User Interface | ${dut_node}
+| | ... | ${sock_vm2_2}
+| | And Set Interface State | ${dut_node} | ${vhost_if1} | up
+| | And Set Interface State | ${dut_node} | ${vhost_if2} | up
+| | And Set Interface State | ${dut_node} | ${vhost_if3} | up
+| | And Set Interface State | ${dut_node} | ${vhost_if4} | up
+| | And Vpp Add L2 Bridge Domain | ${dut_node} | ${101} | ${vxlan1}
+| | ... | ${vhost_if1}
+| | And Vpp Add L2 Bridge Domain | ${dut_node} | ${102} | ${vxlan2}
+| | ... | ${vhost_if2}
+| | And Vpp Add L2 Bridge Domain | ${dut_node} | ${103} | ${vxlan3}
+| | ... | ${vhost_if3}
+| | And Vpp Add L2 Bridge Domain | ${dut_node} | ${104} | ${vxlan4}
+| | ... | ${vhost_if4}
+| | And Setup QEMU Vhost and Run VM | ${dut_node} | ${sock_vm1_1} | ${sock_vm1_2}
+| | ... | ${1}
+| | And Setup QEMU Vhost and Run VM | ${dut_node} | ${sock_vm2_1} | ${sock_vm2_2}
+| | ... | ${2}
+| | And Check traffic through VM
+| | And Check VPP PID in Teardown
+| | When Setup All Duts ${nodes}
+| | And Save VPP PIDs
+| | And Interfaces in 2-node path are up
+| | And Set Interface Address | ${dut_node} | ${dut_to_tg_if1} | ${dut_if1_ip}
+| | ... | ${prefix_length}
+| | And Add IP Neighbor | ${dut_node} | ${dut_to_tg_if1} | ${tg_if1_ip}
+| | ... | ${tg_to_dut_if1_mac}
+| | ${vxlan1}= | And Create VXLAN interface | ${dut_node} | ${101}
+| | ... | ${dut_if1_ip} | ${tg_if1_ip}
+| | ${vxlan2}= | And Create VXLAN interface | ${dut_node} | ${102}
+| | ... | ${dut_if1_ip} | ${tg_if1_ip}
+| | ${vxlan3}= | And Create VXLAN interface | ${dut_node} | ${103}
+| | ... | ${dut_if1_ip} | ${tg_if1_ip}
+| | ${vxlan4}= | And Create VXLAN interface | ${dut_node} | ${104}
+| | ... | ${dut_if1_ip} | ${tg_if1_ip}
+| | And Set Interface State | ${dut_node} | ${vxlan1} | up
+| | And Set Interface State | ${dut_node} | ${vxlan2} | up
+| | And Set Interface State | ${dut_node} | ${vxlan3} | up
+| | And Set Interface State | ${dut_node} | ${vxlan4} | up
+| | ${vhost_if1}= | And Vpp Create Vhost User Interface | ${dut_node}
+| | ... | ${sock_vm1_1}
+| | ${vhost_if2}= | And Vpp Create Vhost User Interface | ${dut_node}
+| | ... | ${sock_vm1_2}
+| | ${vhost_if3}= | And Vpp Create Vhost User Interface | ${dut_node}
+| | ... | ${sock_vm2_1}
+| | ${vhost_if4}= | And Vpp Create Vhost User Interface | ${dut_node}
+| | ... | ${sock_vm2_2}
+| | And Set Interface State | ${dut_node} | ${vhost_if1} | up
+| | And Set Interface State | ${dut_node} | ${vhost_if2} | up
+| | And Set Interface State | ${dut_node} | ${vhost_if3} | up
+| | And Set Interface State | ${dut_node} | ${vhost_if4} | up
+| | And Vpp Add L2 Bridge Domain | ${dut_node} | ${101} | ${vxlan1}
+| | ... | ${vhost_if1}
+| | And Vpp Add L2 Bridge Domain | ${dut_node} | ${102} | ${vxlan2}
+| | ... | ${vhost_if2}
+| | And Vpp Add L2 Bridge Domain | ${dut_node} | ${103} | ${vxlan3}
+| | ... | ${vhost_if3}
+| | And Vpp Add L2 Bridge Domain | ${dut_node} | ${104} | ${vxlan4}
+| | ... | ${vhost_if4}
+| | Then Check traffic through VM
+
+
+*** Keywords ***
+| Setup QEMU Vhost and Run VM
+| | [Arguments] | ${dut_node} | ${sock1} | ${sock2} | ${qemu_id}
+| | Import Library | resources.libraries.python.QemuUtils | qemu_id=${qemu_id}
+| | ... | WITH NAME | qemu-${qemu_id}
+| | ${q_add_vhost}= | Replace Variables | qemu-${qemu_id}.Qemu Add Vhost User If
+| | ${q_set_node}= | Replace Variables | qemu-${qemu_id}.Qemu Set Node
+| | ${q_start}= | Replace Variables | qemu-${qemu_id}.Qemu Start
+| | Run keyword | ${q_set_node} | ${dut_node}
+| | Run keyword | ${q_add_vhost} | ${sock1}
+| | Run keyword | ${q_add_vhost} | ${sock2}
+| | ${vm}= | Run keyword | ${qemu_start}
+| | ${vhost1}= | Get Vhost User If Name By Sock | ${vm} | ${sock1}
+| | ${vhost2}= | Get Vhost User If Name By Sock | ${vm} | ${sock2}
+| | Linux Add Bridge | ${vm} | br0 | ${vhost1} | ${vhost2}
+| | Set Interface State | ${vm} | ${vhost1} | up | if_type=name
+| | Set Interface State | ${vm} | ${vhost2} | up | if_type=name
+| | Set Test Variable | ${qemu-${qemu_id}} | ${vm}
+
+| Check traffic through VM
+| | [Documentation] | Send VXLAN traffic through both configured VMs.
+| | Send VXLAN receive VXLAN Packet | ${tg_node}
+| | ... | ${tg_to_dut_if1} | ${tg_to_dut_if1}
+| | ... | ${tg_to_dut_if1_mac} | ${dut_to_tg_if1_mac}
+| | ... | ${tg_if1_ip} | ${dut_if1_ip} | ${101}
+| | ... | ${dut_if1_ip} | ${tg_if1_ip} | ${102}
+| | Send VXLAN receive VXLAN Packet | ${tg_node}
+| | ... | ${tg_to_dut_if1} | ${tg_to_dut_if1}
+| | ... | ${tg_to_dut_if1_mac} | ${dut_to_tg_if1_mac}
+| | ... | ${tg_if1_ip} | ${dut_if1_ip} | ${103}
+| | ... | ${dut_if1_ip} | ${tg_if1_ip} | ${104}