diff --git a/SYSTEMD.rst b/SYSTEMD.rst
index b6ed193..729fdf4 100644
--- a/SYSTEMD.rst
+++ b/SYSTEMD.rst
@@ -74,6 +74,20 @@
 
   sudo systemctl status devstack@n-cpu.service
 
+Operating on more than one unit at a time
+-----------------------------------------
+
+Systemd supports wildcarding for unit operations. To restart every
+service in devstack you can do that following::
+
+  sudo systemctl restart devstack@*
+
+Or to see the status of all Nova processes you can do::
+
+  sudo systemctl status devstack@n-*
+
+We'll eventually make the unit names a bit more meaningful so that
+it's easier to understand what you are restarting.
 
 Querying Logs
 =============
@@ -92,9 +106,13 @@
 
 Following logs for multiple services simultaneously::
 
-  journalctl -f --unit devstack@n-cpu.service --user-unit
+  journalctl -f --unit devstack@n-cpu.service --unit
   devstack@n-cond.service
 
+or you can even do wild cards to follow all the nova services::
+
+  journalctl -f --unit devstack@n-*
+
 Use higher precision time stamps::
 
   journalctl -f -o short-precise --unit devstack@n-cpu.service
@@ -138,14 +156,8 @@
 
   journalctl INSTANCE_ID=......
 
-And get all lines related to the request id or instance id.
-
-sub targets/slices
-------------------
-
-We might want to create per project slices so that it's easy to
-follow, restart all services of a single project (like swift) without
-impacting other services.
+And get all lines related to the request id or instance id. (Note:
+this work has been started at https://review.openstack.org/#/c/451525/)
 
 log colorizing
 --------------
diff --git a/doc/source/plugin-registry.rst b/doc/source/plugin-registry.rst
index cc55c0b..beb6abb 100644
--- a/doc/source/plugin-registry.rst
+++ b/doc/source/plugin-registry.rst
@@ -68,6 +68,8 @@
 ironic                                 `git://git.openstack.org/openstack/ironic <https://git.openstack.org/cgit/openstack/ironic>`__
 ironic-inspector                       `git://git.openstack.org/openstack/ironic-inspector <https://git.openstack.org/cgit/openstack/ironic-inspector>`__
 ironic-staging-drivers                 `git://git.openstack.org/openstack/ironic-staging-drivers <https://git.openstack.org/cgit/openstack/ironic-staging-drivers>`__
+ironic-ui                              `git://git.openstack.org/openstack/ironic-ui <https://git.openstack.org/cgit/openstack/ironic-ui>`__
+k8s-cloud-provider                     `git://git.openstack.org/openstack/k8s-cloud-provider <https://git.openstack.org/cgit/openstack/k8s-cloud-provider>`__
 karbor                                 `git://git.openstack.org/openstack/karbor <https://git.openstack.org/cgit/openstack/karbor>`__
 karbor-dashboard                       `git://git.openstack.org/openstack/karbor-dashboard <https://git.openstack.org/cgit/openstack/karbor-dashboard>`__
 keystone                               `git://git.openstack.org/openstack/keystone <https://git.openstack.org/cgit/openstack/keystone>`__
diff --git a/files/debs/general b/files/debs/general
index c121770..3a0e241 100644
--- a/files/debs/general
+++ b/files/debs/general
@@ -25,6 +25,7 @@
 python2.7
 python-dev
 python-gdbm # needed for testr
+python-systemd
 screen
 tar
 tcpdump
diff --git a/files/rpms/general b/files/rpms/general
index 77d2fa5..baba06b 100644
--- a/files/rpms/general
+++ b/files/rpms/general
@@ -27,6 +27,7 @@
 python-devel
 redhat-rpm-config # missing dep for gcc hardening flags, see rhbz#1217376
 screen
+systemd-python
 tar
 tcpdump
 unzip
diff --git a/functions b/functions
index f6679fd..c99e435 100644
--- a/functions
+++ b/functions
@@ -606,11 +606,13 @@
 function setup_systemd_logging {
     local conf_file=$1
     local conf_section="DEFAULT"
-    local project_var="project_name"
-    local user_var="user_name"
-    iniset $conf_file $conf_section logging_context_format_string "%(levelname)s %(name)s [%(request_id)s %("$project_var")s %("$user_var")s] %(instance)s%(message)s"
-    iniset $conf_file $conf_section logging_default_format_string "%(levelname)s %(name)s [-] %(instance)s%(color)s%(message)s"
-    iniset $conf_file $conf_section logging_debug_format_suffix "from (pid=%(process)d) %(funcName)s %(pathname)s:%(lineno)d"
+    iniset $conf_file $conf_section use_journal "True"
+    iniset $conf_file $conf_section logging_context_format_string \
+           "%(levelname)s %(name)s [%(request_id)s %(project_name)s %(user_name)s] %(instance)s%(message)s"
+    iniset $conf_file $conf_section logging_default_format_string \
+           "%(levelname)s %(name)s [-] %(instance)s%(color)s%(message)s"
+    iniset $conf_file $conf_section logging_debug_format_suffix \
+           "from (pid=%(process)d) %(funcName)s %(pathname)s:%(lineno)d"
     iniset $conf_file $conf_section logging_exception_prefix "ERROR %(name)s %(instance)s"
 }
 
diff --git a/lib/keystone b/lib/keystone
index af607c3..d4b3a66 100644
--- a/lib/keystone
+++ b/lib/keystone
@@ -202,7 +202,6 @@
 
     if [[ "$KEYSTONE_CONF_DIR" != "$KEYSTONE_DIR/etc" ]]; then
         install -m 600 $KEYSTONE_DIR/etc/keystone.conf.sample $KEYSTONE_CONF
-        cp -p $KEYSTONE_DIR/etc/policy.json $KEYSTONE_CONF_DIR
         if [[ -f "$KEYSTONE_DIR/etc/keystone-paste.ini" ]]; then
             cp -p "$KEYSTONE_DIR/etc/keystone-paste.ini" "$KEYSTONE_PASTE_INI"
         fi
diff --git a/lib/neutron-legacy b/lib/neutron-legacy
index 86a2b1d..74f36e0 100644
--- a/lib/neutron-legacy
+++ b/lib/neutron-legacy
@@ -432,24 +432,6 @@
 
     git_clone $NEUTRON_REPO $NEUTRON_DIR $NEUTRON_BRANCH
     setup_develop $NEUTRON_DIR
-
-    if [ "$VIRT_DRIVER" == 'xenserver' ]; then
-        local dom0_ip
-        dom0_ip=$(echo "$XENAPI_CONNECTION_URL" | cut -d "/" -f 3-)
-
-        local ssh_dom0
-        ssh_dom0="sudo -u $DOMZERO_USER ssh -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null root@$dom0_ip"
-
-        # Find where the plugins should go in dom0
-        local xen_functions
-        xen_functions=$(cat $TOP_DIR/tools/xen/functions)
-        local plugin_dir
-        plugin_dir=$($ssh_dom0 "$xen_functions; set -eux; xapi_plugin_location")
-
-        # install neutron plugins to dom0
-        tar -czf - -C $NEUTRON_DIR/neutron/plugins/ml2/drivers/openvswitch/agent/xenapi/etc/xapi.d/plugins/ ./ |
-            $ssh_dom0 "tar -xzf - -C $plugin_dir && chmod a+x $plugin_dir/*"
-    fi
 }
 
 # install_neutron_agent_packages() - Collect source and prepare
@@ -523,11 +505,6 @@
 
     run_process q-meta "$AGENT_META_BINARY --config-file $NEUTRON_CONF --config-file $Q_META_CONF_FILE"
     run_process q-metering "$AGENT_METERING_BINARY --config-file $NEUTRON_CONF --config-file $METERING_AGENT_CONF_FILENAME"
-
-    if [ "$VIRT_DRIVER" = 'xenserver' ]; then
-        # For XenServer, start an agent for the domU openvswitch
-        run_process q-domua "$AGENT_BINARY --config-file $NEUTRON_CONF --config-file /$Q_PLUGIN_CONF_FILE.domU"
-    fi
 }
 
 # Start running processes, including screen
@@ -539,10 +516,6 @@
 
 function stop_mutnauq_l2_agent {
     stop_process q-agt
-
-    if [ "$VIRT_DRIVER" = 'xenserver' ]; then
-        stop_process q-domua
-    fi
 }
 
 # stop_mutnauq_other() - Stop running processes (non-screen)
diff --git a/lib/neutron_plugins/openvswitch_agent b/lib/neutron_plugins/openvswitch_agent
index acab582..b65a258 100644
--- a/lib/neutron_plugins/openvswitch_agent
+++ b/lib/neutron_plugins/openvswitch_agent
@@ -11,12 +11,6 @@
 
 function neutron_plugin_create_nova_conf {
     _neutron_ovs_base_configure_nova_vif_driver
-    if [ "$VIRT_DRIVER" == 'xenserver' ]; then
-        iniset $NOVA_CONF xenserver vif_driver nova.virt.xenapi.vif.XenAPIOpenVswitchDriver
-        iniset $NOVA_CONF xenserver ovs_integration_bridge $XEN_INTEGRATION_BRIDGE
-        # Disable nova's firewall so that it does not conflict with neutron
-        iniset $NOVA_CONF DEFAULT firewall_driver nova.virt.firewall.NoopFirewallDriver
-    fi
 }
 
 function neutron_plugin_install_agent_packages {
@@ -58,65 +52,6 @@
     fi
     AGENT_BINARY="$NEUTRON_BIN_DIR/neutron-openvswitch-agent"
 
-    if [ "$VIRT_DRIVER" == 'xenserver' ]; then
-        # Make a copy of our config for domU
-        sudo cp /$Q_PLUGIN_CONF_FILE "/$Q_PLUGIN_CONF_FILE.domU"
-
-        # change domU's config file to STACK_USER
-        sudo chown $STACK_USER:$STACK_USER /$Q_PLUGIN_CONF_FILE.domU
-
-        # Deal with Dom0's L2 Agent:
-        Q_RR_DOM0_COMMAND="$NEUTRON_BIN_DIR/neutron-rootwrap-xen-dom0 $Q_RR_CONF_FILE"
-
-        # For now, duplicate the xen configuration already found in nova.conf
-        iniset $Q_RR_CONF_FILE xenapi xenapi_connection_url "$XENAPI_CONNECTION_URL"
-        iniset $Q_RR_CONF_FILE xenapi xenapi_connection_username "$XENAPI_USER"
-        iniset $Q_RR_CONF_FILE xenapi xenapi_connection_password "$XENAPI_PASSWORD"
-
-        # Under XS/XCP, the ovs agent needs to target the dom0
-        # integration bridge.  This is enabled by using a root wrapper
-        # that executes commands on dom0 via a XenAPI plugin.
-        # XenAPI does not support daemon rootwrap now, so set root_helper_daemon empty
-        iniset "/$Q_PLUGIN_CONF_FILE.domU" agent root_helper ""
-        iniset "/$Q_PLUGIN_CONF_FILE.domU" agent root_helper_daemon "xenapi_root_helper"
-        iniset "/$Q_PLUGIN_CONF_FILE.domU" xenapi connection_url "$XENAPI_CONNECTION_URL"
-        iniset "/$Q_PLUGIN_CONF_FILE.domU" xenapi connection_username "$XENAPI_USER"
-        iniset "/$Q_PLUGIN_CONF_FILE.domU" xenapi connection_password "$XENAPI_PASSWORD"
-
-        # Disable minimize polling, so that it can always detect OVS and Port changes
-        # This is a problem of xenserver + neutron, bug has been reported
-        # https://bugs.launchpad.net/neutron/+bug/1495423
-        iniset "/$Q_PLUGIN_CONF_FILE.domU" agent minimize_polling False
-
-        # Set "physical" mapping
-        iniset "/$Q_PLUGIN_CONF_FILE.domU" ovs bridge_mappings "physnet1:$FLAT_NETWORK_BRIDGE"
-
-        # XEN_INTEGRATION_BRIDGE is the integration bridge in dom0
-        iniset "/$Q_PLUGIN_CONF_FILE.domU" ovs integration_bridge $XEN_INTEGRATION_BRIDGE
-
-        # Set OVS native interface for ovs-agent in compute node
-        XEN_DOM0_IP=$(echo "$XENAPI_CONNECTION_URL" | cut -d "/" -f 3)
-        iniset /$Q_PLUGIN_CONF_FILE.domU ovs ovsdb_connection tcp:$XEN_DOM0_IP:6640
-        iniset /$Q_PLUGIN_CONF_FILE.domU ovs of_listen_address $HOST_IP
-
-        # Set up domU's L2 agent:
-
-        # Create a bridge "br-$VLAN_INTERFACE"
-        _neutron_ovs_base_add_bridge "br-$VLAN_INTERFACE"
-        # Add $VLAN_INTERFACE to that bridge
-        sudo ovs-vsctl -- --may-exist add-port "br-$VLAN_INTERFACE" $VLAN_INTERFACE
-
-        # Create external bridge and add port
-        _neutron_ovs_base_add_public_bridge
-        sudo ovs-vsctl -- --may-exist add-port $PUBLIC_BRIDGE $PUBLIC_INTERFACE
-
-        # Set bridge mappings to "physnet1:br-$GUEST_INTERFACE_DEFAULT"
-        iniset /$Q_PLUGIN_CONF_FILE ovs bridge_mappings "physnet1:br-$VLAN_INTERFACE,physnet-ex:$PUBLIC_BRIDGE"
-        # Set integration bridge to domU's
-        iniset /$Q_PLUGIN_CONF_FILE ovs integration_bridge $OVS_BRIDGE
-        # Set root wrap
-        iniset /$Q_PLUGIN_CONF_FILE agent root_helper "$Q_RR_COMMAND"
-    fi
     iniset /$Q_PLUGIN_CONF_FILE agent tunnel_types $Q_TUNNEL_TYPES
     iniset /$Q_PLUGIN_CONF_FILE ovs datapath_type $OVS_DATAPATH_TYPE
 }
diff --git a/lib/nova_plugins/functions-libvirt b/lib/nova_plugins/functions-libvirt
index 56bb6bd..1ae0492 100644
--- a/lib/nova_plugins/functions-libvirt
+++ b/lib/nova_plugins/functions-libvirt
@@ -20,8 +20,46 @@
 # extremely verbose.)
 DEBUG_LIBVIRT=$(trueorfalse True DEBUG_LIBVIRT)
 
+# Try to enable coredumps for libvirt
+# Currently fairly specific to OpenStackCI hosts
+DEBUG_LIBVIRT_COREDUMPS=$(trueorfalse False DEBUG_LIBVIRT_COREDUMPS)
+
+# Only Xenial is left with libvirt-bin.  Everywhere else is libvirtd
+if is_ubuntu && [ ! -f /etc/init.d/libvirtd ]; then
+    LIBVIRT_DAEMON=libvirt-bin
+else
+    LIBVIRT_DAEMON=libvirtd
+fi
+
+# Enable coredumps for libvirt
+#  Bug: https://bugs.launchpad.net/nova/+bug/1643911
+function _enable_coredump {
+    local confdir=/etc/systemd/system/${LIBVIRT_DAEMON}.service.d
+    local conffile=${confdir}/coredump.conf
+
+    # Create a coredump directory, and instruct the kernel to save to
+    # here
+    sudo mkdir -p /var/core
+    sudo chmod a+wrx /var/core
+    echo '/var/core/core.%e.%p.%h.%t' | \
+        sudo tee /proc/sys/kernel/core_pattern
+
+    # Drop a config file to up the core ulimit
+    sudo mkdir -p ${confdir}
+    sudo tee ${conffile} <<EOF
+[Service]
+LimitCORE=infinity
+EOF
+
+    # Tell systemd to reload the unit (service restarts later after
+    # config anyway)
+    sudo systemctl daemon-reload
+}
+
+
 # Installs required distro-specific libvirt packages.
 function install_libvirt {
+
     if is_ubuntu; then
         install_package qemu-system
         install_package libvirt-bin libvirt-dev
@@ -48,7 +86,10 @@
 
         install_package libvirt libvirt-devel
         pip_install_gr libvirt-python
+    fi
 
+    if [[ $DEBUG_LIBVIRT_COREDUMPS == True ]]; then
+        _enable_coredump
     fi
 }
 
@@ -68,14 +109,6 @@
 EOF
     fi
 
-    # Since the release of Debian Wheezy the libvirt init script is libvirtd
-    # and not libvirtd-bin anymore.
-    if is_ubuntu && [ ! -f /etc/init.d/libvirtd ]; then
-        LIBVIRT_DAEMON=libvirt-bin
-    else
-        LIBVIRT_DAEMON=libvirtd
-    fi
-
     if is_fedora || is_suse; then
         # Starting with fedora 18 and opensuse-12.3 enable stack-user to
         # virsh -c qemu:///system by creating a policy-kit rule for
diff --git a/lib/nova_plugins/hypervisor-xenserver b/lib/nova_plugins/hypervisor-xenserver
index 0046a36..880b87f 100644
--- a/lib/nova_plugins/hypervisor-xenserver
+++ b/lib/nova_plugins/hypervisor-xenserver
@@ -26,10 +26,6 @@
 
 # Allow ``build_domU.sh`` to specify the flat network bridge via kernel args
 FLAT_NETWORK_BRIDGE_DEFAULT=$(sed -e 's/.* flat_network_bridge=\([[:alnum:]]*\).*$/\1/g' /proc/cmdline)
-if is_service_enabled neutron; then
-    XEN_INTEGRATION_BRIDGE_DEFAULT=$(sed -e 's/.* xen_integration_bridge=\([[:alnum:]]*\).*$/\1/g' /proc/cmdline)
-    XEN_INTEGRATION_BRIDGE=${XEN_INTEGRATION_BRIDGE:-$XEN_INTEGRATION_BRIDGE_DEFAULT}
-fi
 
 VNCSERVER_PROXYCLIENT_ADDRESS=${VNCSERVER_PROXYCLIENT_ADDRESS=169.254.0.1}
 
@@ -96,20 +92,6 @@
         echo "create_directory_for_kernels"
         echo "install_conntrack_tools"
     } | $ssh_dom0
-
-    if is_service_enabled neutron; then
-        # Remove restriction on linux bridge in Dom0 when neutron is enabled
-        $ssh_dom0 "rm -f /etc/modprobe.d/blacklist-bridge*"
-
-        count=`$ssh_dom0 "iptables -t filter -L XenServerDevstack |wc -l"`
-        if [ "$count" = "0" ]; then
-        {
-            echo "iptables -t filter --new XenServerDevstack"
-            echo "iptables -t filter -I INPUT -j XenServerDevstack"
-            echo "iptables -t filter -I XenServerDevstack -p tcp --dport 6640 -j ACCEPT"
-        } | $ssh_dom0
-        fi
-    fi
 }
 
 # install_nova_hypervisor() - Install external components
diff --git a/stack.sh b/stack.sh
index 20cdc1d..d8f3ad6 100755
--- a/stack.sh
+++ b/stack.sh
@@ -328,6 +328,7 @@
 DATA_DIR=${DATA_DIR:-${DEST}/data}
 sudo mkdir -p $DATA_DIR
 safe_chown -R $STACK_USER $DATA_DIR
+safe_chmod 0755 $DATA_DIR
 
 # Configure proper hostname
 # Certain services such as rabbitmq require that the local hostname resolves
@@ -1006,6 +1007,22 @@
 # Save configuration values
 save_stackenv $LINENO
 
+# Kernel Samepage Merging (KSM)
+# -----------------------------
+
+# Processes that mark their memory as mergeable can share identical memory
+# pages if KSM is enabled. This is particularly useful for nova + libvirt
+# backends but any other setup that marks its memory as mergeable can take
+# advantage. The drawback is there is higher cpu load; however, we tend to
+# be memory bound not cpu bound so enable KSM by default but allow people
+# to opt out if the CPU time is more important to them.
+
+if [[ "ENABLE_KSM" == "True" ]] ; then
+    if [[ -f /sys/kernel/mm/ksm/run ]] ; then
+        sudo sh -c "echo 1 > /sys/kernel/mm/ksm/run"
+    fi
+fi
+
 
 # Start Services
 # ==============
diff --git a/stackrc b/stackrc
index 61501b5..b53f791 100644
--- a/stackrc
+++ b/stackrc
@@ -104,6 +104,14 @@
     USE_SCREEN=False
 fi
 
+# Whether or not to enable Kernel Samepage Merging (KSM) if available.
+# This allows programs that mark their memory as mergeable to share
+# memory pages if they are identical. This is particularly useful with
+# libvirt backends. This reduces memory useage at the cost of CPU overhead
+# to scan memory. We default to enabling it because we tend to be more
+# memory constrained than CPU bound.
+ENABLE_KSM=$(trueorfalse True ENABLE_KSM)
+
 # When using screen, should we keep a log file on disk?  You might
 # want this False if you have a long-running setup where verbose logs
 # can fill-up the host.
diff --git a/tools/memory_tracker.sh b/tools/memory_tracker.sh
index 7397c03..cbdeb8f 100755
--- a/tools/memory_tracker.sh
+++ b/tools/memory_tracker.sh
@@ -14,6 +14,8 @@
 
 set -o errexit
 
+PYTHON=${PYTHON:-python}
+
 # time to sleep between checks
 SLEEP_TIME=20
 
@@ -86,7 +88,7 @@
             # list processes that lock memory from swap
             if [[ $unevictable -ne $unevictable_point ]]; then
                 unevictable_point=$unevictable
-                ./tools/mlock_report.py
+                ${PYTHON} ./tools/mlock_report.py
             fi
 
             echo "]]]"
diff --git a/tools/mlock_report.py b/tools/mlock_report.py
index 1d23af9..2169cc2 100755
--- a/tools/mlock_report.py
+++ b/tools/mlock_report.py
@@ -8,14 +8,15 @@
 import psutil
 
 
-SUMMARY_REGEX = re.compile(r".*\s+(?P<locked>[\d]+)\s+KB")
+SUMMARY_REGEX = re.compile(b".*\s+(?P<locked>[\d]+)\s+KB")
 
 
 def main():
     try:
-        print _get_report()
+        print(_get_report())
     except Exception as e:
-        print "Failure listing processes locking memory: %s" % str(e)
+        print("Failure listing processes locking memory: %s" % str(e))
+        raise
 
 
 def _get_report():
diff --git a/tools/worlddump.py b/tools/worlddump.py
index eb109b9..6fff149 100755
--- a/tools/worlddump.py
+++ b/tools/worlddump.py
@@ -223,6 +223,14 @@
         print("guru meditation report in %s log" % service)
 
 
+def var_core():
+    if os.path.exists('/var/core'):
+        _header("/var/core dumps")
+        # NOTE(ianw) : see DEBUG_LIBVIRT_COREDUMPS.  We could think
+        # about getting backtraces out of these.  There are other
+        # tools out there that can do that sort of thing though.
+        _dump_cmd("ls -ltrah /var/core")
+
 def main():
     opts = get_options()
     fname = filename(opts.dir, opts.name)
@@ -238,6 +246,7 @@
         ebtables_dump()
         compute_consoles()
         guru_meditation_reports()
+        var_core()
 
 
 if __name__ == '__main__':
diff --git a/tools/xen/README.md b/tools/xen/README.md
index 7062ecb..9559e77 100644
--- a/tools/xen/README.md
+++ b/tools/xen/README.md
@@ -171,8 +171,3 @@
     umount "$mountdir"
     rm -rf "$mountdir"
 
-### Migrate OpenStack DomU to another host
-
-Given you need to migrate your DomU with OpenStack installed to another host,
-you need to set `XEN_INTEGRATION_BRIDGE` in localrc if neutron network is used.
-It is the bridge for `XEN_INT_BRIDGE_OR_NET_NAME` network created in Dom0
diff --git a/tools/xen/install_os_domU.sh b/tools/xen/install_os_domU.sh
index d2e2c57..ac7af0d 100755
--- a/tools/xen/install_os_domU.sh
+++ b/tools/xen/install_os_domU.sh
@@ -66,10 +66,6 @@
 setup_network "$MGT_BRIDGE_OR_NET_NAME"
 setup_network "$PUB_BRIDGE_OR_NET_NAME"
 
-# With neutron, one more network is required, which is internal to the
-# hypervisor, and used by the VMs
-setup_network "$XEN_INT_BRIDGE_OR_NET_NAME"
-
 if parameter_is_specified "FLAT_NETWORK_BRIDGE"; then
     if [ "$(bridge_for "$VM_BRIDGE_OR_NET_NAME")" != "$(bridge_for "$FLAT_NETWORK_BRIDGE")" ]; then
         cat >&2 << EOF
@@ -292,15 +288,9 @@
 #
 $THIS_DIR/build_xva.sh "$GUEST_NAME"
 
-# Attach a network interface for the integration network (so that the bridge
-# is created by XenServer). This is required for Neutron. Also pass that as a
-# kernel parameter for DomU
-attach_network "$XEN_INT_BRIDGE_OR_NET_NAME"
-
 XEN_INTEGRATION_BRIDGE_DEFAULT=$(bridge_for "$XEN_INT_BRIDGE_OR_NET_NAME")
 append_kernel_cmdline \
-    "$GUEST_NAME" \
-    "xen_integration_bridge=${XEN_INTEGRATION_BRIDGE_DEFAULT}"
+    "$GUEST_NAME"
 
 FLAT_NETWORK_BRIDGE="${FLAT_NETWORK_BRIDGE:-$(bridge_for "$VM_BRIDGE_OR_NET_NAME")}"
 append_kernel_cmdline "$GUEST_NAME" "flat_network_bridge=${FLAT_NETWORK_BRIDGE}"
diff --git a/tools/xen/xenrc b/tools/xen/xenrc
index 60be02f..169e042 100644
--- a/tools/xen/xenrc
+++ b/tools/xen/xenrc
@@ -29,7 +29,6 @@
 # Get the management network from the XS installation
 VM_BRIDGE_OR_NET_NAME="OpenStack VM Network"
 PUB_BRIDGE_OR_NET_NAME="OpenStack Public Network"
-XEN_INT_BRIDGE_OR_NET_NAME="OpenStack VM Integration Network"
 
 # VM Password
 GUEST_PASSWORD=${GUEST_PASSWORD:-secret}