diff --git a/doc/source/install/installation-guide.rst b/doc/source/install/installation-guide.rst
index a9db5757..02997859 100644
--- a/doc/source/install/installation-guide.rst
+++ b/doc/source/install/installation-guide.rst
@@ -15,3 +15,4 @@ step by step without DevStack for users who install OpenStack manually.
 .. include:: ./installation-manual.rst
 .. include:: ./installation-cell.rst
 .. include:: ./installation-lbaas.rst
+.. include:: ./installation-lbaas_with_nova_cell_v2.rst
\ No newline at end of file
diff --git a/doc/source/install/installation-lbaas_with_nova_cell_v2.rst b/doc/source/install/installation-lbaas_with_nova_cell_v2.rst
new file mode 100644
index 00000000..569b6de4
--- /dev/null
+++ b/doc/source/install/installation-lbaas_with_nova_cell_v2.rst
@@ -0,0 +1,1323 @@
+===========================================================
+Installation guide for LBaaS with nova cell v2 in Tricircle
+===========================================================
+
+.. note:: Since Octavia does not support multiple region scenarios, some
+   modifications are required to install the Tricircle and Octavia in multiple
+   pods. As a result, we will keep updating this document, so as to support
+   automatic installation and test for Tricircle and Octavia in multiple regions.
+
+.. note:: Multi-cell support of Nova cell v2 is under development. DevStack
+   doesn't support multi-cell deployment currently, so the steps discussed in
+   this document may seem not that elegant. We will keep updating this document
+   according to the progress of multi-cell development by Nova team.
+
+Setup & Installation
+^^^^^^^^^^^^^^^^^^^^
+
+- 1 For the node1 in RegionOne, clone the code from Octavia repository to /opt/stack/ .
+  Then make some changes to Octavia, so that we can build the management network in multiple regions manually. Here we give the following comment example.
+
+  - First, comment the following lines in the **octavia_init** function in octavia/devstack/plugin.sh .
+
+    `Line 586-588 : <https://github.com/openstack/octavia/blob/master/devstack/plugin.sh#L586>`_
+
+    - **build_mgmt_network**
+    - **OCTAVIA_AMP_NETWORK_ID=$(openstack network show lb-mgmt-net -f value -c id)**
+    - **iniset $OCTAVIA_CONF controller_worker amp_boot_network_list ${OCTAVIA_AMP_NETWORK_ID}**
+
+    `Line 593-595 : <https://github.com/openstack/octavia/blob/master/devstack/plugin.sh#L593>`_
+
+    - **if is_service_enabled tempest; then**
+    -     **configure_octavia_tempest ${OCTAVIA_AMP_NETWORK_ID}**
+    - **fi**
+
+    `Line 602-604 : <https://github.com/openstack/octavia/blob/master/devstack/plugin.sh#L602>`_
+
+    - **if is_service_enabled tempest; then**
+    -     **configure_octavia_tempest ${OCTAVIA_AMP_NETWORK_ID}**
+    - **fi**
+
+    `Line 610 : <https://github.com/openstack/octavia/blob/master/devstack/plugin.sh#L610>`_
+
+    - **create_mgmt_network_interface**
+
+    `Line 612 : <https://github.com/openstack/octavia/blob/master/devstack/plugin.sh#L612>`_
+
+    - **configure_lb_mgmt_sec_grp**
+
+  - Second, comment the following three lines in the **octavia_start** function in octavia/devstack/plugin.sh .
+
+    `Line 465-467 : <https://github.com/openstack/octavia/blob/master/devstack/plugin.sh#L465>`_
+
+    - **if  ! ps aux | grep -q [o]-hm0 && [ $OCTAVIA_NODE != 'api' ] ; then**
+    -     **sudo dhclient -v o-hm0 -cf $OCTAVIA_DHCLIENT_CONF**
+    - **fi**
+
+- 2 Follow "Multi-pod Installation with DevStack" document `Multi-pod Installation with DevStack <https://docs.openstack.org/tricircle/latest/install/installation-guide.html#multi-pod-installation-with-devstack>`_
+  to prepare your local.conf for the node1 in RegionOne, and add the
+  following lines before installation. Start DevStack in node1.
+
+    .. code-block:: console
+
+        TRICIRCLE_DEPLOY_WITH_CELL=True
+
+        enable_plugin neutron-lbaas https://github.com/openstack/neutron-lbaas.git
+        enable_plugin octavia https://github.com/openstack/octavia.git
+        ENABLED_SERVICES+=,q-lbaasv2
+        ENABLED_SERVICES+=,octavia,o-cw,o-hk,o-hm,o-api
+
+- 3 If users only want to deploy Octavia in RegionOne, the following two
+  steps can be skipped. After the DevStack installation in node1 is completed.
+  For the node2 in RegionTwo, clone the code from Octavia repository to
+  /opt/stack/. Here we need to modify plugin.sh in five sub-steps.
+
+  - First, since Keystone is installed in RegionOne and shared by other
+    regions, we need to comment all **add_load-balancer_roles** lines in
+    the **octavia_init** function in octavia/devstack/plugin.sh .
+
+    `Line 597 and Line 606 : <https://github.com/openstack/octavia/blob/master/devstack/plugin.sh#L597>`_
+
+    - **add_load-balancer_roles**
+
+  - Second, the same as Step 1, comment total fourteen lines of creating networking resources in the **octavia_init** function.
+
+  - Third, replace all **'openstack keypair'** with
+    **'openstack --os-region-name=$REGION_NAME keypair'**.
+
+  - Fourth, replace all **'openstack image'** with
+    **'openstack --os-region-name=$REGION_NAME image'**.
+
+  - Fifth, replace all **'openstack flavor'** with
+    **'openstack --os-region-name=$REGION_NAME flavor'**.
+
+- 4 Follow "Multi-pod Installation with DevStack" document `Multi-pod Installation with DevStack <https://docs.openstack.org/tricircle/latest/install/installation-guide.html#multi-pod-installation-with-devstack>`_
+  to prepare your local.conf for the node2 in RegionTwo, and add the
+  following lines before installation. Start DevStack in node2.
+
+    .. code-block:: console
+
+        TRICIRCLE_DEPLOY_WITH_CELL=True
+
+        enable_plugin neutron-lbaas https://github.com/openstack/neutron-lbaas.git
+        enable_plugin octavia https://github.com/openstack/octavia.git
+        ENABLED_SERVICES+=,q-lbaasv2
+        ENABLED_SERVICES+=,octavia,o-cw,o-hk,o-hm,o-api
+
+- 5 After DevStack successfully starts, we must create environment variables
+  for the admin user and use the admin project, since Octavia controller will
+  use admin account to query and use the management network as well as
+  security group created in the following steps
+
+    .. code-block:: console
+
+        $ source openrc admin admin
+
+- 6 Then unset the region name environment variable, so that the command can be
+  issued to specified region in following commands as needed.
+
+    .. code-block:: console
+
+        $ unset OS_REGION_NAME
+
+.. note:: After running DevStack in both nodes, a multi-cell environment will
+  be prepared: there is one CentralRegion, where Nova API and central Neutron
+  will be registered. Nova has two cells, node1 belongs to cell1, node2 belongs
+  to cell2, and each cell will be configured to use a dedicated local Neutron.
+  For cell1, it's RegionOne Neutron in node1; for cell2, it's RegionTwo Neutron
+  in node2(you can set the region name in local.conf to make the name more
+  friendly). End user can access CentralRegion endpoint of Nova and Neutron to
+  experience the integration of Nova cell v2 and Tricircle.
+
+- 7 Stop the following services in node2::
+
+    systemctl stop devstack@n-sch.service
+    systemctl stop devstack@n-super-cond.service
+    systemctl stop devstack@n-api.service
+
+  if the service of devstack@n-api-meta.service exists, stop it::
+
+    systemctl stop devstack@n-api-meta.service
+
+.. note:: Actually for cell v2, only one Nova API is required. We enable n-api
+   in node2 because we need DevStack to help us create the necessary cell
+   database. If n-api is disabled, neither API database nor cell database will
+   be created.
+
+- 8 In node2, run the following command::
+
+    mysql -u $user -p $password -D nova_cell1 -e 'select host, mapped from compute_nodes'
+
+  you can see that this command returns you one row showing the host of node2
+  is already mapped::
+
+    +--------+--------+
+    | host   | mapped |
+    +--------+--------+
+    | stack2 |      1 |
+    +--------+--------+
+
+  This host is registered to Nova API in node2, which is already stopped by us,
+  We need to update this row to set "mapped" to 0::
+
+    mysql -u $user -p $password -D nova_cell1 -e 'update compute_nodes set mapped = 0 where host = "stack2"'
+    mysql -u $user -p $password -D nova_cell1 -e 'select host, mapped from compute_nodes'
+
+    +--------+--------+
+    | host   | mapped |
+    +--------+--------+
+    | stack2 |      0 |
+    +--------+--------+
+
+  then we can register this host again in step4.
+
+- 9 In node1, run the following commands to register the new cell::
+
+    nova-manage cell_v2 create_cell --name cell2 \
+      --transport-url rabbit://$rabbit_user:$rabbit_passwd@$node2_ip:5672/nova_cell1 \
+      --database_connection mysql+pymysql://$db_user:$db_passwd@$node2_ip/nova_cell1?charset=utf8
+
+    nova-manage cell_v2 discover_hosts
+
+  then you can see the new cell and host are added in the database::
+
+    mysql -u $user -p $password -D nova_api -e 'select cell_id, host from host_mappings'
+
+    +---------+--------+
+    | cell_id | host   |
+    +---------+--------+
+    |       2 | stack1 |
+    |       3 | stack2 |
+    +---------+--------+
+
+    mysql -u $user -p $password -D nova_api -e 'select id, name from cell_mappings'
+
+    +----+-------+
+    | id | name  |
+    +----+-------+
+    |  1 | cell0 |
+    |  2 | cell1 |
+    |  3 | cell2 |
+    +----+-------+
+
+- 10 In node1, run the following commands::
+
+    systemctl restart devstack@n-sch.service
+
+- 11 In node1, check if compute services in both hosts are registered::
+
+    openstack --os-region-name CentralRegion compute service list
+
+    +----+------------------+--------+----------+---------+-------+----------------------------+
+    | ID | Binary           | Host   | Zone     | Status  | State | Updated At                 |
+    +----+------------------+--------+----------+---------+-------+----------------------------+
+    |  3 | nova-scheduler   | stack1 | internal | enabled | up    | 2019-01-01T05:31:31.000000 |
+    |  5 | nova-consoleauth | stack1 | internal | enabled | up    | 2019-01-01T05:31:37.000000 |
+    |  7 | nova-conductor   | stack1 | internal | enabled | up    | 2019-01-01T05:31:30.000000 |
+    |  1 | nova-conductor   | stack1 | internal | enabled | up    | 2019-01-01T05:31:38.000000 |
+    |  3 | nova-compute     | stack1 | nova     | enabled | up    | 2019-01-01T05:31:38.000000 |
+    |  1 | nova-conductor   | stack2 | internal | enabled | up    | 2019-01-01T05:31:36.000000 |
+    |  3 | nova-compute     | stack2 | nova     | enabled | up    | 2019-01-01T05:31:31.000000 |
+    +----+------------------+--------+----------+---------+-------+----------------------------+
+
+    stack1 has two nova-conductor services, because one of them is a super
+    conductor service.
+
+    After you run "compute service list" in step5, if you only see services in node1, like::
+
+    +----+------------------+--------+----------+---------+-------+----------------------------+
+    | ID | Binary           | Host   | Zone     | Status  | State | Updated At                 |
+    +----+------------------+--------+----------+---------+-------+----------------------------+
+    |  1 | nova-conductor   | stack1 | internal | enabled | up    | 2019-01-01T05:30:58.000000 |
+    |  3 | nova-compute     | stack1 | nova     | enabled | up    | 2019-01-01T05:30:58.000000 |
+    |  3 | nova-scheduler   | stack1 | internal | enabled | up    | 2019-01-01T05:31:01.000000 |
+    |  5 | nova-consoleauth | stack1 | internal | enabled | up    | 2019-01-01T05:30:57.000000 |
+    |  7 | nova-conductor   | stack1 | internal | enabled | up    | 2019-01-01T05:31:00.000000 |
+    +----+------------------+--------+----------+---------+-------+----------------------------+
+
+    Though new cell has been registered in the database, the running n-api process
+    in node1 may not recognize it. We find that restarting n-api can solve this
+    problem.
+
+- 12 Create two aggregates and put the two hosts in each aggregate::
+
+    nova --os-region-name CentralRegion aggregate-create ag1 az1
+    nova --os-region-name CentralRegion aggregate-create ag2 az2
+    nova --os-region-name CentralRegion aggregate-add-host ag1 stack1
+    nova --os-region-name CentralRegion aggregate-add-host ag2 stack2
+
+- 13 Create pods, tricircle client is used::
+
+    openstack --os-region-name CentralRegion multiregion networking pod create --region-name CentralRegion
+    openstack --os-region-name CentralRegion multiregion networking pod create --region-name RegionOne --availability-zone az1
+    openstack --os-region-name CentralRegion multiregion networking pod create --region-name RegionTwo --availability-zone az2
+
+
+Configuration
+^^^^^^^^^^^^^
+
+- 1 Create security groups.
+
+  - Create security group and rules for load balancer management network.
+
+    .. code-block:: console
+
+        $ openstack --os-region-name CentralRegion security group create lb-mgmt-sec-grp
+        $ openstack --os-region-name CentralRegion security group rule create --protocol icmp lb-mgmt-sec-grp
+        $ openstack --os-region-name CentralRegion security group rule create --protocol tcp --dst-port 22 lb-mgmt-sec-grp
+        $ openstack --os-region-name CentralRegion security group rule create --protocol tcp --dst-port 80 lb-mgmt-sec-grp
+        $ openstack --os-region-name CentralRegion security group rule create --protocol tcp --dst-port 9443 lb-mgmt-sec-grp
+        $ openstack --os-region-name CentralRegion security group rule create --protocol icmpv6 --ethertype IPv6 --remote-ip ::/0 lb-mgmt-sec-grp
+        $ openstack --os-region-name CentralRegion security group rule create --protocol tcp --dst-port 22 --ethertype IPv6 --remote-ip ::/0 lb-mgmt-sec-grp
+        $ openstack --os-region-name CentralRegion security group rule create --protocol tcp --dst-port 80 --ethertype IPv6 --remote-ip ::/0 lb-mgmt-sec-grp
+        $ openstack --os-region-name CentralRegion security group rule create --protocol tcp --dst-port 9443 --ethertype IPv6 --remote-ip ::/0 lb-mgmt-sec-grp
+        $ openstack --os-region-name RegionOne security group show $lb-mgmt-sec-grp_ID
+
+    .. note:: The output in the console is omitted.
+
+  - Create security group and rules for healthy manager
+
+    .. code-block:: console
+
+        $ openstack --os-region-name CentralRegion security group create lb-health-mgr-sec-grp
+        $ openstack --os-region-name CentralRegion security group rule create --protocol udp --dst-port 5555 lb-health-mgr-sec-grp
+        $ openstack --os-region-name CentralRegion security group rule create --protocol udp --dst-port 5555 --ethertype IPv6 --remote-ip ::/0 lb-health-mgr-sec-grp
+
+    .. note:: The output in the console is omitted.
+
+- 2 Configure LBaaS in node1
+
+  - Create an amphora management network in CentralRegion
+
+    .. code-block:: console
+
+        $ openstack --os-region-name CentralRegion network create lb-mgmt-net1
+
+        +---------------------------+--------------------------------------+
+        | Field                     | Value                                |
+        +---------------------------+--------------------------------------+
+        | admin_state_up            | UP                                   |
+        | availability_zone_hints   |                                      |
+        | availability_zones        | None                                 |
+        | created_at                | None                                 |
+        | description               | None                                 |
+        | dns_domain                | None                                 |
+        | id                        | 9c3bd3f7-b581-4686-b35a-434b2fe5c1d5 |
+        | ipv4_address_scope        | None                                 |
+        | ipv6_address_scope        | None                                 |
+        | is_default                | None                                 |
+        | is_vlan_transparent       | None                                 |
+        | location                  | None                                 |
+        | mtu                       | None                                 |
+        | name                      | lb-mgmt-net1                         |
+        | port_security_enabled     | False                                |
+        | project_id                | d3b83ed3f2504a8699c9528a2297fea7     |
+        | provider:network_type     | vxlan                                |
+        | provider:physical_network | None                                 |
+        | provider:segmentation_id  | 1094                                 |
+        | qos_policy_id             | None                                 |
+        | revision_number           | None                                 |
+        | router:external           | Internal                             |
+        | segments                  | None                                 |
+        | shared                    | False                                |
+        | status                    | ACTIVE                               |
+        | subnets                   |                                      |
+        | tags                      |                                      |
+        | updated_at                | None                                 |
+        +---------------------------+--------------------------------------+
+
+  - Create a subnet in lb-mgmt-net1
+
+    .. code-block:: console
+
+        $ openstack --os-region-name CentralRegion subnet create --subnet-range 192.168.10.0/24 --network lb-mgmt-net1 lb-mgmt-subnet1
+
+        +-------------------+--------------------------------------+
+        | Field             | Value                                |
+        +-------------------+--------------------------------------+
+        | allocation_pools  | 192.168.10.2-192.168.10.254          |
+        | cidr              | 192.168.10.0/24                      |
+        | created_at        | 2019-01-01T06:31:10Z                 |
+        | description       |                                      |
+        | dns_nameservers   |                                      |
+        | enable_dhcp       | True                                 |
+        | gateway_ip        | 192.168.10.1                         |
+        | host_routes       |                                      |
+        | id                | 84562c3a-55be-4c0f-9e50-3a5206670077 |
+        | ip_version        | 4                                    |
+        | ipv6_address_mode | None                                 |
+        | ipv6_ra_mode      | None                                 |
+        | location          | None                                 |
+        | name              | lb-mgmt-subnet1                      |
+        | network_id        | 9c3bd3f7-b581-4686-b35a-434b2fe5c1d5 |
+        | project_id        | d3b83ed3f2504a8699c9528a2297fea7     |
+        | revision_number   | 0                                    |
+        | segment_id        | None                                 |
+        | service_types     | None                                 |
+        | subnetpool_id     | None                                 |
+        | tags              |                                      |
+        | updated_at        | 2019-01-01T06:31:10Z                 |
+        +-------------------+--------------------------------------+
+
+  - Create the health management interface for Octavia in RegionOne.
+
+    .. code-block:: console
+
+        $ id_and_mac=$(openstack --os-region-name CentralRegion port create --security-group lb-health-mgr-sec-grp --device-owner Octavia:health-mgr --network lb-mgmt-net1 octavia-health-manager-region-one-listen-port | awk '/ id | mac_address / {print $4}')
+        $ id_and_mac=($id_and_mac)
+        $ MGMT_PORT_ID=${id_and_mac[0]}
+        $ MGMT_PORT_MAC=${id_and_mac[1]}
+        $ MGMT_PORT_IP=$(openstack --os-region-name RegionOne port show -f value -c fixed_ips $MGMT_PORT_ID | awk '{FS=",| "; gsub(",",""); gsub("'\''",""); for(i = 1; i <= NF; ++i) {if ($i ~ /^ip_address/) {n=index($i, "="); if (substr($i, n+1) ~ "\\.") print substr($i, n+1)}}}')
+        $ openstack --os-region-name RegionOne port set --host $(hostname)  $MGMT_PORT_ID
+        $ sudo ovs-vsctl -- --may-exist add-port ${OVS_BRIDGE:-br-int} o-hm0 -- set Interface o-hm0 type=internal -- set Interface o-hm0 external-ids:iface-status=active -- set Interface o-hm0 external-ids:attached-mac=$MGMT_PORT_MAC -- set Interface o-hm0 external-ids:iface-id=$MGMT_PORT_ID -- set Interface o-hm0 external-ids:skip_cleanup=true
+        $ OCTAVIA_DHCLIENT_CONF=/etc/octavia/dhcp/dhclient.conf
+        $ sudo ip link set dev o-hm0 address $MGMT_PORT_MAC
+        $ sudo dhclient -v o-hm0 -cf $OCTAVIA_DHCLIENT_CONF
+
+        Listening on LPF/o-hm0/fa:16:3e:54:16:8e
+        Sending on   LPF/o-hm0/fa:16:3e:54:16:8e
+        Sending on   Socket/fallback
+        DHCPDISCOVER on o-hm0 to 255.255.255.255 port 67 interval 3 (xid=0xd3e7353)
+        DHCPREQUEST of 192.168.10.194 on o-hm0 to 255.255.255.255 port 67 (xid=0x53733e0d)
+        DHCPOFFER of 192.168.10.194 from 192.168.10.2
+        DHCPACK of 192.168.10.194 from 192.168.10.2
+        bound to 192.168.10.194 -- renewal in 42514 seconds.
+
+        $ sudo iptables -I INPUT -i o-hm0 -p udp --dport 5555 -j ACCEPT
+
+    .. note:: As shown in the console, DHCP server allocates 192.168.10.194 as the
+        IP of the health management interface, i.e., 0-hm. Hence, we need to
+        modify the /etc/octavia/octavia.conf file to make Octavia aware of it and
+        use the resources we just created, including health management interface,
+        amphora security group and so on.
+
+    .. csv-table::
+        :header: "Option", "Description", "Example"
+
+        [health_manager] bind_ip, "the ip of health manager in RegionOne", 192.168.10.194
+        [health_manager] bind_port, "the port health manager listens on", 5555
+        [health_manager] controller_ip_port_list, "the ip and port of health manager binds in RegionOne", 192.168.10.194:5555
+        [controller_worker] amp_boot_network_list, "the id of amphora management network in RegionOne", "query neutron to obtain it, i.e., the id of lb-mgmt-net1 in this doc"
+        [controller_worker] amp_secgroup_list, "the id of security group created for amphora in central region", "query neutron to obtain it, i.e., the id of lb-mgmt-sec-grp"
+        [neutron] service_name, "The name of the neutron service in the keystone catalog", neutron
+        [neutron] endpoint, "Central neutron endpoint if override is necessary", http://192.168.57.9:20001/
+        [neutron] region_name, "Region in Identity service catalog to use for communication with the OpenStack services", CentralRegion
+        [neutron] endpoint_type, "Endpoint type", public
+        [nova] service_name, "The name of the nova service in the keystone catalog", nova
+        [nova] endpoint, "Custom nova endpoint if override is necessary", http://192.168.57.9/compute/v2.1
+        [nova] region_name, "Region in Identity service catalog to use for communication with the OpenStack services", RegionOne
+        [nova] endpoint_type, "Endpoint type in Identity service catalog to use for communication with the OpenStack services", public
+        [glance] service_name, "The name of the glance service in the keystone catalog", glance
+        [glance] endpoint, "Custom glance endpoint if override is necessary", http://192.168.57.9/image
+        [glance] region_name, "Region in Identity service catalog to use for communication with the OpenStack services", RegionOne
+        [glance] endpoint_type, "Endpoint type in Identity service catalog to use for communication with the OpenStack services", public
+
+    Restart all the services of Octavia in node1.
+
+    .. code-block:: console
+
+        $ sudo systemctl restart devstack@o-*
+
+- 2 If users only deploy Octavia in RegionOne, this step can be skipped.
+  Configure LBaaS in node2.
+
+  - Create an amphora management network in CentralRegion
+
+    .. code-block:: console
+
+        $ openstack --os-region-name CentralRegion network create lb-mgmt-net2
+
+        +---------------------------+--------------------------------------+
+        | Field                     | Value                                |
+        +---------------------------+--------------------------------------+
+        | admin_state_up            | UP                                   |
+        | availability_zone_hints   |                                      |
+        | availability_zones        | None                                 |
+        | created_at                | None                                 |
+        | description               | None                                 |
+        | dns_domain                | None                                 |
+        | id                        | 6494d887-25a8-4b07-8422-93f7acc21ecd |
+        | ipv4_address_scope        | None                                 |
+        | ipv6_address_scope        | None                                 |
+        | is_default                | None                                 |
+        | is_vlan_transparent       | None                                 |
+        | location                  | None                                 |
+        | mtu                       | None                                 |
+        | name                      | lb-mgmt-net2                         |
+        | port_security_enabled     | False                                |
+        | project_id                | d3b83ed3f2504a8699c9528a2297fea7     |
+        | provider:network_type     | vxlan                                |
+        | provider:physical_network | None                                 |
+        | provider:segmentation_id  | 1085                                 |
+        | qos_policy_id             | None                                 |
+        | revision_number           | None                                 |
+        | router:external           | Internal                             |
+        | segments                  | None                                 |
+        | shared                    | False                                |
+        | status                    | ACTIVE                               |
+        | subnets                   |                                      |
+        | tags                      |                                      |
+        | updated_at                | None                                 |
+        +---------------------------+--------------------------------------+
+
+  - Create a subnet in lb-mgmt-net2
+
+    .. code-block:: console
+
+        $ openstack --os-region-name CentralRegion subnet create --subnet-range 192.168.20.0/24 --network lb-mgmt-net2 lb-mgmt-subnet2
+
+        +-------------------+--------------------------------------+
+        | Field             | Value                                |
+        +-------------------+--------------------------------------+
+        | allocation_pools  | 192.168.20.2-192.168.20.254          |
+        | cidr              | 192.168.20.0/24                      |
+        | created_at        | 2019-01-01T06:53:28Z                 |
+        | description       |                                      |
+        | dns_nameservers   |                                      |
+        | enable_dhcp       | True                                 |
+        | gateway_ip        | 192.168.20.1                         |
+        | host_routes       |                                      |
+        | id                | de2e9e76-e3c8-490f-b030-4374b22c2d95 |
+        | ip_version        | 4                                    |
+        | ipv6_address_mode | None                                 |
+        | ipv6_ra_mode      | None                                 |
+        | location          | None                                 |
+        | name              | lb-mgmt-subnet2                      |
+        | network_id        | 6494d887-25a8-4b07-8422-93f7acc21ecd |
+        | project_id        | d3b83ed3f2504a8699c9528a2297fea7     |
+        | revision_number   | 0                                    |
+        | segment_id        | None                                 |
+        | service_types     | None                                 |
+        | subnetpool_id     | None                                 |
+        | tags              |                                      |
+        | updated_at        | 2019-01-01T06:53:28Z                 |
+        +-------------------+--------------------------------------+
+
+  - Create the health management interface for Octavia in RegionTwo.
+
+    .. code-block:: console
+
+        $ id_and_mac=$(openstack --os-region-name CentralRegion port create --security-group lb-health-mgr-sec-grp --device-owner Octavia:health-mgr --network lb-mgmt-net2 octavia-health-manager-region-two-listen-port | awk '/ id | mac_address / {print $4}')
+        $ id_and_mac=($id_and_mac)
+        $ MGMT_PORT_ID=${id_and_mac[0]}
+        $ MGMT_PORT_MAC=${id_and_mac[1]}
+        $ MGMT_PORT_IP=$(openstack --os-region-name RegionTwo port show -f value -c fixed_ips $MGMT_PORT_ID | awk '{FS=",| "; gsub(",",""); gsub("'\''",""); for(i = 1; i <= NF; ++i) {if ($i ~ /^ip_address/) {n=index($i, "="); if (substr($i, n+1) ~ "\\.") print substr($i, n+1)}}}')
+        $ openstack --os-region-name RegionTwo port set --host $(hostname) $MGMT_PORT_ID
+        $ sudo ovs-vsctl -- --may-exist add-port ${OVS_BRIDGE:-br-int} o-hm0 -- set Interface o-hm0 type=internal -- set Interface o-hm0 external-ids:iface-status=active -- set Interface o-hm0 external-ids:attached-mac=$MGMT_PORT_MAC -- set Interface o-hm0 external-ids:iface-id=$MGMT_PORT_ID -- set Interface o-hm0 external-ids:skip_cleanup=true
+        $ OCTAVIA_DHCLIENT_CONF=/etc/octavia/dhcp/dhclient.conf
+        $ sudo ip link set dev o-hm0 address $MGMT_PORT_MAC
+        $ sudo dhclient -v o-hm0 -cf $OCTAVIA_DHCLIENT_CONF
+
+        Listening on LPF/o-hm0/fa:16:3e:c0:bf:30
+        Sending on   LPF/o-hm0/fa:16:3e:c0:bf:30
+        Sending on   Socket/fallback
+        DHCPDISCOVER on o-hm0 to 255.255.255.255 port 67 interval 3 (xid=0xad6d3a1a)
+        DHCPREQUEST of 192.168.20.3 on o-hm0 to 255.255.255.255 port 67 (xid=0x1a3a6dad)
+        DHCPOFFER of 192.168.20.3 from 192.168.20.2
+        DHCPACK of 192.168.20.3 from 192.168.20.2
+        bound to 192.168.20.3 -- renewal in 37208 seconds.
+
+        $ sudo iptables -I INPUT -i o-hm0 -p udp --dport 5555 -j ACCEPT
+
+    .. note:: The ip allocated by DHCP server, i.e., 192.168.20.3 in this case,
+        is the bound and listened by health manager of Octavia. Please note that
+        it will be used in the configuration file of Octavia.
+
+    Modify the /etc/octavia/octavia.conf in node2.
+
+    .. csv-table::
+        :header: "Option", "Description", "Example"
+
+        [health_manager] bind_ip, "the ip of health manager in RegionTwo", 192.168.20.3
+        [health_manager] bind_port, "the port health manager listens on in RegionTwo", 5555
+        [health_manager] controller_ip_port_list, "the ip and port of health manager binds in RegionTwo", 192.168.20.3:5555
+        [controller_worker] amp_boot_network_list, "the id of amphora management network in RegionTwo", "query neutron to obtain it, i.e., the id of lb-mgmt-net2 in this doc"
+        [controller_worker] amp_secgroup_list, "the id of security group created for amphora in central region", "query neutron to obtain it, i.e., the id of lb-mgmt-sec-grp"
+        [neutron] service_name, "The name of the neutron service in the keystone catalog", neutron
+        [neutron] endpoint, "Central neutron endpoint if override is necessary", http://192.168.57.9:20001/
+        [neutron] region_name, "Region in Identity service catalog to use for communication with the OpenStack services", CentralRegion
+        [neutron] endpoint_type, "Endpoint type", public
+        [nova] service_name, "The name of the nova service in the keystone catalog", nova
+        [nova] endpoint, "Custom nova endpoint if override is necessary", http://192.168.57.10/compute/v2.1
+        [nova] region_name, "Region in Identity service catalog to use for communication with the OpenStack services", RegionTwo
+        [nova] endpoint_type, "Endpoint type in Identity service catalog to use for communication with the OpenStack services", public
+        [glance] service_name, "The name of the glance service in the keystone catalog", glance
+        [glance] endpoint, "Custom glance endpoint if override is necessary", http://192.168.57.10/image
+        [glance] region_name, "Region in Identity service catalog to use for communication with the OpenStack services", RegionTwo
+        [glance] endpoint_type, "Endpoint type in Identity service catalog to use for communication with the OpenStack services", public
+
+    Restart all the services of Octavia in node2.
+
+    .. code-block:: console
+
+        $ sudo systemctl restart devstack@o-*
+
+  - By now, we finish installing LBaaS.
+
+How to play
+^^^^^^^^^^^
+
+- 1 LBaaS members in one network and in same region
+
+    Here we take VxLAN as an example.
+
+  - Create net1 in CentralRegion
+
+    .. code-block:: console
+
+        $ openstack --os-region-name CentralRegion network create net1
+
+        +---------------------------+--------------------------------------+
+        | Field                     | Value                                |
+        +---------------------------+--------------------------------------+
+        | admin_state_up            | UP                                   |
+        | availability_zone_hints   |                                      |
+        | availability_zones        | None                                 |
+        | created_at                | None                                 |
+        | description               | None                                 |
+        | dns_domain                | None                                 |
+        | id                        | 9dcdcb56-358f-40b1-9e3f-6ed6bae6db7d |
+        | ipv4_address_scope        | None                                 |
+        | ipv6_address_scope        | None                                 |
+        | is_default                | None                                 |
+        | is_vlan_transparent       | None                                 |
+        | location                  | None                                 |
+        | mtu                       | None                                 |
+        | name                      | net1                                 |
+        | port_security_enabled     | False                                |
+        | project_id                | d3b83ed3f2504a8699c9528a2297fea7     |
+        | provider:network_type     | vxlan                                |
+        | provider:physical_network | None                                 |
+        | provider:segmentation_id  | 1102                                 |
+        | qos_policy_id             | None                                 |
+        | revision_number           | None                                 |
+        | router:external           | Internal                             |
+        | segments                  | None                                 |
+        | shared                    | False                                |
+        | status                    | ACTIVE                               |
+        | subnets                   |                                      |
+        | tags                      |                                      |
+        | updated_at                | None                                 |
+        +---------------------------+--------------------------------------+
+
+  - Create a subnet in net1
+
+    .. code-block:: console
+
+        $ openstack --os-region-name CentralRegion subnet create --subnet-range 10.0.10.0/24 --gateway none --network net1 subnet1
+
+        +-------------------+--------------------------------------+
+        | Field             | Value                                |
+        +-------------------+--------------------------------------+
+        | allocation_pools  | 10.0.10.1-10.0.10.254                |
+        | cidr              | 10.0.10.0/24                         |
+        | created_at        | 2019-01-01T07:22:45Z                 |
+        | description       |                                      |
+        | dns_nameservers   |                                      |
+        | enable_dhcp       | True                                 |
+        | gateway_ip        | None                                 |
+        | host_routes       |                                      |
+        | id                | 39ccf811-b188-4ccf-a643-dd7669a413c2 |
+        | ip_version        | 4                                    |
+        | ipv6_address_mode | None                                 |
+        | ipv6_ra_mode      | None                                 |
+        | location          | None                                 |
+        | name              | subnet1                              |
+        | network_id        | 9dcdcb56-358f-40b1-9e3f-6ed6bae6db7d |
+        | project_id        | d3b83ed3f2504a8699c9528a2297fea7     |
+        | revision_number   | 0                                    |
+        | segment_id        | None                                 |
+        | service_types     | None                                 |
+        | subnetpool_id     | None                                 |
+        | tags              |                                      |
+        | updated_at        | 2019-01-01T07:22:45Z                 |
+        +-------------------+--------------------------------------+
+
+    .. note:: To enable adding instances as members with VIP, amphora adds a
+        new route table to route the traffic sent from VIP to its gateway. However,
+        in Tricircle, the gateway obtained from central neutron is not the real
+        gateway in local neutron. As a result, we did not set any gateway for
+        the subnet temporarily. We will remove the limitation in the future.
+
+  - List all available flavors in RegionOne
+
+    .. code-block:: console
+
+        $ openstack --os-region-name RegionOne flavor list
+
+        +----+-----------+-------+------+-----------+-------+-----------+
+        | ID | Name      |   RAM | Disk | Ephemeral | VCPUs | Is Public |
+        +----+-----------+-------+------+-----------+-------+-----------+
+        | 1  | m1.tiny   |   512 |    1 |         0 |     1 | True      |
+        | 2  | m1.small  |  2048 |   20 |         0 |     1 | True      |
+        | 3  | m1.medium |  4096 |   40 |         0 |     2 | True      |
+        | 4  | m1.large  |  8192 |   80 |         0 |     4 | True      |
+        | 42 | m1.nano   |    64 |    0 |         0 |     1 | True      |
+        | 5  | m1.xlarge | 16384 |  160 |         0 |     8 | True      |
+        | 84 | m1.micro  |   128 |    0 |         0 |     1 | True      |
+        | c1 | cirros256 |   256 |    0 |         0 |     1 | True      |
+        | d1 | ds512M    |   512 |    5 |         0 |     1 | True      |
+        | d2 | ds1G      |  1024 |   10 |         0 |     1 | True      |
+        | d3 | ds2G      |  2048 |   10 |         0 |     2 | True      |
+        | d4 | ds4G      |  4096 |   20 |         0 |     4 | True      |
+        +----+-----------+-------+------+-----------+-------+-----------+
+
+  - List all available images in RegionOne
+
+    .. code-block:: console
+
+        $ openstack --os-region-name RegionOne image list
+
+        +--------------------------------------+--------------------------+--------+
+        | ID                                   | Name                     | Status |
+        +--------------------------------------+--------------------------+--------+
+        | 471ed2cb-8004-4973-9210-b96463b2c668 | amphora-x64-haproxy      | active |
+        | 85d165f0-bc7a-43d5-850b-4a8e89e57a66 | cirros-0.3.6-x86_64-disk | active |
+        +--------------------------------------+--------------------------+--------+
+
+  - Create two instances, i.e., backend1 and backend2, in RegionOne, which reside in subnet1.
+
+    .. code-block:: console
+
+        $ openstack --os-region-name CentralRegion server create --flavor 1 --image $image_id --nic net-id=$net1_id --availability-zone az1 backend1
+        $ openstack --os-region-name CentralRegion server create --flavor 1 --image $image_id --nic net-id=$net1_id --availability-zone az1 backend2
+
+        +--------------------------------------+-----------------------------------------------------------------+
+        | Property                             | Value                                                           |
+        +--------------------------------------+-----------------------------------------------------------------+
+        | OS-DCF:diskConfig                    | MANUAL                                                          |
+        | OS-EXT-AZ:availability_zone          |                                                                 |
+        | OS-EXT-SRV-ATTR:host                 | -                                                               |
+        | OS-EXT-SRV-ATTR:hostname             | backend1                                                        |
+        | OS-EXT-SRV-ATTR:hypervisor_hostname  | -                                                               |
+        | OS-EXT-SRV-ATTR:instance_name        |                                                                 |
+        | OS-EXT-SRV-ATTR:kernel_id            |                                                                 |
+        | OS-EXT-SRV-ATTR:launch_index         | 0                                                               |
+        | OS-EXT-SRV-ATTR:ramdisk_id           |                                                                 |
+        | OS-EXT-SRV-ATTR:reservation_id       | r-0m1suyvm                                                      |
+        | OS-EXT-SRV-ATTR:root_device_name     | -                                                               |
+        | OS-EXT-SRV-ATTR:user_data            | -                                                               |
+        | OS-EXT-STS:power_state               | 0                                                               |
+        | OS-EXT-STS:task_state                | scheduling                                                      |
+        | OS-EXT-STS:vm_state                  | building                                                        |
+        | OS-SRV-USG:launched_at               | -                                                               |
+        | OS-SRV-USG:terminated_at             | -                                                               |
+        | accessIPv4                           |                                                                 |
+        | accessIPv6                           |                                                                 |
+        | adminPass                            | 7poPJnDxV3Mz                                                    |
+        | config_drive                         |                                                                 |
+        | created                              | 2019-01-01T07:30:26Z                                            |
+        | description                          | -                                                               |
+        | flavor:disk                          | 1                                                               |
+        | flavor:ephemeral                     | 0                                                               |
+        | flavor:extra_specs                   | {}                                                              |
+        | flavor:original_name                 | m1.tiny                                                         |
+        | flavor:ram                           | 512                                                             |
+        | flavor:swap                          | 0                                                               |
+        | flavor:vcpus                         | 1                                                               |
+        | hostId                               |                                                                 |
+        | host_status                          |                                                                 |
+        | id                                   | d330f73f-2d78-4f59-8ea2-6fa1b878d6a5                            |
+        | image                                | cirros-0.3.6-x86_64-disk (85d165f0-bc7a-43d5-850b-4a8e89e57a66) |
+        | key_name                             | -                                                               |
+        | locked                               | False                                                           |
+        | metadata                             | {}                                                              |
+        | name                                 | backend1                                                        |
+        | os-extended-volumes:volumes_attached | []                                                              |
+        | progress                             | 0                                                               |
+        | security_groups                      | default                                                         |
+        | status                               | BUILD                                                           |
+        | tags                                 | []                                                              |
+        | tenant_id                            | d3b83ed3f2504a8699c9528a2297fea7                                |
+        | trusted_image_certificates           | -                                                               |
+        | updated                              | 2019-01-01T07:30:27Z                                            |
+        | user_id                              | fdf37c6259544a9294ae8463e9be063c                                |
+        +--------------------------------------+-----------------------------------------------------------------+
+
+        $ openstack --os-region-name CentralRegion server list
+
+        +--------------------------------------+----------+--------+------------+-------------+------------------+
+        | ID                                   | Name     | Status | Task State | Power State | Networks         |
+        +--------------------------------------+----------+--------+------------+-------------+------------------+
+        | d330f73f-2d78-4f59-8ea2-6fa1b878d6a5 | backend1 | ACTIVE | -          | Running     | net1=10.0.10.152 |
+        | 72a4d0b0-88bc-41c5-9cb1-0965a5f3008f | backend2 | ACTIVE | -          | Running     | net1=10.0.10.176 |
+        +--------------------------------------+----------+--------+------------+-------------+------------------+
+
+  - Console in the instances with user 'cirros' and password of 'cubswin:)'.
+    Then run the following commands to simulate a web server.
+
+    .. note::
+
+        If using cirros 0.4.0 and above, Console in the instances with user
+        'cirros' and password of 'gocubsgo'.
+
+    .. code-block:: console
+
+        $ sudo ip netns exec dhcp-$net1_id ssh cirros@10.0.10.152
+        $ sudo ip netns exec dhcp-$net1_id ssh cirros@10.0.10.176
+
+        $ MYIP=$(ifconfig eth0| grep 'inet addr'| awk -F: '{print $2}'| awk '{print $1}')
+        $ while true; do echo -e "HTTP/1.0 200 OK\r\n\r\nWelcome to $MYIP" | sudo nc -l -p 80 ; done&
+
+    The Octavia installed in node1 and node2 are two standalone services,
+    here we take RegionOne as an example.
+
+  - Create a load balancer for subnet1 in RegionOne.
+
+    .. code-block:: console
+
+        $ openstack --os-region-name RegionOne loadbalancer create --name lb1 --vip-subnet-id $subnet1_id
+
+        +---------------------+--------------------------------------+
+        | Field               | Value                                |
+        +---------------------+--------------------------------------+
+        | admin_state_up      | True                                 |
+        | created_at          | 2019-01-01T07:37:46                  |
+        | description         |                                      |
+        | flavor              |                                      |
+        | id                  | bbb5480a-a6ec-4cea-a77d-4872a94aca5c |
+        | listeners           |                                      |
+        | name                | lb1                                  |
+        | operating_status    | OFFLINE                              |
+        | pools               |                                      |
+        | project_id          | d3b83ed3f2504a8699c9528a2297fea7     |
+        | provider            | amphora                              |
+        | provisioning_status | PENDING_CREATE                       |
+        | updated_at          | None                                 |
+        | vip_address         | 10.0.10.189                          |
+        | vip_network_id      | 9dcdcb56-358f-40b1-9e3f-6ed6bae6db7d |
+        | vip_port_id         | 759370eb-5f50-4229-be7e-0ca7aefe04db |
+        | vip_qos_policy_id   | None                                 |
+        | vip_subnet_id       | 39ccf811-b188-4ccf-a643-dd7669a413c2 |
+        +---------------------+--------------------------------------+
+
+    Create a listener for the load balancer after the status of the load
+    balancer is 'ACTIVE'. Please note that it may take some time for the
+    load balancer to become 'ACTIVE'.
+
+    .. code-block:: console
+
+        $ openstack --os-region-name RegionOne loadbalancer list
+
+        +--------------------------------------+------+----------------------------------+-------------+---------------------+----------+
+        | id                                   | name | project_id                       | vip_address | provisioning_status | provider |
+        +--------------------------------------+------+----------------------------------+-------------+---------------------+----------+
+        | bbb5480a-a6ec-4cea-a77d-4872a94aca5c | lb1  | d3b83ed3f2504a8699c9528a2297fea7 | 10.0.10.189 | ACTIVE              | amphora  |
+        +--------------------------------------+------+----------------------------------+-------------+---------------------+----------+
+
+        $ openstack --os-region-name RegionOne loadbalancer listener create --protocol HTTP --protocol-port 80 --name listener1 lb1
+
+        +---------------------------+--------------------------------------+
+        | Field                     | Value                                |
+        +---------------------------+--------------------------------------+
+        | admin_state_up            | True                                 |
+        | connection_limit          | -1                                   |
+        | created_at                | 2019-01-01T07:44:21                  |
+        | default_pool_id           | None                                 |
+        | default_tls_container_ref | None                                 |
+        | description               |                                      |
+        | id                        | ec9d2e51-25ab-4c50-83cb-15f726d366ec |
+        | insert_headers            | None                                 |
+        | l7policies                |                                      |
+        | loadbalancers             | bbb5480a-a6ec-4cea-a77d-4872a94aca5c |
+        | name                      | listener1                            |
+        | operating_status          | OFFLINE                              |
+        | project_id                | d3b83ed3f2504a8699c9528a2297fea7     |
+        | protocol                  | HTTP                                 |
+        | protocol_port             | 80                                   |
+        | provisioning_status       | PENDING_CREATE                       |
+        | sni_container_refs        | []                                   |
+        | timeout_client_data       | 50000                                |
+        | timeout_member_connect    | 5000                                 |
+        | timeout_member_data       | 50000                                |
+        | timeout_tcp_inspect       | 0                                    |
+        | updated_at                | None                                 |
+        +---------------------------+--------------------------------------+
+
+  - Create a pool for the listener after the status of the load balancer is 'ACTIVE'.
+
+    .. code-block:: console
+
+        $ openstack --os-region-name RegionOne loadbalancer pool create --lb-algorithm ROUND_ROBIN --listener listener1 --protocol HTTP --name pool1
+
+        +---------------------+--------------------------------------+
+        | Field               | Value                                |
+        +---------------------+--------------------------------------+
+        | admin_state_up      | True                                 |
+        | created_at          | 2019-01-01T07:46:21                  |
+        | description         |                                      |
+        | healthmonitor_id    |                                      |
+        | id                  | 7560b064-cdbe-4fa2-ae50-f66ad67fb575 |
+        | lb_algorithm        | ROUND_ROBIN                          |
+        | listeners           | ec9d2e51-25ab-4c50-83cb-15f726d366ec |
+        | loadbalancers       | bbb5480a-a6ec-4cea-a77d-4872a94aca5c |
+        | members             |                                      |
+        | name                | pool1                                |
+        | operating_status    | OFFLINE                              |
+        | project_id          | d3b83ed3f2504a8699c9528a2297fea7     |
+        | protocol            | HTTP                                 |
+        | provisioning_status | PENDING_CREATE                       |
+        | session_persistence | None                                 |
+        | updated_at          | None                                 |
+        +---------------------+--------------------------------------+
+
+  - Add two instances to the pool as members, after the status of the load
+    balancer is 'ACTIVE'.
+
+    .. code-block:: console
+
+        $  openstack --os-region-name RegionOne loadbalancer member create --subnet $subnet1_id --address $backend1_ip  --protocol-port 80 pool1
+
+        +---------------------+--------------------------------------+
+        | Field               | Value                                |
+        +---------------------+--------------------------------------+
+        | address             | 10.0.10.152                          |
+        | admin_state_up      | True                                 |
+        | created_at          | 2019-01-01T07:49:04                  |
+        | id                  | 4e6ce567-0710-4a29-a98f-ab766e4963ab |
+        | name                |                                      |
+        | operating_status    | NO_MONITOR                           |
+        | project_id          | d3b83ed3f2504a8699c9528a2297fea7     |
+        | protocol_port       | 80                                   |
+        | provisioning_status | PENDING_CREATE                       |
+        | subnet_id           | 39ccf811-b188-4ccf-a643-dd7669a413c2 |
+        | updated_at          | None                                 |
+        | weight              | 1                                    |
+        | monitor_port        | None                                 |
+        | monitor_address     | None                                 |
+        | backup              | False                                |
+        +---------------------+--------------------------------------+
+
+        $ openstack --os-region-name RegionOne loadbalancer member create --subnet $subnet1_id --address $backend2_ip  --protocol-port 80 pool1
+
+        +---------------------+--------------------------------------+
+        | Field               | Value                                |
+        +---------------------+--------------------------------------+
+        | address             | 10.0.10.176                          |
+        | admin_state_up      | True                                 |
+        | created_at          | 2019-01-01T07:50:06                  |
+        | id                  | 1e8ab609-a7e9-44af-b37f-69b494b40d01 |
+        | name                |                                      |
+        | operating_status    | NO_MONITOR                           |
+        | project_id          | d3b83ed3f2504a8699c9528a2297fea7     |
+        | protocol_port       | 80                                   |
+        | provisioning_status | PENDING_CREATE                       |
+        | subnet_id           | 39ccf811-b188-4ccf-a643-dd7669a413c2 |
+        | updated_at          | None                                 |
+        | weight              | 1                                    |
+        | monitor_port        | None                                 |
+        | monitor_address     | None                                 |
+        | backup              | False                                |
+        +---------------------+--------------------------------------+
+
+  - Verify load balancing. Request the VIP twice.
+
+    .. code-block:: console
+
+        $ sudo ip netns exec dhcp-$net1_id curl -v $VIP
+
+        * Rebuilt URL to: 10.0.10.189/
+        *   Trying 10.0.10.189...
+        * Connected to 10.0.10.189 (10.0.10.189) port 80 (#0)
+        > GET / HTTP/1.1
+        > Host: 10.0.10.189
+        > User-Agent: curl/7.47.0
+        > Accept: */*
+        >
+        * HTTP 1.0, assume close after body
+        < HTTP/1.0 200 OK
+        <
+        Welcome to 10.0.10.152
+        * Closing connection 0
+
+        * Rebuilt URL to: 10.0.10.189/
+        *   Trying 10.0.10.189...
+        * Connected to 10.0.10.189 (10.0.10.189) port 80 (#0)
+        > GET / HTTP/1.1
+        > Host: 10.0.10.189
+        > User-Agent: curl/7.47.0
+        > Accept: */*
+        >
+        * HTTP 1.0, assume close after body
+        < HTTP/1.0 200 OK
+        <
+        Welcome to 10.0.10.176
+        * Closing connection 0
+
+- 2 LBaaS members in one network but in different regions
+
+  - List all available flavors in RegionTwo
+
+    .. code-block:: console
+
+        $ openstack --os-region-name RegionTwo flavor list
+
+        +----+-----------+-------+------+-----------+-------+-----------+
+        | ID | Name      |   RAM | Disk | Ephemeral | VCPUs | Is Public |
+        +----+-----------+-------+------+-----------+-------+-----------+
+        | 1  | m1.tiny   |   512 |    1 |         0 |     1 | True      |
+        | 2  | m1.small  |  2048 |   20 |         0 |     1 | True      |
+        | 3  | m1.medium |  4096 |   40 |         0 |     2 | True      |
+        | 4  | m1.large  |  8192 |   80 |         0 |     4 | True      |
+        | 42 | m1.nano   |    64 |    0 |         0 |     1 | True      |
+        | 5  | m1.xlarge | 16384 |  160 |         0 |     8 | True      |
+        | 84 | m1.micro  |   128 |    0 |         0 |     1 | True      |
+        | c1 | cirros256 |   256 |    0 |         0 |     1 | True      |
+        | d1 | ds512M    |   512 |    5 |         0 |     1 | True      |
+        | d2 | ds1G      |  1024 |   10 |         0 |     1 | True      |
+        | d3 | ds2G      |  2048 |   10 |         0 |     2 | True      |
+        | d4 | ds4G      |  4096 |   20 |         0 |     4 | True      |
+        +----+-----------+-------+------+-----------+-------+-----------+
+
+  - List all available images in RegionTwo
+
+    .. code-block:: console
+
+        $ openstack --os-region-name RegionTwo image list
+
+        +--------------------------------------+--------------------------+--------+
+        | ID                                   | Name                     | Status |
+        +--------------------------------------+--------------------------+--------+
+        | 471ed2cb-8004-4973-9210-b96463b2c668 | amphora-x64-haproxy      | active |
+        | 85d165f0-bc7a-43d5-850b-4a8e89e57a66 | cirros-0.3.6-x86_64-disk | active |
+        +--------------------------------------+--------------------------+--------+
+
+  - Create an instance in RegionTwo, which resides in subnet1
+
+    .. code-block:: console
+
+        $ openstack --os-region-name CentralRegion server create --flavor 1 --image $image_id --nic net-id=$net1_id --availability-zone az2 backend3
+
+        +-------------------------------------+-----------------------------------------------------------------+
+        | Field                               | Value                                                           |
+        +-------------------------------------+-----------------------------------------------------------------+
+        | OS-DCF:diskConfig                   | MANUAL                                                          |
+        | OS-EXT-AZ:availability_zone         | az2                                                             |
+        | OS-EXT-SRV-ATTR:host                | None                                                            |
+        | OS-EXT-SRV-ATTR:hypervisor_hostname | None                                                            |
+        | OS-EXT-SRV-ATTR:instance_name       |                                                                 |
+        | OS-EXT-STS:power_state              | NOSTATE                                                         |
+        | OS-EXT-STS:task_state               | scheduling                                                      |
+        | OS-EXT-STS:vm_state                 | building                                                        |
+        | OS-SRV-USG:launched_at              | None                                                            |
+        | OS-SRV-USG:terminated_at            | None                                                            |
+        | accessIPv4                          |                                                                 |
+        | accessIPv6                          |                                                                 |
+        | addresses                           |                                                                 |
+        | adminPass                           | rpV9MLzPGSvB                                                    |
+        | config_drive                        |                                                                 |
+        | created                             | 2019-01-01T07:56:41Z                                            |
+        | flavor                              | m1.tiny (1)                                                     |
+        | hostId                              |                                                                 |
+        | id                                  | b27539fb-4c98-4f0c-b3f8-bc6744659f67                            |
+        | image                               | cirros-0.3.6-x86_64-disk (85d165f0-bc7a-43d5-850b-4a8e89e57a66) |
+        | key_name                            | None                                                            |
+        | name                                | backend3                                                        |
+        | progress                            | 0                                                               |
+        | project_id                          | d3b83ed3f2504a8699c9528a2297fea7                                |
+        | properties                          |                                                                 |
+        | security_groups                     | name='default'                                                  |
+        | status                              | BUILD                                                           |
+        | updated                             | 2019-01-01T07:56:42Z                                            |
+        | user_id                             | fdf37c6259544a9294ae8463e9be063c                                |
+        | volumes_attached                    |                                                                 |
+        +-------------------------------------+-----------------------------------------------------------------+
+
+  - Console in the instances with user 'cirros' and password of 'cubswin:)'.
+    Then run the following commands to simulate a web server.
+
+    .. code-block:: console
+
+        $ sudo ip netns exec dhcp-$net1_id ssh cirros@$backend3_ip
+
+        $ MYIP=$(ifconfig eth0| grep 'inet addr'| awk -F: '{print $2}'| awk '{print $1}')
+        $ while true; do echo -e "HTTP/1.0 200 OK\r\n\r\nWelcome to $MYIP" | sudo nc -l -p 80 ; done&
+
+  - Add backend3 to the pool as a member, after the status of the load balancer is 'ACTIVE'.
+
+    .. code-block:: console
+
+        $ openstack --os-region-name RegionOne loadbalancer member create --subnet $subnet1_id --address $backend3_ip --protocol-port 80 pool1
+
+  - Verify load balancing. Request the VIP three times.
+
+    .. note:: Please note if the subnet is created in the region, just like the
+        cases before this step, either unique name or id of the subnet can be
+        used as hint. But if the subnet is not created yet, like the case for
+        backend3, users are required to use subnet id as hint instead of subnet
+        name. Because the subnet is not created in RegionOne, local neutron needs
+        to query central neutron for the subnet with id.
+
+    .. code-block:: console
+
+        $ sudo ip netns exec dhcp- curl -v $VIP
+
+        * Rebuilt URL to: 10.0.10.189/
+        *   Trying 10.0.10.189...
+        * Connected to 10.0.10.189 (10.0.10.189) port 80 (#0)
+        > GET / HTTP/1.1
+        > Host: 10.0.10.189
+        > User-Agent: curl/7.47.0
+        > Accept: */*
+        >
+        * HTTP 1.0, assume close after body
+        < HTTP/1.0 200 OK
+        <
+        Welcome to 10.0.10.152
+        * Closing connection 0
+
+        * Rebuilt URL to: 10.0.10.189/
+        *   Trying 10.0.10.189...
+        * Connected to 10.0.10.189 (10.0.10.189) port 80 (#0)
+        > GET / HTTP/1.1
+        > Host: 10.0.10.189
+        > User-Agent: curl/7.47.0
+        > Accept: */*
+        >
+        * HTTP 1.0, assume close after body
+        < HTTP/1.0 200 OK
+        <
+        Welcome to 10.0.10.176
+        * Closing connection 0
+
+        * Rebuilt URL to: 10.0.10.189/
+        *   Trying 10.0.10.189...
+        * Connected to 10.0.10.189 (10.0.10.189) port 80 (#0)
+        > GET / HTTP/1.1
+        > Host: 10.0.10.189
+        > User-Agent: curl/7.47.0
+        > Accept: */*
+        >
+        * HTTP 1.0, assume close after body
+        < HTTP/1.0 200 OK
+        <
+        Welcome to 10.0.10.186
+        * Closing connection 0
+
+- 3 LBaaS across members in different networks and different regions
+
+  - Create net2 in CentralRegion
+
+    .. code-block:: console
+
+        $ openstack --os-region-name CentralRegion network create net2
+
+        +---------------------------+--------------------------------------+
+        | Field                     | Value                                |
+        +---------------------------+--------------------------------------+
+        | admin_state_up            | UP                                   |
+        | availability_zone_hints   |                                      |
+        | availability_zones        | None                                 |
+        | created_at                | None                                 |
+        | description               | None                                 |
+        | dns_domain                | None                                 |
+        | id                        | f0ea9608-2d6e-4272-a596-2dc3a725eddc |
+        | ipv4_address_scope        | None                                 |
+        | ipv6_address_scope        | None                                 |
+        | is_default                | None                                 |
+        | is_vlan_transparent       | None                                 |
+        | location                  | None                                 |
+        | mtu                       | None                                 |
+        | name                      | net2                                 |
+        | port_security_enabled     | False                                |
+        | project_id                | d3b83ed3f2504a8699c9528a2297fea7     |
+        | provider:network_type     | vxlan                                |
+        | provider:physical_network | None                                 |
+        | provider:segmentation_id  | 1088                                 |
+        | qos_policy_id             | None                                 |
+        | revision_number           | None                                 |
+        | router:external           | Internal                             |
+        | segments                  | None                                 |
+        | shared                    | False                                |
+        | status                    | ACTIVE                               |
+        | subnets                   |                                      |
+        | tags                      |                                      |
+        | updated_at                | None                                 |
+        +---------------------------+--------------------------------------+
+
+  - Create a subnet in net2
+
+    .. code-block:: console
+
+        $ openstack --os-region-name CentralRegion subnet create --subnet-range 10.0.20.0/24 --gateway none --network net2 subnet2
+
+        +-------------------+--------------------------------------+
+        | Field             | Value                                |
+        +-------------------+--------------------------------------+
+        | allocation_pools  | 10.0.20.1-10.0.20.254                |
+        | cidr              | 10.0.20.0/24                         |
+        | created_at        | 2019-01-01T07:59:53Z                 |
+        | description       |                                      |
+        | dns_nameservers   |                                      |
+        | enable_dhcp       | True                                 |
+        | gateway_ip        | None                                 |
+        | host_routes       |                                      |
+        | id                | 4c05a73d-fa1c-46a9-982f-6683b0d1cb2a |
+        | ip_version        | 4                                    |
+        | ipv6_address_mode | None                                 |
+        | ipv6_ra_mode      | None                                 |
+        | location          | None                                 |
+        | name              | subnet2                              |
+        | network_id        | f0ea9608-2d6e-4272-a596-2dc3a725eddc |
+        | project_id        | d3b83ed3f2504a8699c9528a2297fea7     |
+        | revision_number   | 0                                    |
+        | segment_id        | None                                 |
+        | service_types     | None                                 |
+        | subnetpool_id     | None                                 |
+        | tags              |                                      |
+        | updated_at        | 2019-01-01T07:59:53Z                 |
+        +-------------------+--------------------------------------+
+
+  - List all available flavors in RegionTwo
+
+    .. code-block:: console
+
+        $ openstack --os-region-name RegionTwo flavor list
+
+        +----+-----------+-------+------+-----------+-------+-----------+
+        | ID | Name      |   RAM | Disk | Ephemeral | VCPUs | Is Public |
+        +----+-----------+-------+------+-----------+-------+-----------+
+        | 1  | m1.tiny   |   512 |    1 |         0 |     1 | True      |
+        | 2  | m1.small  |  2048 |   20 |         0 |     1 | True      |
+        | 3  | m1.medium |  4096 |   40 |         0 |     2 | True      |
+        | 4  | m1.large  |  8192 |   80 |         0 |     4 | True      |
+        | 42 | m1.nano   |    64 |    0 |         0 |     1 | True      |
+        | 5  | m1.xlarge | 16384 |  160 |         0 |     8 | True      |
+        | 84 | m1.micro  |   128 |    0 |         0 |     1 | True      |
+        | c1 | cirros256 |   256 |    0 |         0 |     1 | True      |
+        | d1 | ds512M    |   512 |    5 |         0 |     1 | True      |
+        | d2 | ds1G      |  1024 |   10 |         0 |     1 | True      |
+        | d3 | ds2G      |  2048 |   10 |         0 |     2 | True      |
+        | d4 | ds4G      |  4096 |   20 |         0 |     4 | True      |
+        +----+-----------+-------+------+-----------+-------+-----------+
+
+  - List all available images in RegionTwo
+
+    .. code-block:: console
+
+        $ openstack --os-region-name RegionTwo image list
+
+        +--------------------------------------+--------------------------+--------+
+        | ID                                   | Name                     | Status |
+        +--------------------------------------+--------------------------+--------+
+        | 471ed2cb-8004-4973-9210-b96463b2c668 | amphora-x64-haproxy      | active |
+        | 85d165f0-bc7a-43d5-850b-4a8e89e57a66 | cirros-0.3.6-x86_64-disk | active |
+        +--------------------------------------+--------------------------+--------+
+
+  - Create an instance in RegionTwo, which resides in subnet2
+
+    .. code-block:: console
+
+        $ openstack --os-region-name CentralRegion server create --flavor 1 --image $image_id --nic net-id=$net2_id --availability-zone az2 backend4
+
+        +-------------------------------------+-----------------------------------------------------------------+
+        | Field                               | Value                                                           |
+        +-------------------------------------+-----------------------------------------------------------------+
+        | OS-DCF:diskConfig                   | MANUAL                                                          |
+        | OS-EXT-AZ:availability_zone         | az2                                                             |
+        | OS-EXT-SRV-ATTR:host                | None                                                            |
+        | OS-EXT-SRV-ATTR:hypervisor_hostname | None                                                            |
+        | OS-EXT-SRV-ATTR:instance_name       |                                                                 |
+        | OS-EXT-STS:power_state              | NOSTATE                                                         |
+        | OS-EXT-STS:task_state               | scheduling                                                      |
+        | OS-EXT-STS:vm_state                 | building                                                        |
+        | OS-SRV-USG:launched_at              | None                                                            |
+        | OS-SRV-USG:terminated_at            | None                                                            |
+        | accessIPv4                          |                                                                 |
+        | accessIPv6                          |                                                                 |
+        | addresses                           |                                                                 |
+        | adminPass                           | jHY5xdqgxezb                                                    |
+        | config_drive                        |                                                                 |
+        | created                             | 2019-01-01T08:02:50Z                                            |
+        | flavor                              | m1.tiny (1)                                                     |
+        | hostId                              |                                                                 |
+        | id                                  | 43bcdc80-6492-4a88-90dd-a979c73219a1                            |
+        | image                               | cirros-0.3.6-x86_64-disk (85d165f0-bc7a-43d5-850b-4a8e89e57a66) |
+        | key_name                            | None                                                            |
+        | name                                | backend4                                                        |
+        | progress                            | 0                                                               |
+        | project_id                          | d3b83ed3f2504a8699c9528a2297fea7                                |
+        | properties                          |                                                                 |
+        | security_groups                     | name='default'                                                  |
+        | status                              | BUILD                                                           |
+        | updated                             | 2019-01-01T08:02:51Z                                            |
+        | user_id                             | fdf37c6259544a9294ae8463e9be063c                                |
+        | volumes_attached                    |                                                                 |
+        +-------------------------------------+-----------------------------------------------------------------+
+
+  - Console in the instances with user 'cirros' and password of 'cubswin:)'. Then run the following commands to simulate a web server.
+
+    .. code-block:: console
+
+        $ sudo ip netns exec dhcp-$net2_id ssh cirros@$backend4_ip
+
+        $ MYIP=$(ifconfig eth0| grep 'inet addr'| awk -F: '{print $2}'| awk '{print $1}')
+        $ while true; do echo -e "HTTP/1.0 200 OK\r\n\r\nWelcome to $MYIP" | sudo nc -l -p 80 ; done&
+
+  - Add the instance to the pool as a member, after the status of the load balancer is 'ACTIVE'.
+
+    .. code-block:: console
+
+        $ openstack --os-region-name RegionOne loadbalancer member create --subnet $subnet2_id --address $backend4_ip --protocol-port 80 pool1
+
+  - Verify load balancing. Request the VIP four times.
+
+    .. code-block:: console
+
+        $ sudo ip netns exec dhcp- curl -v $VIP
+
+        * Rebuilt URL to: 10.0.10.189/
+        *   Trying 10.0.10.189...
+        * Connected to 10.0.10.189 (10.0.10.189) port 80 (#0)
+        > GET / HTTP/1.1
+        > Host: 10.0.10.189
+        > User-Agent: curl/7.47.0
+        > Accept: */*
+        >
+        * HTTP 1.0, assume close after body
+        < HTTP/1.0 200 OK
+        <
+        Welcome to 10.0.10.152
+        * Closing connection 0
+
+        * Rebuilt URL to: 10.0.10.189/
+        *   Trying 10.0.10.189...
+        * Connected to 10.0.10.189 (10.0.10.189) port 80 (#0)
+        > GET / HTTP/1.1
+        > Host: 10.0.10.189
+        > User-Agent: curl/7.47.0
+        > Accept: */*
+        >
+        * HTTP 1.0, assume close after body
+        < HTTP/1.0 200 OK
+        <
+        Welcome to 10.0.10.176
+        * Closing connection 0
+
+        * Rebuilt URL to: 10.0.10.189/
+        *   Trying 10.0.10.189...
+        * Connected to 10.0.10.189 (10.0.10.189) port 80 (#0)
+        > GET / HTTP/1.1
+        > Host: 10.0.10.189
+        > User-Agent: curl/7.47.0
+        > Accept: */*
+        >
+        * HTTP 1.0, assume close after body
+        < HTTP/1.0 200 OK
+        <
+        Welcome to 10.0.10.186
+        * Closing connection 0
+
+        * Rebuilt URL to: 10.0.10.189/
+        *   Trying 10.0.10.189...
+        * Connected to 10.0.10.189 (10.0.10.189) port 80 (#0)
+        > GET / HTTP/1.1
+        > Host: 10.0.10.189
+        > User-Agent: curl/7.47.0
+        > Accept: */*
+        >
+        * HTTP 1.0, assume close after body
+        < HTTP/1.0 200 OK
+        <
+        Welcome to 10.0.20.64
+        * Closing connection 0
\ No newline at end of file