Archives For OVS

A question I’ve heard a few times, what are the command equivalencies between a standard Open vSwitch, running inside a Linux box, and the NSX vSwitch running inside ESXi? I have written this post to clarify this a bit.

There are four commands in NSX CLI that have equivalencies in the OVS world:

NVS Command OVS Command
nsx-dbctl ovs-vsctl
nsx-dpctl ovs-dpctl
nsx-appctl ovs-appctl
nsx-flowctl ovs-flowctl


ovs-dbctl command, like its OVS equivalent ovs-vsctl, Sub-commands are the same, and for example nsx-dbctl show will produce a similar output to ovs-vsctl show.

~ # nsx-dbctl show
    Manager "ssl:"
        is_connected: true
    Bridge "br-vmnic1"
        fail_mode: standalone
        Port "vmk3"
            Interface "vmk3"
        Port "vmnic1"
            Interface "vmnic1"
    Bridge br-int
        Controller "ssl:"
            is_connected: true
        Controller "unix:ovs-l3d.mgmt"
            is_connected: true
        fail_mode: secure
        Port "vNic.3000004"
            Interface "vNic.3000004"
        Port "vNic.3000006"
            Interface "vNic.3000006"
        Port "vNic.3000005"
            Interface "vNic.3000005"
    ovs_version: ""
~ #


nsx-dpctl command maps to ovs-dpctl and much like it allow you to manage Open vSwitch datapaths.

~ # nsx-dpctl show
        lookups: hit:1770781 missed:192476 lost:0
        flows: 14
        port 50331650: vmnic1
        port 50331651: vmk3
        port 50331652: vNic.3000004
        port 50331653: vNic.3000005
        port 50331654: vNic.3000006
~ #


nsx-appctl will allow the administrator to manage and configure OVS daemons. It maps to ovs-appctl command.

~ # nsx-appctl dpif/show
system@nsx-vswitch: hit:2230477 missed:148652
        flows: cur: 17, avg: 17, max: 33, life span: 1918447ms
        hourly avg: add rate: 66.907/min, del rate: 66.880/min
        daily avg: add rate: 43.476/min, del rate: 43.461/min
        overall avg: add rate: 60.918/min, del rate: 60.909/min
        br-int: hit:142949 missed:8461
                vNic.3000004 1/50331652: (system)
                vNic.3000005 2/50331653: (system)
                vNic.3000006 3/50331654: (system)
        br-vmnic1: hit:2087528 missed:140191
                vmk3 2/50331651: (system)
                vmnic1 1/50331650: (system)
~ #


nsx-flowctl is the equivalent of ovs-flowctl and will allow you to manage NSX vSwich flow tables, ports, etc.

~ # nsx-flowctl show br-bond0
OFPT_FEATURES_REPLY (xid=0x3): dpid:0000725d4492c540
n_tables:254, n_buffers:256
 1(vmnic4): addr:00:50:56:01:08:c6
     config:     0
     state:      0
     current:    1GB-FD
     advertised: 10MB-HD 10MB-FD 100MB-HD 100MB-FD 1GB-HD 1GB-FD
     supported:  10MB-HD 10MB-FD 100MB-HD 100MB-FD 1GB-HD 1GB-FD
     speed: 1000 Mbps now, 1000 Mbps max
 2(vmnic5): addr:00:50:56:01:08:c8
     config:     0
     state:      0
     current:    1GB-FD
     advertised: 10MB-HD 10MB-FD 100MB-HD 100MB-FD 1GB-HD 1GB-FD
     supported:  10MB-HD 10MB-FD 100MB-HD 100MB-FD 1GB-HD 1GB-FD
     speed: 1000 Mbps now, 1000 Mbps max
 3(vmk3): addr:00:50:56:66:57:18
     config:     0
     state:      0
     speed: 0 Mbps now, 0 Mbps max
OFPT_GET_CONFIG_REPLY (xid=0x6): frags=normal miss_send_len=0
~ #

Courteous comments are welcome.


Welcome to Part 4 for this series about OpenStack and VMware NSX. To do a quick review, in the first three parts we described the different VMware NSX components and concepts and how to install and configure them, also discussed how to install and configure the KVM and GlusterFS nodes. In this fourth part of the series we will see how to deploy OpenStack in a three-node architecture and integrate it with our existent NSX installation.

If you remember the first post where I described the components of the lab, there were three OpenStack dedicated nodes:

  • Cloud controller node
  • Neutron networking node
  • Nova compute node

Instead of installing from scratch I decided to go with one of the OpenStack distributions: RDO. What is RDO and why I decided for it? RDO is a community distribution of OpenStack sponsored by Red Hat, yes I just say Red Hat so please stop the eye rolling.

RDO is the upstream version of RHEL OpenStack Platform, the commercial version of OpenStack by Red Hat. During the last months I tried several flavors of OpenStack and while I still think that installing from scratch is the best way to learn, in fact is what I did for my first labs, RDO gives me the possibility to quickly create my testing labs. Also RHEL OP Version 4, based on RDO, is supported with VMware NSX and I really couldn’t resist myself to try it.

Installation prerequisites

Before proceeding with the installation there are some preparations we need to perform on the OpenStack nodes.

SSH key generation

Generate a new SSH key to be later distributed on the OpenStack nodes during the installation. Use ssh-keygen to generate the new key.

Neutron server preparation

In the Neutron node install NSX Open vSwitch version as described in Part 3 for the KVM nodes, the network interface configuration it’s quite similar.

With the network interface configuration files properly setup exist your SSH session and log into the VM console to create the OVS bridges like the example below.

ovs-vsctl add-br br-ex
ovs-vsctl br-set-external-id br-ex bridge-id br-ex
ovs-vsctl set Bridge br-ex fail-mode=standalone
ovs-vsctl add-port br-ex eth0

OpenStack installation

RDO relies on packstack for the installation of its different components. Packstack is a tool that will install all required software in the nodes based on an answer file. Enable RDO and EPEL repos and install openstack-packstack package.

yum install -y
yum install -y
yum install -y openstack-packstack

Once it is installed generate a new answer file, we will use this file as a template for our installation.

packstack --gen-answer-file rdo_answers.txt

Edit packstack answer file and modify the following entries, leave the rest with the default values. It is important to do not eliminate any entry or packstack execution will fail.

Deactivate services we do not want to deploy.


Nova settings.


And finally Neutron settings. Don’t set any L3 value since that part will be managed by NSX.


Launch OpenStack installation process.

packstack --answer-file rdo_answers.txt

The installation will take a while so you better grab a cup of coffee and have a look at the output while the software installs on each of the three nodes. If everything goes as expected we should see a similar message at the of the installation process.

 **** Installation completed successfully ******

Additional information:
 * Time synchronization installation was skipped. Please note that unsynchronized time on server instances might be problem for some OpenStack components.
 * File /root/keystonerc_admin has been created on OpenStack client host To use the command line tools you need to source the file.
 * To access the OpenStack Dashboard browse to
Please, find your login credentials stored in the keystonerc_admin in your home directory. 
 * Because of the kernel update the host requires reboot. 
 * Because of the kernel update the host requires reboot.
 * Because of the kernel update the host requires reboot.
 * The installation log file is available at: /var/tmp/packstack/20140617-001835-On5TCi/openstack-setup.log 
 * The generated manifests are available at: /var/tmp/packstack/20140617-001835-On5TCi/manifests 
[root@cloud-controller ~]#

Reboot the three nodes as instructed and proceed to the next step.

Configure Glance to use GlusterFS

RDO packstack cannot configure Glance to use GlusterFS as its storage backend during the installation and it has to be configured afterwards. Fortunately the necessary steps are documented on RDO site.

Stop Glance services.

service openstack-glance-registry stop
service openstack-glance-api stop

Install gluster required packages on the controller node.

yum install glusterfs-fuse glusterfs

Mount GlusterFS share and set the ownership and permissions for glance user.

mount -t glusterfs gluster.vlab.local:gv0 /var/lib/glance/images
chown -R glance:glance /var/lib/glance/images

Start Glance services.

service openstack-glance-registry start
service openstack-glance-api start

With the installation finished OpenStack Horizon dashboard should be available at http://cloud_controller_fqdn/dashboard. Log in with the user admin, the password for this user can be found in the file /root/keystonerc_admin on the cloud controller node.

[root@cloud-controller ~]# cat keystonerc_admin
export OS_USERNAME=admin
export OS_TENANT_NAME=admin
export OS_PASSWORD=cd0ed5b5f251450f
export OS_AUTH_URL=
export PS1='[\u@\h \W(keystone_admin)]\$ '
[root@cloud-controller ~]#

If login fails with an unexpected error check that firewall is deactivated in all three nodes and that all services are up and running, in some of my deployments Neutron server did not start after a reboot and I had to start it manually.

Once logged into horizon navigate to Admin -> Hypervisor and check that the KVM hypervisor is properly registered.

Screen Shot 2014-06-17 at 01.56.04

Configure the NSX integration

At this point we have a working OpenStack installation with Neutron using the Open vSwitch plugin, now we will proceed to integrate our shiny OpenStack cloud with NSX.

Install NSX Neutron plugin

VMware provides a set of RPM packages containing the NSX plugin and a VMware sanctioned version of Neutron, however I found that this packages were older than my Havana installation and didn’t want to brake any dependencies and spend hours trying to fix my installation.

A tar file containing all the source for both the plugin and Neutron itself is also available and instructions on how to compile and install it are provided in NSX documentation, during my first trials I took this path but this time I decided to use the upstream plugin instead since it was available in RDO repositories.

yum install openstack-neutron-nicira

Configure NSX plugin

Register the Neutron server as a transport node on the NSX Controller Cluster.

ovs-vsctl set-manager ssl:

Stop neutron services.

service neutron-server stop

Edit /etc/neutron/neutron.conf file and set core_plugin value to neutron.plugins.nicira.NeutronPlugin.NvpPluginV2.

Configure nvp.ini file accordingly, this file can be found in /etc/neutron/plugins/nicira.

Set NSX admin user and password.

nvp_user = admin
nvp_password = admin

Configure NSX controllers IP addresses.

nvp_controllers =

Set the default Transport Zone UUID and the L3 and L2 gateway serveices UUID, these values can be retrieved from the NSX Manager web.

default_tz_uuid = b948fd35-5737-4a30-8741-43134771d40c
default_l3_gw_service_uuid = adee048c-3776-4bd2-ade1-42ab5c90bf9e

Configure metadata for Nova instances, set metadata_dhcp_host_route to False in [DEFAULT] section. In [nvp] section set the metadata mode as access_network.

enable_metadata_access_network = True
metadata_mode = access_network

Create a [database] section and configure the connection to Neutron MySQL database, the data can be found on neutron.conf file.

connection = mysql://neutron:ac2191a8661b4b66@

FInally before start Neutron services check nvp.ini with the command neutron-check-nvp-config. You should get something like this.

[root@neutron ~]# neutron-check-nvp-config /etc/neutron/plugins/nicira/nvp.ini
----------------------- Database Options -----------------------
        connection: mysql://neutron:ac2191a8661b4b66@
        retry_interval: 10
        max_retries: 10
-----------------------    NVP Options   -----------------------
        NVP Generation Timeout -1
        Number of concurrent connections to each controller 10
        max_lp_per_bridged_ls: 5000
        max_lp_per_overlay_ls: 256
-----------------------  Cluster Options -----------------------
        requested_timeout: 30
        retries: 2
        redirects: 2
        http_timeout: 10
Number of controllers found: 1
        Controller endpoint:
                Gateway(L3GatewayServiceConfig) uuid: adee048c-3776-4bd2-ade1-42ab5c90bf9e
        Transport zones: [u'b948fd35-5737-4a30-8741-43134771d40c']
[root@neutron ~]#

Start Neutron services

service neutron-server start

Create a network neutron command line to test that everything is working as expected.

[root@cloud-controller ~(keystone_admin)]# neutron net-create nsx-test-net
Created a new network:
| Field                 | Value                                |
| admin_state_up        | True                                 |
| id                    | 24f3b23f-a938-40e7-b026-14c8fb77ff34 |
| name                  | nsx-test-net                         |
| port_security_enabled | True                                 |
| shared                | False                                |
| status                | ACTIVE                               |
| subnets               |                                      |
| tenant_id             | 4d9fbabd4c9d4fa4a2185ff7559ae4e8     |
[root@cloud-controller ~(keystone_admin)]#
[root@cloud-controller ~(keystone_admin)]# neutron net-list
| id                                   | name         | subnets |
| 24f3b23f-a938-40e7-b026-14c8fb77ff34 | nsx-test-net |         |
[root@cloud-controller ~(keystone_admin)]#

Access NSX Manager web interface, navigate to Logical Switches and confirm that a new logical switch with the same name and UUID as the new OpenStack network has been created.

Screen Shot 2014-06-21 at 22.15.20

Congratulations! We have successfully deployed a distributed installation of OpenStack with KVM as the underlying hypervisor and integrated with VMware NSX state of the art network virtualization software. In future posts out of this four article series we will discuss some tips and other parts of OpenStack and NSX. Courteous comments are welcome.


kvmWelcome to the third post of my series about OpenStack. In the first and second posts we saw in detail how to prepare the basic network infrastructure of our future OpenStack cloud using VMware NSX. In this third one we are going to install and configure the KVM compute host and the shared storage of the lab.

KVM setup

Create and install two CentOS 6.4 virtual machines with 2 vCPU, 2 GB of RAM, 2 network interfaces (E1000) and one 16GB disk. For the partitioning schema I have used the following one:

  • sda1 – 512MB – /boot
  • sda2 – Rest of the disk – LVM PV
    • lv_root – 13.5GB – /
    • lv_swap – 2GB – swap

Mark Base and Standard groups to be installed and leave the rest unchecked. Set the hostname during the installation and leave the networking configuration with the default values. Please have in mind that you will need to have a DHCP server on your network, in my case I’m using the one that comes with VMware Fusion if you don’t have one then you will have to set here a temporary IP address in order to able to install the KVM software. Once the installation is done reboot your virtual machine and open a root SSH session to proceed with the rest of the configuration tasks.

Disable SELinux with setenfornce command, also modify SELinux config to disable it during OS boot. I do not recommend to disable SELinux in a production environment but for a lab it will simplify things.

setenforce 0
cp /etc/selinux/config /etc/selinux/config.orig
sed -i s/SELINUX\=enforcing/SELINUX\=disabled/ /etc/selinux/config

Check that hardware virtualization support is activated.

egrep -i 'vmx|svm' /proc/cpuinfo

Install KVM packages.

yum install kvm libvirt python-virtinst qemu-kvm

After installing a ton of dependencies and if t nothing failed enable and start the libvirtd service.

[root@kvm1 ~]# chkconfig libvirtd on
[root@kvm1 ~]# service libvirtd start
Starting libvirtd daemon:                                  [  OK  ]
[root@kvm1 ~]#

Verify that KVM has been correctly installed and it’s loaded and running on the system.

[root@kvm1 ~]# lsmod | grep kvm
kvm_intel              53484  0
kvm                   316506  1 kvm_intel
[root@kvm1 ~]#
[root@kvm1 ~]# virsh -c qemu:///system list
 Id    Name                           State

[root@kvm1 ~]#

Hypervisor networking setup

With KVM software installed and ready we can now move on to configure the networking for both hosts and integrate them into our NSX deployment.

Disable Network Manager for both interfaces. Edit /etc/sysconfig/network-scripts/ifcfg-ethX files and change NM_CONTROLLED value to no.

By default libvirt creates virbr0 network bridge to be used for the virtual machines to access the external network through a NAT connection. We need to disable it to ensure that bridge components of Open vSwitch can load without any errors.

virsh net-destroy default
virsh net-autostart --disable default

Install Open vSwitch

Copy the NSX OVS package to the KVM host and extract it.

[root@kvm1 nsx-ovs]# tar vxfz nsx-ovs-2.1.0-build33849-rhel64_x86_64.tar.gz
[root@kvm1 nsx-ovs]#

Install Open vSwitch packages.

rpm -Uvh kmod-openvswitch-
rpm -Uvh openvswitch-

Verify that Open vSwitch service is enabled and start it.

[root@kvm1 ~]# chkconfig --list openvswitch
openvswitch     0:off   1:off   2:on    3:on    4:on    5:on    6:off
[root@kvm1 ~]#
[root@kvm1 ~]#
[root@kvm1 ~]# service openvswitch start
/etc/openvswitch/conf.db does not exist ... (warning).
Creating empty database /etc/openvswitch/conf.db           [  OK  ]
Starting ovsdb-server                                      [  OK  ]
Configuring Open vSwitch system IDs                        [  OK  ]
Inserting openvswitch module                               [  OK  ]
Starting ovs-vswitchd                                      [  OK  ]
Enabling remote OVSDB managers                             [  OK  ]
[root@kvm1 ~]#

Install nicira-ovs-hypervisor-node package, this utility provides the infrastructure for distributed routing on the hypervisor. With the installation the integration bridge br-int and OVS SSL credentials will be created.

[root@kvm1 ~]# rpm -Uvh nicira-ovs-hypervisor-node*.rpm
Preparing...                ########################################### [100%]
   1:nicira-ovs-hypervisor-n########################################### [ 50%]
   2:nicira-ovs-hypervisor-n########################################### [100%]
Running '/usr/sbin/ovs-integrate init'
successfully generated self-signed certificates..
successfully created the integration bridge..
[root@kvm1 ~]#

There are other packages like nicira-flow-stats-exporter and tcpdump-ovs but they are not needed for OVS functioning. We can proceed now with OVS configuration.

Configure Open vSwitch

The first step is to create OVS bridges for each network interface card of the hypervisor.

ovs-vsctl add-br br0
ovs-vsctl br-set-external-id br0 bridge-id br0
ovs-vsctl set Bridge br0 fail-mode=standalone
ovs-vsctl add-port br0 eth0

If you were logged in by an SSH session you have probably noticed that your connection is lost, this is because br0 interface has taken control of the networking of the host and it doesn’t have an IP address configured. To solve this access the host console and edit ifcfg-eth0 file and modify to look like this.


Next create and edit ifcfg-br0 file.


Restart the network service and test the connection.

service network restart

Repeat all the above steps for the second network interface.

Finally configure NSX Controller Cluster as manager in Open vSwitch.

ovs-vsctl set-manager ssl:

Execute ovs-vsctl show command to review OVS current configuration.

[root@kvm1 ~]# ovs-vsctl show
    Manager "ssl:"
    Bridge "br1"
        fail_mode: standalone
        Port "br1"
            Interface "br1"
                type: internal
        Port "eth1"
            Interface "eth1"
    Bridge "br0"
        fail_mode: standalone
        Port "eth0"
            Interface "eth0"
        Port "br0"
            Interface "br0"
                type: internal
    Bridge br-int
        fail_mode: secure
        Port br-int
            Interface br-int
                type: internal
    ovs_version: ""
[root@kvm1 ~]#

Register OVS in NSX Controller

With our OVS instance installed and running we can now inform NSX Controller of its existence either via NVP API or NSX Manager, in our case we will use the later.

Log into NSX Manager as admin user and go to Dashboard, from Summary of Transport Components table click Add in the Hypervisors row. Verify that Hypervisor is selected as transport node and move to the Basics screen. Enter a name for the hypervisor, usually the hostname of the server.

Screen Shot 2014-05-05 at 23.18.22

In Properties enter:

  • Integration bridge ID, for us is br-int.
  • Admin Status Enabled –  Enabled by default.

Screen Shot 2014-05-05 at 23.29.03

For the Credential screen we are going to need the SSL certificate that was created along with the integration bridge during the NSX OVS installation. The PEM certificate file is ovsclient-cert.pem and is in /etc/openvswitch directory.

[root@kvm1 ~]# cat /etc/openvswitch/ovsclient-cert.pem
[root@kvm1 ~]#

Copy the contents of the file and paste them in the Security Certificate text box.

Screen Shot 2014-05-05 at 23.36.28

Finally add the Transport Connector with the values:

  • Transport Type: STT
  • Transport Zone UUID: The transport zone, in my case the UUID corresponding to vlab-transport-zone.
  • IP Address – The address of the br0 interface of the host.

Screen Shot 2014-05-05 at 23.41.57

Click Save & View and check that Management and OpenFlow connections are up.

Screen Shot 2014-05-05 at 23.52.16

GlusterFS setup

gluster-logo-300x115I choose GlusterFS for my OpenStack lab for two reasons.  I have used it in the past so this has been a good opportunity for me to refresh and enhance my rusty gluster skills, and it’s supported as storage backend for Glance in OpenStack. Instead of going with CentOS again this time I choose Fedora 20 for my gluster VM, a real world GlusterFS cluster will have at least two node but for our lab one will be enough.

Create a Fedora x64 virtual machine with 1 vCPU, 1GB of RAM and one network interface. For the storage part use the following:

  • System disk: 16GB
  • Data disk: 72GB

Use the same partitioning schema of the KVM hosts for the system disk. Choose a Minimal installation and add the Standard group. Configure the hostname and the IP address of the node, set the root password and create a user as administrator, I’m using here my personal user jrey.

Disable SELinux.

sudo setenforce 0
sudo cp /etc/selinux/config /etc/selinux/config.orig
sudo sed -i s/SELINUX\=enforcing/SELINUX\=disabled/ /etc/selinux/config

Stop and disable firewalld.

sudo systemctl disable firewalld.service
sudo systemctl stop firewalld.service

Install GlusterFS packages. There is no need to add any additional yum repository since Gluster is included in the standard Fedora repos.

sudo systemctl install glusterfs-server

Enable Gluster services.

sudo systemctl enable glusterd.service
sudo systemctl enable glusterfsd.service

Start Gluster services.

[jrey@gluster ~]$ sudo systemctl start glusterd.service
[jrey@gluster ~]$ sudo systemctl start glusterfsd.service
[jrey@gluster ~]$
[jrey@gluster ~]$ sudo systemctl status glusterd.service
glusterd.service - GlusterFS an clustered file-system server
   Loaded: loaded (/usr/lib/systemd/system/glusterd.service; enabled)
   Active: active (running) since Mon 2014-04-28 17:17:35 CEST; 20s ago
  Process: 1496 ExecStart=/usr/sbin/glusterd -p /run/ (code=exited, status=0/SUCCESS)
 Main PID: 1497 (glusterd)
   CGroup: /system.slice/glusterd.service
           └─1497 /usr/sbin/glusterd -p /run/

Apr 28 17:17:35 gluster.vlab.local systemd[1]: Started GlusterFS an clustered file-system server.
[jrey@gluster ~]$
[jrey@gluster ~]$ sudo systemctl status glusterfsd.service
glusterfsd.service - GlusterFS brick processes (stopping only)
   Loaded: loaded (/usr/lib/systemd/system/glusterfsd.service; enabled)
   Active: active (exited) since Mon 2014-04-28 17:17:45 CEST; 15s ago
  Process: 1515 ExecStart=/bin/true (code=exited, status=0/SUCCESS)
 Main PID: 1515 (code=exited, status=0/SUCCESS)

Apr 28 17:17:45 gluster.vlab.local systemd[1]: Starting GlusterFS brick processes (stopping only)...
Apr 28 17:17:45 gluster.vlab.local systemd[1]: Started GlusterFS brick processes (stopping only).
[jrey@gluster ~]$

Since we are running a one-node cluster there is no need to add any node to the trusted pool. In case you decide to run a multinode environment you can setup the pool by running the following command on each node of the clsuter. .

gluster peer probe <IP_ADDRESS_OF_OTHER_NODE>

Edit the data disk with fdisk and create a single partition. Format the partition as XFS.

[jrey@gluster ~]$ sudo mkfs.xfs -i size=512 /dev/sdb1
meta-data=/dev/sdb1              isize=512    agcount=4, agsize=4718528 blks
         =                       sectsz=512   attr=2, projid32bit=0
data     =                       bsize=4096   blocks=18874112, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0
log      =internal log           bsize=4096   blocks=9215, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
[jrey@gluster ~]$

Create the mount point for the new filesystem, mount the partition and edit /etc/fstab accordingly to make it persistent to reboots.

sudo mkdir -p /data/glance/
sudo mount /dev/sdb1 /data/glance
sudo mkdir -p /data/glance/brick1
sudo echo "/dev/sdb1 /data/glance xfs defaults 0 0" >> /etc/fstab

Create the Gluster volume and start it.

[jrey@gluster ~]$ sudo gluster volume create gv0 gluster.vlab.local:/data/glance/brick1
volume create: gv0: success: please start the volume to access data
[jrey@gluster ~]$
[jrey@gluster ~]$ sudo gluster volume start gv0
volume start: gv0: success
[jrey@gluster ~]$
[jrey@gluster ~]$ sudo gluster volume info

Volume Name: gv0
Type: Distribute
Volume ID: d1ad2d00-6210-4856-a5eb-26ddcba77a70
Status: Started
Number of Bricks: 1
Transport-type: tcp
Brick1: gluster.vlab.local:/data/glance/brick1
[jrey@gluster ~]$

The configuration of the Gluster node is finished. In the next article we will install and configure OpenStack using the different components detailed during current and previous parts of the series.

Please feel free to add any comment or correction.


Welcome to Part 2 of this series about OpenStack and NSX. In the first part we defined the basic NSX concepts and components, installed and configured the NSX appliances and connected the NSX Controller Cluster with the NSX Manager. In this second part we will see how Transport and Logical networks are configured, get yourself comfortable because this is going to be a long post :-)

To quickly refresh our concepts remember that the logical network represents the virtual machine point of view of the network and the transport network represents the underlying physical network through its transport nodes.

Configure the Transport Network

The first step to have a fully functional NSX infrastructure is to configure the Transport Network. The Transport Network is made of the Transport Zone and the Transport Nodes. These transport nodes can be NSX appliances like Service Nodes or Gateways and hypervisors like KVM or ESXi hosts. Third-party hardware L2 Gateways can also be transport nodes but those are out of the scope of this series.

Create a Transport Zone

A Transport Zone is a representation of the physical network used to to send traffic between OVS instances. Without a transport zone the transport nodes cannot be connected to NSX so it is mandatory that you define it before performing any operation on them.

Select Network Components > Transport Layer > Transport Zones.

Screen Shot 2014-04-28 at 22.30.40

In the next screen click Add to launch the Create Transport Zone wizard. This same wizard can also be launched from the Dashboard screen in the Summary of Transport Components area click the Add button form the Zones row.

Screen Shot 2014-04-28 at 22.36.05

Enter the name of the Transport Zone and click Save & View.

Screen Shot 2014-04-28 at 22.41.43

The new transport zone will now be available.

Screen Shot 2014-04-29 at 00.11.59

With the Transport Zone created we can start configuring the transport nodes.

Configure the Transport Nodes

As we detailed in Part 1 the Service Node appliances are installed and configured independently as the rest of the appliances however they need to be added to NSX Controller Cluster in order to be able to perform the offloading function for the OVS devices.

From the Summary of Transport Components section in the Dashboard screen click Add.

Screen Shot 2014-04-29 at 00.29.14

The Create Service Node window will show up. In the first screen select Service Node as the Transport Node Type and click Next.

Screen Shot 2014-04-29 at 00.31.59

Enter the display name for the Service Node, in this case nsxsn.

Screen Shot 2014-04-29 at 00.39.15

In the Properties screen you will see three settings available.

  • Management Rendezvous Server – Used to designate the Service Node Management Rendezvous, it will proxy management traffic between NSX Controller Cluster and remote NSX Gateways.
  • Admin Status Enabled – Used to enable or disable the Transport Node.
  • Tunnel Keep Alive Spray – Used to improve the health testing of transport node’s tunnels.

For our lab leaving the default values will suffice.

Screen Shot 2014-04-29 at 00.55.46

For the next step get the SSL certificate from the Service Node. Establish an SSH session with the appliance as admin user and use the show switch certificate command. The output of the command can be a bit large, we just need the certificate itself.


Go back to the Create Service Node window and select Security Certificate as credential type and paste the certificate extracted from the Service Node in the Security Certificate text area.

Screen Shot 2014-04-29 at 01.08.43

The final step is to setup the Transport Connectors. Click Add Connector.

Screen Shot 2014-04-29 at 01.15.22

In the Create Transport Connector screen select STT as the Transport Type. Select the transport zone the we created before and enter the IP address of the Service Node.

Screen Shot 2014-04-29 at 01.20.01

Once the Connector is create click Save in the final screen and the new Service Node will be added to the NSX Controller.

Screen Shot 2014-04-29 at 01.25.08

Now we need to finish the Gateway appliance configuration in a similar way as we did with the Service Node. Again from the Dashboard and the Summary of Transport Components section, launch the Create Gateway by clicking the Add button in the Gateways row. The rest of the steps are very similar to the Service Node process.

  • Select Gateway as Transport Node Type
  • Get the SSL certificate from NSX Gateway with the show switch certificate command.
  • Configure the credentials using the SSL certificate
  • Create an STT Transport Connector and set the IP address of the Gateway

All the above Transport Node related tasks can be achieved through the command line by using the request transport-node-register command. This is a hidden command that can be used to register Service Nodes or Gateways in a NSX Controller Cluster. According to NSX documentation there are two versions of the command:

  • cert – Used for production environments
  • mgmt-ip – Used for testing environments

The first one will transmit the encoded PEM certificates to the NSX Controller while the second will use the appliance management IP as the credential. The arguments for both versions are:

  • controller-ip-url – Switch manager address of the NSX Controller Cluster, accepts IP or hostname and the TCP port to connect to.
  • ctrler-username – NSX administration account for the Controller.
  • ctrler-password – NSX administration account password.
  • mgmt-ip – The IP address of the transport node.
  • cert – As we detailed before this one is exclusive of mgmt-ip and viceversa.
  • rendezvous-yes-or-no – Simply pass yes or no to indicate that the transport node is a Management Rendezvous Server one.
  • tc-ip-address – IP address of the transport node  connector.
  • tc-zone.uuid – Transport Zone to be associated with the transport node.
  • tc-type – Encapsulation format for the transport node’s transport connector.

With those arguments a registering command for our Service Node would be like this.

request transport-node-register nsxc.vlab.local admin admin mgmt-ip no tc-id tc-uuid b948fd35-5737-4a30-8741-43134771d40c tc-type STT

Create a Gateway Service

The next step would be to setup a Gateway Service. My lab lives within VMware Fusion and for now I don’t really need an L2 or L3 Gateway Service but since the purpose of this post is to illustrate NSX I decide to configure one and let everything in place for a future expansion of the lab.

Remember that Gateway services can be of two types:

  • L2 Gateway Service – Will expand logical network by connecting it to a physical L2 segment.
  • L3 Gateway Service – Connects virtual router ports to physical to physical IP networks.

It’s important to note that in an NSX deployment you may connect only one Gateway Service, either L2 or L3, to a given L2 physical segment.

L3 Service Setup

From NSX Manager Dashboard go to Summary of Transport Components section and in Gateway Services click Add. In the first step of the Create Gateway Service wizard select the L3 Gateway Service from the drop-down menu.

Screen Shot 2014-05-03 at 13.11.51

In the second step configure the Display Name for the new service and click Next.

Screen Shot 2014-05-03 at 13.15.36

The third and final step is to bind our previously configured gateway node to the service. Click Add Gateway.

Screen Shot 2014-05-03 at 13.25.28

In the Edit Gateway pop-up select the UUID of the gateway node and the network interface to be used, leave the Failure Zone ID field blank. This last field is used for high availability of L3 services, I will try to write about this subject in a future post.

Screen Shot 2014-05-03 at 13.27.17

Click Save & View and check the newly created Gateway Service.

Screen Shot 2014-05-03 at 13.40.48

L2 Service Setup

To create a new L2 Gateway Service follow the same procedure as with L3 one and launch the Create Gateway Service wizard.

  • Select L2 Gateway Service.
  • Enter the name of the new service.
  • Add the gateway and fill in the UUID and network interface fields, this screen is slightly different since there is no Failure Zone ID field.

Screen Shot 2014-05-03 at 19.06.50

Please have in mind that the example of the above screenshot will fail because you cannot use the same gateway appliance for two different L2 or L3 Gateway Services, if you need an L2 service deploy a new gateway node and configure it following the above steps.

With this step our Transport Network is almost setup, the only part left would be to add the hypervisors to the Controller Cluster but I’ll left that part for the next article.

NSX Logical Network View

In any typical OpenStack deployment the logical network elements will usually be created and configured not through the NSX Manager but NVP API. The API would be called by OpenStack Neutron module using the neutron plugin for VMware NSX either from Horizon dashboard or Neutron command line. However I decided to explain how to create and configure the different Logical Layer elements from NSX Manager.

Before starting with a simple walk-through of the process we need first to describe the different elements of the Logical Network. NSX Logical Network provide a similar functionality of a dedicated Ethernet switch. It recreates entities like switches, routers and ports and provides management functionality for them through NVP API.

  • Logical Switch – Recreates an Ethernet-type L2 service-model, containing logical switch ports that can be configured to implement a set of security and QoS policies.
  • Logical Router – Provides L3 routing services for the logical network. Can be configured to offer other services such as NAT and routed connections to the external physical network.
  • Logical Switch Port – Represents and provides a logical connection point for virtual machines network interfaces (VIF), router patch connections or an L2 gateway connection to an external network.
  • Logical Router Port – Provides the logical connection point for a patch connection to a switch or L3 gateway connections.
  • Logical Port Attachment – This is the logical equivalent of connecting a network cable between an interface and a switch port.

Create a Logical Switch

Let’s start from the begging and create a Logical Switch. From Summary of Logical Components are in the Dashboard screen click Add in the Switches row.

Screen Shot 2014-05-05 at 22.09.20

Provide the name of new switch and click Next.

Screen Shot 2014-05-05 at 22.14.23

In Properties there are two different settings:

  • Port Isolation Enabled – This setting basically disables VM to VM communication by preventing communication between the different logical ports of the switch.
  • Replication Mode – Determines which transport node handle replication of broadcast, unknown-unicast and multicast (BUM) traffic. There are two possible values:
    • Service Node – Traffic is sent  to the NSX Service Node to be flooded to L2 logical segment. This is the default and recommended setting.
    • Source Node – BUM traffic is handled directly by the source hypervisor instead of a Service Node.

Screen Shot 2014-05-05 at 22.16.54

Next specify the transport binding for the logical switch. Click Add Binding and select the Transport Type and the Transport Zone UUID. I’ve selected STT our previously created transport zone respectively. For the transport type there are several types available:

  • STT
  • GRE
  • Bridge
  • IPsec GRE
  • IPsec STT

Screen Shot 2014-05-05 at 22.27.11

Click Save & View to review our new logical switch, leave the router connection for later.

Add Logical Switch Ports

Once one or more logical switches have been created we can start adding ports to them. Ports will provide connection points to our virtual machines. Click Add in the Logical Ports row and the Create Logical Switch Port wizard will be started.

Select the Logical Switch the port will belong to.

Screen Shot 2014-05-05 at 22.57.21

In Basics provide a descriptive name for the port, I tend to use the convention vm_name-port.

Screen Shot 2014-05-05 at 23.01.00

In the Properties screen you have the following filed available:

  • Port number – Optional parameter.
  • Admin Status Enabled – Enabled by default.
  • Logical Queue UUID – An optional parameter used to link the port to a QOS policy.

Screen Shot 2014-05-05 at 23.07.01

Leave the Mirror Targets settings with the default values and move forward to the Attachment screen. Select VIF, virtual machine interface, as Attachment Type, select a hypervisor and the network interface of the virtual machine.

Screen Shot 2014-05-06 at 01.32.23

Attachments can all be of type:

  • None
  • Extended Network Bridge
  • Mult-Domain Interconnect
  • L2 Gateway
  • Patch to logical router port
  • VTEP L2 Gateway

For example an Extended Network Bridged attachment should be configured like this.

Screen Shot 2014-05-06 at 01.36.12

Create a Logical Router

Launch the Create Logical Router dialog and set the name of the new router in the first screen.

Screen Shot 2014-05-06 at 01.44.19

In Properties select the Routing Type:

  • Routing Table – Allows to define static routes on the logical router
  • Single Default Route – Defines a single default route for all traffic, routing all traffic through the L3 Gateway connecting the router to the datacenter physical network.

Tick Enable NAT Synchronization checkbox in order to provide NAT service through this logical router and want NAT rules to survive in the event of a Gateway failover.

Replication Mode works in the same way as in the Logical Switch, Service Node is selected by default.

Screen Shot 2014-05-06 at 01.55.07

Configure the Distributed Logical Router. If the checkbox is unticked it means the logical router will be a centralized logical router and all network traffic between virtual machines will be forwarded to the NSX Service Nodes. On the contrary if you tick the checkbox it means it will be a distributed logical router and it will provide a one-hop routing of VM to VM traffic, to be able to use this feature all hypervisors running VMs using this router must be in the same transport zone.

Screen Shot 2014-05-06 at 02.03.39

Click Save & View to finish the process and review the new router. Optionally at the last step you can assign an L3 Gateway Service and configure the corresponding Logical Router Port.

Select the UUID of the desired gateway service and configure the Logical Router Port settings. In the example I choose the basic configuration since I only need to provide the IP address for the port.

Screen Shot 2014-05-06 at 02.12.52

Add a Logical Router Port

To create and assign a logical port to an existent router launch the corresponding wizard from Summary of Logical Components table in the Dashboard screen.

Select the Logical Router UUID from the drop-down.

Screen Shot 2014-05-06 at 22.12.57

Enter a name for the port and click Next to move to Properties step. The Port Number and MAC Address fields are optional, leave Admin Status Enabled checked. In the IP Addresses table add the required IP address, must be in IPv4 CIDR notation.

Screen Shot 2014-05-06 at 22.19.26

Configure the attachment. For router ports the attachments can be set to one of the following types:

  • None
  • L3 Gateway
  • Patch

For my example lab this time I configured the attachment as a Patch one. You need to select the Logical Switch UUID and the Peer Port UUID, this peer port is port in the logical switch and you have to configure it either before creating the router port or you can create it at this step.

Screen Shot 2014-05-06 at 22.36.10

Click Save to finish the creation process.

This completes the logical network part, it’s a very basic setup without any security or QOS services but I hope that you gained a better understanding of transport and logical network concepts and the relationships between their different components. In third part of the series we will review how to setup the KVM hypervisor and connect it to the NSX infrastructure. Comments, corrections or questions are always welcome.


If you follow me on Twitter or Google+ probably have seen and increased number of tweets and posts about OpenStack, DevStack, KVM and other Linux related topics. It’s no secret that I am a *nix guy however it wasn’t until last year that I really discovered OpenStack. Oh yes I knew about it, have read a ton of articles and watched some videos in YouTube but I never had the opportunity to actually play with it until I sat on a Hands on Lab about OpenStack and vSphere during VMworld in Barcelona last October. After VMworld I started a personal project to learn as much as possible about OpenStack, using some labs with KVM and vSphere to try to achieve a decent level of proficiency. Finally this year I was able to ramp up with NSX and decided to build a new lab with OpenStack, KVM and NSX and document my progress here in my blog. So without further ado here it is my first series of posts about OpenStack and NSX.

During this series we will see how to deploy OpenStack with KVM as the underlying hypervisor and VMware NSX for the networking part. I intended to create a fairly comprehensive guide here for my personal reference and as a learning exercise. All posts of the series are based on my personal experience in a lab environment.

Lab components

To illustrate the post I have created a lab with virtual machines running on VMware Fusion in my MacBook Pro, but you can use any virtualization software you want as long as it allows you to expose the virtualization extensions to the virtual machine, for the KVM compute node. We will need the following virtual machines

  • Cloud controller node
  • Nova compute node with KVM
  • Neutron networking node
  • GlusterFS storage node
  • NSX Controller
  • NSX Manager
  • NSX Service Node
  • NSX Gateway

I’ll provide the exact hardware config of each virtual machine in its own part. We will deploy OpenStack Havana using as reference one of the architectures described in OpenStack Havana installation guide.

You are probably asking yourself now why I’m using Havana when Icehouse was released just a few weeks ago? There are two reasons for this, first is that when I started to create my lab and decided to document my progress here Icehouse wasn’t out yet and after it was released I decided to stick with Havana because the NSX plugin for Neutron, OpenStack network module, has not been updated yet for Icehouse.

The software versions to be used are:

  • OpenStack Havana
  • CentOS 6.4 – For OpenStack nodes
  • Fedora 20 – For GlusterFS storage node
  • NSX for multi-hypervisor

I have another Fedora 20 virtual machine providing DNS and NTP services for the lab, I’m planning to add DHCP and OpenLDAP capabilities in the future.

NSX deployment overview

Screen Shot 2014-04-24 at 22.40.40The Network Views

The first concept you need to understand in NSX are the network views. NSX defines two network views:

  • Logical Network View
  • Transport Network View

The Logical Network View is a representation of the network services and connectivity that a virtual machine “see” in the cloud, basically for the operating system running inside the VM the logical network view is “the network” that it is connected to. The Logical Network View is completely independent from the underlying physical network. It is made of the logical ports, switches and routers that interconnects the different virtual machines within a tenant and connect them to the outside physical network. In a cloud each tenant will have its own logical network view and would isolated from other tenants views.

The Transport Network View represents the physical devices that underlie the logical networks. These devices or transport nodes, as they are referred, can be hypervisors and the network appliances interconnecting those hypervisors to the external physical network. Every one of these transport nodes must run an instance of Open vSwitch.

NSX Deployment Components

An NSX deployment will be made out of the Control Plane and Data Plane. Additionally there is a Management Plane comprised by the NSX Manager, last one is not mandatory for an OpenStack deployment but it can be useful.

NSX Control Plane

The Control Plane is made of the NSX Controller Cluster. This is an OpenFlow controller that manages all the Open vSwitch devices running on the transport nodes and a logical network manager that allow to build and maintain all the logical networks carried by the transport nodes. It provides consistency between logical network view and transport network view. Internally it has several roles to manage the different tasks it is responsible of.

  • Transport node management: Maintains connections with the different OVS instances.
  • Logical network management: Monitors when endhosts get connected and disconnected from OVS. Also implements logical connectivity and policies by configuring OVS forwarding states.
  • Data persistence and replication: Stores data from OVS devices and NVP API to provides persistence across all nodes of the cluster in case of failure.
  • API server: Handles HTTP requests from external elements.

The NSX Controller is an scalable out cluster running on x86 hardware, it supports a minimum of three nodes and a maximum of five. Single node clusters are not supported although for the lab I deployed a single-node one.

NSX Data Plane

The Data Plane will be implemented by the previously referred transport nodes, this is OVS devices and NSX appliances, managed by the Controller Cluster.

Hypervisors: The compute nodes leveraging Open vSwitch to provide network connectivity for the virtual machines.

NSX Gateway/s: The NSX Gateways formed the Gateway Service that allows a logical network to be attached to a physical network not managed by NSX. The gateways can be L2 Gateway, expands L2 logical segment to include a physical one, and L3 Gateway that maps itself to physical router port.

NSX Service Node/s: The Service Nodes are OVS enabled appliances that provide extra processing capacity by offloading network packet processing from the hypervisor virtual switches. The type of operations managed by the service nodes are for example assisting with the packet replication during broadcast/multicast operations or unknown multicast flooding in overlay logical networks.

NSX Management Plane

The NSX Management Plane is composed exclusively by the NSX Manager. Provides a different and more friendly way to interact with the NVP API, and configure the logical network components for example, through its web UI. In an OpenStack deployment there is need to use it, however it can be helpful for troubleshooting purposes.

NSX network appliances deployment

For our lab purposes create four Ubuntu x64 virtual machines with 1vCPU, 1GB of RAM, 1 network interface (E1000) and 16GB of disk.

NSX Controller

Power on the VM and on the boot screen select Automated Install.

Screen Shot 2014-04-27 at 20.49.15

The installation will take several minutes to finish. When it’s finished you will see a prompt like this in the virtual machine console.

Screen Shot 2014-04-27 at 22.42.11

Login as admin user with password admin. In a normal deployment you will configure admin user password with set admin user password but for the lab is not needed.

Set the IP address for the controller node.

nsx-controller # set network interface breth0 static
Setting IP for interface breth0...
Clearing DNS configuration...
nsx-controller # 
nsx-controller # show network interface breth0
IP config: static
MTU: 1500
MAC: 00:0c:29:92:ce:0c
Admin-Status: UP
Link-Status: UP
SNMP: disabled
nsx-controller #

Configure the hostname.

nsx-controller # set hostname nsxc
nsxc #

Next configure the default route.

nsxc # add network route
nsxc #
nsxc # show network route
Prefix/Mask         Gateway         Metric  MTU     Iface     0       intf    breth0         0       intf    breth0
nsxc #

Set the address of the DNS and NTP servers.

nsxc # add network dns-server
nsxc #
nsxc # add network ntp-server
 * Stopping NTP server ntpd                                                                                                                                                          [ OK ]
Synchronizing with NTP servers. This may take a few seconds...
27 Apr 21:03:49 ntpdate[3755]: step time server offset -7199.735794 sec
 * Starting NTP server ntpd                                                                                                                                                          [ OK ]
nsxc #

Set the management address of the control cluster.

set control-cluster management-address

Configure the IP address to be used for communication with the different transport nodes.

set control-cluster role switch_manager listen-ip

Configure the IP address to handle NVP API requests.

set control-cluster role api_provider listen-ip

Finally join the cluster, since this the first node of the cluster the IP has to be its own one.

nsxc # join control-cluster
Clearing controller state and restarting
Stopping nicira-nvp-controller: [Done]
Clearing nicira-nvp-controller's state: OK
Starting nicira-nvp-controller: CLI revert file already exists
mapping eth0 -> bridged-pif
ssh stop/waiting
ssh start/running, process 5009
mapping breth0 -> eth0
mapping breth0 -> eth0
ssh stop/waiting
ssh start/running, process 5158
Setting core limit to unlimited
Setting file descriptor limit to 100000
 nicira-nvp-controller [OK]
** Watching control-cluster history; ctrl-c to exit **
Host nsx-controller
Node ffac511c-12b3-4dd0-baa7-632df4860521 (
  04/27 22:40:42: Initializing data contact with cluster
  04/27 22:40:49: Fetching initial configuration data
  04/27 22:40:51: Join complete
nsxc #

You can check at any moment the status of the node in the cluster with the show control-cluster status command.

nsxc # show control-cluster status
Type                Status                                       Since
Join status:        Join complete                                04/27 22:40:51
Majority status:    Disconnected from cluster majority           04/27 22:53:44
Restart status:     This controller can be safely restarted      04/27 21:23:29
Cluster ID:         7837a89a-22f3-4c8c-8bef-c100886374e9
Node UUID:          7837a89a-22f3-4c8c-8bef-c100886374e9

Role                Configured status   Active status
api_provider        enabled             activated
persistence_server  enabled             activated
switch_manager      enabled             activated
logical_manager     enabled             activated
directory_server    disabled            disabled
nsxc #

In a standard NSX deployment now would the moment to add more nodes to the cluster using again the join control-cluster command with the same IP address.

NSX Gateway

Proceed with the Automated Install as in the Controller node. When the installation is done login as admin user.

Set IP address.

set network interface breth0 static

Set hostname.

set hostname nsxg

Configure the rest of the network parameters as in the Controller node and proceed to the gateway specific configuration.

nsxg # add switch manager
Waiting for the manager CA certificate to synchronize...
Manager CA certificate synchronized
nsxg #

NSX Service Node

Again launch the Automated Install and let it finish. As admin user configure the IP address…

set network interface breth0 static

…and the hostname.

set hostname nsxsn

Finish the network configuration as in the Gateway and the Controller and configure the Service Node to be aware of the Controller Cluster

add switch manager

The above command will return an error like this.

Manager CA certificate failed to synchronize.  Verify
the manager is running on the specified IP address.

It’s normal since the Transport Node will not be able to connect to the NSX Controller Cluster until the cluster has been informed, either via NVP API or NSX Manager interface, about the existence of the Transport Node.

NSX Manager

Access the NSX Manager console, you have to see a similar screen.

Screen Shot 2014-04-28 at 00.47.54

Set the IP and the hostname and configure the default route, DNS and NTP server.

set network interface breth0 static
set hostname nsxm
add network route
add network dns-server
add network ntp-server

With this we have completed the installation and initial configuration of our four NSX appliances. In a real world deployment we should have to add at least two more NSX controller nodes to our cluster and maybe one or more gateways in order to setup L2 and L3 Gateway Services. The number of Service Nodes will depend on the expected load of our cloud.

Connect the NSX Manager to the Controller Cluster

Our next step is to connect our newly crested NSX Controller Cluster with NSX Manager. Access NSX Manager web interface and login as admin user.

Screen Shot 2014-04-28 at 01.10.19

After the login the Manager will indicate that there is no Controller Cluster added.

Screen Shot 2014-04-28 at 01.15.33

Click the Add Cluster button and enter the data for the NSX Controller Cluster.

Screen Shot 2014-04-28 at 01.26.03

If the connection is successful the a new screen will show up.

Screen Shot 2014-04-28 at 01.36.29

Provide the following information:

  • Name of the cluster
  • Contact email address of the administrator
  • Automatically Use New IPs – This setting, checked by default, will add all the IP address of the members form this cluster as eligible to receive API call from the NSX Manager.
  • Make Active Cluster

In the next screen enter the IP address of your syslog server or click Use This NSX Manager to use the NSX Manager as syslog server.

Screen Shot 2014-04-28 at 01.57.43

After clicking in Configure the Manager will finish the configuration of the Controller Cluster and will go back the previous screen where we can see the new cluster we have just added to the Manager.

Screen Shot 2014-04-28 at 02.01.44

In the next post we will see how to configure NSX Transport and Logical network elements. As always comments are welcome.