where you have installed and started Open vSwitch, you will need to start some
central components.
-Begin by making ovsdb-server listen on a TCP port by running:
-
-```
-ovs-appctl -t ovsdb-server ovsdb-server/add-remote ptcp:6640
-```
-
Start ovn-northd daemon. This daemon translates networking intent from Docker
stored in the OVN_Northbound database to logical flows in OVN_Southbound
database.
kernel by doing a "lsmod | grep $ENCAP_TYPE".)
```
-ovs-vsctl set Open_vSwitch . external_ids:ovn-remote="tcp:$CENTRAL_IP:6640" \
- external_ids:ovn-encap-ip=$LOCAL_IP external_ids:ovn-encap-type="$ENCAP_TYPE"
+ovs-vsctl set Open_vSwitch . external_ids:ovn-remote="tcp:$CENTRAL_IP:6642" \
+ external_ids:ovn-nb="tcp:$CENTRAL_IP:6641" external_ids:ovn-encap-ip=$LOCAL_IP external_ids:ovn-encap-type="$ENCAP_TYPE"
```
And finally, start the ovn-controller. (You need to run the below command
```
Start the Open vSwitch driver on every host where you plan to create your
-containers.
+containers. (Please read a note on $OVS_PYTHON_LIBS_PATH that is used below
+at the end of this document.)
```
-ovn-docker-overlay-driver --detach
+PYTHONPATH=$OVS_PYTHON_LIBS_PATH ovn-docker-overlay-driver --detach
```
Docker has inbuilt primitives that closely match OVN's logical switches
running the following command.
```
-ovn-nbctl --db=tcp:$CENTRAL_IP:6640 lswitch-list
+ovn-nbctl --db=tcp:$CENTRAL_IP:6640 ls-list
```
* Docker creates your logical port and attaches it to the logical network
But you can look at them in the OVN database, by running:
```
-ovn-nbctl --db=tcp:$CENTRAL_IP:6640 lport-list $NID
+ovn-nbctl --db=tcp:$CENTRAL_IP:6640 lsp-list $NID
```
* You can also create a logical port and attach it to a running container.
```
Start the network driver and provide your OpenStack tenant password
-when prompted.
+when prompted. (Please read a note on $OVS_PYTHON_LIBS_PATH that is used below
+at the end of this document.)
```
-ovn-docker-underlay-driver --bridge breth0 --detach
+PYTHONPATH=$OVS_PYTHON_LIBS_PATH ovn-docker-underlay-driver --bridge breth0 \
+--detach
```
From here-on you can use the same Docker commands as described in the
Please read 'man ovn-architecture' to understand OVN's architecture in
detail.
+Note on $OVS_PYTHON_LIBS_PATH
+=============================
+
+$OVS_PYTHON_LIBS_PATH should point to the directory where Open vSwitch
+python modules are installed. If you installed Open vSwitch python
+modules via the debian package of 'python-openvswitch' or via pip by
+running 'pip install ovs', you do not need to specify the path.
+If you installed it by following the instructions in INSTALL.md, you
+should specify the path. The path in that case depends on the options passed
+to ./configure. (It is usually either '/usr/share/openvswitch/python' or
+'/usr/local/share/openvswitch/python'.)
+
[INSTALL.md]: INSTALL.md
[openvswitch-switch.README.Debian]: debian/openvswitch-switch.README.Debian
[README.RHEL]: rhel/README.RHEL