Creating a VLAN network in the CLI

A VLAN network is one in which Neutron will tag traffic based on an 802.1q segmentation ID. The syntax used to create a VLAN network can be seen here:

openstack network create
--provider-network-type vlan
--provider-physical-network <provider-physical-network>
--provider-segment <provider-segment>
<name>

By default, only users with the admin role are allowed to specify provider attributes.

Up to 4,096 VLANs can be defined on a single provider interface, though some of those may be reserved by the physical switching platform for internal use. The following is an example of using the OpenStack client to create a VLAN network by the name of MyVLANNetwork.

The network will utilize the bridge or interface represented by physnet1, and the traffic will be tagged with a VLAN identifier of 300. The resulting output is as follows:

To create an additional VLAN network that utilizes the provider interface, simply specify a different segmentation ID. In the following example, VLAN 301 is used for the new network, MyVLANNetwork2. The resulting output is as follows:

When using VLAN networks, don't forget to configure the physical switch port interface as a trunk. This configuration will vary between platforms and is outside the scope of this book.

Table of Contents for Creating a VLAN network in the CLI

Create new playlist

Sign In

Sign Up

Table of Contents for
Creating a VLAN network in the CLI