# Ansible Role: cnos_vlan_sample - Switch VLAN configuration --- This role is an example of using the *cnos_vlan.py* Lenovo module in the context of CNOS switch configuration. This module allows you to work with VLAN related configurations. The operators used are overloaded to ensure control over switch VLAN configurations. The first level of VLAN configuration allows to set up the VLAN range, the VLAN tag persistence, a VLAN access map and access map filter. After passing this level, there are five VLAN arguments that will perform further configurations. They are *vlanArg1*, *vlanArg2*, *vlanArg3*, *vlanArg4*, and *vlanArg5*. The value of *vlanArg1* will determine the way following arguments will be evaluated. The results of the operation can be viewed in *results* directory. For more details, see [Lenovo modules for Ansible: cnos_vlan](http://systemx.lenovofiles.com/help/index.jsp?topic=%2Fcom.lenovo.switchmgt.ansible.doc%2Fcnos_vlan.html&cp=0_3_1_0_4_14). ## Requirements --- - Ansible version 2.2 or later ([Ansible installation documentation](http://docs.ansible.com/ansible/intro_installation.html)) - Lenovo switches running CNOS version 10.2.1.0 or later - an SSH connection to the Lenovo switch (SSH must be enabled on the network device) ## Role Variables --- Available variables are listed below, along with description. The following are mandatory inventory variables: Variable | Description --- | --- `username` | Specifies the username used to log into the switch `password` | Specifies the password used to log into the switch `enablePassword` | Configures the password used to enter Global Configuration command mode on the switch (this is an optional parameter) `hostname` | Searches the hosts file at */etc/ansible/hosts* and identifies the IP address of the switch on which the role is going to be applied `deviceType` | Specifies the type of device from where the configuration will be backed up (**g8272_cnos** - G8272, **g8296_cnos** - G8296) The values of the variables used need to be modified to fit the specific scenario in which you are deploying the solution. To change the values of the variables, you need to visits the *vars* directory of each role and edit the *main.yml* file located there. The values stored in this file will be used by Ansible when the template is executed. The syntax of *main.yml* file for variables is the following: ```