LAG role

This role facilitates the configuration of link aggregation group (LAG) attributes, and supports the creation and deletion of a LAG and its member ports. It also supports the configuration of an interface type as a static or dynamic LAG, hash scheme in os6 devices, and minimum required link. This role is abstracted for Dell EMC PowerSwitch platforms running Dell EMC OS6.

The LAG role requires an SSH connection for connectivity to a Dell EMC OS6 device. You can use any of the built-in OS connection variables.

Role variables

Role is abstracted using the ansible_network_os variable that can take dellemc.os6.os6 as a value
Object drives the tasks in this role
os6_lag (dictionary) contains the hostname (dictionary)
Hostname is the value of the hostname variable that corresponds to the name of the OS device
Any role variable with a corresponding state variable setting to absent negates the configuration of that variable
Setting an empty value to any variable negates the corresponding configuration
os6_lag (dictionary) holds a dictionary with the port-channel ID key in Po <ID> format (1 to 128 for os6)
Variables and values are case-sensitive

port-channel ID keys

Key	Type	Description	Support
`type`	string: static,dynamic	Configures the interface either as a static or dynamic LAG	os6
`min_links`	integer	Configures the minimum number of links in the LAG that must be in operup status (1 to 8), field needs to be left blank to remove the minimum number of links	os6
`hash`	integer	Configures the hash value for OS6 devices (1 to 7), field needs to be left blank to remove the hash value	os6
`channel_members`	list	Specifies the list of port members to be associated to the port channel (see `channel_members.*`)	os6
`channel_members.port`	string	Specifies valid OS6 interface names to be configured as port channel members	os6
`channel_members.state`	string: absent,present	Deletes the port member association if set to absent	os6
`state`	string: absent,present*	Deletes the LAG corresponding to the port channel ID if set to absent	os6

Note

: Asterisk (*) denotes the default value if none is specified.

Connection variables

Ansible Dell EMC network roles require connection information to establish communication with the nodes in your inventory. This information can exist in the Ansible group_vars or host_vars directories or inventory, or in the playbook itself.

Key	Required	Choices	Description
`ansible_host`	yes		Specifies the hostname or address for connecting to the remote device over the specified transport
`ansible_port`	no		Specifies the port used to build the connection to the remote device; if value is unspecified, the `ANSIBLE_REMOTE_PORT` option is used; it defaults to 22
`ansible_ssh_user`	no		Specifies the username that authenticates the CLI login for the connection to the remote device; if value is unspecified, the `ANSIBLE_REMOTE_USER` environment variable value is used
`ansible_ssh_pass`	no		Specifies the password that authenticates the connection to the remote device.
`ansible_become`	no	yes, no*	Instructs the module to enter privileged mode on the remote device before sending any commands; if value is unspecified, the `ANSIBLE_BECOME` environment variable value is used, and the device attempts to execute all commands in non-privileged mode
`ansible_become_method`	no	enable, sudo*	Instructs the module to allow the become method to be specified for handling privilege escalation; if value is unspecified, the `ANSIBLE_BECOME_METHOD` environment variable value is used.
`ansible_become_pass`	no		Specifies the password to use if required to enter privileged mode on the remote device; if `ansible_become` is set to no this key is not applicable.
`ansible_network_os`	yes	os6, null*	Loads the correct terminal and cliconf plugins to communicate with the remote device.

Note

: Asterisk (*) denotes the default value if none is specified.

Example playbook

This example uses the os6_lag role to setup port channel ID and description, and configures hash algorithm and minimum links for the LAG. Channel members can be configured for the port-channel either in static or dynamic mode. You can also delete the LAG with the port channel ID or delete the members associated to it. This example creates a hosts file with the switch details and corresponding variables. The hosts file should define the ansible_network_os variable with corresponding Dell EMC OS6 name.

When os6_cfg_generate is set to true, the variable generates the configuration commands as a .part file in build_dir path. By default, the variable is set to false. It writes a simple playbook that only references the os6-lag role.

Sample hosts file

switch1 ansible_host= <ip_address>

Sample host_vars/switch1

hostname: switch1
ansible_become: yes
ansible_become_method: enable
ansible_become_pass: xxxxx
ansible_ssh_user: xxxxx
ansible_ssh_pass: xxxxx
ansible_network_os: dellemc.os6.os6
build_dir: ../temp/temp_os6

os6_lag:
    Po 127:
      type: static
      hash: 7
      min_links: 3
      channel_members:
        - port: Fo4/0/1
          state: present
        - port: Fo4/0/1
          state: present
      state: present

Simple playbook to setup system — switch1.yaml

- hosts: switch1
  roles:
     - dellemc.os6.os6_lag

Run

ansible-playbook -i hosts switch1.yaml