dellemc.os9/roles/os9_lag

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 and minimum required link. This role is abstracted for Dell EMC PowerSwitch platforms running Dell EMC OS9.

The LAG role requires an SSH connection for connectivity to a Dell EMC OS9 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.os9.os9 as the value
• Object drives the tasks in this role
• os9_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
• os9_lag (dictionary) holds a dictionary with the port-channel ID key in Po <ID> format (1 to 4096)
• 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	os9
min_links	integer	Configures the minimum number of links in the LAG that must be in operup status (1 to 64 for os9)	os9
lacp	dictionary	Specifies LACP fast-switchover or long timeout options	os9
lacp.fast_switchover	boolean	Configures the fast-switchover option if set to true	os9
lacp.long_timeout	boolean	Configures the long-timeout option if set to true	os9
lacp_system_priority	integer	Configures the LACP system-priority value (1 to 65535)	os9
lacp_ungroup_vlt	boolean	Configures all VLT LACP members to be switchports if set to true	os9
lacp_ungroup	list	Specifies the list of port-channels to become switchports (see lacp_ungroup.*)	os9
lacp_ungroup.port_channel	integer (required)	Specifies valid port-channel numbers	os9
lacp_ungroup.state	string: present,absent*	Deletes the ungroup association if set to absent	os9
channel_members	list	Specifies the list of port members to be associated to the port-channel (see channel_members.*)	os9
channel_members.port	string	Specifies valid os9	os9
channel_members.state	string: absent,present	Deletes the port member association if set to absent	os9
state	string: absent,present*	Deletes the LAG corresponding to the port-channel ID if set to absent	os9

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	os9, 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 os9_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 OS9 name.

When os9_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 os9_lag role.

Sample hosts file

leaf1 ansible_host= <ip_address> 

Sample host_vars/leaf1

hostname: leaf1
ansible_become: yes
ansible_become_method: xxxxx
ansible_become_pass: xxxxx
ansible_ssh_user: xxxxx
ansible_ssh_pass: xxxxx
ansible_network_os: dellemc.os9.os9
build_dir: ../temp/os9

os9_lag:
    Po 127:
      type: static
      min_links: 3
      lacp:
        long_timeout: true
        fast_switchover: true
      lacp_system_priority: 1
      lacp_ungroup_vlt: true
      lacp_ungroup:
        - port-channel:1
          state: present
      channel_members:
        - port: fortyGigE 1/4
          state: present
        - port: fortyGigE 1/5
          state: present
      state: present

Simple playbook to setup system — leaf.yaml

- hosts: leaf1
  roles:
     - dellemc.os9.os9_lag

Run

ansible-playbook -i hosts leaf.yaml

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