Skip to content

Latest commit

 

History

History
70 lines (53 loc) · 2.26 KB

README.md

File metadata and controls

70 lines (53 loc) · 2.26 KB
Raw

Role Name

This role generates Junos configurations for EBGP underlay connectivity.

The role will automatically:

  1. Discover the links connecting the devices in the underlay group,
  2. Generate the underlay IP address configurations,
  3. Assign a unique ASN to each device and generate the EBGP configurations to establish BGP peering over the physical interfaces and redistribute the loopback interface addresses.

Requirements and Role Dependencies

roles:

Role Variables

  • ebgp_underlay_config_dir (default "{{ inventory_dir }}/_ebgp_underlay_configs"): The path to the directory in which configuration files will be saved. If the folder specified does not exist, it will be automatically created.
  • underlay_group (default "ip_underlay"): A group name that should also be defined in the inventory file. Only devices that are members of this group will be discovered and configured.
  • asn_start (default "4200000100"): the first Autonomous System Number (ASN) that will be assigned to the first device. Further ASNs will be picked incrementally from this value. The default value represents a 32-bits ASN. However, the variable is just a string, therefore it can be also used to represent a 16-bit ASN e.g."65000"
  • enable_load_balancing (default yes): If yes, it will generate the configuration to enable load balancing on control and forwarding plane. This includes a load balancing policy applied to the PFE along with multi-path multiple AS option in the BGP configuration.
  • ebgp_config_group_name (default "ebgp-underlay"): the name that will be given to the BGP group in the configuration;

Example Playbook

# my_playbook.yml

- name: Generate IP and EBGP underlay configuration
  hosts: ip_underlay
  connection: local
  gather_facts: no
  tasks:
    - name: Generate IP and EBGP underlay configuration
      include_role:
        name: dana_junos_ebgp_underlay
        public: yes
        # Apply tags required to make role's tasks inherit the desired tags
        apply:
          tags:
            - always
      tags:
        - always

License

BSD

Author Information

Luigi Stammati