Support for ipv6 address on l3_interfaces in network services

[LukasN-CW]

Hi,

Its my first time opening a discussion, if something is missing or so let me know.
We're using l3_interfaces from the network services part of the AVD and have a need to configure IPv6 on them.
Until AVD 5.7.3 we used host_vars for every device with a custom_structured_configuration_ethernet_interfaces to set the IPv6 addresses on those interfaces.
After upgrading to 6.3 I got an error indicating that I have duplicate data sources for one physical interface.

This is my initial code:

Network Services:

TENANT:
  name: TESTING
  vrfs:
    - name: default
      address_families: []
      l3_interfaces:
        - nodes:
            - DeviceA
            - DeviceA
          interfaces:
            - Ethernet1/1
            - Ethernet2/1
          ip_addresses:
            - 1.1.1.0/31
            - 1.1.1.2/31
          descriptions:
            - "DeviceX_Ethernet1"
            - "DeviceX_Ethernet2"
          <<: *common_structured

Host vars DeviceA:

custom_structured_configuration_ethernet_interfaces:
  - name: Ethernet1/1
    ipv6_address: 3fff::/127
  - name: Ethernet2/1/1
    ipv6_address: 3fff::2/127

My solution for Version 6.3:

TENANT:
  name: TESTING
  vrfs:
    - name: default
      address_families: []
      l3_interfaces:
        - nodes:
            - DeviceA
          interfaces:
            - Ethernet1/1
          ip_addresses:
            - 1.1.1.0/31
          descriptions:
            - "DeviceX_Ethernet1"
          structured_config:
            ipv6_addresses:
              - 3fff::/127
            <<: *common_structured
        - nodes:
            - DeviceA
          interfaces:
            - Ethernet2/1
          ip_addresses:
            - 1.1.1.2/31
          descriptions:
            - "DeviceX_Ethernet2"
          structured_config:
            ipv6_addresses:
              - 3fff::2/127
            <<: *common_structured

Are there any plans to add a way to configure IPv6 addresses without the structured configuration?
Is there any other solution as the one I chose?
I would like to have a way to configure the IPv6 addresses in the same way as I did with the v4 addresses in my 5.7.3 example. e.g.

TENANT:
  name: TESTING
  vrfs:
    - name: default
      address_families: []
      l3_interfaces:
        - nodes:
            - DeviceA
            - DeviceA
          interfaces:
            - Ethernet1/1
            - Ethernet2/1
          ip_addresses:
            - 1.1.1.0/31
            - 1.1.1.2/31
          ipv6_addresses:
            - 3fff::/127
            - 3fff::2/127
          descriptions:
            - "DeviceX_Ethernet1"
            - "DeviceX_Ethernet2"
          <<: *common_structured

BR,
Lukas

[gmuloc]

Hi Lukas,

I took the liberty to reformat your post but I don't think I have lost anything in there. Feel free to edit back the code blocks.

regarding the duplication, this is most certainnly due to https://avd.arista.com/6.3/docs/porting-guides/6.x.x.html#enhanced-conflict-detection-in-eos_designs though it should not have impacted you with custom_strutcured_config

regarding your ask to add IPv6 for network services, this was added last week: #6876 you should get it in AVD 6.4.0

[LukasN-CW]

Hi @gmuloc,

thank for editing :)
Overall i wanted to get rid of the host vars , so it was good that I got the error anyway.
I will checkout out the dev release 6.4., i've overlooked the PR.

Thanks.

[gmuloc]

hmm we have not released the collection for 6.4.0.dev1 only the pyavd package (we were testing some new publishing workflow) so you are better off running from devel branch I think but let us know