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  1. RHEL
  2. RHEL-122042

Add kernel Geneve netdevice support to NetworkManager

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      Definition of Done:

      Please mark each item below with ( / ) if completed or ( x ) if incomplete:

      ( ) The acceptance criteria defined below are met.

       
      Given NetworkManager exposes a geneve connection type with fields base-iface, id (VNI), remote/remote6, mtu,
      When a connection is created (nmcli or D-Bus) and activated,
      Then a kernel Geneve netdev exists (ip link), is up, has the configured MTU and IP (if set), and ip -d link show reflects Geneve attributes with kernel defaults applied. Also, configuration is persisted in keyfile and restored on NM restart.

      –
      Given invalid inputs (id out of range, malformed remote/remote6, or missing base-iface),
      When attempting to activate the connection,
      Then activation fails with a clear error and no partial/ghost devices remain and when a valid connection is configured and the host reboots,
      Then the Geneve netdev is recreated and UP with the same settings before dependent services start.

      ( ) Integration test case are available upstream

      ( ) Code is reviewed and merged upstream

      ( ) Preliminary testing is done

      ( ) Upstream documentation is written in the upstream MR

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      Definition of Done: Please mark each item below with ( / ) if completed or ( x ) if incomplete: ( ) The acceptance criteria defined below are met.   Given NetworkManager exposes a geneve connection type with fields base-iface, id (VNI), remote/remote6, mtu, When a connection is created (nmcli or D-Bus) and activated, Then a kernel Geneve netdev exists (ip link), is up, has the configured MTU and IP (if set), and ip -d link show reflects Geneve attributes with kernel defaults applied. Also, configuration is persisted in keyfile and restored on NM restart. – Given invalid inputs (id out of range, malformed remote/remote6, or missing base-iface), When attempting to activate the connection, Then activation fails with a clear error and no partial/ghost devices remain and when a valid connection is configured and the host reboots, Then the Geneve netdev is recreated and UP with the same settings before dependent services start. ( ) Integration test case are available upstream ( ) Code is reviewed and merged upstream ( ) Preliminary testing is done ( ) Upstream documentation is written in the upstream MR
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      Goal

      As a system administrator, I want to create, modify, and persist Linux kernel Geneve tunnels directly via NetworkManager (nmcli/D‑Bus/keyfile), so that I can manage overlay connectivity declaratively and consistently alongside other interfaces, and enable nmstate to orchestrate Geneve at scale.

      Acceptance criteria

      A list of verification conditions, successful functional tests, or expected outcomes in order to declare this story/task successfully completed.

      • Verify NetworkManager exposes a `geneve` connection type with fields: `base-iface`, `id` (VNI), `remote`/`remote6`, `mtu`; attributes are persisted and restored on restart.
      • Verify kernel Geneve attributes per ip‑link “geneve” are supported: https://man7.org/linux/man-pages/man8/ip-link.8.html
      • Verify create/activate: `ip -d link show` reflects configured/default Geneve attributes; device is UP and IP/MTU are applied when set.
      • Verify validation: invalid `id` range, malformed `remote`/`remote6`, or missing `base-iface` fails activation with clear error and no orphan devices.
      • Verify persistence across reboot: valid configuration recreates the Geneve netdev and brings it up before dependent services start.

              nm-team Network Management Team
              rh-ee-sfaye Stanislas Faye
              Network Management Team Network Management Team
              Vladimir Benes Vladimir Benes
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                Created:
                Updated: