.. code-block:: json

    { "isis": { "external": { "connections": [] } } }


.. list-table::
   :widths: 25 50 25
   :header-rows: 1

   * - Attribute
     - Description
     - Default
   * - `system-id`
     - ISIS system identifier
     - 
   * - `l1-metric`
     - ISIS level 1 interface metric
     - 10
   * - `l2-metric`
     - ISIS level 2 interface metric
     - 10