tosca_definitions_version: tosca_simple_yaml_1_0_0
node_types:
  tosca.nodes.nfv.NsVirtualLink:
    derived_from: tosca.nodes.Root
    description: node definition of Virtual Links
    properties: 
      vl_profile:
        type: tosca.datatypes.nfv.NsVlProfile # only covers min/max bitrate requirements
        description: Specifies instantiation parameters for a virtual link of a particular NS deployment flavour.
        required: true
      connectivity_type:
        type: tosca.datatypes.nfv.ConnectivityType
        required: true
      test_access:
        type: list
        description: Test access facilities available on the VL 
        required: false
        entry_schema:
          type: string
          constraints:
            - valid_values: [ passive_monitoring, active_loopback ]
      description:
        type: string
        required: false
        description: Human readable information on the purpose of the virtual link (e.g. VL for control plane traffic).
    capabilities:
      virtual_linkable:
        type: tosca.capabilities.nfv.VirtualLinkable