onap.nodes.CP

Nodes of this type represent a connection point of a resource. This can be an L2 network interface, a port, a VLAN subinterface, etc.

Definition

node_types:
  onap.nodes.CP:
    derived_from: onap.nodes.Resource
    description: a connection point
  requirements:
    - binding:
        description: binding with a VFC
        capability: onap.capabilities.Bindable
        occurrences: [1, 1] # exactly one occurrence
        relationship: onap.relationships.BindsTo
    - link:
        description: link to a network
        capability: onap.capabilities.Linkable
        occurrences: [1, 1]
            # Exactly one occurrence;
            # either spend it with an internal VL (and this is how this CP becomes internal)
            # or leave it unsatisfied (and thus make the CP external)
        relationship: onap.relationships.LinksTo
            # without a relationship, a TOSCA requirement cannot have properties :(
    - host:
        capability: onap.capabilities.NetworkingInterface
        description: hardware required to function
        relationship: onap.relationships.HostedOn
        occurrences: [0,1]  
  attributes:
    address_data:
      type: onap.datatypes.AddressData
      description: the address received after assignment

Example 1: Two resources communicating through an internal network

Example 2: A topology with an external CP

External CP

node_templates:
  # Other nodes, omitted
  #...

  ext_cp_123:
    type: onap.nodes.CP
    requirements:
      - bind: # bound to a component node in this topology
          node: vnfc_01
          capability: bind
      - link: 
          node_filter:
              capabilities: 
                - onap.capabilities.Linkable
                    properties:
                      protocols:
                        - contains_all: [IPv4, TCP] # WARNING: 'contains_all' is not a standard TOSCA constraint !
                      roles:
                        - contains_any: [peer]      # WARNING: 'contains_any' is not a standard TOSCA constraint !
                      bitrate:
                        - greater_or_equal: 1000