1. Network Service Model with TOSCA yaml
Mar 7, 2018
Feng yuanxing, ZTE
This is a NS model proposal with TOSCA yaml from ZTE based on IFA011&IFA014. And, this proposal is also submitted to modeling subcommittee in ONAP coummunity.

2. Overview: NSD

3. Overview: NSD
NSD
NsVL1
VNF1
VNF2
VNF3
NsVL2

4. tosca.nodes.nfv.NS tosca.nodes.nfv.NS: derived_from: tosca.nodes.Root
properties:
id:
type: string
required: true
name:
designer:
version:
invariant_id:
requirements:
- virtualLink:
capability: tosca.capabilities.nfv.VirtualLinkable
relationship: tosca.relationships.nfv.VirtualLinksTo

5. tosca.nodes.nfv.VNF tosca.nodes.nfv.VNF properties: id: type: string
required: true
version:
provider:
product_name:
software_version:
product_info_name:
product_info_description:
vnfm_info:
requirements:
- virtualLink:
capability: tosca.capabilities.nfv.VirtualLinkable
relationship: tosca.relationships.nfv.VirtualLinksTo

6. tosca.nodes.nfv.NsVirtualLink
derived_from: tosca.nodes.Root
properties:
id: #virtual_link_desc_id:
type: string
required: true
provider: #vitual_link_desc_provider:
required: false
connectivity_type:
type: tosca.datatypes.nfv.ConnectivityType
test_access:
type: list
entry_schema:
loopbacks at endpoints).
description:
capabilities:
virtual_linkable:
type: tosca.capabilities.nfv.VirtualLinkable

7. Datatype& Relationship & Capability
tosca.datatypes.nfv.ConnectivityType:
derived_from: tosca.datatypes.Root
properties:
layer_protocol:
type: string
required: true
constraints:
- valid_values: [ethernet, mpls, odu2, ipv4, ipv6, seudo_wire ]
flow_pattern:
required: false
- valid_values: [Line, Tree, Mesh]
tosca.relationships.nfv.VirtualLinksTo:
derived_from: tosca.relationships.DependsOn
valid_target_types: osca.capabilities.nfv.VirtualLinkable ]
tosca.capabilities.nfv.VirtualLinkable
derived_from: tosca.capabilities.network.Linkable

8. NSD Example tosca_definitions_version: tosca_simple_yaml_1_1 metadata:
...
imports:
- nodes:
file: nodes.yml
- datatypes:
file: data.yml
- capabilities:
file: capabilities.yml
- relationships:
file: relationships.yml
topology_template:
inputs:
# omitted here for brivity
substitution_mappings:
node_type: tosca.nodes.nfv.NS.example
requirements:
- virtualLink: [VNF1, virtualLink2]
node_templates:
NsVL1:
type: tosca.nodes.nfv.NsVirtualLink
properties:
NsVL2:
VNF1:
type: tosca.nodes.nfv.VNF
properties: ...
requirements:
- virtualLink1: NsVL2
- virtualLink2:
capability: tosca.capabilities.nfv.VirtualLinkable
VNF2:
type: onap.nodes.VNF
- virtualLink1: NsVL1
VNF3:

9. Thank you!
2018/9/17