1. VNFD and NSD modeling: Rel2 Thinh Nguyenphu, Nokia thinh
VNFD and NSD modeling: Rel2 Thinh Nguyenphu, Nokia
September 27, 2017

2. NFV SOL001: Status
SOL WG has taken a more proactive and collaborative approach by developing SOL001 GS specification.
SOL001 will endorse a specific version (e.g. CSD04) of the OASIS TOSCA NFV document. Plus, additional technical contents based on Simple YAML Profile v1.2, IFA011 and IFA014.
SOL001 latest draft : NFV-SOL001v010.zip
Estimate timeline: 90% VNFD content by end of 2017, 10% is mainly all of editor notes to be resolve.
WG approved draft (VNFD) should be ready by end of January 2018.
NSD within 4 months or less, or parallel work to meet milestone date.

3. SOL001: Contents Node Type: tosca.nodes.nfv.VNF as Properties
Group Type: tosca.groups.nfv.ElementGroup
Node Type: tosca.nodes.nfv.VNF
as Properties
Node Type: tosca.nodes.nfv.VDU.Compute
Capabilities Type: tosca.capabilities.nfv.VirtualCompute
Node Type: tosca.nodes.nfv.VDU.VirtualStorage
tosca.nodes.nfv.VnfVirltualLinkDesc
tosca.nodes.nfv.ExtCpd
TBD
Capabilitities Type: tosca.capabilities.nfv.VnfDeploymentFlavour
Data Type: tosca.datatypes.nfv.VnfConfigurableProperties
tosca.datatypes.nfv.VnfInfoModifiableAttributes
Interface Type: tosca.interfaces.nfv.vnf.lifecycle.Basic
tosca.interfaces.nfv.vnf.lifecycle.Healable
tosca.interfaces.nfv.vnf.lifecycle.Scalable
Capabilitities Type: tosca.capabilities.nfv.VnfIndicator

4. SOL001 ETSI NFV Element [IFA011] SOL001 Derived from VNF
tosca.nodes.nfv.VNF
tosca.nodes.Root
VDU
tosca.nodes.nfv.VDU.Compute
tosca.nodes.compute
Cpd (Connection Point)
tosca.nodes.nfv.Cpd
VduCpd (internal connection point)
tosca.nodes.nfv.VduCpd
VnfVirtualLinkDesc (Virtual Link)
tosca.nodes.nfv.VnfVirtualLinkDesc
External connection point
tosca.nodes.nfv.VnfExtCpd
Virtual Storage
Virtual Compute
tosca.capabilities.nfv.VirtualCompute
tosca.capabilities.Root
Software Image
tosca.artifacts.nfv.SwImage
tosca.artifacts.Deployment.Image
Deployment Flavour
tosca.capabilities.nfv.DeploymentFlavour
Scaling Aspect
tosca.datatypes.nfv.ScalingAspect
tosca.datatypes.Root
Element Group
tosca.groups.nfv.ElementGroup
tosca.groups.Root
Instantiation Level
tosca.datatypes.nfv.InstantiationLevel

5. SOL001: Ref: https://docbox. etsi
SOL001: Ref: tosca.nodes.nfv.VNF:
tosca.nodes.nfv.VNF:
derived_from: tosca.nodes.Root
properties:
descriptor_id: # instead of vnfd_id
type: string # GUID
required: true
descriptor_version: # instead of vnfd_version
type: string
provider: # instead of vnf_provider
product_name: # instead of vnf_product_name
software_version: # instead of vnf_software_version
product_info_name: # instead of vnf_product_info_name
required: false
product_info_description: # instead of vnf_product_info_description
vnfm_info:
type: list
entry_schema:
localization_languages:
default_localization_language:
capabilities:
vnf:
type: tosca.capabilities.nfv.VNF
deployment_flavour:
type: tosca.capabilities.nfv.VnfDeploymentFlavour
#monitoring_parameter:
# modeled as ad hoc capabilities in VNF node template
requirements:
- virtual_link:
capability: tosca.capabilities.nfv.VirtualLinkable
relationship: tosca.relationships.nfv.VirtualLinksTo
node: tosca.nodes.nfv.VL
occurrences: [ 0, UNBOUNDED ]

6. Avoid Spec collision or namespaces
SOL001 GS must follow the rules from TOSCA Simple YAML, section 3.1;
Nokia Proposal to ETSI NFV SOL WG.
Under discussion. No decision yet
Namespace Alias
Namespace URI
Specification Description
tosca_simple_yaml_etsinfv
TBD
The SOL001 (VNFD and NSD) based on TOSCA Simple Profile v1.2 (YAML) target namespace and namespace alias.
Prefer, not to create a new prefix name.
Further discussion with TOSCA TC is needed
Namespace Prefix
Specification Description
tosca
The reserved TOSCA Simple Profile Specification prefix that can be associated with the default TOSCA Namespace URI
TOSCA Namespacing in TOSCA Service Templates
TOSCA Service Templates MUST always have, as the first line of YAML, the keyword “tosca_definitions_version”
For SOL001: tosca_definitions_version: tosca_simple_yaml_etsinfv_1_0

7. Conclusion
SOL001 is VNFD and NSD data models (Stage3): NFV descriptors based on TOSCA Specification.
Any maintenance changes to IFA011 or IFA014: SOL001 shall be updated in the same maintenance release.
SOL006 is VNFD and NSD data models: NFV descriptors based on YANG Specification.
Based on IFA011, IFA014 and SOL001.
Goal: all of SOL001 TOSCA types will be mapped to YANG model
Recommendation #1:
SOL001 should be part of ONAP Rel2: VNF and service descriptors modeling
Recommendation #2:
Namespaces alias and prefix: Must follow TOSCA rules per section 3, & avoid collisions.