1. Nov, 2015 Howard Huang, Huawei Julien Zhang, ZTE
Keep Calm and Use Parser
Nov, 2015
Howard Huang, Huawei
Julien Zhang, ZTE

2. How would OPNFV attract more open source software developers ?

3. Apparently Not In This Way 。。。
I wrote the script based on the instructions in ETSI NFV documents, but I can’t run it on OPNFV …
Apparently Not In This Way
。。。
September 17, 2018
OPNFV Introduction

4. KEEP
CALM
And use
Parser
Page 4

5. Outline Parser Project Overview General Use Case Analysis
Heat-Translator Introduction
YANG-TO-TOSCA
OPNFV Use Case Example

6. Parser Project Overview
Parser is an integration project which aims to provide a translation tooling for OPNFV platform. (we are a small team spread over 4 companies)
The bulk of Parser work would be contributed to Heat-Translator project which serves as a upstream project for Parser. However Parser will also develop its own code, including YANG->TOSCA translation work from HP team and some other work that would not be contributed to upstream but identified by the use cases.
Current work is driven by use case analysis, which is provided by ZTE Team. Such analysis generates what feature Parser need to enhance for the upstream project.
Parser would be part of the OPNFV B release, and will make it in time.

7. Parser Project Overview – Fun Facts
September 17, 2018
OPNFV Introduction

8. Parser Project Overview – Architecture
OpenStack Upstream
Heat-Translator
TOSCA->HOT
Parser Repo
Use Case
YANG->TOSCA
OpenStack Upstream
Murano,…
Document
OPNFV Doc

9. General Use Case Analysis for a vRNC
CM: Control Module,with HA of resource pool and active vdu & standby vdu per resource.
DM: Data Module,with HA of resource pool and a vdu per resource.
MM: Maintain Module, with HA of standby vdu and active vdu.
LB: LineCard Module,with HA of resource pool and vdu per resource.

10. The dependency and specification

11. HOT - Heat Orchestration Template
Heat Translator
TOSCA
Template
HOT - Heat Orchestration Template
TOSCA Types
TOSCA Nodes
Map
Generate
Validation
Tests
Validation
Tests
tosca-parser
heat-translator
TOSCA-to-Heat-Translator is part of OpenStack Heat (from Kilo)
The tosca-parser is an OpenStack project and licensed under Apache 2. It is developed to parse TOSCA Simple Profile in YAML. It reads the TOSCA templates and creates an in-memory graph of TOSCA nodes and their relationship.
Heat-Translator is an Openstack project and licensed under Apache 2. It is a command line tool which takes non-Heat templates as an input and produces a Heat Orchestration Template (HOT) which can be deployed by Heat. Currently it supports TOSCA to HOT translation.
TOSCA-parser & Heat-Translator are available as independent Python library. ;
Heat-Translator available to use in python-openstackclient (OSC) via plugin
Latest TOSCA features integrated: Networking, Block & Object Storage...

12. YANG-TO-TOSCA
Provide a mechanism for a VNF provider to describe (VNF descriptor) the deployment requirements (such as basic VM requirements – vCPU, memory, storage, as well as advanced HW enhancement requirements such as Huge Pages support, SR-IOV, NUMA, DPDK support etc.) of a VNF
Python based script to convert VNF descriptor from YAML/XML based on YANG to TOSCA
VNFD based on the YANG schema defined in ETSI specification
Enhancements planned to YANG definition for additional NFV requirements
DPDK, SRIOV, HUGE Page support, CPU Pinning etc.

13. YANG-TO-TOSCA (details)
The conversion from YANG to TOSCA is done with the help of a python script which takes the YANG schema based VNFD as an input parameter and produces a TOSCA YAML file as output. 
This is being implemented as a Python script which makes use of a “PYANG” library to convert the YANG YAML file to an in-memory XML object which is then fed as an input to a XSLT transformer to transform the XML file to TOSCA.

14. OPNFV Use Case – DPACC MAN

15. OPNFV Use Case – DPACC MAN
VNF
Virtio
HW Acc Devices
SAL
SW Acc Device
SR-IOV Acc Driver
NFVI
Physical Device Driver
SR-IOV
APP
Crypto Interface
DPI Interface
Codec Interface
SAL (VirtIO Backend Driver)
VirtIO Front Driver
IPSec/GB/TLS/SRTP
VNF1
Media
Intel CCK
FPGA
GPGPU
DPACC-MAN Agent
Management
MANO
NFVO
VNFM
VIM/OpenStack
Nova
Neutron
DPACC-MAN
1) VI-Ha: Discovery of accelerator resource (Intel CCK, FPGA, GPU) in the Host.
2) Nf-Vi: Allocation and release of acceleration resources.
3)Or-Vi/Vi-Vnfm: External interface supporting VNFD.
"ACC":{ "acc_type":"IPSEC_3DES", 
  "acc_capability":  {"num":"800Mbps"} }
Or-Vi
Vi-Vnfm
Nf-Vi
VI-Ha

16. OPNFV Use Case – DPACC MAN
OpenStack
Nova
Neutron
Rock
OpenStack Agent
Neutron Agent
Rock Agent
MANO
Host OS
ACC
1、System booting
2、Load driver
3、Scan PCI for accelerator VF info
4、accelerator info
5、report accelerator info
6、create VM
8、Rock scheduling
Nova Agent
7、Create VM
9、Apply accelerator
10、config accelerator
11、Config accelerator

17. Shout out thank you to all the team members
Julien (ZTE)
Shitao (Huawei)
Shiva (HP)
Srinivas (TCS)
Xiaodong (ZTE)
Victor (Huawei)
Vinayak (HP)

18. Thank you
Page 18