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The goal here is to enhance the CCVPN use-case to support Intent-based networking. Intent separates “what”(description of the desired outcome) from “how”(actual network configurations), and can be used to enable the full network automation. This requirement wants to make CCVPN offer an Intent NBI that can be used to enable the closed-loop automation of the transport network. Also, Cloud Leased Line (CLL) is another use-case which comes as an enhancement to CCVPN. In CLL, one VPN service connects an enterprise network to multiple clouds; i.e. multiple VPNs can co-exist (service-isolation, performance monitoring).

Use Case Key Information

BUSINESS DRIVER

Executive Summary - We would like to enhance the CCVPN use-case to support Intent-based networking. Intent separates “what”(description of the desired outcome) from “how”(actual network configurations), and can be used to enable the full network automation. We will make CCVPN offer an Intent NBI that can be used to enable the closed-loop automation of the transport network.

Business Impact - Driven by use-cases such as IoT and 5G, the complexity of today’s transport network grows abruptly. Intent-Based Networking (IBN) is an emerging technology that aims to effectively manage network complexity and also aims for closed-loop automation.

An End-to-End 5G Network Slice consists of RAN, Transport and Core network slice sub-nets. This requirement is devoted to the realization Transport Slice sub-nets. It implements TN NSSMF, of which the functionality includes the modeling, orchestration and assurance of a Transport Slice. While TN NSSMF is a self-contained entity and thus this requirement can be independent, ensuring the integration with the E2E Network Slicing is an important aspect of this requirement. Standards-based interfaces and architectural framework (e.g., ETSI ZSM, IETF) are used by this requirement.

Business Impact - This requirement is important because Transport Slicing is an essential feature of the overall E2E Network Slicing, whose value is stated in its requirement.

Business Markets - Transport Slicing is an essential feature of Network SlicingBusiness Markets - Intent Based Networking (IBN) is an essential feature of future networking. Any operators who would like to deploy ONAP-based network automation solution would most likely require ONAP to support IBNNetwork Slicing solution will require this feature. Equally important, this feature (ONAP TN NSSMF) is self-contained and deployable. Thus, an operator who wishes to deploy an ONAP-based TN NSSMF may also benefit from it.

Funding/Financial Impacts - Intent CCVPN provides service automation, assurance, and the optimal use of network resources. Thus, it helps reduce OPEX for a service provider.

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Story Tickets

USE CASE DIAGRAM

Documents

IETF/ACTN Models and Interfaces

IETF ACTN YANG Schema:

• ietf-eth-te-topology@2018-03-01.yang 
• ietf-eth-te-tunnel@2018-03-01.yang
• ietf-eth-tran-service@2018-03-01.yang
• ietf-eth-tran-types@2018-03-01.yang
• ietf-inet-types.yang
• ietf-network@2018-02-26.yang
• ietf-network-topology@2018-02-26.yang
• ietf-optical-slice@2020-08-21.yang
• ietf-otn-topology@2018-06-07.yang
• ietf-otn-tunnel@2018-06-07.yang
• ietf-otn-types@2018-06-07.yang
• ietf-routing-types@2017-12-04.yang
• ietf-te@2018-03-03.yang
• ietf-te-mpls-types@2018-02-15.yang
• ietf-te-topology@2018-02-21.yang
• ietf-te-types.yang
• ietf-trans-client-service@2018-02-09.yang
• ietf-yang-types@2013-07-15.yang

R7 Guilin Release Yang Schema Collection:

Pro tip: a Yang-Viewer is included, which aims to provide easy access to YANG files and promote the use of YANG language inside TN ecosystem.

Try putting jsyang.exe into the yang file folder, execute it and view yang schemas inside the browser.

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TESTING

Test Cases and Status

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