Subject: [nmrg] DTN open issue 2: How Orchestration is different from other components?

From: Qin Wu <[email-masked]>
Date: Thu, 22 Apr 2021 08:11:56 +0000

Hi, All:
In IETF110 NMRG session, the second issue we brought up for Digital Twin Networking Draft is How Orchestration is different from other components?
Basically orchestration component aims to control and manage the twin entity, then helps to provide an integrated service to various applications.
Two main orchestration features can be provided:
1.       Control the digital twin network environment and its components to derive the required/expected behavior
2.       Deal with the dynamic lifecycle management of these components by providing
*    Repeatability: Replicate network conditions on demand
*    Reproducibility: Replay successions of events, possibly under controlled variations

In digital twin network defined in draft-zhou-nmrg-digitaltwin-network-concepts, four functionality blocks are defined: Analyze, Emulate, Diagnose, Control.
Four technical elements are defined: Data, Models, Mapping and interface.
I feel orchestration functionality is more related to control functional block, therefore I am wondering whether we should move orchestration from core elements defined for digital twin network
And consolidated into "control" functional block.

A new version will be planned to address this issue.

-Qin (on behalf of authors)