TAPI Plan

Feature priority for TAPI 2.6.0 (July to September 2024)

• Note that some planned features may need only RIA update
• (H) High priority
• (M) Mediun priority
• (L) Low priority

Topology Management

1. (H) UNI/ENNI: deprecation of DSR and OTN as layer names for UNI/ENNI SIP/NEP (Andrea)
   • For both fixed and configurable UNI/ENNI use instead either PHOTONIC_MEDIA or (new) ELECTRICAL_MEDIA

Connectivity Management

1. Staged provisioning of Connectivity Service (lifecycle intent and state) (Andrea)
   • (H) Fixing consistency between YANG and RIA
   • (L) Including schedule / temporal management
2. Development of Path Computation UCs (Nigel) (H) - Connectivity Service constraints on PathSet (e.g. inclusion) (M) - Connectivity Service related to computation service, including preparation for specific work in 2.7+
3. (L) Review of SIP/NEP capability model
   • E.g. a given SIP instance may potentially support services at more layers

Photonic Connectivity Management

1. (H) Complex digital payload of photonic media (Andrea)
   • Describe how a DSR (perhaps directly supporting IP) can be carried directly by photonics
   • OTSiG on multiple line ports
2. (H) Remote Pluggable (e.g. ZR/ZR+) Use Cases (Nigel)
   • Consider OIF/IETF for the pluggable model
   • IETF: lifecycle of the pluggable
3. (M) 3R Scenarios
   • Further development of Connectivity UCs including 3R
   • In relationship with Asymmetric Service model
   • In relationship to Resiliency
   • See IETF related works (https://github.com/ietf-ccamp-wg/draft-ietf-ccamp-optical-impairment-topology-yang)
4. (H) Linkage between TAPI model and IETF model to allow navigation from photonic/OTN to IP layers (Nigel)
   • Initially e.g. minimal navigation capability (RFC 8345, RFC 8795)

OAM Management

1. (L) Problem / Incident reporting (elementary fault analysis / synthesis) (Nigel)
   • Some work ongoing @ IETF
2. PM streaming enhancements (Nigel)
   • (H) Validate that the PM streaming model aligns with the most recent moves in OAM
   • (H) Additional properties in enums
   • (H) Spotlight/snapshot stream to "get current data" e.g. on periodical time on selected monitors
   • (H) Fix to some strings in the protobuf data (not in correct case) - note that this will not impact compatibility.
   • (M) Zero and same value suppression

Photonic OAM Management

1. (H) Further development of Optical Impairments UCs (Esther)

   • Work ongoing @ IETF
     • so far coherent is predominant

2. (M) Further developments of Photonic OAM model (Andrea)

   • Power along a Connection (Nigel)

Equipment Management

1. (H) Node to Device relationship (Nigel)

RESTCONF

1. (H) Improve documentation on POST/DELETE/etc. (Nigel)
   • Following the removal of all RPCs
2. (L) Response codes for use cases

General applications

1. All properties are conditional (Nigel)
2. Security: identity, authentication, authorization, confidentiality, etc. (STRIDE) (Jonathan)
   • TLS, SSH
   • NACM
3. RIA structure needs improvements
   • Consider strategies to e.g. break the monolitic document
   • Numbering of Use Cases - relationship with Use Cases initially developed not by TAPI team
     • should be candidate for std adoption, if not then using a numbering not overlapping with TR-547

Note that:

• All features and enhancements should start with business scenarios and/or use cases along with requirements.

  • These may initially be lightweight and be developed as the solution is developed

• For a feature/enhancement to be completed, the necessary UML, Yang, RIA etc. changes/additions must be provided by the team.

• Where a feature is being delivered over multiple releases, it is an option to deliver draft Use Cases and model in the first one or two release(s).

• Effort should be made to achieve backward compatibility with previous releases.