Constraint information on the LTP

[italobusi]

Need to describe that the information in the LTP cannot be present in the data instance when the LTP is terminating a Link: need to check if this condition can be enforced with YANG syntax (e.g., with a when statement)

[danielkinguk]

Where to document the rule/logic for LTP. This could be in the YANG Guidelines, T-NBI 2.0 discussion, TE Tutorial in TEAS, or directly in the YANG model (statement or description).

[italobusi]

Aihua/Italo

Adding a when statement in YANG would require an NBC change to RFC8795 since the interface-switching-capability list is already defined both for the link and for the LTP

The YANG Guidelines for multi-technology single instance model should mention the rule/logic for LTP either explicitly or by reference to another guideline document

The TE Tutorial in TEAS has not been updated for more than 3 years

Probably the best option is to provide the rule/logic for LTP in the T-NBI 2.0 and reference it from the YANG guidelines