Questions on the list of tiebreakers defined in RFC8776

[italobusi]

The model provides a list of tiebreaker criteria "to apply on an equally favored set of paths, in order to pick the best".

Few questions for clarification:

1. The tiebreaker-type is an identityref with base path-metric-type and not with base path-tiebreaker-type

2. Is the list ordered or not? If ordered, how? If not, how different tiebreakers can be applied?

Note that RFC8776 defines the path-tiebreaker-type base identity and its derived identities but no data node using them.

[italobusi]

2024-02-09 TE Call

Split into two issues:

• Allow both using both tiebreaker types (e.g., min-fill, max-fill) and path metrics as tiebreakers #265
• Add ordered-by-user statement to the tiebreakers list #266

[italobusi]

2024-02-16 TE call

     |     |     +--rw optimizations
     |     |     |  +--rw (algorithm)?
     |     |     |     +--:(metric) {path-optimization-metric}?
     |     |     |     |  +--rw optimization-metric* [metric-type]
     |     |     |     |  |  +--rw metric-type                       identityref
     |     |     |     |  |  +--rw weight?                           uint8
     |     |     |     +--:(objective-function) {path-optimization-objective-function}?
     |     |     |        +--rw objective-function
     |     |     |           +--rw objective-function-type?   identityref
     |     |     +--rw tiebreaker    path-tiebreaker-type // default random