Path Computation API

Document Type Replaced Internet-Draft (individual)
Authors Italo Busi  , Sergio Belotti  , Victor Lopez  , Oscar de Dios  ,  , Yan Shi  , Ricard Vilata  , Karthik Sethuraman 
Last updated 2016-07-08
Replaced by draft-busibel-teas-yang-path-computation
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


There are scenarios, typically in a hierarchical SDN context, in which an orchestrator may not have detailed information to be able to perform an end-to-end path computation and would need to request lower layer/domain controllers to calculate some (partial) feasible paths. Multiple protocol solutions can be used for communication between different controller hierarchical levels. This document assumes that the controllers are communicating using YANG-based Application Programming Interface (APIs). This document describes some use cases for an Application Programming Interface for path computation. A related yang model will be proposed in a next version or in another document.


Italo Busi (
Sergio Belotti (
Victor Lopez (
Oscar de Dios ( (
Yan Shi (
Ricard Vilata (
Karthik Sethuraman (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)