Extensions to Path Computation Element Communication Protocol (PCEP) for Hierarchical Path Computation Elements (PCE)
Huawei Technologies
Huawei Technologies
CTTC
Old Dog Consulting
The hierachical Path Computation Element (PCE) architecture defined in [PCE-HIERARCHY-FWK] allows the optimum sequence of domains to be selected, and the optimum end-to-end path to be derived through the use of a hierarchical relationship between domains. This document defines the Path Computation Element Protocol (PCEP) extensions for the purpose of implementing hierarchical PCE procedures which are described in [PCE-HIERARCHY-FWK].