{"draft":"draft-ietf-pce-hierarchy-extensions-11","doc_id":"RFC8685","title":"Path Computation Element Communication Protocol (PCEP) Extensions for the Hierarchical Path Computation Element (H-PCE) Architecture","authors":["F. Zhang","Q. Zhao","O. Gonzalez de Dios","R. Casellas","D. King"],"format":["HTML","TEXT","PDF","XML"],"page_count":"27","pub_status":"PROPOSED STANDARD","status":"PROPOSED STANDARD","source":"Path Computation Element","abstract":"The Hierarchical Path Computation Element (H-PCE) architecture is\r\ndefined in RFC 6805.  It provides a mechanism to derive an optimum\r\nend-to-end path in a multi-domain environment by using a hierarchical\r\nrelationship between domains to select the optimum sequence of\r\ndomains and optimum paths across those domains.\r\n\r\nThis document defines extensions to the Path Computation Element\r\nCommunication Protocol (PCEP) to support H-PCE procedures.","pub_date":"December 2019","keywords":["Traffic Engineering","Inter-domain","Multi-domain"],"obsoletes":[],"obsoleted_by":[],"updates":[],"updated_by":["RFC9756"],"see_also":[],"doi":"10.17487\/RFC8685","errata_url":null}