https://app.knowbase.one/vault/rfc/docid/1911
RFC8685: Path Computation Element Communication Protocol (PCEP) Extensions for the Hierarchical Path Computation Element (H-PCE) Architecture
Internet Engineering Task Force (IETF) F. Zhang Request for Comments: 8685 Q. Zhao Category: Standards Track Huawei ISSN: 2070-1721 O. Gonzalez de Dios ...