@techreport{lopez-pce-hpce-ted-02, number = {draft-lopez-pce-hpce-ted-02}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-lopez-pce-hpce-ted/02/}, author = {Victor Lopez and Oscar Gonzalez de Dios and Daniel King and Stefano Previdi and Jeff Tantsura}, title = {{Traffic Engineering Database dissemination for Hierarchical PCE scenarios}}, pagetotal = 12, year = 2014, month = jul, day = 3, abstract = {The PCE architecture is well-defined and may be used to compute the optimal path for LSPS across domains in MPLS-TE and GMPLS networks. The Hierarchical Path Computation Element (H-PCE) {[}RFC6805{]} was developed to provide an optimal path when the sequence of domains is not known in advance. The procedure and mechanism for populating the Traffic Engineering Database (TED) with domain topology and link information used in H-PCE-based path computations is open to interpretation. This informational document describes how topology dissemination mechanisms may be used to provide TE information between Parent and Child PCEs (within the H-PCE context). In particular, it describes how BGP-LS might be used to provide inter- domain connectivity. This document is not intended to define new extensions, it demonstrates how existing procedures and mechanisms may be used.}, }