%% You should probably cite rfc9504 instead of this I-D. @techreport{ietf-pce-pcep-stateful-pce-gmpls-11, number = {draft-ietf-pce-pcep-stateful-pce-gmpls-11}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ietf-pce-pcep-stateful-pce-gmpls/11/}, author = {Young Lee and Haomian Zheng and Oscar Gonzalez de Dios and Victor Lopez and Zafar Ali}, title = {{Path Computation Element (PCE) Protocol Extensions for Stateful PCE Usage in GMPLS-controlled Networks}}, pagetotal = 20, year = 2019, month = mar, day = 25, abstract = {The Path Computation Element (PCE) facilitates Traffic Engineering (TE) based path calculation in large, multi-domain, multi-region, or multi-layer networks. The PCE communication Protocol (PCEP) has been extended to support stateful PCE functions where the PCE retains information about the paths already present in the network, but those extensions are technology-agnostic. This memo provides extensions required for PCEP so as to enable the usage of a stateful PCE capability in GMPLS-controlled networks.}, }