%% You should probably cite draft-ietf-sfc-multi-layer-oam instead of this I-D. @techreport{ao-sfc-oam-return-path-specified-09, number = {draft-ao-sfc-oam-return-path-specified-09}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ao-sfc-oam-return-path-specified/09/}, author = {Greg Mirsky and Ting Ao and Zhonghua Chen and Gyan Mishra}, title = {{Controlled Return Path for Service Function Chain (SFC) OAM}}, pagetotal = 9, year = 2021, month = mar, day = 30, abstract = {This document defines an extension to the Service Function Chain (SFC) Operation, Administration and Maintenance (OAM) that enables control of the Echo Reply return path directing it over a Reverse Service Function Path. Enforcing the specific return path can be used to verify the bidirectional connectivity of SFC and increase the robustness of SFC OAM.}, }