%% You should probably cite rfc9355 instead of this I-D. @techreport{ietf-lsr-ospf-bfd-strict-mode-10, number = {draft-ietf-lsr-ospf-bfd-strict-mode-10}, 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-lsr-ospf-bfd-strict-mode/10/}, author = {Ketan Talaulikar and Peter Psenak and Albert Fu and Rajesh Shetty}, title = {{OSPF Bidirectional Forwarding Detection (BFD) Strict-Mode}}, pagetotal = 10, year = 2022, month = oct, day = 6, abstract = {This document specifies the extensions to OSPF that enable an OSPF router to signal the requirement for a Bidirectional Forwarding Detection (BFD) session prior to adjacency formation. Link-Local Signaling (LLS) is used to advertise the requirement for strict-mode BFD session establishment for an OSPF adjacency. If both OSPF neighbors advertise BFD strict-mode, adjacency formation will be blocked until a BFD session has been successfully established. This document updates RFC 2328 by augmenting the OSPF neighbor state machine with a check for BFD session up before progression from Init to 2-Way state when operating in OSPF BFD strict-mode.}, }