%% You should probably cite rfc8770 instead of this I-D. @techreport{ietf-ospf-ospfv2-hbit-05, number = {draft-ietf-ospf-ospfv2-hbit-05}, 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-ospf-ospfv2-hbit/05/}, author = {Keyur Patel and Padma Pillay-Esnault and Manish Bhardwaj and Serpil Bayraktar}, title = {{H-bit Support for OSPFv2}}, pagetotal = 8, year = 2018, month = aug, day = 1, abstract = {OSPFv3 defines an option bit for router-LSAs known as the R-bit in RFC5340. If the R-bit is clear, an OSPFv3 router can participate in OSPF topology flooding, however it will not used as a transit router. In such cases, other routers in the OSPFv3 routing domain only install routes to allow local traffic delivery. This draft defines the H-bit functionality to prevent other OSPFv2 routers from using the router for transit traffic in OSPFv2 routing domains as described in RFC 2328.}, }