https://app.kbone.net/vault/rfc/docid/448
RFC9177: Constrained Application Protocol (CoAP) Block-Wise Transfer Options Supporting Robust Transmission
Internet Engineering Task Force (IETF) M. Boucadair Request for Comments: 9177 Orange Category: Standards Track J. Shallow ISSN: 2070-1721 March 2022 ...
https://app.kbone.net/vault/rfc/docid/8644
RFC7959: Block-Wise Transfers in the Constrained Application Protocol (CoAP)
Internet Engineering Task Force (IETF) C. Bormann Request for Comments: 7959 Universitaet Bremen TZI Updates: 7252 Z. Shelby, Ed. Category: Standards Track ARM IS...