@techreport{xiao-rtgwg-rocev2-fast-cnp-05, number = {draft-xiao-rtgwg-rocev2-fast-cnp-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-xiao-rtgwg-rocev2-fast-cnp/05/}, author = {Xiao Min and lihesong and Kan Zhang and Weiqiang Cheng and Jin Yang and hexiaoming}, title = {{Fast Congestion Notification Packet (CNP) in RoCEv2 Networks}}, pagetotal = 13, year = 2026, month = may, day = 25, abstract = {This document describes a Remote Direct Memory Access (RDMA) over Converged Ethernet version 2 (RoCEv2) congestion control mechanism, which is inspired by Really Explicit Congestion Notification (RECN) described in RFC 7514, also known as Fast Congestion Notification Packet (Fast CNP). By extending the RoCEv2 CNP, Fast CNP can be sent by the switch directly to the sender, advising the sender to reduce the transmission rate at which it sends the flow of RoCEv2 data traffic.}, }