公开(公告)号：US11575609B2

公开(公告)日：2023-02-07

申请号：US16517358

申请日：2019-07-19

Applicant: Intel Corporation

Inventor： Arvind Srinivasan ,  Ramakrishna Huggahalli ,  Parthasarathy Sarangam ,  Sunil Ahluwalia ,  Mrittika Ganguli ,  Malek Musleh

IPC: H04L47/2441 ,  H04L47/122 ,  H04L47/11

Abstract: A switch or network interface can detect congestion caused by a flow of packets. The switch or network interface can generate a congestion hint packet and send the congestion hint packet directly to a source transmitter of the flow of packets that caused the congestion. The congestion hint packet can include information that the source transmitter can use to determine a remedial action to attempt to alleviate or stop congestion at the switch or network interface. For example, the transmitter can reduce a transmit rate of the flow of packets and/or select another route for the flow of packets. Some or all switches or network interfaces between the source transmitter and a destination endpoint can employ flow differentiation whereby a queue is selected to accommodate for a flow's sensitivity to latency.