公开(公告)号：US11632326B1

公开(公告)日：2023-04-18

申请号：US17348065

申请日：2021-06-15

Applicant: Amazon Technologies, Inc.

Inventor： Ryan Hegar ,  Evan Statton ,  Norman Bright ,  Steve Andrew Orchard

IPC: H04L45/24 ,  H04L45/12 ,  H04L69/16 ,  H04L43/0817 ,  H04L45/42

Abstract: Systems, devices, and methods are provided for transmitting and retransmitting data. A first message transmitted by a sender computing entity to a receiver computing entity over a first port may exercise a first network path whereas a second message transmitted over a second port may exercise a second network path. A system (e.g., sender computing entity) may determine network reliability metrics for a plurality of network paths. If a system detects data loss (e.g., packet loss) on a first port, a second port may be selected based on network reliability metrics for retransmission of the lost data. A port may for example, be selected for retransmission based on the following criteria: (1) the port has the longest consecutive duration without packet loss and (2) the port has received an acknowledgement for a packet that was sent more recently than the initial transmission of the lost packet.