Amazon.com, Inc.
Distributed connection state tracking for large-volume network flows

Abstract:

A respective plurality of state tracking nodes is selected at a flow management service for each direction of a bi-directional network flow's traffic prior to routing a first packet of the flow, and state tracking entries for the flow are stored at the nodes. The state tracking entries include a transformation descriptor for the packets of the flow. When a packet of the flow is received, at least one transformed packet corresponding to the received packet is generated and transmitted to a destination indicated by the transformation descriptor.