Sony Computer Entertainment Inc.

Sony Interactive Entertainment Inc.

Steven Thomas

Attila Vass

Yutaka Takeda

A peer node coupled to a plurality of other peer nodes in an overlay network may process a broadcast message from an upstream peer node containing a plurality of packets by identifying packet missing from the message, identifying an upstream node to which the peer node has an existing inbound connection and which has the missing packet, and obtaining the missing packet from the upstream node. A message from an upstream node may be processed by buffering a subset of the packets of the message in a buffer for a finite period of time before and after the peer node consumes the packets and by identifying one or more of the buffered packets to one or more finger nodes.

Application level broadcast in peer overlay network

A broadcast message may be initiated or received at a peer node. The node obtains an uplink bandwidth available for broadcasting the message over the network and a number of copies that can be broadcast based on the available bandwidth. The node determines a range of key values for finger nodes that should receive copies of the broadcast message from a finger table. The finger table entries include references to finger nodes and key values associated with the finger nodes. The node determines which other nodes should receive copies of the broadcast message from range of key values and the number of copies. The node also determines an End ID for each recipient node. A copy of the broadcast message and corresponding End ID is sent to a finger node if the finger node's key value is within a range of key values specified by the End ID.

Growing community of inventors

Santa Clara, CA, United States of America

Steven Thomas