Patent ID: 9450867
Filing Date: 2016-09-20
CPC Classification: H04L

Claim Text:
1. A relay device arranged on a path of a Transmission Control Protocol (TCP) packet transmitted and received between a transmission-side end device and a reception-side end device, the relay device comprising: a memory configured to store packet information obtained by snooping on a first TCP packet that is addressed to the reception-side end device and received from the transmission-side end device and on a second TCP packet that is addressed to the transmission-side end device and received from another relay device that is arranged between the relay device and the reception-side end device on the path; and a processor configured to perform, based on the packet information, first communication control between the relay device and the another relay device, the first communication control being independent of second communication control that is performed between the transmission-side end device and the reception-side end device; wherein the processor determines, based on the packet information obtained by snooping the first and second TCP packets, at least one of a transmission rate and congestion detection.