Patent ID: 8976671
Filing Date: 2015-03-10
Classification: H04L

Abstract:
1. An information processing apparatus comprising: a memory that stores a congestion window size before congestion is detected, the congestion window size limiting an amount of data to be transmitted; and a processor coupled to the memory, wherein the processor executes a process comprising: reducing a current congestion window size to a predetermined size, upon the congestion being detected; upon path switching occurring after the congestion is detected and upon receiving a first round-trip time of a path after the path switching from a relay device for relaying transmission data to a destination, first correcting the congestion window size before congestion detection which is stored in the memory, using a first calculating formula to calculate the congestion window size based on a difference in a round-trip time between the first round-trip time of the path after the path switching and a second round-trip time of a path before the path switching; upon path switching occurring after the congestion is detected and upon the information processing apparatus measuring the first round-trip time of the path after the path switching, second correcting the congestion window size before congestion detection which is stored in the memory, using a second calculating formula to calculate the congestion window size based on the measured first round-trip time; and changing the reduced congestion window size to the size corrected at the first correcting or the second correcting.