Patent ID: 7047312
Filing Date: 2006-05-16
Classification: H04L

Abstract:
1. A method for controlling the transmission of data packets through a network by controlling a Transmission Control Protocol (TCP) rate in a network device having a shared buffer with shared buffer space, the method comprising: organizing a forward data buffer into one or more queues that store at least one forward data packet; calculating the network device's advertised window size by: (1) initializing a timer to a predetermined time interval Δt, and an iteration counter to a predetermined initial value n; (2) sampling a current queue size q (3) calculating a current error signal e (4) calculating the network device's advertised window size W (5) resetting the timer, upon expiration of the predetermined interval Δt; and (6) iterating the iteration counter, upon expiration of the predetermined time interval Δt; providing the network device's advertised window size to a TCP source; and calculating a dynamic buffer threshold based, at least in part, upon the sum of the queue sizes and the shared buffer space.