Patent ID: 6700876
Filing Date: 2004-03-02
Classification: H04L

Abstract:
A method for monitoring congestion in a network, said method comprising:prior to monitoring congestion in a network, predetermining at least one round trip time representative of no network congestion or a known degree of network congestion, said monitoring comprising: sending a packet into said network, and recording a first time stamp based thereon; receiving an acknowledgment back across said network responsive to said packet, and recording a second time stamp with receipt of said acknowledgment; determining a round trip time of said packet and acknowledgment across said network using said first time stamp and said second time stamp, wherein said round trip time is indicative of an amount of congestion in said network; and estimating said amount of congestion in said network using said determined round trip time, wherein said estimating comprises comparing said determined round trip time with the predetermined round trip time representative of no network congestion or a known degree of network congestion.