Patent Number: 6,434,118

Title: Method for determining round trip time utilizing ATM traffic managementmechanism

Abstract: A method of measuring the Round Trip Time (RTT) if a Virtual Circuit (VC)utilizing the Traffic Management mechanism of ATM. The RTT is measured inreal time individually for each new opened VC and/or for existing VCroutes in the network. In addition, the RTT measurement method of thepresent invention can be used to determine the CRM parameter for a VC onan end to end basis, e.g., user to user or LEC to LEC, so as to achievebetter performance of the network. The invention comprises a firstembodiment that utilizes the SN field of a RM cell in measuring the RTTand a second embodiment that does not utilize the SN field in measuringthe RTT. In addition, an application of the method is presented indetermining the CRM parameter within the TM descriptor.

Inventors: Kirschenbaum; Ilan (Petach-Tikva, IL)


International Classification: H04L 12/56 (20060101); H04L 12/24 (20060101); H04L 012/26 (); H04L 012/56 ()

Expiration Date: 08/13/2014