Method and system for monitoring broadband quality of services

Details Method and system for monitoring broadband quality of services Method and system for monitoring broadband quality of services

H - Electricity

04

L

H04L 12/26 (2006.01) H04L 1/00 (2006.01)

Patent

CA 2334247

A method and system for monitoring a first virtual circuit in an asynchronous transmission mode (ATM) network comprises the steps of establishing in the network a second virtual circuit with the same path and QoS parameters as the first virtual circuit, and monitoring the first virtual circuit by determining the QoS parameters of the second virtual circuit. Specifically, a monitoring station (100A, 100B) determines the QoS parameters of the second virtual circuit by inserting monitoring information in cells transmitted and received on the second virtual circuit. The monitoring station (100A, 100B) inserts the monitoring information immediately before transmitting each cell and immediately after receiving each cell. Furthermore, the monitoring station (100A, 100B) compares the QoS parameters of the second virtual circuit with the QoS parameters of the first virtual circuit to determine network alarm information.

L'invention concerne un procédé et un système de surveillance d'un premier circuit virtuel dans un réseau à mode de transfert asynchrone (MTA). Ce procédé consiste à établir dans le réseau un second circuit virtuel comportant le même canal et les mêmes paramètres QoS (qualité de service) que le premier circuit virtuel. Ce procédé consiste également à surveiller le premier circuit virtuel en déterminant les paramètres QoS du second circuit virtuel. D'une manière spécifique, une station de surveillance (100A, 100B) détermine les paramètres QoS du second circuit virtuel en introduisant des informations de surveillance dans des cellules transmises et reçues sur le second circuit virtuel. La station de surveillance (100A, 100B) introduit les informations de surveillance immédiatement avant la transmission de chaque cellule et immédiatement après la réception de chaque cellule. En outre, la station de surveillance (100A, 100B) compare les paramètres QoS du second circuit virtuel avec les paramètres QoS du premier circuit virtuel afin de déterminer des informations d'alarme de réseau.

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