Routing method and system

Abstract

A method for routing data over a telecommunications carrier network including at least two switching devices defining at least one physical link, the method including defining in advance a plurality of traffic flows, each associated with specific routing through at least one of the physical links in the network; configuring a routing system according to the traffic flows; collecting data of traffic transmitted over at least some of the traffic flows, calculating traffic statistics, from the collected data, for each of the flows in the network; and re-calculating the routing system configuration utilizing the calculated traffic statistics.

Description

RELATED APPLICATIONS[0001]The present application is a divisional of U.S. Ser. No. 11 / 335,955 filed 19 Jan. 2006 and claims priority from Israel Patent Application 166390 filed 19 Jan. 2005.FIELD OF THE INVENTION[0002]The present invention relates to a routing method and system for a telecommunications carrier network, in general and, in particular, to a method and system for routing data traffic over a telecommunications carrier network.BACKGROUND INFORMATION[0003]Packet switched networks are generally (at the data link layer), connectionless, shared bandwidth networks which interconnect nodes in an arbitrary way. In order to establish a connection between the nodes for transmission of data, a routing mechanism is required. Current routing protocols are designed to cope with dynamic and unpredictable volumes of data transfer through networks that are characterized by dynamic topology composed of many nodes that communicate with each other in an arbitrary and random way. These netwo...

AI Technical Summary

Benefits of technology

[0021]According to a preferred embodiment of the invention, the exemplary method is implemented in layer 2, the data layer of the telecommunications network. At this layer, it may be much simpler, more efficient, may require fewer calculations, and may be less expensive to change the routing of the data, which has not yet been processed. Alternatively, it is possible to implement the exemplary method of the invention in other network layers, such as layer 3 (static IP routing) or network layer 1 (Lambda routing).

Problems solved by technology

It has now been appreciated that, since the various routes through carrier networks are known in advance and relatively unchanging, when upgrading carrier networks to packet or frame-based metro networks, it may be inefficient to constantly check the state of traffic at the various nodes and replace routing tables, as in IP and similar networks.

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