Enhancing the traffic carrying capacity of telecommunication networks

• US 7,668,135 B2
• Filed: 04/26/2005
• Issued: 02/23/2010
• Est. Priority Date: 04/26/2004
• Status: Expired due to Fees

• Current Assignee: The Board of Regents of the University of Colorado (University of Colorado System)
• Original Assignee: The Board of Regents of the University of Colorado (University of Colorado System)
• Inventors: Qu, Yingzhen, Verma, Pramode K.
• Primary Examiner(s): Bhattacharya; Sam
• Application Number:
  US11/114,619
• Publication Number:
  US 20050237936A1
• Time in Patent Office: 1,764 Days
• Field of Search: 370/232, 370/235, 370/252, 370/445, 370/461
• US Class Current: 370/329
• CPC Class Codes: H04L 45/00 Routing or path finding of packets in data switching networks routing or path finding in wireless networks H04W40/00
• CPC Class Codes: H04L 45/122 by minimising distances, e.g. by selecting a route with minimum of number of hops
• CPC Class Codes: H04L 45/62 Wavelength based optical switching H04Q11/0062

Abstract

The present invention relates to methods and systems for enhancing the traffic carrying capacity of telecommunication networks, in particular those involving optical networks and dense wavelength division multiplexing (DWDM).

Claims

1. A method for enhancing the carrying capacity of a network, comprising the steps of:

detecting the level of traffic incident on the network; and

routing traffic by classifying traffic requests based upon the number of hops from a source node to a destination node, and providing selective preference to at least one class of traffic having a lesser number of hops relative to another class of traffic when the level of traffic incident on the network reaches a threshold level.

4. The method of claim 1, wherein the at least one class of traffic is selected from the group consisting of single-hop and multiple-hop traffic.

2. A network router for use in routing traffic on a network, the network router comprising:

a processor detecting a level of traffic incident on a network and routing traffic by classifying traffic requests based upon the number of hops from a source node to a destination node, and providing selective preference to at least one class of traffic having a lesser number of hops relative to another class of traffic when the level of traffic incident on the network reaches a threshold level.

3. The network router of claim 2, wherein the at least one class of traffic is selected from the group consisting of single-hop and multiple-hop traffic.