Global provisioning of zero-bandwidth traffic engineering label switched paths
US8576720B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 14, 2009 |
| Grant date | Nov 5, 2013 |
| Priority date | — |
| Expiry date | Oct 9, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/507
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method of load balancing zero-bandwidth Traffic Engineering Label Switching Paths (0-bw TE LSPs) in a communication network having a plurality of network nodes and a plurality of network links connecting the nodes. The method may be implemented in a centralized Path Computation Element (PCE) or in an ingress router. Each equal cost path from a source node to a destination node is identified from network topology information. A probability of selecting each equal cost shortest path is determined using an iterative Global Load balancing Algorithm (GLA) and each 0-bw TE LSP is provisioned with a specific probability such that the 0-bw TE LSPs are uniformly distributed over all network links.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.