Call setup systems and methods using dynamic link tagging and overbooking of links in multi-domain transport networks
US9172658B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 4, 2013 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Aug 23, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L47/724
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Call setup methods in a multi-domain network and a multi-domain network use dynamic link tagging and/or overbooking of External Network-Network Interface (ENNI) links. Thus, improved call setup systems and methods include two approaches to improve upon the responsiveness of the network for connection setups including bandwidth reservation in optical networks using “dynamic link tags” and link overbooking in optical networks based on a greedy approach. The bandwidth reservation and the link overbooking can be utilized together or separately to improve call setup. Advantageously, the improved call setup systems and methods can provide a generic bandwidth reservation mechanism, such as in Automatically Switched Optical Network (ASON) networks, to overcome the limitation of ENNI in concurrently updating the abstract link bandwidth and thereby improving the responsiveness of the network.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.