Architecture for virtualization and distribution of routing information used in a transport network
US9413637B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 22, 2012 |
| Grant date | Aug 9, 2016 |
| Priority date | — |
| Expiry date | Dec 2, 2033 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/12
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method, apparatus and computer program product for distribution of routing information used in a transport network is presented. In a transport network having a plurality of edge devices and core devices, a main instance of a protocol is used for shortest path and tree computation. A multicast tree is defined per Virtual Services Network (VSN) to distribute Link State Data Base (LSDB) updates that only apply to members of said VSN. Multicast trees are built using a secondary instance of the control protocol LSDB and wherein each VSN multicast tree represents a separate instance of the secondary instance of the control protocol LSD. LSDB updates are distributed that only apply to members of the VSN using the multicast tree for the VSN.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.