Method and device for advertising routing information and method and system for implementing packet routing
US8107484B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 17, 2009 |
| Grant date | Jan 31, 2012 |
| Priority date | — |
| Expiry date | Oct 11, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
The present disclosure discloses a method and device for advertising routing information and a method and system for implementing packet routing. The method for advertising routing information includes a routing information advertising device that obtains its address information; the routing information advertising device adds the address information to routing information to advertise; and the routing information advertising device advertises the routing information that carries the address information. With the technical solution of the present disclosure, the number of routing tables in a backbone network may be greatly reduced. This minimizes the rise of router costs and effectively avoids slower route convergence. In addition, a router in the backbone network can dynamically obtain address information of a core router that advertises an aggregate prefix, such that it may be easier to implement registration, update and query the mapping between a more detailed address prefix and a border router.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.