Routing system, control element, routing method and forming method for exchanging table and forwarding table
US7936756B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 2008 |
| Grant date | May 3, 2011 |
| Priority date | — |
| Expiry date | Mar 17, 2029 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L45/00
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
In a routing method, a control element firstly forms a forwarding table and an exchanging table according to a routing table. Next, a first forwarding element receives a packet, and then obtains a label from the forwarding table according to a destination address of the packet, and determines to output the packet from the first forwarding element or a second forwarding element according to the label. If the packet is to be outputted from the first forwarding element, it is directly outputted to the destination address of the packet; otherwise the second forwarding element receives the packet and the label. Next, the second forwarding element obtains a next forwarding path from the exchanging table according to the label to forward the packet. The control element and the first and second forwarding elements constitute a routing system.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.